Composites Evolution develops hybrid tooling prepregs
Appears in Print as: 'Hybrid fiber prepregs target tooling applications'
Composites Evolution has developed a new tooling prepreg system based on a hybrid combination of carbon fiber and flax fiber reinforcements.
Composites Evolution Ltd. (Chesterfield, UK), in collaboration with with molder KS Composites (Melton Mowbray, UK), has developed a new tooling prepreg system based on a hybrid combination of carbon fiber and flax fiber reinforcements, aimed at reducing the cost of carbon fiber tools. In the new hybrid tooling system, several of the carbon bulking plies are replaced with flax fiber. Composites Evolution says this is possible because the thermal expansion properties of flax fibers are sufficiently similar to those of carbon fibers. The result, says the company, is a hybrid carbon fiber/flax fiber tool in which the material costs are reduced by up to 15% compared to an all-carbon fiber tool. Secondary benefits include a reduction in tool weight of up to 15% and reduced environmental impact from the use of sustainable flax. In trials performed by KS Composites, a hybrid carbon fiber/flax fiber tool has successfully completed more 400 thermal cycles. A mold manufactured with the material is now used in production.
The 3rd annual joint ACMA/SAMPE-sponsored trade event comes to Anaheim with an exhibition and conference program attractive to professionals across the composites world.
JEC World will be held March 14-16 in Paris. CW previews some of the products and technologies that will be at the show.
No longer dependent only on their green credentials, some suppliers of bio-based fibers and resins are competing on price and performance.