The modified polyvinyl alcohol as a membrane material is developed to get porous membranes.The polyvinyl butyral membranes are prepared through the phase inversion method.

• 摘要以聚乙烯醇缩丁醛为膜材料，采用湿法相转化法制备了聚乙烯醇缩丁醛多孔分离膜，考察了聚乙烯醇缩丁醛的成膜规律和膜性能。