增韧聚苯硫醚的力学性能和破坏形态

MECHANICAL PROPERTIES AND FRACTURE MORPHOLOGIES OF POLYPHENYLENE SULFIDE TOUGHENED WITH HIGH PERFORMANCE THERMOPLASTICS

研究了高性能热塑性树脂双酚Ａ聚砜（ＰＳＦ）、酚酞型聚醚酮（ＰＥＫ－Ｃ）增韧聚苯硫醚（ＰＰＳ）的破坏韧性、破坏形态以及抗溶剂性能。ＰＳＦ和ＰＥＫ－Ｃ能提高ＰＰＳ的冲击强度和破坏韧性。不同共混方法由于形成不同形态的分散相粒子对增韧效果和抗溶剂性能有不同的影响。增韧体系的抗溶剂性能随热塑性树脂加入及其含量增加而降低。

The mechanical properites,fracture morphology,and solvent resistance of molded poly(phenylene sulfide)(PPS) and its blends toughened with polysulfone (PSF)and polyetherketone with cardo group(PEK-C) have been studied.Both PSF and PEK-C were found capable of improving the impact strength and fracture toughness.The formation of the different size and shape of PSF and PEK-C particles in different mixing method have different effect on the fracture toughness and solvent resistance.