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Figure 1: Adsorption of a drop of waste oil within seconds by a leaf of the floating fern Salvinia molesta. Abbildung 1 © W. Barthlott, M. Mail/Universität Bonn
Figure 1: Adsorption of a drop of waste oil within seconds by a leaf of the floating fern Salvinia molesta.
14.12.2023

Self-driven and sustainable removal of oil spills in water using textiles

Researchers at the ITA, the University of Bonn and Heimbach GmbH have developed a new method for removing oil spills from water surfaces in an energy-saving, cost-effective way and without the use of toxic substances. The method is made possible by a technical textile that is integrated into a floating container. A single small device can remove up to 4 liters of diesel within an hour. This corresponds to about 100 m2 of oil film on a water surface.
 
Despite the steady expansion of renewable energies, global oil production, oil consumption and the risk of oil pollution have increased steadily over the last two decades. In 2022, global oil production amounted to 4.4 billion tons! Accidents often occur during the extraction, transportation and use of oil, resulting in serious and sometimes irreversible environmental pollution and harm to humans.

There are various methods for removing this oil pollution from water surfaces. However, all methods have various shortcomings that make them difficult to use and, in particular, limit the removal of oil from inland waters.

Researchers at the ITA, the University of Bonn and Heimbach GmbH have developed a new method for removing oil spills from water surfaces in an energy-saving, cost-effective way and without the use of toxic substances. The method is made possible by a technical textile that is integrated into a floating container. A single small device can remove up to 4 liters of diesel within an hour. This corresponds to about 100 m2 of oil film on a water surface.
 
Despite the steady expansion of renewable energies, global oil production, oil consumption and the risk of oil pollution have increased steadily over the last two decades. In 2022, global oil production amounted to 4.4 billion tons! Accidents often occur during the extraction, transportation and use of oil, resulting in serious and sometimes irreversible environmental pollution and harm to humans.

There are various methods for removing this oil pollution from water surfaces. However, all methods have various shortcomings that make them difficult to use and, in particular, limit the removal of oil from inland waters.

For many technical applications, unexpected solutions come from the field of biology. Millions of years of evolution led to optimized surfaces of living organisms for their interaction with the environment. Solutions - often rather unfamiliar to materials scientists and difficult to accept. The long-time routine examination of around 20,000 different species showed that there is an almost infinite variety of structures and functionalities. Some species in particular stand out for their excellent oil adsorption properties. It was shown that, e.g., leaves of the floating fern Salvinia molesta, adsorb oil, separate it from water surfaces and transport it on their surfaces (Figure 1, see also the video of the phenomon.).

The observations inspired them to transfer the effect to technical textiles for separating oil and water. The result is a superhydrophobic spacer fabric that can be produced industrially and is therefore easily scalable.

The bio-inspired textile can be integrated into a device for oil-water separation. This entire device is called a Bionic Oil Adsorber (BOA). Figure 2: Cross-section of computer-aided (CAD) model of the Bionic Oil Adsorber. The scheme shows an oil film (red) on a water surface (light blue). In the floating cotainer(gray), the textile (orange) is fixed so that it is in contact with the oil film and the end protrudes into the container. The oil is adsorbed and transported by the BOA textile. As shown in the cross-section, it enters the contain-er, where it is released again and accumulates at the bottom of the container. See also the video regarding the oil absorption on the textile, source ITA).
 
Starting from the contamination in the form of an oil film on the water surface, the separation and collection process works according to the following steps:

  • The BOA is introduced into the oil film.
  • The oil is adsorbed by the textile and separated from the water at the same time.
  • The oil is transported through the textile into the collection container.
  • The oil drips from the textile into the collection container.
  • The oil is collected until the container is emptied.

The advantage of this novel oil separation device is that no additional energy has to be applied to operate the BOA. The oil is separated from the surrounding water by the surface properties of the textile and transported through the textile driven solely by capillary forces, even against gravity. When it reaches the end of the textile in the collection container, the oil desorbs without any further external influence due to gravitational forces. With the current scale approximately 4 L of diesel can be separated from water by one device of the Bionic Oil Adsorber per hour.

  • It seems unlikely that a functionalized knitted spacer textile is cheaper than a conventional nonwoven, like it is commonly used for oil sorbents. However, since it is a functional material, the costs must be related to the amount of oil removed. In this respect, if we compare the sales price of the BOA textile with the sales prices of various oil-binding nonwovens, the former is 5 to 13 times cheaper with 10 ct/L oil removed.
    Overall, the BOA device offers a cost-effective and sustainable method of oil-water separation in contrast to conventional cleaning methods due to the following advantages:
  • No additional energy requirements, such as with oil skimmers, are necessary
  • No toxic substances are introduced into the water body, such as with oil dispersants
  • The textiles and equipment can be reused multiple times
  • No waste remains inside the water body
  • Inexpensive in terms of the amount of oil removed.
  • The team of researchers from the ITA, the University of Bonn and Heimbach GmbH was able to prove that the novel biomimetic BOA technology is surprisingly efficient and sustainable for a self-controlled separation and automatic collection of oil films including their complete removal from the water. BOA can be asapted for open water application but also for the use in inland waters. Furthermore, it is promising, that the textile can be used in various related separation processes. The product is currently being further developed so that it can be launched on the market in 2-3 years.

 

Source:

ITA – Institut für Textiltechnik of RWTH Aachen University

Award winners with foundation chairman, foundation MD and professors (c) VDMA e.V. Textile Machinery
Award winners with foundation chairman, foundation MD and professors
08.12.2023

Walter Reiners Foundation honours young engineers

As part of the Aachen-Dresden-Denkendorf International Textile Conference in Dresden, the Chairman of the Walter Reiners Foundation of the VDMA, Peter D. Dornier, presented awards to four successful young engineers. Two promotion prizes and two sustainability prizes were awarded in the Bachelor and Diploma/Master categories. Academic works in which solutions for resource-saving products and technologies are developed are eligible for the sustainability prizes.

A sustainability prize worth 3,000 euros in the Bachelor's category was awarded to Franziska Jauch, Niederrhein University of Applied Sciences, for her Bachelor's thesis on pigment digital printing in denim production.

The promotion prize in the Bachelor's category, also worth 3,000 euros, went to Annika Datko, RWTH Aachen, for her work on determining the polyester content in used textiles.

Dave Kersevan, TU Dresden, was honoured with a sustainability prize in the Diploma/Master's category, endowed with 3,500 euros. The subject of his thesis was the development of a laboratory system for the production of needled carbon preforms.

As part of the Aachen-Dresden-Denkendorf International Textile Conference in Dresden, the Chairman of the Walter Reiners Foundation of the VDMA, Peter D. Dornier, presented awards to four successful young engineers. Two promotion prizes and two sustainability prizes were awarded in the Bachelor and Diploma/Master categories. Academic works in which solutions for resource-saving products and technologies are developed are eligible for the sustainability prizes.

A sustainability prize worth 3,000 euros in the Bachelor's category was awarded to Franziska Jauch, Niederrhein University of Applied Sciences, for her Bachelor's thesis on pigment digital printing in denim production.

The promotion prize in the Bachelor's category, also worth 3,000 euros, went to Annika Datko, RWTH Aachen, for her work on determining the polyester content in used textiles.

Dave Kersevan, TU Dresden, was honoured with a sustainability prize in the Diploma/Master's category, endowed with 3,500 euros. The subject of his thesis was the development of a laboratory system for the production of needled carbon preforms.

This year's promotion award in the Diploma/Master's category, endowed with prize money of 3,500 euros, went to Flávio Diniz from RWTH Aachen. The subject of his Master's thesis was the feasibility of manufacturing ultra-thin carbon fibres.

The award ceremony 2024 will take place in April at the VDMA stand at the Techtextil fair in Frankfurt.

Prof. Dr Tae Jin Kang (Seoul National University), Dr Musa Akdere (CarboScreen), Dr Christian P. Schindler (ITMF), from left to right. Source: ITMF
Prof. Dr Tae Jin Kang (Seoul National University), Dr Musa Akdere (CarboScreen), Dr Christian P. Schindler (ITMF), from left to right.
01.12.2023

Faster and cheaper carbon fibre production with CarboScreen

Faster and more cost-effective carbon fibre production - the technology of the start-up CarboScreen comes a good deal closer to this dream. The founders Dr. Musa Akdere, Felix Pohlkemper and Tim Röding from the Institut für Textiltechnik (ITA) of RWTH Aachen University are using sensor technology to monitor carbon fibre production, thereby doubling the production speed from the current 15 to 30 m/min in the medium term and increasing turnover by up to €37.5 million per year and system. This ground-breaking development also impressed the jury at the ITMF at their Annual Conference in Keqiao, China, and was honoured with the ITMF StartUp Award 2023 on 6 November 2023.

Dr. Musa Akdere accepted the award on behalf of the CarboScreen founding team.

