采用溶胶-凝胶技术结合酸碱两步法制得SiO2醇凝胶分散液,然后通过简单的旋涂法和常压干燥技术在玻璃表面上构筑SiO2气凝胶薄膜,从而一步法实现玻璃表面低表面能物质的修饰和粗糙结构的构建,赋予玻璃表面超疏水、自清洁的特性.考察制备条件是否老化对玻璃表面形成的SiO2气凝胶薄膜性能的影响.结果表明,经过60℃老化后的SiO2凝胶,在玻璃表面制备出的SiO2气凝胶薄膜具有更加优异的超疏水性能,静态水接触角可以达到165.6°,滚动角小于1°.
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