Evonik Industries (Essen, Germany) has developed and launched a novel combination of bio-based high-performance polyamides reinforced with bio-based high-performance rayon fibers.
Reinforcing fibers, particularly chopped glass fibers, are often mixed into engineering plastics to improve flexural strength, among other mechanical properties. But in the case of bio-based polymers this results in a lower bio-content, reducing the ecological advantage. The use of natural fibers, on the other hand, has to date resulted in significant deterioration of reinforcing performance, as well as an unpleasant odor in the end product according to Evonik. Vestamid Terra with rayon fibers, however, retains the high bio-content-along with excellent reinforcing potential.