Plasma deposition of vinyl acetate onto Nylon-4 membrane for pervaporation and evapomeation separation of aqueous alcohol mixtures
作者： Kueir-Rarn Lee , Rong-Yuh Chen , Juin-Yih Lai
DOI: 10.1016/0376-7388(92)80015-C
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摘要: Pervaporation and evapomeation separations of water-alcohol mixtures through a modified Nylon-4 membrane - coated with plasma deposited, hydrolyzed vinyl acetate (VAc) (PVA-p-N4), were investigated. The effects downstream pressure, deposition conditions, feed composition, temperature, size the alcohols on performance PVA-p-N4 membranes studied. separation factor permeation rate this are both higher than those unmodified for pervaporation aqueous ethanol solutions. A 13.5 420 g/m2-hr can be obtained. Compared pervaporation, effectively increases mixtures, while is decreased.
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