聚碳酸酯／聚丙烯共混物的结构与性能  

Morphologies and Mechanical Progenies of polycarbonate/polypropylene Blend

作　　者：尹志辉[1] 张亚杰[1] 张晓民[1] 殷敬华[1] 

机构地区：[1]中国科学院长春应用化学研究所高分子物理开放实验室,吉林工业大学应用化学系

出　　处：《中国塑料》1996年第4期20-25,共6页China Plastics

摘　　要：在过氧化二异丙苯的引发下，用反应挤出的方法制备了聚丙烯接枝甲基丙烯酸环氧丙酯（ＰＰ－ｇ－ＧＭＡ）。用双螺杆挤出机制备了不同组成的聚碳酸酯（ＰＣ）／聚丙烯（ＰＰ）及ＰＣ／ＰＰ－ｇ－ＧＭＡ／ＰＰ的共混物。用电子显微镜观察了不同共混组成的形态，与ＰＰ／ＰＣ共混体系相比，ＰＣ／ＰＰ／ＰＰ－ｇ－ＧＭＡ体系中的ＰＣ在ＰＰ中分散相尺寸明显降低，ＰＰ－ｇ－ＧＭＡ的加入改变了聚丙烯在共混物中的晶体结构及提高了聚丙烯的结晶温度，同时Ｐｅ－ｇ－ＧＭＡ的加入对共混体系的力学机械性能也有明显改善。This work deals with the effect of compatibilizer on tile morphology,thermal and mechanical properties of polycarbonate/ploy propylene (PC/PP) Bleeds.The compatibilizer were prepared by grafting glycidyl methacrylate(GMA)onto PP in the molten state.Blend morphology was controlled by adding PP-g-GMA as a compatibilizer.With PP-g-CMA weight fractions increased from 2.5to 20wt%, much finer dispersions of discrete PC with average domain size decreasing from 40Urn to 3μm were obtained.The crystal structure of PP in binary blends was different from that of PP in ternary blends.The thermal and mechanical properties significantly changed after incorporation of PP-g-CMA

关 键 词：反应挤出 机械性能 聚碳酸酯 聚丙烯 共混物 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]