塑料科技2024，Vol.52Issue(11)：13-18,6.DOI:10.15925/j.cnki.issn1005-3360.2024.11.003
聚对苯二甲酸丁二醇酯共混改性聚丙烯的耐热性能研究
Study on Heat Resistance of Polypropylene Blending Modified by Polybutylene Terephthalate
摘要
Abstract
In order to improve the heat resistance temperature of polypropylene(PP)and broaden the application range of PP material,maleic anhydride grafted hydrogenated styrene-butadiene block copolymer(SEBS-g-MAH)was selected as the compatibility agent of polybutylene terephthalate(PBT)and PP blending system,and the effect of compatibility agent of SEBS-g-MAH was compared with that of PP-g-MAH to prepare PP/PBT blends.Differential scanning calorimeter(DSC),scanning electron microscopy(SEM)analysis and mechanical properties test results showed that SEBS-g-MAH effectively improved the compatibility of PP and PBT.Compared with pure PP,the heat deflection temperature of the prepared PP/PBT/SEBS-g-MAH(80/20/15)blend was increased by 15℃,and the notch impact strength was increased by about 50%.The terminal carboxyl reaction of SEBS-g-MAH and PBT changed the molecular structure symmetry of PBT,reduced the crystallization ability of PBT,increased the reactive compatibilization between PP and PBT,and improved the comprehensive performance of the PP/PBT blend.关键词
聚丙烯/聚对苯二甲酸丁二醇酯/耐热性能/共混改性Key words
Polypropylene/Polybutylene terephthalate/Heat resistance/Blending modification分类
化学化工引用本文复制引用
方丽华,李非凡,董茹欣,陈榛榛,孙子瑞,黄世俊,苏志忠..聚对苯二甲酸丁二醇酯共混改性聚丙烯的耐热性能研究[J].塑料科技,2024,52(11):13-18,6.基金项目
福建省科技厅引导性项目(2023H0018) （2023H0018）
福建省区域发展项目(2021Y3003) （2021Y3003）
