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13th February 2018, Paris

DSM showcases composite innovations

Dyneema can bring its lightweight strength to products like golf clubs and field hockey sticks, as well as racing bike frames and body and chassis of racing cars. © Royal DSMRoyal DSM, a science-based company active in health, nutrition, and materials, will demonstrate its composite innovations and share its knowledge of high-performance composites at JEC World 2018, in Paris next month. The innovations include carbon with Dyneema and Dyneema flexible composites, along with a range of thermoplastic unidirectional (UD) tapes and materials for additive manufacturing.

The manufacturer of the ultrahigh-molecular-weight polyethylene (UHMwPE) fibre branded as Dyneema has found a way to leverage the fibre’s properties in different end uses by combining it with carbon. “Combining Dyneema with carbon fibre and a thermoset resin yields a hybrid composite called carbon with Dyneema. The resulting material significantly improves the performance of pure carbon composites in terms of ductility, vibrational dampening and weight reduction. For example, it can increase impact energy absorption by up to 100% while removing the risk of splintering,” the company reports.

As part of a hybrid composite, Dyneema can bring its lightweight strength to products like golf clubs and field hockey sticks, as well as racing bike frames and body and chassis of racing cars. DSM recently signed a technology partnership agreement with Toyota Motorsport GmbH (TMG) and will display the Toyota WEC racing car on its booth at the JEC World.

Flexible composites

“At the other end of the spectrum, Dyneema flexible composites are taking strength and durability to new heights,” the company says. “These fabrics dramatically increase tear, puncture and abrasion performance compared to other fibres used in the textiles world, while also cutting weight and reducing bulk.”

Several developments for industrial applications, such as inflatables, are ongoing, and these fabrics are becoming increasingly popular in high-performance sports apparel and athletic sportswear, such as outdoor jackets (superlight: less than 80 grams total), and compact, waterproof roll-top backpacks and tents. These materials can be tailored and optimised for strength, stretch and weight, for the overall thickness, as well as for specific points, or even along predetermined load paths.

Thermoplastic UD tape

Also at JEC World, DSM will display its latest advances in unidirectional, continuous fibre-reinforced, thermoplastic tapes, products that help the automobile industry to address its growing need for lightweight design.

DSM’s polyamide-based UD tapes with carbon or glass fibre longitudinal reinforcement have been developed as a viable, lightweight alternative to metal in several applications. UD tapes and tape-based sheets support structural and semi-structural components, as well as injection moulded parts with localised UD tape reinforcement. Such tapes have fibre contents up to 65% by weight and widths from 6 to 800 mm.

Additive manufacturing

DSM also offers a broad series of products in its material portfolio for use in additive manufacturing. DSM is building on existing strengths in stereolithography (SLA) and digital light processing (DLP) platforms through the Somos business. Through innovation efforts supported by technology partnerships and industry collaboration, DSM has been able to extend development to fused filament fabrication (FFF/FDM) products like Arnitel and Novamid.

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