MA-SEBS对聚丙烯/滑石粉复合材料的增容作用  

Compatibilizing Effect of MA-SEBS on Morphology and Properties of Polypropylene/Talc Composites

作　　者：黄乐平[1] 周兴平[1] 解孝林[1] 

机构地区：[1]华中科技大学化学与化工学院湖北省材料化学与服役失效重点实验室,湖北武汉430074

出　　处：《塑料工业》2009年第4期25-28,34,共5页China Plastics Industry

基　　金：国家自然科学基金资助项目(50573026);教育部新世纪优秀人才计划(NCEF-05-0640)资助

摘　　要：利用马来酸酐接枝的氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物(MA-SEBS)作增容剂,采用熔融共混和注塑成型的方法制备了聚丙烯/滑石粉(PP/Talc)复合材料;研究了MA-SEBS对PP/Talc复合材料的断面形貌、热行为和力学性能的影响。结果表明:添加MA-SEBS提高了PP/Talc复合材料中PP相的熔点,降低了PP的结晶温度、结晶速率和结晶度。MA-SEBS增强了Talc与PP的界面黏附性,使Talc在加工过程中更易于剥离。MA-SEBS的存在提高了PP/Talc复合材料的韧性。With maleic anhydride grafted styrene-ethylene/butylene-styrene （MA-SEBS） as compatibilizer, composites based on polypropylene （PP） and talc were prepared via melt mixing and injection molding. The effects of MA-SEBS on morphology, thermal behavior and mechanical properties of the PP/Talc composites were systematically investigated. The results showed that the addition of MA-SEBS increased the melting temperature （ Tm） of PP phase in the composite, but decreased its crystallization temperature （ Tc） , crystallization rate and the degree of crystallinity. MA-SEBS as compatibilizer enhanced the interfacial adhesion between Talc and PP matrix, .which benifited the exfoliation of talc layers during processing PP/Talc composites. At the same time, MA-SEBS improved the Izod impact strength of PP/Tale composites obviously.

关 键 词：马来酸酐接枝的氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物 聚丙烯/滑石粉复合材料 热行为 力学性能 增容作用 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]