石油化工Issue(11)：1302-1306,5.
抗冲共聚聚丙烯树脂粒子的生长机理
Particle Growth Mechanism of High Impact Copolypropylene Resins
董金勇 1师建军1
作者信息
- 1. 中国科学院 化学研究所 工程塑料重点实验室，北京 100190
- 折叠
摘要
Abstract
In the polymerization process of high impact copolypropylene(hiPP),a cross-linker,1.9-decadine,was introduced in the ethylene/propylene copolymerization,which led to a simultaneous cross-linking of the generated ethylene-propylene rubber(EPR) with hiPP. The composition of EPR cross-linked hiPP,gel content and dispersion of hiPP in EPR were investigated by means of FTIR, SEM and TEM. The results showed that,when the EPR cross-linking occurred, its flowability was reduced and hence EPR was stably dispersed in PP particles highly homogeneously. It was indicated that the catalyst fragments did not migrated in the polymerization process. The EPR migration resulted in its aggregation in pores inside PP particles. The content of EPR could be increased further without the aggregation of PP particles and the adherence on the reactor wall.关键词
抗冲共聚聚丙烯/乙丙无规共聚物/交联/Ziegler-Natta催化剂/粒子生长机理Key words
high impact copolypropylene/ethylene-propylene random copolymer/cross-linking/Ziegler-Natta catalyst/particle growth mechanism分类
化学化工引用本文复制引用
董金勇,师建军..抗冲共聚聚丙烯树脂粒子的生长机理[J].石油化工,2015,(11):1302-1306,5.
