增容剂对橡胶增韧塑料的作用  

EFFECT OF COMPATIBILIZERS ON TOUGHENING OF PLASTICS WITH RUBBER

作　　者：高广华[1] 崔敏慧[1] 谢洪泉[1] 潘少波[1] 

机构地区：[1]华中理工大学化学系,湖北工学院化工系

出　　处：《合成橡胶工业》1994年第5期283-287,共5页China Synthetic Rubber Industry

摘　　要：研究了以两种含甲基丙烯酸主链的规整型接枝共聚物及顺丁烯二酸酐改性的聚丙烯作为增容剂，对聚甲醛（ＰＯＭ）／丙烯酸酯橡胶（ＡＣＲ）、聚苯乙烯（ＰＳ′）／丁苯吡橡胶（ＢＳＰＲ）和聚丙烯（ＰＰ）／ＡＣＲ共混物的增容效果。结果表明，增容剂用量各为２％（质量）时，共混物的力学性能均有较大的改善，ＰＯＭ／ＡＣＲ共混物的拉伸强度呈抵消效应；ＰＳ／ＢＳＰＲ值大于７８／２２（质量比）时，其拉伸强度呈协同效应；ＰＰ／ＡＣＲ值不小于９０／１０时，共混物的拉伸强度呈少量协同效应。扫描电镜表明，在增容剂存在下，分散相明显变小。Blends of polyoxymethylene with acrylic rubber, polystyrene with butadiene-styrenevinylpyridine rubber and polypropylene with acrylic rubber in the presence of polymethacrylic acid with polymethyl methacrylate grafts, polymethacrylic acid with polystyrene grafts and maleated polypropylene as compatibilizers respectively were studied.Mechanical properties of the blends were improved in the presence of about 2% compatibilizer. The impact strength of the plastics was raised by blending with rubber.Some blends showed synergistic effect with respect to tensile strength. SEM of the broken section of The blends indicated that the disperse phase of the blend became finer and more uniform in the presence of the compatibilizer.

关 键 词：增容剂 共混物 橡胶 增韧 塑料 

分 类 号：TQ327.9[化学工程—合成树脂塑料工业]