魏志勇,张万喜,陈广义,梁继才,王沛,刘炼

• 1:大连理工大学汽车工程学院工业装备结构分析国家重点实验室
• 2:大连海事大学交通与物流工程学院

摘要(Abstract)：

采用差示扫描量热仪(DSC)研究了山梨糖醇/稀土复合成核剂不同组成对等规聚丙烯非等温结晶动力学及其熔融行为的影响。动力学分析结果表明莫志深方法很好地描述聚丙烯非等温结晶动力学,用Kissinger公式计算所得非等温结晶活化能表明复合成核剂的加入提高了结晶活化能。结晶形态和熔融行为均依赖于复合成核剂的组成和降温冷却速率,较低的降温速率有利于β晶型的生成,随着降温速率的增加,β晶型的相对含量减少。在较多的β成核剂含量和较低的降温速率条件下,可以获得较高含量的β晶型。

关键词(KeyWords)： 结晶动力学;熔融行为;复合成核剂;聚丙烯

Abstract:

Keywords:

基金项目(Foundation): 863高新技术计划资助项目(2009AA03Z319);; 中央高校基本科研业务费资助

作者(Author): 魏志勇,张万喜,陈广义,梁继才,王沛,刘炼

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