中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (5): 11-15.

• 研究论文 • 上一篇    下一篇

丙烯酸酯共聚物无皂水溶胶流变性能的研究

谢志明, 朱树辉, 李卓美   

  1. 中山大学高分子研究所, 广州 510275
  • 收稿日期:1991-10-17 修回日期:1992-04-21 出版日期:1992-10-10 发布日期:1992-10-10

STUDY ON THE RHEOLOGICAL PROPERTY OF WATER-SOLUBILIZED ACRYLICS

Xie Zhiming, Zhu Shuhui, Li Zhuomei   

  1. Institute of Polymer Science, Zhongshan University, Guangzhou 510275
  • Received:1991-10-17 Revised:1992-04-21 Published:1992-10-10 Online:1992-10-10

PDF

382

被引次数

13

摘要： 合成了不含均聚物的丙烯酸酯四元共聚物(MMA/BA/AA/HEMA)。用GPC测定了共聚物的分子量及分子量分布。将共聚物中的羧基中和后制成无皂水溶胶。研究了水溶胶的流变性、表观粘度与剪切速率关系、表观粘度与固含量关系。所得无皂水溶胶涂料具有较优异的性能。

关键词: 丙烯酸酯共聚物, 水溶胶, 流变性能, 涂料

Abstract: A copolymer without homopolymer has been prepared form methyl mcthacrylate, butylacrylate, acrylie acid and β-hydroxyethyl metacrylate. The molecular weight and the molecular weight distribution of the copolymer were determined by GPC.The water-solubilized acrylics was obtained by neutralizing 60% of the carboxyl groups of the copolymer, and its rheological behavior, dependence of apparent viscosity on the shear rate as well as on the solid content have been studied. The paint obtained by mixing the water-solubilized acrylics with solidifying agent hexamethoxymethyl melamine (20%) and acidic catalyst PTSA (0.5%) has a well-qualified property.

Key words: acrylics, copolymer, water-solubilized acrylics, rheological property, paint

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