高熔体强度聚丙烯的制备与表征

Preparation and Characterization of High Melt Strength Polypropylene

高熔体强度聚丙烯(HMSPP)相比于普通聚丙烯具有优越的综合性能,其良好的加工性能使其具有广阔的应用前景,并成为许多国家近年来竞相开发的热点。本文从HMSPP的结构特点、制备方法和性能测试等方面总结了近年来的研究进展,着重介绍了反应器合成长链支化型高熔体强度聚丙烯(LCB-HMSPP)的方法以及其结构表征,并在总结国内外研究现状的基础上展望了高熔体强度聚丙烯研究的发展前景。

Compared with conventional polypropylene （PP）, high melt strength polypropylene （HMSPP） has more prosperous applications due to its superior overall properties especially the excellent melt processibility. As such, HMSPP has recently become a hotspot of development in many countries. This review summarizes researches in the past few years on the development of HMSPP, from preparation to property characterization, with special emphasis given to the in situ polymerization technique to access long chain branched HMSPP （LCB-HMSPP）. The future prospect of HMSPP research is foreseen in the last.