共混温度对CPE-cg-AS增韧SAN的影响  

Effect of Blending Temperature on Toughen SAN by CPE-cg-AS

作　　者：刘丽娟[1] 张书凯[1] 刘建凯[1] 赵季若[1] 冯莺[1] 

机构地区：[1]山东橡塑材料与工程重点实验室,青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《塑料》2015年第6期57-59,共3页Plastics

摘　　要：以氯化原位接枝反应制备PE氯化原位接枝苯乙烯、丙烯腈共聚物(CPE-cg-AS),并将其作为增韧剂增韧苯乙烯/丙烯腈共聚物(SAN)。重点讨论了共混温度对共混物形态结构及性能的影响,结果表明:CPE-cg-AS的熔体黏度始终高于CPE;熔体黏度相近,有利于分散相的分散;高温共混虽可降低聚合物黏度,有利于共混,但也促使交联结构的产生。因此,共混温度直接关系到体系熔体黏度的大小,对增韧剂的分散起非常重要的作用,是获得良好性能材料的关键因素。CPE-cg-AS（PE in-situ chlorinating graft copolymerization of styrene and acrylonitrile） was prepared by in-situ chlorinating graft copolymerization. And CPE-cg-AS was used to toughen SAN as toughening agent. Focused on the influence of blending temperature on the morphological structure and properties of the blends. The results showed that the melt viscosity of CPE-cg-AS was always higher than that of CPE. Melt viscosity similar was beneficial to disperse of the dispersed phase. High temperature could decrease the viscosity of polymer when blending and conducive to the blend, but also increase the cross- linked structure. Therefore, blending temperature was directly related to the melt viscosity of the system, and played an very important role in dispersion. So blending temperature was a key factor in obtaining good performance of the material.

关 键 词：氯化原位接枝 CPE-cg-AS 共混温度 黏度 相容性 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]