文献类型：期刊文献

英文题名：Preparation, microstructure and properties of ABS resin with bimodal distribution of rubber particles

作者：Li, Gongsheng[1];Lu, Shulai[1];Pang, Jianxun;Bai, Yanjun;Zhang, Liu;Guo, Xuhong[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：66

期号：1

起止页码：219

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20114514505723);WOS:【SCI-EXPANDED(收录号:WOS:000297660300066)】；

基金：The authors are grateful for the financial support by the key scientific and technological project of PetroChina (0704D01-01).

语种：英文

外文关键词：ABS resin; Polymers; Microstructure; Bi-seeded emulsion grafting copolymerization; Toughness; Rigidity

摘要：A novel ABS resin with bimodal distribution of rubber particles (BM-ABS) was prepared by hi-seeded emulsion grafting copolymerization (Bi-SEGP) using two different size polybutadiene (PB) particles (320 nm and 575 nm) as seeds. For property comparisons, a model ABS resin with unimodal distribution of rubber particles (UM-ABS) was prepared by only using 320 run PB particles as seeds. Microscopical morphology of BM-ABS and UM-ABS was observed by transmission electron microscope (TEM). The results showed that BM-ABS possessed higher properties than UM-ABS. Specifically, keeping the same rubber content, BM-ABS had higher toughness than UM-ABS and almost the same rigidity as UM-ABS; keeping the same toughness. BM-ABS had higher rigidity and needed less rubber content than UM-ABS. The synergistic effect of the bigger and the smaller rubber particles was the essential reason why BM-ABS displays improved properties than UM-ABS. (C) 2011 Elsevier B.V. All rights reserved.