华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (2): 1-5.doi: 10.3969/j.issn.1000-565X.2010.02.001

• 化学化工 •    下一篇

铝颜料的聚丙烯酸酯与SiO2双重包覆改性

高爱环 皮丕辉 路阳 文秀芳 程江 杨卓如   

  1. 华南理工大学 化学与化工学院, 广东 广州 510640
  • 收稿日期:2009-03-27 修回日期:2009-04-29 出版日期:2010-02-25 发布日期:2010-02-25
  • 通信作者: 程江(1965-),男,教授,博士生导师,主要从事精细化工研究.E-mail:cejcheng@scut.edu.cn E-mail:gfdoah@zqu.edu.cn
  • 作者简介:高爱环(1976-),女,在职博士生,肇庆学院讲师,主要从事精细化工研究.
  • 基金资助:

    国家自然科学基金资助项目(20976059);广东省自然科学基金资助项目(07006528)

Modification of Aluminum Pigments via Encapsulation with Polyacrylate and Silicon Dioxide

Gao Ai-huan  Pi Pi-hui  Lu Yang  Wen Xiu-fang  Cheng Jiang  Yang Zhuo-ru   

  1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2009-03-27 Revised:2009-04-29 Online:2010-02-25 Published:2010-02-25
  • Contact: 程江(1965-),男,教授,博士生导师,主要从事精细化工研究.E-mail:cejcheng@scut.edu.cn E-mail:gfdoah@zqu.edu.cn
  • About author:高爱环(1976-),女,在职博士生,肇庆学院讲师,主要从事精细化工研究.
  • Supported by:

    国家自然科学基金资助项目(20976059);广东省自然科学基金资助项目(07006528)

摘要: 为了增强铝颜料的耐腐蚀性和与树脂相容性,先后以溶胶-凝胶法和原位聚合法在铝颜料表面包覆了SiO2和聚丙烯酸酯(PA)。分析了SiO2和PA包覆铝颜料的理论基础,运用FTIR、XPS和SEM等表征了铝颜料的表面形貌和结构,并考察了原位聚合条件对包覆铝颜料涂膜性能的影响。研究表明:在实验条件下,单体用量0.7g、聚合温度85℃、聚合时间4-5h时,制备的双重包覆铝颜料在树脂中分散性和附着力明显提高,涂层具有良好的涂膜外观、光泽度和耐酸性。

关键词: 铝颜料, 聚丙烯酸酯, SiO2, 原位聚合, 包覆, 附着力

Abstract:

In order to enhance the corrosion resistance and resin consistence of aluminum pigments, SiO2 and polyacrylate were used to encapsulate the pigments by means of the sol-gel method and the in-situ polymerization, respectively. Then, the mechanism of encapsulation was analyzed, and the surface morphology and structure of the encapsulated pigments were characterized by means of FT-IR, XPS and ESEM. Moreover, the influences of encap- sulating conditions on the properties of the coating films containing encapsulated aluminum pigments were investigated. The results show that, with a monomer dosage of 0. 7 g, the aluminum pigments encapsulated at 85 ℃ for 4 - 5 h is of significantly-improved dispersibility and adhesion, which enables the coating film to possess good appearance, high glossiness, and strong acid resistance.

Key words: aluminum pigment, polyacrylate, silicon dioxide, in-situ polymerization, encapsulation, adhesion