Carbon fibres can only develop their full potential if they are not damaged during production and further processing. Two types of fibre damage occur more frequently during fibre production: Superficial or mechanical damage to the fibres or damage to the chemical structure.

Faster and more cost-effective carbon fibre production - the technology of the start-up CarboScreen comes a good deal closer to this dream. The founders Dr. Musa Akdere, Felix Pohlkemper and Tim Röding from the Institut für Textiltechnik (ITA) of RWTH Aachen University are using sensor technology to monitor carbon fibre production, thereby doubling the production speed from the current 15 to 30 m/min in the medium term and increasing turnover by up to €37.5 million per year and system. This ground-breaking development also impressed the jury at the ITMF at their Annual Conference in Keqiao, China, and was honoured with the ITMF StartUp Award 2023 on 6 November 2023.

Dr. Musa Akdere accepted the award on behalf of the CarboScreen founding team.

Carbon fibres can only develop their full potential if they are not damaged during production and further processing. Two types of fibre damage occur more frequently during fibre production: Superficial or mechanical damage to the fibres or damage to the chemical structure.

Both types of damage cannot be optimally detected by current means or only become apparent after production, to name just two examples. This leads to higher production costs. In an emergency, faulty production can even lead to plant fires. For this reason, and to ensure good production quality, the system is run at 15 m/min below its production capacity for safety reasons. However, 30 m/min or more would be possible. With the sensor-based online monitoring of CarboScreen, the production capacity can be doubled to 30 /min. This would lead to higher production, resulting in lower manufacturing costs and wider use of carbon fibres in mass markets such as automotive, aerospace and wind energy.

More information:
carbon fibers sensors Startup
Source:

ITA – Institut für Textiltechnik of RWTH Aachen University
 

Professor Dr Thomas Gries with the award winner Flávio André Marter Diniz Hanns-Voith-Stiftung, Oliver Voge
Professor Dr Thomas Gries with the award winner Flávio André Marter Diniz
11.07.2023

Future cost reduction through ultra-thin PE carbon fibres

  • ITA Master's graduate wins Hanns Voith Foundation Award 2023

In his Master's thesis, Flávio André Marter Diniz, a graduate of the Institut für Textiltechnik of RWTH Aachen University (ITA), developed ultra-thin polyethylene (PE) carbon fibres with a filament diameter 2-3 times smaller than usual. In addition, the use of PE-based precursors will make it possible to reduce the price of carbon fibres by 50 per cent in the future, thus opening up a wide range of other possible applications in key industries such as wind power, aerospace and automotive. For this groundbreaking development, Marter Diniz was awarded the Hanns Voith Prize with the Hanns Voith Foundation Award in the category "New Materials". The prize is endowed with € 5,000 in prize money.

Flávio André Marter Diniz won the prize in the category "New Materials" for his master thesis entitled "Investigation of the stabilisation and carbonisation process for the production of ultra-thin polyethylene-based carbon fibres".

  • ITA Master's graduate wins Hanns Voith Foundation Award 2023

In his Master's thesis, Flávio André Marter Diniz, a graduate of the Institut für Textiltechnik of RWTH Aachen University (ITA), developed ultra-thin polyethylene (PE) carbon fibres with a filament diameter 2-3 times smaller than usual. In addition, the use of PE-based precursors will make it possible to reduce the price of carbon fibres by 50 per cent in the future, thus opening up a wide range of other possible applications in key industries such as wind power, aerospace and automotive. For this groundbreaking development, Marter Diniz was awarded the Hanns Voith Prize with the Hanns Voith Foundation Award in the category "New Materials". The prize is endowed with € 5,000 in prize money.

Flávio André Marter Diniz won the prize in the category "New Materials" for his master thesis entitled "Investigation of the stabilisation and carbonisation process for the production of ultra-thin polyethylene-based carbon fibres".

The use of carbon fibres in highly stressed lightweight construction solutions, such as today's growth applications of wind turbines or pressure tanks, has become indispensable due to their excellent mechanical properties and low density. High manufacturing costs of conventional PAN precursor-based carbon fibres make the material very cost-intensive. In addition, it is not sufficiently available. New manufacturing approaches that develop alternative raw materials and manufacturing processes can be a key and growth engine for further industrial composites applications.

The aim of the work was to develop a new and cost-effective manufacturing process for high-quality ultra-thin carbon fibres using a polyethylene precursor. For this purpose, the sulphonisation process, which is time-consuming today, was to be significantly shortened. As a result, Mr. Marter Diniz produced novel ultra-thin polyethylenebased carbon fibres with a filament diameter < 3 μm with an excellent surface quality of the fibres without detectable structural defects. The fibre diameter is 2-3 times smaller than that of conventional PANbased CF. This provides the basis for mechanically high-quality material properties. At the same time, Mr. Marter Diniz was able to reduce the sulphonisation time by 25 percent. The developed material and technology set important milestones on the way to cheaper carbon fibres. With PE-based precursors, the price of CF can be reduced by 50 percent compared to conventional PAN-based CF.  

A total of five other young scientists were awarded in six categories (Drive Technology, Innovation & Technology/Artificial Intelligence, New Materials, Paper, Hydropower and Economic Sciences. This year, for the 10th time, the Hanns Voith Foundation awarded the Hanns Voith Prize to outstanding young scientists.

Source:

ITA Institut für Textiltechnik of RWTH Aachen University

Dr Ioana Slabu and Benedict Bauer with the nanomodified stent. Photo Peter Winandy
30.03.2023

Nanomodified polymerstent: Novel technology for tumour therapy

  • Electromagnetically heatable nanomodified stent for the treatment of hollow organ tumours wins second place at the RWTH Innovation Award

Almost every fourth person who dies of cancer has a hollow organ tumour, for example in the bile duct or in the oesophagus. Such a tumour cannot usually be removed surgically. It is only possible to open the hollow organ for a short time using a stent, i.e. a tubeshaped prosthesis. However, the tumour grows back and penetrates the hollow organ through the stent. Ioana Slabu from the Institute of Applied Medical Technology and Benedict Bauer from the Institut für Textiltechnik of RWTH Aachen University have now developed a novel technology for the therapy of hollow organ tumours, which was awarded second place in the RWTH Innovation Award. This involves a polymerstent that contains magnetic nanoparticles. When electromagnetic fields are applied, these nanoparticles lead to a controlled heating of the stent material and thus of the tumour. Because the tumour reacts much more sensitively to heat than healthy tissue, it is destroyed and the hollow organ remains open. Thus, the stent develops a self-cleaning effect.  

  • Electromagnetically heatable nanomodified stent for the treatment of hollow organ tumours wins second place at the RWTH Innovation Award

Almost every fourth person who dies of cancer has a hollow organ tumour, for example in the bile duct or in the oesophagus. Such a tumour cannot usually be removed surgically. It is only possible to open the hollow organ for a short time using a stent, i.e. a tubeshaped prosthesis. However, the tumour grows back and penetrates the hollow organ through the stent. Ioana Slabu from the Institute of Applied Medical Technology and Benedict Bauer from the Institut für Textiltechnik of RWTH Aachen University have now developed a novel technology for the therapy of hollow organ tumours, which was awarded second place in the RWTH Innovation Award. This involves a polymerstent that contains magnetic nanoparticles. When electromagnetic fields are applied, these nanoparticles lead to a controlled heating of the stent material and thus of the tumour. Because the tumour reacts much more sensitively to heat than healthy tissue, it is destroyed and the hollow organ remains open. Thus, the stent develops a self-cleaning effect.  

Ioana Slabu of the AME explains: "Not only can we drastically reduce treatment costs, but above all we can provide relief for millions of patients worldwide.
 
A manufacturing process and proof of concept for magnetic hyperthermia are already in place. This novel technology has a very high development potential because it can also be used for tumours in other parts of the body such as the prostate, stomach, intestine or urinary bladder or for cardiovascular diseases.  

The AiF/IGF project started under the project title "ProNano" funded by BMWK. Now the approval for the follow-up project "ProNano2" has also been received. The approved project is called: "Validation of the innovation potential of heatable stents for heat-induced treatment of cavity tumours" and is funded by BMBF in course of the VIP+ program. With the Clinic for General, Visceral and Transplantation Surgery of the University Hospital Aachen and the Institute for Technology and Innovation Management at RWTH Aachen University, the consortium is enriched by clinical and economic expertise. Every year, RWTH Aachen University honours particularly innovative university projects with the Innovation Award. Professor Malte Brettel, Prorector for Business and Industry, presented the certificates to four outstanding projects as part of RWTHtransparent.

