高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (2): 281.

• 研究简报 • 上一篇    下一篇

SiO2粉末在非水高浓度聚合物溶液中的分散

陈立富   

  1. 厦门大学化学系, 厦门, 361005
  • 收稿日期:1993-03-09 修回日期:1993-05-03 出版日期:1994-02-24 发布日期:1994-02-24
  • 通讯作者: 陈立富,男,30岁,博士,讲师.
  • 作者简介:陈立富,男,30岁,博士,讲师.

Dispersion of SiO2 Powders in Non-aqueous High Concentration Polymer Solution

CHEN Li-Fu   

  1. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1993-03-09 Revised:1993-05-03 Online:1994-02-24 Published:1994-02-24

PDF (PC)

关键词: SiO2, 氢键, 分散剂

Abstract: The dispersion of silica in concentrated courtelle/DMFsolution was studied(Courtelle is a copolymer of 94 mol%acrylonitrile and 6 mol%methyl acrylate).It is found that the agglomeration of silica is the combined results of surface energy and surface hydrogen bonding, The dispersibility of silica is markedly improved by the addition of 3-trimethoxysilyl propylmethacrylate(>1.2%).The improvement is believed to be caused by the chemical reaction between the silane and silanol groups on silica surface, reducing the concentration of hydrogen bonding, hence the attractive forces.

Key words: Silica, Hydrogen bonding, Dispersion agent

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