中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 93-95.

• 研究论文 • 上一篇    下一篇

核/壳结构聚丙烯酸酯塑料增韧剂的制备与结构控制

张会轩1, 戴英1, 杨海东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, 130022
  • 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;国家教委年轻教师基金

Preparation and Structure Control of Poly(butyl acrylate)/Poly(methyl methacrylate)Core/Shell Impact Modifier

Zhang Huixuan1, Dai Ying1, Yang Haidong1, 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

785

被引次数

31 | 5

摘要： 用橡胶与塑料共混进行塑料增韧时, 橡胶粒径尺寸和橡塑两相界面结合力是决定增韧效果的关键因素, 而使用具有核/壳结构的增韧剂粒子是同时控制该两因素的有效办法. 增韧剂的核起增韧作用, 壳在橡胶核与塑料基体之间起连接作用. 核/壳结构增韧剂对提高 PVC[1],PC[2], SAN[3], PM M A[4], PBT[5]等塑料的抗冲强度非常有效. 本工作用种子乳液聚合技术合成了核/壳结构聚丙烯酸酯类增韧剂, 研究了对其粒径大小和形态结构的控制。

关键词: 聚丙烯酸酯, 增韧剂, 制备, 种子乳液聚合

Abstract: Poly(butyl acrylate)/poly(methyl methacrylate)core/shell impact modifiers were prepared by seeded emulsion polymerization. The structures of the modifiers have been designed and the factors affecting the structure formation have been discussed. In order to inhibite the formation of new particles during seeded polymerization, an oil soluble redox initiator was used and the concentration of the emulsifier and feed speed of the monomer were controlled. The results showed that the particle size of the impact modifier can be adjusted by varing the amount of seed emulsion used in the seeded emulsion polymerization. TEM micrographs showed that the impact modifiers are monodisperse particles of spherical structure.

Key words: polyacrylate, impact modifier, praparation, seeded emulsion polymerization

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