Source:

ITA – Institut für Textiltechnik of RWTH Aachen University

(c) AVK - Industrievereinigung Verstärkte Kunststoffe e. V.
24.11.2021

The AVK – Industrievereinigung Verstärkte Kunststoffe – presents its Innovation Awards 2021

The AVK – Industrievereinigung Verstärkte Kunststoffe – has once again presented its Innovation Awards to companies, institutes and their partners. Three composites innovations were recognised in each of the three categories – “Innovative Products/Applications”, “Innovative Processes” and “Research and Science” – at the new event JEC Forum DACH on 23 November 2021, the first edition of which was held in Frankfurt.

“As usual, the submissions included a lot of very interesting and promising products and processes this year. The Innovation Awards highlight the outstanding efficiency, cost-effectiveness and sustainability of fibre-reinforced plastics as well as the companies and institutes operating in the sector,” explains Dr. Elmar Witten, Managing Director of the AVK. The jury of leading experts from the industry honoured the following innovations this year:

The AVK – Industrievereinigung Verstärkte Kunststoffe – has once again presented its Innovation Awards to companies, institutes and their partners. Three composites innovations were recognised in each of the three categories – “Innovative Products/Applications”, “Innovative Processes” and “Research and Science” – at the new event JEC Forum DACH on 23 November 2021, the first edition of which was held in Frankfurt.

“As usual, the submissions included a lot of very interesting and promising products and processes this year. The Innovation Awards highlight the outstanding efficiency, cost-effectiveness and sustainability of fibre-reinforced plastics as well as the companies and institutes operating in the sector,” explains Dr. Elmar Witten, Managing Director of the AVK. The jury of leading experts from the industry honoured the following innovations this year:

Category “Research and Science”
First place in the “Research and Science” category was awarded to the German Aerospace Center (DLR) for its Bondline Control Technology (BCT). This innovative process is used for quality control and assurance of bonded joints. The core element is a porous fabric which is applied to a joining surface using an epoxy adhesive or matrix resin. Peeling away the fabric creates a chemically reactive and undercut surface and can also be used as a test to check adhesion to the substrate. BCT has potential in a variety of possible applications. For example, peel ply can be replaced by BCT fabric to produce composite components with an optimised joining surface. The cost-effective BCT peel test is suitable for coupon testing and process control. In addition, the combined adhesion test and surface pre-treatment can be used for quality assurance of bonded repairs on fibre composite structures.

Second place was taken by the Institute of Textile Technology (ITA) at RWTH Aachen University and its partners AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR with “StoneBlade – Lightweight construction with granite for the wind industry”. This innovation enables manufacturers to reduce the amount of non-recyclable materials used in rotor blade construction. At the same time, it reduces the weight of these components and improves the mechanical properties relating to the stability of wind turbines. The innovative approach replaces glass-fibre reinforced plastic in the blade components with hard rock – a natural, cost-effective and recyclable lightweight material. The slabs of rock are cut and ground to a thickness of just a few millimetres and embedded in a fibre composite laminate with carbon fibre, which stabilises them for alternating load cases. The pre-stressed material is pressure-stable in the composite and can absorb tensile forces in the event of continuously alternating loads without any loss of stiffness.

Third place went to the Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK) with its partner Mercedes Benz AG for the interdisciplinary development of a highly integrated inductive charging module for electric vehicles. The ultra-thin charging module was designed to make optimum use of space in the vehicle underbody without reducing ground clearance. An interdisciplinary approach was adopted for the development process. This involved the electrical, mechanical and process characterisation of high-frequency Litz wires, ferromagnetic foil and metal wire cloth as well as the creation of a simulation model. The result is a demonstrator for a charging system with a structural height of 15 mm and a total weight of 8 kg. It achieves a transmission efficiency of up to 92 percent at 7.2 kW nominal power and active air cooling. The hardware demonstrator was fabricated in a 3-step process using RTM and VARI techniques.

Overview of all the winners in the three categories:
Category “Innovative Products/Applications”
1st Place: “Traffic signs from Nabasco (N-BMC)” – Nabasco Products BV and Lorenz Kunststofftechnik GmbH, partners: Pol Heteren BV and NPSP BV
2nd Place: “Novel, ultratough vinyl ester resin for the construction of large marine vessels” Evonik Operations GmbH
3rd Place: “Air intake housing with a multi-material design for gas turbines” – MAN Energy Solutions SE, Leichtbau-Zentrum Sachsen GmbH and Leichtbau-Systemtechnologien KORROPOL GmbH.
Category “Innovative Processes”
1st Place: “In-mould wrapping” off-tool, film-coated, fibre composite components for exterior applications – BMW Group, Partner: Renolit SE
2nd Place: “Adaptive automated repair of composite structural components in the aviation sector” – Lufthansa Technik AG, Partner: iSAM AG
3rd Place: “Automated surface pre-treatment using VUV excimer lamps” – CTC GmbH
Category “Research and Science”
1st Place: “Bondline Control Technology (BCT)” – German Aerospace Center (DLR)
2nd Place: “StoneBlade – Lightweight construction with granite for the wind industry” – Institute of Textile Technology at RWTH Aachen University, Partners: AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR
3rd Place: “Interdisciplinary development of a highly integrated inductive charging module for electric vehicles” – Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK), Partner: Mercedes Benz AG

Submissions for the next Innovation Award can be made from the end of January 2022.

Source:

AVK - Industrievereinigung Verstärkte Kunststoffe e. V.

ITA
04.05.2021

2021 Aachen Reinforced! Symposium free of charge for all attendees

Institut für Textiltechnik of RWTH Aachen University has changed the format of the 2021 Aachen Reinforced! Symposium to an online only format. The programme was shortened to suit the new format, with presentations taking place on Monday 10th May and Tuesday 11th May.

Institut für Textiltechnik of RWTH Aachen University has changed the format of the 2021 Aachen Reinforced! Symposium to an online only format. The programme was shortened to suit the new format, with presentations taking place on Monday 10th May and Tuesday 11th May.

The conference program for Monday, 10th May:
The programme will begin with exciting presentations on glass chemistry and fibres. A talk by Dr Anne Berthereau (Owens Corning Composites) on the race for always higher modulus glass fibres will be followed by a talk from Dr Hong Li (Nippon Electric Glass) on the potential of new high-strength and high-modulus glass fibres.
After two further presentations on high modulus and bioactive glass fibres from Muawia Dafir and Julia Eichhorn (TU Bergakademie Freiberg), we will learn about furnace efficiency as well as process monitoring and digitalisation in glass fibre production from René Meulemann (CelSian), Hans Gedon (Gedonsoft) and Julius Golovatchev (Incotelogy) respectively.
A presentation by Felix Quintero Martínez (Universidade de Vigo) will explore a novel method to produce ultra-flexible glass nanofibers.
The afternoon will continue with two presentations by Dr Christina Scheffler (Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)) and Professor James Thomason (University of Strathclyde) in the field of glass fibre sizings and fibre-matrix interfaces. Finally, a closing presentation by Steve Bassetti (Michelman) will conclude the first day of the Symposium.

The entire conference programme is available on the website https://aachen-fibres.com/aachen-reinforced/general-information.
To register for the Symposium, use the following link: https://aachen-fibres.com/aachen-reinforced/registration

AMAC kooperiert mit ITA (Institut für Textiltechnik der RWTH Aachen und deren ITA GmbH) für die weitere Geschäftsentwicklung im Bereich Composites  © AMAC
fltr: Markus Beckmann, Prof. Thomas Gries, Dr. Michael Effing, Dr. Christoph Greb
19.04.2021

AMAC cooperates with ITA

AMAC cooperates with ITA (Institute for Textile Technology of RWTH Aachen University and their ITA GmbH) for the business development in composites 

As of April 19th, 2021, AMAC is pleased to announce its cooperation with the Institute for Textile Technology, ITA, of RWTH Aachen University and their ITA GmbH. The aim of the cooperation is to strengthen and develop their business activities in composites.

AMAC cooperates with ITA (Institute for Textile Technology of RWTH Aachen University and their ITA GmbH) for the business development in composites 

As of April 19th, 2021, AMAC is pleased to announce its cooperation with the Institute for Textile Technology, ITA, of RWTH Aachen University and their ITA GmbH. The aim of the cooperation is to strengthen and develop their business activities in composites.

ITA, as one of the largest institutes on the campus of the excellence University RWTH Aachen, Germany, develops complete solutions from the manufacturing of the fiber itself over the processing of textile intermediates with thermoplastic and thermoset resins, textile-based part manufacturing, capabilities such as braiding, pultrusion and in-situ impregnation of textile preforms. Top 3 focused industries are transportation and particularly the e-mobility sector, building and construction as well as the wind energy sector. Additionally, ITA GmbH is the partner of the industry in R&D, focusing on 8 business segments, providing technology and knowledge transfer, as well as offering comprehensive solutions along the entire textile value chain.

