中国塑料2018，Vol.32Issue(1)：21-26,6.DOI:10.19491/j.issn.1001-9278.2018.01.004
PE-HD/PE-UHMW共混物的非等温结晶动力学研究
Study on Non-isothermal Crystallization Kinetics of PE-HD/PE-UHMW Blends
摘要
Abstract
Nonisothermal crystallization behaviors of PE-HD/PE-UHMW blends were investigated by differential scanning calorimetry,their crystallization kinetics were analyzed by Jeziorny's and Mo's methods,and their crystallization activation energy was evaluated by Kissinger's and Takhor's methods.The results indicated that PE-UHMW could act as a nucleating agent to provide more activated nuclei for the crystallization of PE-HD and thus enhance its crystallinity through heterogeneous nucleation.As a result,the crystallization onset temperature,crystallization peak temperature and crystallization rate of PE-HD were improved.It was also found that the blend containing 10 wt ％ PE-UHMW achieved a minimum value in crystallization activation energy but a maximum value in crystallization rate.关键词
高密度聚乙烯/超高相对分子质量聚乙烯/共混物/非等温结晶/结晶动力学Key words
high-density polyethylene/ultra high molecular weight polyethylene/blend/nonisothermal crystallization/crystallization kinetics分类
化学化工引用本文复制引用
白玉峰,何小芳,康冬冬,曾林杰,曹新鑫..PE-HD/PE-UHMW共混物的非等温结晶动力学研究[J].中国塑料,2018,32(1):21-26,6.基金项目
河南省教育厅自然科学技术研究项目(2008B430008) （2008B430008）
国家级大学生创新创业训练计划项目(201610460093) （201610460093）
