中国塑料Issue(12)：87-92,6.
高相对分子质量成核剂改性聚丙烯的非等温结晶动力学和力学性能研究
Study on Mechanical Property and Non-isothermal Crystallization Kinetics of High Relative Molecular Mass Nucleating Agent Modified Polypropylene
摘要
Abstract
Non-isothermal crystallization kinetics of polypropylene and high relative molecular weight nucleating agent (PNA) modified polypropylene was studied using differential scanning calorimetry (DSC) with the data analyzed with Jeziorny method. Mechanical properties of po[ypropylene and PNA modified polypropylene were studied using electronic universal testing machines. It showed that PNA increased the crystallization rate of PP, which was indicated by decreased t1/2and increased Zc. t1/2 of polypropylene with 0. 3 phr PNA decreased to 64.9 % that of polypropylene, n of polypropylene decreased with the increasing cooling rate, whereas n of PNA modified polypropylene increased with the increasing cooling rate. Tensile strength and impact strength of PNA modified polypropylene were higher than polyprolylene.关键词
聚丙烯/成核剂/结晶度/非等温结晶动力学/力学性能Key words
polypropylene/nucleating agent/degree of crystallinity/non-isothermal crystallizition kinetics/mechanical property分类
化学化工引用本文复制引用
王向东,刘本刚,刘海明,汪文昭,王青松,刘伟,杜中杰..高相对分子质量成核剂改性聚丙烯的非等温结晶动力学和力学性能研究[J].中国塑料,2012,(12):87-92,6.基金项目
北京市属高校人才强教计划项目 （）
