中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 16-18.

• 研究论文 • 上一篇    下一篇

核/壳结构聚丙烯酸酯增韧剂改性PVC的研究

张会轩1, 杨海东1, 戴英1, 冯之榴2   

  1. 1. 吉林工学院化工系, 长春 130012;
    2. 中国科学院长春应用化学研究所, 长春
  • 收稿日期:1996-08-28 修回日期:1997-01-06 出版日期:1997-06-10 发布日期:1997-06-10
  • 基金资助:
    国家自然科学基金;国家教委资助青年教师基金

Impact Modification of PVC with PBA/PMMA Core/Shell Composite Particles

Zhang Huixuan1, Yang Haidong1, Dai Ying1, Feng Zhiliu2   

  1. 1. Department of Chemical Engineering, Jilin Institute of Technology, Changchun 130012;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
  • Received:1996-08-28 Revised:1997-01-06 Published:1997-06-10 Online:1997-06-10

PDF

500

被引次数

51 | 7

摘要： 用核/壳结构聚丙烯酸酯增韧剂对PVC进行了抗冲击改性,研究了增韧剂的组成结构与增韧效果之间的关系,通过实验发现在本工作所考察的范围内,增韧剂粒径越大,其增韧效果越好。电镜观察证实共混体系的形态为弹性体粒子均匀地分散在PVC基体中。

关键词: 核/壳结构, PVC, 聚丙烯酸酯, 增韧

Abstract: Polyvinyl chloride(PVC)were toughened with polybutyl acrylate/polymethyl methacrylate core/shell impact modifier. The relationship between impact modifiers structure and its toughening efficiency to PVC was studied. Experimental results indicate that the toughening efficiency increases with particle size of the modifier. The optimum structure for the modifier is core/shell ratio 72/28～82/18, particle size 0.22 μm, fraction of crosslinking and grafting agent 0.5%～1.0%, respectively. SEM and TEM study on the morphology of the modified PVC shows that the impact modifier is uniformly dispersed in the PVC matrix.

Key words: core/shell latex particle, PVC, polyacrylate, toughening

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