华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (10): 81-85.

• • 上一篇    下一篇

水性涂料浮色发花的研究

黄 莹 程 江 文秀芳 杨卓如    

  1. 华南理工大学 化学工程研究所‚广东 广州510640
  • 出版日期:2003-10-20 发布日期:2022-06-08
  • 作者简介:黄莹(1977-)‚女‚博士生‚主要从事精细化工研究.

Flooding and Floating in Waterborne Coatings

Huang Y ing Cheng Jiang Wen Xiu-fang Y ang Zhuo-ru   

  1. Research Institute of Chemical Engineering‚South China Univ.of Tech.‚Guangzhou510640
  • Online:2003-10-20 Published:2022-06-08
  • About author:Huang Ying(born in1977)‚female‚doctoralcandidate‚mainly researches on fine chemical engineering.

摘要: 研究了乳胶色漆中影响涂料外观和涂装效果的浮色发花现象.结果表明:颜料和填料的粒径差别大 会造成涂料及涂膜的浮色和发花;颜料(TiO2)或填料(高岭土)用量不同‚着色后浮色发花的程度也不相同‚ 不出现浮色的漆样用水稀释后可能有浮色出现;适当含量的具疏水基团的分散剂和增稠剂可降低表面张力‚ 提高体系粘度‚阻止浮色发花的发生或减轻浮色发花程度.对比试验表明‚不同的工艺条件对浮色发花影响 不大.

关键词: 浮色, 发花, 乳胶漆, 外墙涂料

Abstract: Flooding and floating affecting the appearances and the effect of latex paint and film were investigated.The results show that too wide distribution of the particle sizes of pigment and filling arouses flooding and floating.Different dosages of pigment (TiO2) or filling (kaolin) bring about diverse degrees of flooding and floating.Coatings that show no phenomena of flooding or floating will possibly do when diluted.Using dispersants or thickeners with hydrophobic constituents can increase viscosity‚reduce surface tension‚and are all good for preventing or lightening floating and flooding. Contrast test reveals little influence of processing technique on floating or flooding.

Key words: flooding, floating, latex paint, exterior wall coating

中图分类号: