论文部分内容阅读
Mechanical properties of self-reinforced poly(ethylene terephthalate) (srPET) composites based on commingled yam fabrics were investigated.The commingled yarn fabrics were composed of conventional high tenacity poly(ethylene terephthalate) (PET) fibers (as reinforcement) and modified poly(ethylene terephthalate) (mPET) fibers (as matrix) braided together within the fiber bundles.The melting temperature of mPET fiber is 29℃ lower than that of the reinforced PET fiber.Three kinds of yarn architectures were prepared to study their effects on void content and fiber impregnation.Tensile, flexural and Izod impact properties of laminates made by compression molding of commingled yams were evaluated and compared with those of laminates prepared by film stacking.