氯化乙丙橡胶增容PVC/SBS共混体系的研究  

STUDY ON COMPATIBILIZATION OF CHLORINATED ETHYLENE PROPYLENE RUBBER FOR PVC/SBS BLENDS

作　　者：陈绪煌[1] 徐声钧[1] 李纯清[1] 熊牮[2] 

机构地区：[1]湖北工学院化学工程系,武汉430068 [2]上海市高桥石油化工公司,201208

出　　处：《现代塑料加工应用》1998年第6期1-3,共3页Modern Plastics Processing and Applications

摘　　要：以氯化乙丙橡胶(CEPDM)为相容剂,研究了SBS对PVC的共混增韧改性。结果表明CEPDM能明显改善SBS与PVC的相容性,使共混物中SBS颗粒尺寸明显减小,分布更均匀,共混物的t_g内移,常温和低温下缺口冲击强度增大。当PVC/SBS/CEPDM为80/20/6(质量比)时,共混物的常温缺口冲击强度为56.3kJ/m^2,低温(-20℃)缺口冲击强度为32.4kJ/m^2。The toughened effect of SBS on PVC was by use of chlorinated ethylene propylene rubber(CEPDM)as the compatibilizer. The results show that CEPDM can improve the compatibility of PVC and SliS remarkably, and reduce the partical size of SBS in the blend , and distrubute it uniformly. tg of blends moves centrally, At atmospheric and low temperature the notch impact strength of blends is increased. When the ratio of PVC/SBS/ CEPDM is 80/20/6, the notch impact strength of blends is 56. 3kJ/m at atmospheric temperature,it is 32. 4kJ/ m2 at low temperature ( - 20℃) .

关 键 词：氯化乙丙橡胶 聚氯乙烯 SBS 热塑性弹性体 共混 

分 类 号：TQ334.9[化学工程—橡胶工业]