文献类型：期刊文献

中文题名：退火处理对成核聚丙烯性能的影响

英文题名：Effect of Annealing on Properties of Polypropylene Nucleated with Sodium Phosphate

作者：孟鑫[1,2];公维光[1,2];陈伟杰[1,2];伍楚诗[1,2];盛艳[1,2];罗吉[1,2];辛忠[1,2]

机构：[1]华东理工大学化工学院,上海市多相尺度重点实验室,上海200237;[2]华东理工大学化工学院产品工程系,上海200237

年份：2018

卷号：32

期号：2

起止页码：33

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：国家高技术研发中心863计划项目(2015AA034003)

语种：中文

中文关键词：退火处理;聚丙烯;成核;力学性能;耐热性能;结晶性能

外文关键词：annealing treatment; polypropylene; nucleation; mechanical property; heat resistance; crystalline behavior

摘要：采用退火处理对磷酸酯钠盐成核的聚丙烯(PP)体系进行了性能调控,研究了退火时间和退火温度对成核PP力学性能、耐热性能和结晶性能的影响。结果表明,随着退火温度的提高和退火时间的延长,PP的力学性能、耐热性能和结晶能力均得到了明显提升,特别是在120℃下,退火0.5h,PP的拉伸强度从38.0 MPa提高到39.4 MPa,弯曲模量从1 227 MPa提高到1 882 MPa,热变形温度从112.2℃提高到122.7℃,结晶度从36%提高到44%。
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 to1 882 MPa and in heat deflection temperature from 112.2 to 122.7 ℃.Moreover,the degree of crystallinity was improved from 36 %to 44 %.