NetComposites
Attwater

Toho Tenax's New Prepreg Achieves Rapid Curing forIncreased Productivity

18 November 2014

Toho Tenax has developed a new prepreg, or carbon fibre sheet pre-impregnated with matrix resin, that achieves rapid curing for increased productivity and features excellent surface texture and formability.

According to Toho Tenax, the new prepreg cures in three minutes at 150 degree and minimises resin being expelled from the prepreg due to moulding pressure. The result is an increase in production efficiency by a factor of many dozens, which will allow the company to raise annual production capacity to 50,000 carbon fibre reinforced plastic (CFRP) sets.

Toho Tenax has developed its new prepreg initially for automotive applications, but will explore opportunities for aircraft and other fields to further expand its carbon fibres and composites business. Possible new fields include sports and general industry fields thanks to formability at low pressure of around 0.5Mpa. A flame-resistant feature now under development is expected to further expand applications to consumer electronics, vehicles and other general applications.

Prepregs are intermediate materials of thermoset CFRPs used mainly for aircraft and automotive applications. They generally are moulded by a curing process with pressure equipment called an autoclave. Prepregs are layered in the mould, covered by baggings, vacuumed and then pressurised at high temperature. Autoclaved CFRPs have high strength, but they require a long manufacturing cycle time and incur high production costs.






comments powered by Disqus

Related / You might like...

Battery-Powered Ferry Offers Sustainable Sightseeing

The sister ship of the renowned passenger ferry Vision of the Fjords takes sustainability one step further. A catamaran constructed from carbon fibre composite that runs entirely on batteries, Future of the Fjords will offer sightseeing with a minimum of environmental impact.

ACMA Champions Policies to Advance Composites in Infrastructure

At the American Composites Manufacturers Association (ACMA)'s third annual Infrastructure Day on 6-7 February 2018 34 ACMA members joined together to meet with over 100 Members of Congress and their staffs to advance legislation to drive investment in innovative material solutions for transportation, water and energy infrastructure.

Composite Sculpture Fronts Australian Shopping Centre

Shoppers visiting the newly redeveloped Halls Head Central Shopping Centre will be greeted by a 3.5 m x 2.5 m core composite spiral ribbon representing the logo of one of the centre's owners.