中国塑料2024，Vol.38Issue(7)：49-54,6.DOI:10.19491/j.issn.1001-9278.2024.07.009
N-苯基马来酰亚胺共聚物的合成及对PVC树脂耐热改性效果研究
Synthesis of N-phenylmaleimide copolymer and its heat-resistant modification effect on PVC resin
孙芳芳 1宋运运2
作者信息
- 1. 郑州科技学院土木建筑工程学院,郑州 450064||郑州市区域能源系统优化工程研究中心,郑州 450064
- 2. 郑州磨料磨具磨削研究所有限公司,郑州 450000
- 折叠
摘要
Abstract
A poly(N-phenylmaleimide-styrene-acrylonitrile)copolymer(PNSA)latex with a uniform molecular structure and good compatibility with PVC was successfully prepared through seed emulsion polymerization combined with a semi-continuous feeding method.PNSA/PVC blends were prepared through directly compounding PNSA with PVC resin,and its heat-resistant modification effect was evaluated.The results indicated that the PNSA latex exhibited a random structure and a uniform particle-size distribution ranging from 155.6 to 249.3 nm.The molecular structure of PNSA is uniform.The differential scanning calorimetry curve shows a single glass transition temperature(Tg)for PNSA,sug-gesting its excellent compatibility with PVC resin.When the addition amount of PNSA was increased from 0 to 50 wt%,the blends presented an increase in Tg from 84.8 to 107.2℃,and their Vicat softening temperature increased from 71.2 to 91.9℃.In addition to heat-resistant modification,the mechanical properties of the blends were also improved to a certain extent.This study is conducive to further expanding the application field of PVC.关键词
聚氯乙烯/N-苯基马来酰亚胺/自由基共聚/种子乳液/耐热改性Key words
poly(vinyl chloride)/N-phenylmaleimide/free radical copolymerization/seed emulsion polymerization/heat-resistant modification分类
化学化工引用本文复制引用
孙芳芳,宋运运..N-苯基马来酰亚胺共聚物的合成及对PVC树脂耐热改性效果研究[J].中国塑料,2024,38(7):49-54,6.
