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Teijin develops new thermoplastic textile prepeg

02 Mar '16

2 min read

Toho Tenax Co. Ltd, the core company of the Teijin Group's carbon fibres and composites business, has developed a flame-retardant, high-modulus thermoplastic textile prepreg.

A prepreg is a carbon fibre sheet pre-impregnated with matrix resin.
The new textile version uses TENAX TPWF (Thermo Plastic Woven Fabric) as a base and achieves a high level impregnation with polyethersulfone resin, resulting in more than 55 per cent carbon fibre content. This delivers high flame retardancy and robust mechanical properties. It can be used to produce high performance carbon fibre reinforced thermoplastics (CFRTP) in 1 metre width rolls, according to a press release.

Currently, a typical carbon fibre reinforced plastic (CFRP) uses a thermoset resin such as epoxy, which requires a long processing time and high production costs. In parallel with this new prepreg, Toho Tenax also developed a rapid heat and cool press-moulding technology that can produce CFRTP in a four minute cycle time, significantly shortening the processing time and enabling high production volume. Toho Tenax is currently developing technology that will allow for an even shorter cycle time.

Furthermore, typical thermoset prepregs require refrigerated storage, but the use of thermoplastics in this new prepreg enables it to be stored long-term at room temperature.

The prepreg has UL94 V-0 capability and will be certified by June 2016. In addition, the thermoplastic resin allows this textile prepreg to be recycled into pellets for injection moulding.

Initially, Toho Tenax plans to use the new thermoplastics textile prepreg to develop CFRTP for consumer electronics, medical equipment, and sporting goods. Sample shipments will start in March 2016. Going forward, further applications will be developed for industrial equipment, aircraft and other promising areas.

Teijin Group is currently pursuing development of new CFRTP applications for mass production as part of the acceleration of its midstream-to-downstream business strategy. The new roll-formed thermoplastic textile prepreg is expected to deliver a wide variety of solutions across multiple industries, thanks to its capability to meet customer demand for high-tenacity, high-tensile strength high modulus, and high heat and shock resistance. (GK)

Fibre2fashion News Desk - India

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Teijin develops new thermoplastic textile prepeg

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