EPDM/PP共混型热塑性弹性体增韧聚丙烯的研究  

STUDY ON THE POLYPROPYLENE TOUGHENED WITH BLENDED EPDM/PP THERMOPLASTIC ELASTOMER

作　　者：耿永胜[1] 周明义[2] 杨亚栩[2] 

机构地区：[1]山东省科学院新材料研究所 [2]北京化工大学

出　　处：《工程塑料应用》1995年第6期18-20,52,共4页Engineering Plastics Application

摘　　要：研究了EPDM/PP共混型热塑性弹性体对三种聚丙烯的增韧改性,使用较少的EPDM制得较高悬臂梁缺口冲击强度的增韧聚丙烯,材料的拉伸强度和弯曲弹性模量仍能满足使用要求。研究了TPR的交联密度对PP/TPR共混物塑化特性和流变性能的影响,表明所得共混物属于切敏型假塑性流体。The toughening and modifying of three types of polypropylene with blended EPDM/PP thermoplastic elastomer are investigated. Although less EPDM is used .toughened polypropylene is obtained which has higher notched Izod impact strength,and its tensile strength and flexural elastic modulus still meet the operating requirement. The influence of the crosslinking density of TPR on the plasticizing and rheological characteristics of the PP/TPR blend is also researched,and the result shows that the blend obtained is a kind of the pseudoplastic fluid with the property of notch sensitivity.

关 键 词：乙丙橡胶 增韧 聚丙烯 共混物 热塑性弹性体 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]