【摘要】 报导两种管式聚乙稀醇复合膜（PVA/SiO₂和PVA/环氧树脂）的制法,初步测试了它们对不同浓度乙醇水溶液的渗透气化通量和分离系数,讨论了这两种复合膜的分离性能更多还原

【Abstract】 The preparation of two types of polyvonyl alcohol（PVA） pipelic composite membranes （polyvinyl alcohol—silicon dioxide : PVA/Sio₂ and polyvinyl alcohol—bisphenol—A epoxy resine: PVA/BPAER）were studied. These membranes were tested in respect to their permeatefluxes and select—seperate coefficient in the experiment for seperating different concentration of ethanol aqueous solutions by pervaporation. The selectivity and practicality of PVA/Sio₂ and PVA/BPAER were also discussed.更多还原