中国塑料2018，Vol.32Issue(2)：33-36,4.DOI:10.19491/j.issn.1001-9278.2018.02.005
退火处理对成核聚丙烯性能的影响
Effect of Annealing on Properties of Polypropylene Nucleated with Sodium Phosphate
摘要
Abstract
An annealing treatment was performed for polypropylene (PP) by using sodium phosphate as a nucleating agent,and the effects of annealing temperature and annealing time on mechanical performance,heat resistance,and crystalline properties of PP were investigated.The results indicated that the annealing treatment effectively improved the mechanical properties,heat resistance and crystallinity of PP.After being annealed at the temperature of 120 ℃ for 0.5 h,PP achieved an increase in tensile strength from 38.0 to 39.4 MPa,in flexural modulus from 1 227 to 1 882 MPa and in heat deflection temperature from 112.2 to 122.7 ℃.Moreover,the degree of crystallinity was improved from 36 ％ to 44 ％.关键词
退火处理/聚丙烯/成核/力学性能/耐热性能/结晶性能Key words
annealing treatment/polypropylene/nucleation/mechanical property/heat resistance/crystalline behavior分类
化学化工引用本文复制引用
孟鑫,公维光,陈伟杰,伍楚诗,盛艳,罗吉,辛忠..退火处理对成核聚丙烯性能的影响[J].中国塑料,2018,32(2):33-36,4.基金项目
国家高技术研发中心863计划项目(2015AA034003) （2015AA034003）
