PP-g-(GMA-co-St)增容PC/PP共混体系的形态与性能  

Morphology and Properties of PC/PP-g-(GMA-co-St)/PP Blends

作　　者：李昱[1] 尹波[1] 兰杰[1] 李澜鹏[1] 杨鸣波[1] 

机构地区：[1]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《高分子材料科学与工程》2010年第4期55-58,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金面上项目(20874066)

摘　　要：运用分级注入方法制备了不同配比的PC/PP-g-(GMA-co-St)/PP共混物。通过力学性能测试、扫描电子显微镜观察、高压毛细管流变测试等方法考察了增容剂PP-g-(GMA-co-St)对PC/PP共混体系的形态与性能的影响。PP-g-(GMA-co-St)的加入提高了两相界面结合力,降低了分散相粒子尺寸,有效地改善了共混体系的相容性;同时PC/PP-g-(GMA-co-St)/PP体系的拉伸性能得到显著的提高,体系表观黏度提高,对剪切应力的敏感性降低。PP/PP-g-（GMA-co-St）/PC blends with different compositions were prepared by lateral-stage injection processing method,and the effects of polypropylene-g-（glycidyl methacrylate-co-styrene） （PP-g-（GMA-co-St）） compatiblizer on the morphology and properties of PC/PP blends were studied by mechanical property test,scanning electron microscope （SEM）. With the addition of PP-g-（GMA-co-St）,the interface interaction between PP and PC improved,the tensile strengths were dramatically enhanced by adding PP-g-（GMA-co-St）,which indicated that the compatibility of PC/PP blends was significantly improved. The increased interface interactions between PC and PP resulted in enhanced apparent viscosity and decreased sensitivity to the shear flow as well.

关 键 词：聚丙烯 聚碳酸酯 甲基丙烯酸缩水甘油酯 分级注入 反应增容 

分 类 号：TQ314.245.9[化学工程—高聚物工业]