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高熔体强度聚丙烯/嵌段共聚聚丙烯共混体系的结晶行为研究

刘伟 王向东 刘本刚

中国塑料2011,Vol.25Issue(11):27-33,7.
中国塑料2011,Vol.25Issue(11):27-33,7.

高熔体强度聚丙烯/嵌段共聚聚丙烯共混体系的结晶行为研究

Crystallization Behavior of High Melt Strength Polypropylene/Block Polypropylene Blends

刘伟 1王向东 1刘本刚1

作者信息

  • 1. 北京工商大学材料与机械工程学院,北京100048
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摘要

Abstract

High melt strength/block polypropylene(HMSPP/PP-B) blends were prepared by a twin-screw extruder. The non-isothermal crystallization behavior of the blends was studied using differential scanning calorimetry by various cooling rates and was analyzed with Jezionry method. The morphology of spherulites of blends were observed by POM. It was found that the melt and crystallization temperature of blends increased with the increasing of PP-B. Besides, PP-B could change the crystallization process of blends leading to smaller spherulites size and more spherulites amount.

关键词

高熔体强度聚丙烯/嵌段共聚聚丙烯/非等温结晶/动力学

Key words

high melt strength polypropylene/block polypropylene nonisothermal crystallization/kinetics

分类

化学化工

引用本文复制引用

刘伟,王向东,刘本刚..高熔体强度聚丙烯/嵌段共聚聚丙烯共混体系的结晶行为研究[J].中国塑料,2011,25(11):27-33,7.

基金项目

北京市属高等学校人才强教计划资助项目(PHR201108078) ()

中国塑料

OA北大核心CSCDCSTPCD

1001-9278

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