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将壳聚糖（ＣＳ）和聚乙烯醇（ＰＶＡ）混合物涂到聚丙烯腈（ＰＡＮ）底膜上，通过交联制成壳聚糖复合膜。研究了膜对乙醇／水溶液的渗透汽化性能，讨论了料液浓度、温度对膜分离性能的影响。结果表明，ＣＳ－ＰＶＡ／ＰＡＮ膜具有优异的渗透选择性能。当料液乙醇含量为９５ｗｔ％，温度为６０℃和７０℃时，渗透通量分别为３１０ｇ／（ｍ２·ｈ）和４３３ｇ／（ｍ２·ｈ）；分离因子为１１６和１２７。渗透通量与温度呈Ａｒｒｈｅｎｉｕｓ关系
The mixture of chitosan (CS) and polyvinyl alcohol (PVA) was coated on the base film of polyacrylonitrile (PAN) to prepare the chitosan composite film by cross-linking. The pervaporation performance of the membrane on ethanol / water solution was studied. The effects of feed concentration and temperature on membrane separation performance were discussed. The results show that CS-PVA / PAN film has excellent penetration selectivity. The permeation fluxes were 310 g / (m2 · h) and 433 g / (m2 · h) when the ethanol content of the feed solution was 95wt%, the temperature was 60 ℃ and the temperature was 70 ℃. The separation factors were 116 and 127, respectively. Infiltration flux and temperature showed Arrhenius relationship