塑料科技2018，Vol.46Issue(2)：30-35,6.DOI:10.15925/j.cnki.issn1005-3360.2018.02.002
α成核剂改性聚丙烯等温结晶动力学及晶体形态研究
Study on Isothermal Crystallization Kinetics and Crystal Morphology of Modified Polypropylene with α Nucleating Agent
摘要
Abstract
The isothermal crystallization kinetics and crystal morphology of Polypropylene (PP) modified by α nucleating agent (2 benzene methylene sorbitol) with various content were investigated by DSC,POM and XRD.The results show that crystallization rate of PP and modified PP decrease when isothermal crystallization temperature rises,α nucleating agent can improve the crystallization rate of PP at high temperature,but it is not obvious at low temperature.As temperature rises,the crystal growth pattern and morphology of PP and PP with 0.2％ α nucleating agent have changed from lamella to complete spherulites,but the increase of α nucleating agent content can inhibit the change of crystal morphology,indicating the crystallization rate can control the morphology.PP with 0.4％ α nucleating agent has the fastest rate for isothermal crystallization,the smallest grain and the best nucleation effect.关键词
聚丙烯/α晶型成核剂/等温结晶动力学/晶体形态Key words
Polypropylene/α nucleating agent/Isothermal crystallization kinetics/Crystal morphology分类
化学化工引用本文复制引用
任伊锦,张军,明智,刘少东..α成核剂改性聚丙烯等温结晶动力学及晶体形态研究[J].塑料科技,2018,46(2):30-35,6.基金项目
湖北省自然科学基金B类项目(2015CFC786) （2015CFC786）
湖北省教育厅优秀青年基金项目(Q20131802) （Q20131802）