Prof. Dr. Thomas Gries, Director of ITA, explains the background of the strategic cooperation with focus on composites: „Our long-term experience and unmatched know-how with all aspects of continuous fibers, non-wovens and web-based reinforcements allows us to deliver to the composite manufacturers a complete technology and service offer around the development of technical textiles, from the development of glass and carbon fibers to the textile-based processing of composite parts. In all process steps of our research and developments, we focus on sustainable and recyclable solutions, an efficient cost-performance ratio, the possible use of bio-based materials and the reduction of the CO2 footprint. We are glad to cooperate with Dr. Michael Effing and AMAC in order to benefit from his door-opening network in the composites industry. “

Dr. Michael Effing, Managing Director of AMAC GmbH: „I am very happy to support the ITA to generate innovation thanks to further industrial networking and pre-competitive joint projects. ITA is indeed a one-stop source for composite solutions from the fiber to the cost-efficient manufacturing of final parts. In the context of the Covid-19 impact to the entire industry, it makes sense to bundle forces. Furthermore, ITA, with its long tradition and satisfied customers offers further valuable networking opportunities to the composites industry as well as access to relevant complementary fiber-based excellence and 250 different technologies in their machine-park with an outstanding infrastructure in Aachen.”

23.11.2020

AMAC cooperates with start-up FibreCoat

Cooperation and business development with AMAC
As of November 1st, 2020, AMAC is pleased to announce its cooperation with company FibreCoat for the market introduction of their products and global business development. FibreCoat is a young, award-winning start-up and spin-off of the RWTH Aachen University in Germany and develops multi-filament coated yarns, fabrics and composites based on glass or basalt fibres.

Dr. Michael Effing, CEO AMAC GmbH: „FibreCoat is a very promising newcomer in the electro-magnetic shielding and composites industry and their innovations are very cost-efficient for new technologies such as e-mobility or telecommunications. I am very pleased to introduce them to relevant key players in the industry and accompany them in their growth strategy.“

Product Launch
FibreCoat develops metal-coated fibres like bi-component multi-filament yarns with basalt core and aluminum coating which can be used for EMI-shielding and heat sinks in battery casings, electric diverters in filters, reinforcement of cast aluminum parts o ras conductive yarns in smart textiles.

Cooperation and business development with AMAC
As of November 1st, 2020, AMAC is pleased to announce its cooperation with company FibreCoat for the market introduction of their products and global business development. FibreCoat is a young, award-winning start-up and spin-off of the RWTH Aachen University in Germany and develops multi-filament coated yarns, fabrics and composites based on glass or basalt fibres.

Dr. Michael Effing, CEO AMAC GmbH: „FibreCoat is a very promising newcomer in the electro-magnetic shielding and composites industry and their innovations are very cost-efficient for new technologies such as e-mobility or telecommunications. I am very pleased to introduce them to relevant key players in the industry and accompany them in their growth strategy.“

Product Launch
FibreCoat develops metal-coated fibres like bi-component multi-filament yarns with basalt core and aluminum coating which can be used for EMI-shielding and heat sinks in battery casings, electric diverters in filters, reinforcement of cast aluminum parts o ras conductive yarns in smart textiles.

FibreCoat launches ALUCOAT™, an aluminum-coated glass or basalt fibre which is suitable as electro-magnetic shielding material in automotive applications such as radar, antennas or for autonomous driving as well as for mobile phones and applications in buildings. Due to its extraordinary thermal conductivity and better heat transfer compared to traditional composite material, it can be used for the manufacturing of automotive battery trays or industrial applications such as fine particulate air filters.

ALUCOAT™ is available as of January 1st 2021 as a yarn, fabric or non-woven with a wide range of possible titers and areal weight. The material will offer an electrical conductivity of 100 Ωm and a working temperature of at least 400 °C. Furthermore, it can be used for the shielding of low to high frequencies with an effectiveness of 80 to 120 dB.

Source:

AMAC GmbH

Carbon reinforced concrete today: thin-walled curved barrel shells as roof elements at ITA (c) ITA. Carbon reinforced concrete today: thin-walled curved barrel shells as roof elements at ITA
05.06.2020

DFG funds Collaborative Research Centre / Transregio 280 on carbon reinforced concrete

  • Joint proposal of TUD and RWTH Aachen University

On 29 May, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) decided to fund the Collaborative Research Centre (CRC)/Transregio 280 "Carbon reinforced concrete" at Technische Universität Dresden, short TUD, and RWTH Aachen University with the participation of the Institut für Textiltechnik, short ITA, with 12 million euros over the next four years.

The CRC/Transregio 280 “Design Strategies for Material-Minimised Carbon Reinforced Concrete Structures - Principles of a New Approach to Construction” breaks with the traditional way of designing reinforced concrete plants. The interdependence of reinforcement and matrix is being investigated in depth and a completely new design and construction strategy for building with carbon reinforced concrete is being developed.

  • Joint proposal of TUD and RWTH Aachen University

On 29 May, the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) decided to fund the Collaborative Research Centre (CRC)/Transregio 280 "Carbon reinforced concrete" at Technische Universität Dresden, short TUD, and RWTH Aachen University with the participation of the Institut für Textiltechnik, short ITA, with 12 million euros over the next four years.

The CRC/Transregio 280 “Design Strategies for Material-Minimised Carbon Reinforced Concrete Structures - Principles of a New Approach to Construction” breaks with the traditional way of designing reinforced concrete plants. The interdependence of reinforcement and matrix is being investigated in depth and a completely new design and construction strategy for building with carbon reinforced concrete is being developed.

Carbon reinforced concrete enables completely new design and construction possibilities in the building industry. The reasons for this are its very high strength and the possibility of a very low concrete overlay of only a few millimetres, as carbon, unlike structural steel, does not rust. However, the successful use of the new material, which was awarded the German Future Prize in 2016, requires completely new design and production strategies, which are being investigated in the CRC/Transregio.

Up to now, textile reinforcements have been coated and cured prior to component manufacture. This process is called offline consolidation. These stiff semi-finished products are not suitable for the production of complex components based on new, digital and continuous manufacturing processes (including 3D concrete printing and concrete extrusion). Therefore, ITA is investigating in the sub-project B02 of the CRC/Transregio how forming and consolidation steps are shifted in time by prepreg systems into the concreting process and how they can be applied within the new digital continuous manufacturing processes. In addition to established curing mechanisms, such as by heat or UV radiation, new approaches are also being researched. These new approaches include activation via the alkalinity of the concrete, microwaves and induction

The TUD and RWTH Aachen were awarded the grant on the basis of many years of experience in the research field of textile reinforced concrete. The material textile reinforced concrete was developed in two special research areas at both universities from 1999-2011 and was first fundamentally researched.

19 individual institutes are involved in the CRC/Transregio 280. The spokesman of the TUD is Professor Dr Manfred Curbach, the spokesman of the RWTH is Professor Dr Josef Hegger.

Source:

Institut für Textiltechnik der RWTH Aachen University, ITA

23.09.2019

Tape inserts offer big potential for injection molding parts

Market and technology analysis confirms big potential for tape inserts in the injection molding process. Following the finalization of a major consortial project led by the Aachen Center for Integrative Lightweight Production (AZL) and the Institute for Plastics Processing at RWTH Aachen University (IKV), the result is clear: tape inserts offer enormous potential for injection molding parts. For suitable components, product costs and component properties can be positively influenced.

In cooperation with 20 industrial partners, the two renowned Aachen research institutes AZL and IKV carried out a detailed analysis of tape inserts in injection molded components over a period of eight months. The tapes, which are a few tenths of a millimeter thick, are continuous fibers, typically made of glass or carbon, completely impregnated and embedded in a thermoplastic matrix. The tapes can be precisely aligned to the loads in a component and are used primarily in high-performance applications with the aim of weight reduction. The aim of the conducted analysis was the identification of potential applications and the estimation of a wider range of applications.

Market and technology analysis confirms big potential for tape inserts in the injection molding process. Following the finalization of a major consortial project led by the Aachen Center for Integrative Lightweight Production (AZL) and the Institute for Plastics Processing at RWTH Aachen University (IKV), the result is clear: tape inserts offer enormous potential for injection molding parts. For suitable components, product costs and component properties can be positively influenced.

In cooperation with 20 industrial partners, the two renowned Aachen research institutes AZL and IKV carried out a detailed analysis of tape inserts in injection molded components over a period of eight months. The tapes, which are a few tenths of a millimeter thick, are continuous fibers, typically made of glass or carbon, completely impregnated and embedded in a thermoplastic matrix. The tapes can be precisely aligned to the loads in a component and are used primarily in high-performance applications with the aim of weight reduction. The aim of the conducted analysis was the identification of potential applications and the estimation of a wider range of applications.

The project was divided into several phases: Phase I was used to identify the current status. In 20 interviews with representative companies of the injection molding industry, the researchers gathered why tape inserts have rarely been taken into account so far, when defining the material concepts to be analyzed. The lack of information about the material class, the procedure and tools for the development process and the necessary production technologies were cited as major challenges. This is where the consortium will take action and provide comprehensive information during the “Technology Information Day” on the extensively prepared state of the art and the high degree of maturity of the supply chain. Based on the status quo, they developed a methodology for analyzing the technological and economic potential of tape inserts in injection molding applications.

