DIRECT FIBER FEEDING INJECTION MOLDING OF GLASS FIBER REINFORCED POLYOXYMETHYLENE/POLY (LACTIC ACID) BLEND COMPOSITES

摘要

In this study, the short glass fiber reinforced POM, PLA and POM/PLA blend composites were fabricated by a direct fiber feeding injection molding. The glass fiber contents were controlled by the matrix feeding speed. The mechanical properties were investigated by tensile testing method. It was found that the tensile modulus of all composition increased with increasing glass fiber content by the results of POM/PLA blend composites indicated the intermediate value between PLA and POM composites. Tensile strength of POM/PLA blend increased nearly the same with POM composite at low glass fiber content. The critical fiber length that was calculated by modified Kelly and Tyso