SURFACE ACTIVATION OF HDPE FIBER AND THE INTERFACE OF PE FIBRE / EPOXY RESIN COMPOSITE
高密度聚乙烯纤维表面活化及其与环氧复合材料的界面

In this paper, the surfaces of HDPE fibre treated by chromic acid was investigated by meansof SEM and XPS. The results showed that the surface reactivity of acid-treated PE fibre changedsignificantly. Interfacial adhesion of PE fibre-reinforced epoxy resin composite detendned from short beamshear test was improved for acid treatment, which main reason was that covalent bond formed between oxygen-containing groups of PE fibre surface and epoxy groups of epoxy resin.