Both the previous results and the planned follow-up projects are the subject of the “Technology Information Day" at K 2019, to which the companies involved in the study, the AZL and IKV, invite all companies along the value chain, from raw material manufacturers to injection molders to OEMs. (Date: 18th October 2019, 10:00 am to 1:30 pm, Trade Fair Düsseldorf CCD South, Room 002).

The consortium, amongst others consisting of Asahi Kasei Europe GmbH, BASF SE, Borealis AG, BÜFA Thermoplastic Composites GmbH & Co. KG, ENGEL AUSTRIA GmbH, Huesker Synthetic GmbH, LG Hausys R&D Center, Mitsui Chemicals, Nippon Electric Glass, Polyscope Polymers BV, POLYTEC GROUP, Simcon kunststofftechnische Software GmbH, SABIC and Toray International Europe GmbH, is inviting to the “Technology Information Day” at K 2019. The goal is to inform about the technology and to identify topics for future collaboration.

Source:

AZL Aachen GmbH

The lucky winner with the certificate, from left to right: Professor Jens Ridzewski (AVK), Sven Schöfer (ITA), Dr Rudolf Kleinholz (AVK) (c) Reed Exhibitions, Oliver Wachenfeld
The lucky winner with the certificate, from left to right: Professor Jens Ridzewski (AVK), Sven Schöfer (ITA), Dr Rudolf Kleinholz (AVK)
17.09.2019

ITA is AVK innovation prize winner 2019 in the category "Research and Science”

  • Reduction of material usage by up to 50 percent through innovative draping strategy in the production of fibre composite materials

In fibre reinforced plastic (FRP) production, stamp forming is one of the most economical processes for automated large-scale production, e.g. in the BMW i-series. However, the current processes are susceptible to draping errors and a high proportion of waste. An innovative process developed at the Institut für Textiltechnik of RWTH Aachen University, short ITA, can now significantly reduce the scrap rate and reduce the waste rate of high-priced reinforcing textiles, such as carbon fibre textiles, by up to 50 percent. Sven Schöfer from ITA achieved this effect with his work "Development of a textile-based material feed to increase the preform quality during stamp forming of reinforcing layers". On 10 September 2019, he won the third AVK Innovation Prize in the "Research and Science" category at Composite Europe in Stuttgart, Germany.

  • Reduction of material usage by up to 50 percent through innovative draping strategy in the production of fibre composite materials

In fibre reinforced plastic (FRP) production, stamp forming is one of the most economical processes for automated large-scale production, e.g. in the BMW i-series. However, the current processes are susceptible to draping errors and a high proportion of waste. An innovative process developed at the Institut für Textiltechnik of RWTH Aachen University, short ITA, can now significantly reduce the scrap rate and reduce the waste rate of high-priced reinforcing textiles, such as carbon fibre textiles, by up to 50 percent. Sven Schöfer from ITA achieved this effect with his work "Development of a textile-based material feed to increase the preform quality during stamp forming of reinforcing layers". On 10 September 2019, he won the third AVK Innovation Prize in the "Research and Science" category at Composite Europe in Stuttgart, Germany.

Current process
In stamp forming, clamping grippers are usually used in industry to feed the stacked individual layers to the forming process and position them on the lower tool via a clamping frame or hold-down device. Due to the clamping grippers, the cutting proportion of cost-intensive reinforcing textiles is high, as additional material at the textile edge is necessary with clamping systems. Other approaches to feeding the reinforcing semi-finished product during forming and simultaneously improving the draping quality are also not economical: they are usually only designed for certain textile cuts, cannot be automated, are prone to errors or are expensive special solutions.

There is currently no system in the industry that can apply retention forces along a final contour with low waste and remains flexible in terms of geometry.

Innovative approach of Sven Schöfer
The innovative process developed by Sven Schöfer works with a detachable textile joint, a so-called tufting seam. It allows the single layers to slide off during the forming process under a retention force dependent on the seam design.

This reduces or completely eliminates draping errors in previously critical areas, even with complex preform geometries. This leads to a significant increase in preform quality and a reduction in scrap rates. The process is also highly efficient, as tensile forces can be applied to any component geometry on near-net-shape blanks. This reduces the material input by up to 50 percent.

Source:

ITA – Institut für Textiltechnik

18.04.2019

AZL and Partner Institutes present lightweight processes and equipment during AZL Open Day

On April 11th, 2019, the 9 Partner Institutes of the AZL opened the doors of their machinery halls and research labs to provide an extensive and on-site insight into the research and development capaci-ties in the field of lightweight production and composites at the RWTH Aachen Campus. As a special highlight of this year, the AZL presented the "iComposite 4.0" self-optimizing process chain: fiber-spraying - dry fiber placement - adaptive RTM as well as AZL´s new prototype machine development "Ultra-Fast Consolidator Machine" for highly productive and flexible processing of thermoplastic tapes with in-situ consolidation (winner of the JEC World Innovation Award 2019).

More than 100 Participants from external companies as well as from the AZL Network had the possibility to experience updates on the latest lightweight production technologies and equipment, get to know the bene-fital infrastructure on the Campus and network with internationally represented companies of the entire light-weight value chain researches by taking part in five guided tours to the lightweight institutes.

On April 11th, 2019, the 9 Partner Institutes of the AZL opened the doors of their machinery halls and research labs to provide an extensive and on-site insight into the research and development capaci-ties in the field of lightweight production and composites at the RWTH Aachen Campus. As a special highlight of this year, the AZL presented the "iComposite 4.0" self-optimizing process chain: fiber-spraying - dry fiber placement - adaptive RTM as well as AZL´s new prototype machine development "Ultra-Fast Consolidator Machine" for highly productive and flexible processing of thermoplastic tapes with in-situ consolidation (winner of the JEC World Innovation Award 2019).

More than 100 Participants from external companies as well as from the AZL Network had the possibility to experience updates on the latest lightweight production technologies and equipment, get to know the bene-fital infrastructure on the Campus and network with internationally represented companies of the entire light-weight value chain researches by taking part in five guided tours to the lightweight institutes.

The AZL brought together content in the field of textiles (ITA), plastics and composite materials (IKV), pro-duction technology (WZL, IPT, ILT, and ISF), quality assurance and production-integrated measurement technology (WZL), lightweight design (SLA), automotive production (IKA) as well as multi-material systems and process integration (AZL).

Once a year at the Open Day, the AZL offers an exclusive and widespread unique insight into the R&D capacities of the institutes in the field of lightweight and composite technologies on the campus of RWTH Aachen University. Within walking distance, researchers and students from 9 institutes are working on the latest technologies for the cost-efficient development and production of lightweight components within one of the largest research landscapes in Europe. The research, closely involving industrial companies, covers the entire value chain from fiber production, materials and processing technology to quality assurance and com-ponent testing.

More information:
AZL SMC, AZL, RWTH Aachen
Source:

AZL Aachen GmbH

Concrete bar stool with hybrid carbon reinforcement for fast, cost-efficient part production (c) Institut für Textiltechnik of RWTH Aachen University
29.10.2018

ITA at the Composites Europe 2018 in Stuttgart

At the Composites Europe in Stuttgart /06 - 08 November 2018), the Institut für Textiltechnik of RWTH Aachen University, short ITA, will be showing products, components and machines along the fibre composite process chain. The ITA will present itself at the booth of the Aachen Center for Integrative Lightweight Construction (AZL) in hall 9, booth E70. Various demonstrators will be used to present selected innovative processes and products over the individual steps. The exhibits come from different fields of application: From mobility applications to the construction sector. Here is an example from the field of "construction composites":

With the concrete bar stool with hybrid carbon reinforcement, the ITA demonstrates that textiles as reinforcement structures for concrete elements allow a enormous geometrical freedom of Design. So far, manual positioning of the textile reinforcement used to be time-consuming and complex, as permitted tolerances are in the millimetre range. Thus the production mainly contributed to the high costs of textile concrete.

At the Composites Europe in Stuttgart /06 - 08 November 2018), the Institut für Textiltechnik of RWTH Aachen University, short ITA, will be showing products, components and machines along the fibre composite process chain. The ITA will present itself at the booth of the Aachen Center for Integrative Lightweight Construction (AZL) in hall 9, booth E70. Various demonstrators will be used to present selected innovative processes and products over the individual steps. The exhibits come from different fields of application: From mobility applications to the construction sector. Here is an example from the field of "construction composites":

With the concrete bar stool with hybrid carbon reinforcement, the ITA demonstrates that textiles as reinforcement structures for concrete elements allow a enormous geometrical freedom of Design. So far, manual positioning of the textile reinforcement used to be time-consuming and complex, as permitted tolerances are in the millimetre range. Thus the production mainly contributed to the high costs of textile concrete.

