本文研究了铸膜液溶剂、铸膜温度等铸膜条件及膜厚度对过氯乙烯膜渗透汽化分离乙醇水溶液性能的影响.发现在较低温度下,铸膜液溶剂对分离性能的影响并不显著,挥发速度慢的溶剂形成的膜致密性好,分离系数大而透过速率校 随着铸膜温度升高,分离系数下降而透过速率增大,而膜厚度增加,分离系数增大但透过速率下降. In this paper, the effects of casting solution solvent, casting temperature and other casting conditions and film thickness on the performance of perovskisation membrane pervaporation to separate ethanol aqueous solution were studied. It was found that the effect of casting solution solvent on the separation performance was not significant at lower temperature Significant, slow evaporation of the solvent formed by the membrane densification is good, the separation coefficient is large and the penetration rate with the casting temperature, the separation factor decreases and the permeability rate increases, while the membrane thickness increases, the separation factor increases Through the rate of decline.