以常用工程材料硅树脂BP与St(o)ber法合成的二氧化硅(SiO2)分散液为原料,运用喷涂法(spray-coating)制备出了功能性微/纳粗糙(MNR)结构的超疏水涂层,其接触角可以达到146.5°,滚动角小于1°(测试液滴量为15μL).通过分析喷涂法制备复合涂层所需的条件,得出喷涂液pH＝7.7-8.0时,在适当的硅树脂BP/SiO2配比条件下,复合涂层表面形成了与荷叶表面类似的MNR结构.随着SiO2含量的增加,MNR复合涂层表面类球状突起小球的体积有增大的趋势.结合硅树脂BP的低表面能,MNR复合涂层具备了超疏水性,且复合涂层具备良好的耐腐蚀和耐老化性能.
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