At the ITA, the two industrial partners Albani Group GmbH & Co. KG and DuraPact 2.0 Kompetenzzentrum Faserbeton GmbH developed a new hybrid reinforcement with integrated spacer. This hybrid reinforcement reduces the time required to position the reinforcement by up to 60 percent and thus makes the material significantly more

The new, cost-effective hybrid reinforcement contains an integrated spacer and thus faciliates the positioning of dry and coated reinforcements. The integrated spacer allows several layers of reinforcement to be stacked quickly, allowing the desired degree of reinforcement to be set. The hybrid reinforcement consists of a carbon or glass fibre grid joined with a permeable polyamide mat and will be available in roll form from industrial partners in the near future.

More information:
Composites AZL
Source:

Institut für Textiltechnik of RWTH Aachen University

Barhocker aus Beton mit hybrider Carbon-Bewehrung zur schnellen, kosteneffizienten Positionierung der Textilbewehrung (c) Institut für Textiltechnik of RWTH Aachen University
29.10.2018

ITA auf der Composites Europe 2018 in Stuttgart

Das Institut für Textiltechnik der RWTH Aachen University, kurz ITA, zeigt auf der Composites Europe in Stuttgart vom 06.-08. November Produkte, Bauteile und Maschinen entlang der Faserverbundprozesskette. Das ITA präsentiert sich auf dem Stand des Aachener Zentrums für integrativen Leichtbau (AZL) in Halle 9, Stand E70. Anhand verschiedener Demonstratoren werden ausgewählte innovative Prozesse und Produkte über die einzelnen Schritte hin dargestellt. Die Exponate stammen aus unterschiedlichen Anwendungsfeldern: Von Mobilitätsanwendungen bis hin zur Baubranche. Anbei ein Beispiel aus dem Baubereich:

Durch den Barhocker aus Beton mit hybrider Carbon-Textilbewehrung beweist das ITA, dass Textilbetonelemente eine enorme geometrische Gestaltungsfreiheit ermöglichen und gleichzeitig einfach herstellbar sind. Bislang war die manuelle Positionierung der Textilbewehrung zeitaufwändig und komplex, da zulässige Toleranzen im Millimeterbereich liegen. So trug die Fertigung hauptsächlich zu den hohen Kosten von Textilbeton bei.

Das Institut für Textiltechnik der RWTH Aachen University, kurz ITA, zeigt auf der Composites Europe in Stuttgart vom 06.-08. November Produkte, Bauteile und Maschinen entlang der Faserverbundprozesskette. Das ITA präsentiert sich auf dem Stand des Aachener Zentrums für integrativen Leichtbau (AZL) in Halle 9, Stand E70. Anhand verschiedener Demonstratoren werden ausgewählte innovative Prozesse und Produkte über die einzelnen Schritte hin dargestellt. Die Exponate stammen aus unterschiedlichen Anwendungsfeldern: Von Mobilitätsanwendungen bis hin zur Baubranche. Anbei ein Beispiel aus dem Baubereich:

Durch den Barhocker aus Beton mit hybrider Carbon-Textilbewehrung beweist das ITA, dass Textilbetonelemente eine enorme geometrische Gestaltungsfreiheit ermöglichen und gleichzeitig einfach herstellbar sind. Bislang war die manuelle Positionierung der Textilbewehrung zeitaufwändig und komplex, da zulässige Toleranzen im Millimeterbereich liegen. So trug die Fertigung hauptsächlich zu den hohen Kosten von Textilbeton bei.

Am ITA wurde gemeinsam mit den beiden Industriepartnern Albani Group GmbH & Co. KG und DuraPact 2.0 Kompetenzzentrum Faserbeton GmbH eine neue Hybridbewehrung mit integriertem Ab-standshalter entwickelt. Diese Hybridbewehrung senkt die erforderliche Zeit zur Positionierung der Bewehrung um bis zu 60 Prozent und macht den Werkstoff damit deutlich wettbewerbsfähiger.

Die kostengünstige, hybride Bewehrung enthält einen integrierten Abstandshalter und ermöglicht damit die einfache Positionierung von trockenen und beschichteten Bewehrungen. Durch den integrierten Abstandhalter lassen sich schnell mehrere Bewehrungslagen stapeln, wodurch der gewünschte Bewehrungsgrad einstellbar ist. Die Hybridbewehrung besteht aus einem Carbon- oder Glasfasergitter, das mit einer durchlässigen Matte aus Polyamid gefügt ist und in naher Zukunft bei den Industriepartnern als Rollenware erhältlich ist.

More information:
Composites AZL
Source:

Institut für Textiltechnik of RWTH Aachen University

(c) KLULE/Unsplash
Faserverbundkunststoffe bieten Designfreiheit und außergewöhnliche mechanische Eigenschaften für Möbelanwendungen
22.10.2018

Composites eröffnen neue Horizonte für die Möbelindustrie

Wie sieht der Möbelmarkt aus und welches Potential bieten Faserverbundkunststoffe für die Möbel von heute und morgen? Dieser Frage geht das AZL zusammen mit Firmen der Composite- und Möbelindustrie nach. Ergebnis wird ein Überblick über den aktuellen Markt und die bisher einsetzten Materialien sein sowie ein Ausblick auf zukünftige Massenanwendungen für Faserverbundkunststoffe (FVK). Die Studie ist offen für interessierte Firmen und startet mit einem Kick-Off-Meeting auf der Composites Europe in Stuttgart am 07. November 2018.

Möbel, ihr Design und Funktion haben sich in den letzten Jahrzehnten stark gewandelt: Vom massiven, lebensbegleitenden Möbelstück zum Trendgegenstand, vom handgefertigten Einzelstück zum Massenprodukt, vom Aufbewahrungsgegenstand zum smarten Alleskönner. Damit einher geht eine gesteigerte Vielfalt bezüglich des Designs und der verwendeten Materialen – und ein großes Potential für Composites, die zusätzliche Gestaltungsfreiheit und außergewöhnliche mechanische Eigenschaften bei geringem Gewicht bieten.

Wie sieht der Möbelmarkt aus und welches Potential bieten Faserverbundkunststoffe für die Möbel von heute und morgen? Dieser Frage geht das AZL zusammen mit Firmen der Composite- und Möbelindustrie nach. Ergebnis wird ein Überblick über den aktuellen Markt und die bisher einsetzten Materialien sein sowie ein Ausblick auf zukünftige Massenanwendungen für Faserverbundkunststoffe (FVK). Die Studie ist offen für interessierte Firmen und startet mit einem Kick-Off-Meeting auf der Composites Europe in Stuttgart am 07. November 2018.

Möbel, ihr Design und Funktion haben sich in den letzten Jahrzehnten stark gewandelt: Vom massiven, lebensbegleitenden Möbelstück zum Trendgegenstand, vom handgefertigten Einzelstück zum Massenprodukt, vom Aufbewahrungsgegenstand zum smarten Alleskönner. Damit einher geht eine gesteigerte Vielfalt bezüglich des Designs und der verwendeten Materialen – und ein großes Potential für Composites, die zusätzliche Gestaltungsfreiheit und außergewöhnliche mechanische Eigenschaften bei geringem Gewicht bieten.

Studie bietet Überblick über Möbelmarkt und Alleinstellungsmerkmale von Composites
Um das Potential von Faserverbundkunststoffen systematisch zu identifizieren und diese gezielt und vermehrt in zukünftigen Möbelanwendungen einzusetzen, startet das AZL zusammen mit Firmen der Möbel- und Composite-Industrie eine Studie. Innerhalb von viereinhalb Monaten wird der Markt für Möbel segmentiert, Design- und Technologietrends herausgearbeitet und die technischen Anforderungen für Möbel und Möbelbauteile aufgeschlüsselt, um Anwendungen mit hohem Potential für Composites zu identifizieren. Übergeordnetes Ziel ist es, den Auswahlprozess und Bedarf des Möbeldesigners so zu verstehen, dass Composites gezielt als Alternative zu konventionellen Materialen in den Markt gebracht werden.

