PBT/HDPE和PBT/HDPE-g-MAH共混体系形态和性能研究  

STUDY ON MORPHOLOGY AND PROPERTIES OF PBT/HDPE AND PBT/HDPE-g-MAH BLENDS

作　　者：聂景辉[1] 戚嵘嵘[1] 蒋锂[1] 周持兴[1] 茅大联[2] 张边[2] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]南通星辰合成材料有限公司,南通226006

出　　处：《工程塑料应用》2004年第10期9-12,共4页Engineering Plastics Application

基　　金：国家自然科学基金(50390095)

摘　　要：通过熔融共混制备了聚对苯二甲酸丁二酯/马来酸酐接枝高密度聚乙烯(PBT/HDPE-g-MAH)和PBT/HDPE共混物,研究了共混体系的力学性能、相形态、熔融结晶行为和加工性能。结果表明,单纯加入HDPE对PBT的增韧效果并不理想,而加入HDPE-g-MAH可以提高PBT的冲击强度;HDPE-g-MAH可以改善共混体系的相形态,提高共混体系的相容性,有利于共混物性能的提高。The PBT/HDPE-g-MAH and PBT/HDPE blends were prepared by using a co-rotating twin-screw extruder. The mechanical properties, morphology, melting and crystalline behavior, and rheological properties were studied. The results showed that the impact strength was improved with the addition of HDPE-g-MAH, while HDPE had little toughening effect on PBT. HDPE-g-MAH improved the morphology and compatibility of the blends, which was of benefit to increase the properties.

关 键 词：HDPE-G-MAH 共混体系 PBT 相形态 共混物 马来酸酐接枝 聚对苯二甲酸丁二酯 形态和 行为 效果 

分 类 号：TQ323[化学工程—合成树脂塑料工业] TQ325