| 铝颜料的聚丙烯酸酯与SiO_2双重包覆改性 |
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| 引用本文： | 高爱环,皮丕辉,路阳,文秀芳,程江,杨卓如.铝颜料的聚丙烯酸酯与SiO_2双重包覆改性[J].华南理工大学学报(自然科学版),2010,38(2). |
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| 作者姓名： | 高爱环 皮丕辉 路阳 文秀芳 程江 杨卓如 |
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| 作者单位： | 华南理工大学,化学与化工学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | 为增强铝颜料的耐腐蚀性及与树脂的相容性,先后以溶胶-凝胶法和原位聚合法在铝颜料表面包覆SiO2和聚丙烯酸酯(PA),分析了SiO2和PA包覆铝颜料的机理,运用傅里叶变换红外光谱(FT-IR)、光电子能谱(XPS)和环境扫描电镜(ESEM)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后铝颜料涂膜性能的影响.研究结果表明:单体用量为0.7g、聚合温度为85℃、聚合时间为4～5h时,制备的双重包覆铝颜料在树脂中的分散性和附着力明显增强,涂层具有良好的外观、光泽度和耐酸性.
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| 关 键 词： | 铝颜料 聚丙烯酸酯 SiO2 原位聚合 包覆 附着力 |
| 收稿时间： | 2009-3-27 |
| 修稿时间： | 2009-4-29 |
Modification of Aluminum Pigments via Encapsulation with Polyacrylate and Silicon Dioxide |
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| Gao Ai-huan,Pi Pi-hui,Lu Yang,Wen Xiu-fang,Cheng Jiang,Yang Zhuo-ru.Modification of Aluminum Pigments via Encapsulation with Polyacrylate and Silicon Dioxide[J].Journal of South China University of Technology(Natural Science Edition),2010,38(2). |
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| Authors: | Gao Ai-huan Pi Pi-hui Lu Yang Wen Xiu-fang Cheng Jiang Yang Zhuo-ru |
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| Abstract: | In order to enhance the corrosion resistance and resin consistence of aluminum pigments, SiO_2 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 encapsulating conditions on the properties of the coating films containing encapsulated aluminum pigments were investigated. The results show that, with a monomer dosage of 0.7g, the aluminum pigments encapsulated at 85℃ for 4～5h is of significantly-improved dispersibility and adhesion, which enables the coating film to possess good appea-rance, high glossiness, and strong acid resistance. |
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| Keywords: | aluminum pigments polyacrylate SiO2 in situ polymerization encapsulation adhesion |
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