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STFI: Lightweight construction innovations at JEC World in Paris (c) silbaerg GmbH and STFI (see information on image)
23.02.2024

STFI: Lightweight construction innovations at JEC World in Paris

At this year's JEC World, STFI will be presenting highlights from carbon fibre recycling as well as a new approach to hemp-based bast fibres, which have promising properties as reinforcement in lightweight construction.

Green Snowboard
At JEC World in Paris from 5 to 7 March 2024, STFI will be showcasing a snowboard from silbaerg GmbH with a patented anisotropic coupling effect made from hemp and recycled carbon fibres with bio-based epoxy resin. In addition to silbaerg and STFI, the partners Circular Saxony - the innovation cluster for the circular economy, FUSE Composite and bto-epoxy GmbH were also involved in the development of the board. The green snowboard was honoured with the JEC Innovation Award 2024 in the “Sport, Leisure and Recreation” category.

At this year's JEC World, STFI will be presenting highlights from carbon fibre recycling as well as a new approach to hemp-based bast fibres, which have promising properties as reinforcement in lightweight construction.

Green Snowboard
At JEC World in Paris from 5 to 7 March 2024, STFI will be showcasing a snowboard from silbaerg GmbH with a patented anisotropic coupling effect made from hemp and recycled carbon fibres with bio-based epoxy resin. In addition to silbaerg and STFI, the partners Circular Saxony - the innovation cluster for the circular economy, FUSE Composite and bto-epoxy GmbH were also involved in the development of the board. The green snowboard was honoured with the JEC Innovation Award 2024 in the “Sport, Leisure and Recreation” category.

VliesComp
The aim of the industrial partners Tenowo GmbH (Hof), Siemens AG (Erlangen), Invent GmbH (Braunschweig) and STFI united in the VliesComp project is to bring recycled materials back onto the market in various lightweight construction solutions. The application fields "Innovative e-machine concepts for the energy transition" and "Innovative e-machine concepts for e-mobility" were considered as examples. On display at JEC World in Paris will be a lightweight end shield for electric motors made from hybrid nonwovens - a mixture of thermoplastic fibre components and recycled reinforcing fibres - as well as nonwovens with 100% recycled reinforcing fibres. The end shield was ultimately manufactured with a 100% recycled fibre content. The tests showed that, compared to the variant made from primary carbon fibres using the RTM process, a 14% reduction in CO2 equivalent is possible with the same performance. The calculation for the use of the prepreg process using a bio-resin system shows a potential for reducing the CO2 equivalent by almost 70 %.

Bast fibre reinforcement
To increase stability in the plant stem, bast fibres form in the bark area, which support the stem but, in contrast to the rigid wood, are very flexible and allow slender, tall plants to move in the wind without breaking.A new process extracts the bast bark from hemp by peeling.The resulting characteristic values, such as tensile modulus of elasticity, breaking strength and elongation, are very promising in comparison with the continuous rovings made of flax available on the market.The material could be used as reinforcement in lightweight construction.At JEC World, STFI will be exhibiting reinforcing bars that have been processed into a knitted fabric using a pultrusion process based on bio-based reinforcing fibres made from hemp bast for mineral matrices.

Source:

Sächsische Textilforschungsinstitut e.V. (STFI)

(c) AVK - Industrievereinigung Verstärkte Kunststoffe e. V.
14.11.2023

Successful SMCCreate 2023 Design Conference in Prague

Successful SMCCreate 2023 Design Conference in Prague

With over 60 participants from Europe and the USA the second edition of the SMCCreate Design Conference took place from November 7th to 8th in Prague. The conference was jointly organized by the AVK – Federation of Reinforced Plastics and the European Alliance for SMC BMC, promoting the use of SMC and providing design tools to designers for applying these versatile materials.

During the SMCCreate 2023 conference topics covered the wide spectrum of the design with fiber composite/composite components in SMC and BMC technology, from conceptual design, development, and scale-up, with a special emphasis on recycling and sustainability solutions. 18 speakers from various European countries showed how they address important market trends and changing customer needs, and which solutions their companies offered in terms of materials, performance and much more.

