EPR/PP共混物的制备及性能研究  

Study on preparation and performance of EPR/PP blends

作　　者：韩贤新 刘喜军[1] 王宇威[1] HAN Xian-xin;LIU Xi-jun;WANG Yu-wei(School of Materials Science and Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2021年第3期53-57,共5页Journal of Qiqihar University(Natural Science Edition)

基　　金：齐齐哈尔大学2019年研究生创新项目(YJSCX2019064)。

摘　　要：采用熔融共混法制备了二元乙丙橡胶/聚丙烯共混物,实验通过哈克转距流变仪将二元乙丙橡胶均匀分散在聚丙烯连续相中,并对共混物的力学性能、热稳定性、结晶行为、形态结构等进行了测试表征。结果表明,共混物呈现“海岛”型微观结构,分散相二元乙丙橡胶(岛)的形成使得共混物的韧性增强,但二元乙丙橡胶的引入致使聚丙烯的刚性受到一定损失。In this paper,a binary ethylene propylene rubber/polypropylene(EPR/PP)blend was prepared by a melt blending method.In the experiment,the EPR was uniformly dispersed in the continuous PP phase by the HAAKE.The mechanical properties,thermal stability,crystallization behavior,morphology and structure of the blends were tested and characterized.The results show that the blend presents a'sea-island'microstructure.The formation of the dispersed phase EPR(island)enhances the toughness of the blend,but the introduction of EPR causes the rigidity of PP to suffer a certain loss.

关 键 词：聚丙烯 二元乙丙橡胶 熔融共混 增韧 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]