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。

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.