Successful SMCCreate 2023 Design Conference in Prague

With over 60 participants from Europe and the USA the second edition of the SMCCreate Design Conference took place from November 7th to 8th in Prague. The conference was jointly organized by the AVK – Federation of Reinforced Plastics and the European Alliance for SMC BMC, promoting the use of SMC and providing design tools to designers for applying these versatile materials.

During the SMCCreate 2023 conference topics covered the wide spectrum of the design with fiber composite/composite components in SMC and BMC technology, from conceptual design, development, and scale-up, with a special emphasis on recycling and sustainability solutions. 18 speakers from various European countries showed how they address important market trends and changing customer needs, and which solutions their companies offered in terms of materials, performance and much more.

As an introduction, speakers - including CTC/Airbus and Teijin - presented different possible applications for SMC and BMC components, including aircraft interiors, bicycle boxes, and applications in e-mobility. The topic of sustainability was broadly covered, highlighting recycling solutions and experiences (Siemens, IDI, OC, AOC), the use of renewable raw materials, as well new LCA models developed by the SMC BMC Alliance (LCS),

Specifically for designers, the use of the SMC flow and curing modelling was presented (ESI, OC), SMC positioning vs. aluminium (Spartners). The second day concluded with contributions on process optimization options for component production, including speeches by Dieffenbacher, Netzsch and EBG.

Source:

AVK - Industrievereinigung Verstärkte Kunststoffe e. V.

(c) AZL. Comparison of battery casing in modular design and “cell-to-pack” design
Comparison of battery casing in modular design and “cell-to-pack” design
02.09.2022

AZL: Plastic-based multi-material solutions for cell-to-pack battery enclosures

The future of e-mobility will be determined in particular by safe battery enclosures. As batteries for electric vehicles become more performant, higher volumetric energy density plays a crucial role. If more energy is to be stored in less installation space, new material and design solutions are required. The development of suitable enclosures made of safe and highly robust lightweight materials is also required. This is a case for the Aachen Centre for Integrative Lightweight Production (AZL). A project on cell-to-pack battery enclosures for battery-electric vehicles, which has been eagerly awaited in the industry, will start in October this year there.

The future of e-mobility will be determined in particular by safe battery enclosures. As batteries for electric vehicles become more performant, higher volumetric energy density plays a crucial role. If more energy is to be stored in less installation space, new material and design solutions are required. The development of suitable enclosures made of safe and highly robust lightweight materials is also required. This is a case for the Aachen Centre for Integrative Lightweight Production (AZL). A project on cell-to-pack battery enclosures for battery-electric vehicles, which has been eagerly awaited in the industry, will start in October this year there.

The design of battery housings is crucial for safety, capacity, performance, and economics. The Cell-to-Pack project, which is starting now, will focus on developing concepts for structural components and for producing them based on a variety of materials and design approaches. The concepts will be compared in terms of performance, weight and production costs, creating new know-how for OEMs, producers and their suppliers throughout the battery vehicle value chain. Companies are now invited to participate in this new cross-industry project to develop battery enclosure concepts for the promising and trend-setting cell-to-pack technology.

The basis for the project is the lightweight engineering expertise of the AZL experts, which they have already demonstrated in previous projects for multi-material solutions for module-based battery housings. Together with 46 industry partners, including Audi, Asahi Kasei, Covestro, DSM, EconCore, Faurecia, Hutchinson, Johns Manville, Magna, Marelli and Teijin, 20 different multi-material concepts were optimized in terms of weight and cost and compared with a reference component made from aluminum. All production steps were modelled in detail to obtain reliable cost estimates for each variant. Result: depending on the concept, 20% weight or 36% cost savings potential could be identified by using multi-material composites compared to the established aluminum reference.

