用Stober法制备纳米级分散的SiO2颗粒,使其均匀地分散在PVA水溶液中,并通过相转化法制得纳米SiO2/PVA复合超滤膜.对所得膜 进行了DSC分析和力学性能测试.结果表明,膜的玻璃化转变温度(Tg)和力学性能都有 明显的提高.初步探讨了纳米SiO2对所得膜增强机理;通过超滤实验对所得膜的性能进行了评价.
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