Processing Thermoplastic Composites

Abstract

The mechanisms governing intimate contact and bond formation at the ply interfaces of a thermoplastic composite during processing have been identified. The theory of autohesion is used toe xplain interfacial bond strength development during processing. A viscoelastic mechanics model simulating the compression of resin impregnaed tows was developed to explain the phenomenon by which the prepreg ply interfaces achieve intimate contact. Based on the resultst of this investiation it is clear that further work is needed to obtain a better understanding og the influence of fiber reinforcement on the resin viscosity. Also, the effect of the fiber reinforcement on the interfacial bond formation needs to be examined.