Virginia Bozsak, Technical Manager Composites bei ARKEMA Innovative Chemistry beteiligt sich an der startenden Studie: „Steigende Bevölkerungszahlen machen den Einsatz umweltfreundlicher Materialien unumgänglich und fordern Lösungen für die Wiederverwertung von Materialien. Zusätzlich müssen diese Materialien besondere Gestaltungsfreiheit ermöglichen, wenn sie in den schnell wandelnden Märkten, wie dem Möbelmarkt eingesetzt werden sollen. Arkema beantwortet diesen Bedarf bereits mit niedrigviskosem thermoplastischem Harz Elium®, das wie Duroplaste verarbeitet werden kann, um strukturelle und ästhetische Composite-Bauteile herzustellen. Mit der gemeinsamen Studie möchten wir für unser Material spezielle Anwendungen im Möbelmarkt identifizieren, um Kreativität und Designmöglichkeiten zu unterstützen und die Zukunft zu revolutionieren.“

Dissertation and Creativity Award of the German Textile Machinery Foundation 2018 to go to Aachen (c) VDMA. Eric Otto, Susanne Fischer, Dr. Benjamin Weise, Peter D. Dornier (Chairman Walter Reiners-Stiftung), Alon Tal, Jan Merlin Abram (left to right)
01.10.2018

Dissertation and Creativity Award of the German Textile Machinery Foundation 2018 to go to Aachen

The Mechanical Engineering Industry Association (VDMA) has awarded two prizes to graduates of the Institut für Textiltechnik (ITA) of RWTH Aachen University - the dissertation prize and the creativity prize of the Walter Reiners Foundation of German Textile Machinery 2018. ITA alumnus Dr Benjamin Weise was awarded the dissertation prize for the development of novel fibres for textile charge storage devices. For their work on a guide to 4D product design, Jan Merlin Abram and Aalon Tal (both ITA students) were honoured with the creativity prize. The dissertation prize is endowed with €5,000 whilst the creativity prize contains a one-year scholarship of €250 per month. Peter D. Dornier, President of the Walter Reiners Foundation and Chairman of the Management Board of Lindauer DORNIER, presented the awards on the 18 September 2018 at the 18th Textile Machinery Forum in the Digital Capability Center in Aachen, Germany.

Graphene revolutionizes all-in-one - supercaps, reduction of terahertz radiation and antistatics

The Mechanical Engineering Industry Association (VDMA) has awarded two prizes to graduates of the Institut für Textiltechnik (ITA) of RWTH Aachen University - the dissertation prize and the creativity prize of the Walter Reiners Foundation of German Textile Machinery 2018. ITA alumnus Dr Benjamin Weise was awarded the dissertation prize for the development of novel fibres for textile charge storage devices. For their work on a guide to 4D product design, Jan Merlin Abram and Aalon Tal (both ITA students) were honoured with the creativity prize. The dissertation prize is endowed with €5,000 whilst the creativity prize contains a one-year scholarship of €250 per month. Peter D. Dornier, President of the Walter Reiners Foundation and Chairman of the Management Board of Lindauer DORNIER, presented the awards on the 18 September 2018 at the 18th Textile Machinery Forum in the Digital Capability Center in Aachen, Germany.

Graphene revolutionizes all-in-one - supercaps, reduction of terahertz radiation and antistatics

In his dissertation "Development of graphene-modified multifilament yarns for the production of textile charge storage devices", laureate Dr Benjamin Weise developed novel fibres made of polyamide and graphene and further processed them into textile surfaces. The newly developed polyamide graphene fibres are featuring a multitude of advantages:

  • Due to their high performance in the charge storage area, they are predestined for use in double-layer capacitors, so-called super capacitors, or supercaps in short. Compared to lithium-ion batteries, supercaps offer significantly higher power density and a longer lifetime as no chemical reactions are taking place. towing to the graphene platelets in the filaments, it is now possible for the first time to integrate a charge storage device directly into a textile without having to sew in a rechargeable battery. This new fibre is therefore suitable for prospective use in smart textiles, for instance in a textile defibrillator.
  • The new graphene-modified polyamide fibres can attenuate inident terahertz radiation up to 25 % of their original intensity. Terahertz radiation, for example, offers transmission rates of 100 Mbit/sec and is therefore of high interest for high-performance wireless communication. However, the radiation could damage sensible electronics as in aircrafts if this technology will be used widespread. Consequently, the shielding of the radiation is of high importance, e.g. in the form of fibre composite components in the aircraft, which protect the on-board electronics.
  • As the fibres are showcasing a dissipative electrical conductivity, personal protective equipment is another prospective field of application.  

The development of a pilot process for graphene-modified fibres and the production of textile demonstrators are novel and disruptive attainments of Dr Weise’s PhD thesis and the reason for the award ceremony to him. Due to its outstanding properties, the European Union is funding research on graphene within the frame of the "Graphene Flagship" with an overall budget of one billion Euro (source: http://graphene-flagship.eu/project/Pages/About-Graphene-Flagship.aspx).

Modular product design of 4D products is now possible in simplified form

How can three-dimensional products change their shape over time and thus become "four-dimensional"? The students Jan Merlin Abram and Aalon Tal provide answers to this question in their project work "Leitfaden zur Auslegung hybrider morphender Textilien am Beispiel eines Scharniers" (Guidelines for the Design of Hybrid Morphing Textiles Using the Example of a Hinge), for which they were awarded the creativity prize. In their work, the students offer a guideline for the development of a four-dimensional textile from the idea to the demonstrator. Four-dimensional textiles, for example, consist of a hybrid material of elastic textile on which three-dimensional structures are printed. The fourth dimension describes the change in shape and/or a property over a defined period of time (= morphing).  This change is caused by external influences such as light and heat.

Every year, the Foundation of the German Textile Machinery awards prizes for the best dissertation, diploma or master's thesis and the creativity prize for the smartest student research project. Further prizes were awarded to Eric Otto, ITM Dresden, and Susanne Fischer, Reutlingen University.

Source:

Institut für Textiltechnik of RWTH Aachen University

ITA

03.09.2018

New ENGEL Injection Molding System at AZL of RWTH Aachen University

The Aachen Center for Integrative Lightweight Production (AZL) of RWTH Aachen University is installing a new ENGEL injection molding system in its technical center. Engel Deutschland GmbH – in cooperation with the ENGEL Centre for Lightweight Composite Technologies in Austria – will install the 2-component injection molding system with turning plate and 17,000 kN clamping force in 2019. This machine setup is the basis for further developments of efficient inline-combination technologies using different kinds of polymer performance materials.

The ENGEL injection molding system will enable innovative combinations of already established fiber-reinforced plastics (FRP) processes and the development of new individual processes. The focus is on increasing resource efficiency in lightweight production. With the new equipment, new research and development initiatives can explore the more efficient use of materials, which are eventually the key to the mass production of lightweight components. The research will address multi-material systems, continuous processes, process chains as well as self-optimizing processes.

The Aachen Center for Integrative Lightweight Production (AZL) of RWTH Aachen University is installing a new ENGEL injection molding system in its technical center. Engel Deutschland GmbH – in cooperation with the ENGEL Centre for Lightweight Composite Technologies in Austria – will install the 2-component injection molding system with turning plate and 17,000 kN clamping force in 2019. This machine setup is the basis for further developments of efficient inline-combination technologies using different kinds of polymer performance materials.

The ENGEL injection molding system will enable innovative combinations of already established fiber-reinforced plastics (FRP) processes and the development of new individual processes. The focus is on increasing resource efficiency in lightweight production. With the new equipment, new research and development initiatives can explore the more efficient use of materials, which are eventually the key to the mass production of lightweight components. The research will address multi-material systems, continuous processes, process chains as well as self-optimizing processes.

Dr.-Ing. Michael Emonts, Managing Director of the Aachen Center for Integrative Lightweight Production (AZL) is looking forward to realizing new innovative lightweight production process with the new injection molding system: “This new injection molding system offers us as specialists for lightweight production technology in cooperation with the injection molding experts of the Institute of Plastics Processing – the IKV – the opportunity to establish hybrid processes for industrial lightweight applications. The system will expand our existing machinery in the AZL Technical Center and will be available as an important platform for lightweight production research at RWTH Aachen University.”

Being a Partner of the AZL, ENGEL has already been working closely with the AZL for many years as a Partner Company of the AZL Partner Network. Dr. Stefan Engleder, CEO of the ENGEL Group, emphasizes the importance of close collaboration with technical universities and especially with the AZL: “The AZL provides great conditions for industry-related research activities in the field of lightweight composites as it is characterized by a strong interdisciplinary approach. It benefits from the great infrastructure and the collaboration with well-known institutes of the RTWH Aachen University. ENGEL is looking forward to working together with the AZL on developing efficient lightweight composite mass production processes.”

In addition to the numerous composite and lightweight equipment at the RWTH Aachen Campus, the AZL Technical Center comprises large-scale equipment for the development of processes for lightweight production, such as a composite press from Schuler Pressen GmbH with 18,000 kN clamping force.

