Isothermal crystallization kinetics of polypropylene/POSS composites

被引：41

作者：

Zhou, Zhiyong ^{[1
]}

Cui, Limei ^{[1
]}

Zhang, Yong ^{[1
]}

Zhang, Yinxi ^{[1
]}

Yin, Nianwei ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2008年 / 46卷 / 17期

基金：

中国国家自然科学基金;

关键词：

composites; crystallization; crystallization kinetics; kinetics (polym.); polyhedral oligomeric silsesquioxane (POSS); poly(propylene);

D O I：

10.1002/polb.21509

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polypropylene (PP)/octavinyl polyhedral oligomeric silsesquioxane (POSS) composites were prepared by two different processing methods: reactive blending and physical blending, and the crystallization behavior of PP and PP/POSS composites was studied by means of differential scanning calorimetry and polarized optical microscope. The results showed that the crystallization of PP in PP/POSS composites was strongly influenced by the different processing methods. POSS particles can act as effective nucleating agent, accelerating the crystallization of PP. The crystallization rate increased more dramatically for the reactive blending composite due to the stronger nucleating effect of PP grafted POSS. (C) 2008 Wiley Periodicals, Inc.

引用

页码：1762 / 1772

页数：11

共 32 条

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