石油化工2013，Vol.42Issue(1)：30-33,4.
抗冲共聚聚丙烯的组成、结构与性能
Composition, Structure and Properties of Impact Propylene Copolymer
摘要
Abstract
The fraction, viscosity, crystal structure and the compatibility between the disperse phases and the matrixes of two impact propylene copolymers(PPc-A and PPc-B) were studied by means of solvent fractionation, viscosity analysis, POM, SEM and DMA. The results of the fractionation and viscosity analysis indicate that both PPc-A and PPc-B contain fractions of ethylene-propylene random copolymer, crystalline ethylene-propylene copolymer(BC) and isotactic polypropylene(/PP). The elongation at break of PPc-A is much better than that of PPc-B because the higher amount of BC in PPc-A and the larger viscosity difference between the rubber phase and matrix in PPc-B, even though the mechanical properties of PPc-A are similar to those of PPc-B. The characterization results of POM, SEM and DMA show that PPc-A contains fewer and smaller crystallizable segments of BC; the rubber phase in the quenching surface of PPc-A has a bigger size and better uniformity; and the compatibility of the rubber phase and z'PP matrix in PPc-A is better.关键词
抗冲共聚聚丙烯/分级/断裂伸长率/相容性Key words
impact propylene copolymer/ fractionation/ elongation at break/ compatibility分类
化学化工引用本文复制引用
刘小燕,陈旭,冯颜博,贾军纪,张长军..抗冲共聚聚丙烯的组成、结构与性能[J].石油化工,2013,42(1):30-33,4.基金项目
中国石油天然气集团公司资助项目(2011B-2703-0103). （2011B-2703-0103）