 

(c) ENGEL AUSTRIA GmbH: (l. to r.) Dr. Norbert Müller (Leiter des ENGEL Technologiezentrums für Leichtbau-Composites), Dr. Michael Emonts (Geschäftsführer des Aachener Zentrums für integrativen Leichtbau (AZL) der RWTH Aachen), Rolf Saß (Geschäftsführer der ENGEL Deutschland GmbH) und Dr. Christoph Steger (Geschäftsführer Vertrieb der ENGEL Holding).
03.09.2018

ENGEL installiert neues Spritzgießsystem im AZL der RWTH Aachen

Das Aachener Zentrum für Integrative Leichtbau (AZL) der RWTH Aachen installiert in seinem Technikum eine neue ENGEL-Spritzgießanlage. Die ENGEL Deutschland GmbH, in Kooperation mit dem ENGEL Technologiezentrum für Leichtbau-Composites in Österreich, wird das 2-Komponenten-Spritzgieß-System mit Drehtisch und 17.000 kN Schließkraft im Jahr 2019 in Betrieb nehmen. Dieser Maschinenaufbau ist die Basis für die Weiterentwicklung effizienter Inline-Kombinations-Technologien mit unterschiedlichen Polymerwerkstoffen.

Das ENGEL-Spritzgießsystem ermöglicht die innovative Kombination bereits etablierter Faserverbundkunststoff-Verfahren und die Entwicklung neuer individueller Verfahren. Im Mittelpunkt steht die Steigerung der Ressourceneffizienz in der Leichtbau-Produktion. Mit der neuen Anlage können neue Forschungs- und Entwicklungsinitiativen einen effizienteren Materialeinsatz adressieren, der letztlich der Schlüssel zur Massenproduktion von Leichtbauteilen ist. Der Fokus wird dabei auf Multimaterialsystemen, kontinuierlichen Prozessen und Prozessketten sowie selbstoptimierenden Prozesse liegen.

Das Aachener Zentrum für Integrative Leichtbau (AZL) der RWTH Aachen installiert in seinem Technikum eine neue ENGEL-Spritzgießanlage. Die ENGEL Deutschland GmbH, in Kooperation mit dem ENGEL Technologiezentrum für Leichtbau-Composites in Österreich, wird das 2-Komponenten-Spritzgieß-System mit Drehtisch und 17.000 kN Schließkraft im Jahr 2019 in Betrieb nehmen. Dieser Maschinenaufbau ist die Basis für die Weiterentwicklung effizienter Inline-Kombinations-Technologien mit unterschiedlichen Polymerwerkstoffen.

Das ENGEL-Spritzgießsystem ermöglicht die innovative Kombination bereits etablierter Faserverbundkunststoff-Verfahren und die Entwicklung neuer individueller Verfahren. Im Mittelpunkt steht die Steigerung der Ressourceneffizienz in der Leichtbau-Produktion. Mit der neuen Anlage können neue Forschungs- und Entwicklungsinitiativen einen effizienteren Materialeinsatz adressieren, der letztlich der Schlüssel zur Massenproduktion von Leichtbauteilen ist. Der Fokus wird dabei auf Multimaterialsystemen, kontinuierlichen Prozessen und Prozessketten sowie selbstoptimierenden Prozesse liegen.

Dr.-Ing. Michael Emonts, Geschäftsführer des Aachener Zentrums für integrativen Leichtbau (AZL) freut sich darauf, mit dem neuen Spritzgießsystem neue innovative Leichtbauverfahren zu realisieren: „Diese neue Spritzgießanlage bietet uns als Spezialisten für die Leichtbau-Produktionstechnik in Kooperation mit den Spritzgießexperten des Instituts für Kunststoffverarbeitung – dem IKV – die Möglichkeit, Hybridverfahren für industrielle Leichtbau-Anwendungen zu etablieren. Das System wird unseren bestehenden Maschinenpark im AZL-Technikum erweitern und als wichtige Plattform für die Leichtbau-Forschung an der RWTH zur Verfügung stehen."

Als aktive Partnerfirma des AZL-Partnernetzwerks arbeitet ENGEL bereits seit vielen Jahren eng mit dem AZL zusammen. Dr. Stefan Engleder, CEO der ENGEL-Gruppe, betont die Bedeutung dieser engen Zusammenarbeit mit den Technischen Universitäten und insbesondere mit dem AZL: „Das AZL bietet beste Voraussetzungen für industrienahe Forschungsaktivitäten im Bereich Leichtbau-Verbundwerkstoffe, da es sich durch einen starken interdisziplinären Ansatz auszeichnet. Das AZL profitiert von der guten Infrastruktur und der Zusammenarbeit mit namhaften Instituten der RTWH Aachen. ENGEL freut sich auf die Zusammenarbeit mit dem AZL bei der Entwicklung effizienter Leichtbau-Verbundwerkstoff-Massenproduktionsverfahren.“

Das AZL-Technikum umfasst neben den zahlreichen Faserverbund- und Leichtbauanlagen auf dem Campus der RWTH Aachen zusätzliches Großserien-Equipment für die Entwicklung von Verfahren zur Leichtbau-Produktion, wie zum Beispiel eine Composite-Presse der Schuler Pressen GmbH mit 18.000 kN Schließkraft.

More information:
AZL
Source:

AZL Aachen GmbH

Aachen Central Bus Station before the introduction of green.fACade (c) Institut für Textiltechnik
Aachen Central Bus Station before the introduction of green.fACade
03.08.2018

Aachen textile facade reduces nitrogen oxide pollution and urban heat

Aachen researchers have developed the adaptive textile facade green.fACade, which was presented on 2nd August 2018 in the Aachen Faculty of Architecture of RWTH Aachen University, Germany. green.fACade is installed in front of a building like a second skin and can permanently reduce nitrogen oxide pollution in cities.

The researchers achieve the reduction of harmful nitrogen oxides (NO and NO2) by coating the facade with titanium dioxide. Titanium dioxide acts as a photo catalyst and enables the oxidation of nitrogen oxides to form washable nitrate (NO3-). Since the facade is also greened, it contributes to the conversion of carbon dioxide into oxygen by photosynthesis. In addition, a green facade creates an optical resting point in the cityscape and reduces urban heat through evaporation cooling. The enclosed pictures demonstrate how the introduction of green.fACade can have an effect. Picture 1 shows the Aachen Central Bus Station after, picture 2 before the possible introduction of green.fACade.

Aachen researchers have developed the adaptive textile facade green.fACade, which was presented on 2nd August 2018 in the Aachen Faculty of Architecture of RWTH Aachen University, Germany. green.fACade is installed in front of a building like a second skin and can permanently reduce nitrogen oxide pollution in cities.

The researchers achieve the reduction of harmful nitrogen oxides (NO and NO2) by coating the facade with titanium dioxide. Titanium dioxide acts as a photo catalyst and enables the oxidation of nitrogen oxides to form washable nitrate (NO3-). Since the facade is also greened, it contributes to the conversion of carbon dioxide into oxygen by photosynthesis. In addition, a green facade creates an optical resting point in the cityscape and reduces urban heat through evaporation cooling. The enclosed pictures demonstrate how the introduction of green.fACade can have an effect. Picture 1 shows the Aachen Central Bus Station after, picture 2 before the possible introduction of green.fACade.

green.fACade is part of the innovative research project "adaptive textile facades", which uses the special properties of textiles. Thanks to its design, textiles can let sunlight and air through, thus contributing to a modern, aesthetic building design. A new feature of the research project is that further elements such as the titanium oxide coating or sun protection elements are integrated into the textile facade and placed in front of the existing building facade. The adaptive textile facade acts independently and thus reduces energy consumption through the positive climatic effects on the building facade.

"Adaptive Textile Facade" is part of a current research series with the aim of developing innovative facade constructions that are climate-neutral and increase the comfort of local residents. The research team consists of the three RWTH fields of architecture (Faculty of Architecture, PhD student architect M.Sc. Jan Serode), medicine (University Hospital RWTH Aachen, Clinic for Ophthalmology, Prof. Dr Walter) and textile technology (Institut für Textiltechnik, Prof. Dr Gries) and was able to contribute its expertise in the best possible way.

This summer the research team was supported for the first time by the Munich architectural office Auer Weber, represented by managing director Philipp Auer: "For us architects, developments in the field of textile outer shells are a special challenge. Here, highly developed textile materials and processing methods are combined with the lightness and grace of fabrics. Adaptive textile facade elements will increasingly turn the "building shell" into a "building skin", a system that not only offers weather, heat and sun protection, but is in constant intelligent exchange with its environment".

The great importance of these topics for the public was documented by the presence of Kirsten Roßels, representative of the Department of Economics, Science and Europe of the city of Aachen.  Ms Roßels explains: "As the city of Aachen, we are delighted with the innovative and future-oriented project ideas that are being developed at Aachen University, such as the adaptive textile facade. These developments underline the importance of Aachen as a city of science and I would appreciate it if these and other technologies could also become visible in Aachen in the future".

Prof. Dr Gries from the Institut für Textiltechnik sums up: "As textile researchers, we see a great opportunity to develop concrete solutions for our urban living spaces together with renowned experts from other disciplines. I'm sure we can make the urban climate more pleasant and reduce pollution."

Source:

Institut für Textiltechnik (ITA) at RWTH Aachen University