It is expected that the design concept of battery enclosures will develop in the direction of a more efficient layout. In this case, the cells are no longer combined in modules in additional production steps, but are integrated directly into the battery housing. The elimination of battery modules and the improved, weight-saving use of space will allow for higher packing density, reduced overall height and cost saving. In addition, various levels of structural integration of the battery housing into the body structure are expected. These new designs bring specific challenges, including ensuring protection of the battery cells from external damage and fire protection. In addition, different recyclability and repair requirements may significantly impact future designs. How the different material and structural options for future generations of battery enclosures for the cell-to-pack technology might look like and how they compare in terms of cost and environmental impact will be investigated in the new AZL project. In addition to the material and production concepts from the concept study for module-based battery enclosures, results from a currently ongoing benchmarking of different materials for the impact protection plate and a new method for determining mechanical properties during a fire test will also be incorporated.

The project will start on October 27, 2022 with a kick-off meeting of the consortium, interested companies can still apply for participation until then.

(c) Tom Schulze. “IQ Innovationspreis Mitteldeutschland“, overall winner (from left to right) FibreCoat GmbH from Aachen, ITA graduate Dr Robert Brüll, Deutsche Basalt Fiber GmbH from Sangerhausen, Georgi Gogoladze.
28.06.2021

Overall prize of the “IQ Innovationspreis Mitteldeutschland“ for FibreCoat GmbH and DBF Deutsche Basalt Faser GmbH

FibreCoat GmbH from Aachen, Germany, together with DBF Deutsche Basalt GmbH, developed a completely new type of fibre material to shield electromagnetic radiation from digital end devices, medical technology or e-car batteries cheaply and effectively. The joint project was awarded the overall prize of the“ IQ Innovationspreises Mitteldeutschland“ on 24 June in an online event broadcast live from Leipzig.

The prize is endowed with €15,000 and was sponsored by the Halle-Dessau, Leipzig and East Thuringia Chambers of Industry and Commerce.

FibreCoat GmbH from Aachen, Germany, together with DBF Deutsche Basalt GmbH, developed a completely new type of fibre material to shield electromagnetic radiation from digital end devices, medical technology or e-car batteries cheaply and effectively. The joint project was awarded the overall prize of the“ IQ Innovationspreises Mitteldeutschland“ on 24 June in an online event broadcast live from Leipzig.

The prize is endowed with €15,000 and was sponsored by the Halle-Dessau, Leipzig and East Thuringia Chambers of Industry and Commerce.

Electromagnetic radiation from smartphones, hospital diagnostics and electric car batteries must be shielded so that they do not inter-fere with each other. To prevent mutual interference, they have so far been covered with metal fibre fabrics, a very time- and energy-consuming and thus expensive procedure. The new material from Basalt Faser GmbH and FibreCoat GmbH prevents this with a fibre core made of melted, thinly drawn basalt, which is coated with aluminium and bundled into the so-called AluCoat yarn. This yarn remains just as conductive and shielding, but is lighter, stronger, cheaper and more sustainable than previous alternatives. In addition, there are further advantages:

  • The number of process steps required is reduced from ten to one.
  • 1,500 metres of yarn are produced per minute instead of the previous five metres.
  • The energy required is only 10 per cent of the previous amount.

The result is a price that is twenty times lower.

The textile made of AluCoat fibres is versatile and flexible: as wallpaper it can shield 5G radiation in offices or medical rooms or encase batteries and thus ensure the smooth functioning of electric cars. AluCoat is already being used in some companies. A European fibre centre in Sangerhausen is being planned for mass production.

The two innovative companies DBF Deutsche Basalt GmbH and FibreCoat GmbH from East and West combine the two materials basalt and aluminium to protect against electromagnetic radiation. In doing so, they coat basalt with aluminium and, through this novel combination, create an inexpensive, sustainable and quickly produced alter-native for a market worth billions.

FibreCoat GmbH from Aachen is a spin-off of the Institut für Textiltechnik (ITA) of RWTH Aachen University; the managing directors Dr Robert Brüll and Alexander Lüking and Richard Haas have completed their doctorates at the ITA or are in the process of preparing their doctorates. Georgi Gogoladze, Managing Director of Deutsche Basaltfaser GmbH, also studied at RWTH Aachen University. The two managing directors Brüll and Gogoladze know each other from their student days.

Source:

ITA – Institut für Textiltechnik of RWTH Aachen University