反应器内增刚聚丙烯的研究进展

Research Progress of Rigid-adding Polypropylene in Reactor

综述了高刚性聚丙烯的性能和制备方法,通过反应器内和反应器外增刚两种方法对聚丙烯性能影响对比显现出反应器内增刚的优势,即反应器内增刚可以增加聚丙烯刚性的同时不损坏或较小程度上损坏聚丙烯其它性能。从聚合工艺、催化剂体系选择、催化剂改性(催化剂预聚改性成核法和聚合改性)和反应器内添加成核剂等方面介绍了反应器内高刚性聚丙烯最新研究进展。

The article makes a general review of performance and preparation measures of high rigid polypropylene. More advantages could be seen to increase rigid of polypropylene inside the reactor than outside. It increases the rigid of polypropylene inside the reactor but shows no or less destruction to its porformance. The article also introduces latest research progresses of high rigid polypropylene inside the reactor in polymerizing technology, selec- tion of catalyst, modification of catalyst （pre-polymerizing core formation and polymerizing of catalyst modification）, and adding core formation agent in the reactor.