文献类型：期刊文献

中文题名：硬质PVC/ACR共混体系的增韧机理研究

英文题名：Study of Toughening Mechanism on PVC / ACR Blending System

作者：李远[1];唐颂超[2];张德震[2];施英德[1]

机构：[1]华东理工大学石油化工学院;[2]华东理工大学材料工程学院,上海201512

年份：2001

卷号：14

期号：2

起止页码：199

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：聚氯乙烯;形态;结构;丙烯酸酯类;抗冲改性剂;共混体系;增韧机理;改性

外文关键词：PVC; ACR; toughening; morphological structure

摘要：通过TEM、SEM等方法研究了不同结构丙烯酸酯类抗冲改性剂 (ACR)对聚氯乙烯 (PVC) /ACR共混体系形态结构的影响 ,对ACR增韧硬质PVC的机理作了探讨。当PVC中含有 8phr以上完善核壳结构的ACR时 ,在共混体系能形成网络结构 ,这一结构在受冲击时产生多重银纹 ,并实现银纹的钝化 ,在PVC/ACR共混体系的增韧机理中占主导地位。同时 。
Influences of different acrylic impact modifiers (ACR) upon morphological structure of PVC/ACR blending systems was studied by means of TEM, SEM. Mechanism of ACR's excellent toughening effect on PVC is also investigated. The results show that a network structure, which causes multiple crazing and brings about passivation of crazes when the materials being subjected to a impact force, is formed in PVC if the content of ACR with perfect core shell structure exceeds 8 phr. Moreover, ACR can also induce the sheer deformation of PVC and its toughening effect is thus improved.