Fabricating PC/PAN composite membranes by vapor-induced phase separation

In this study, a series of polycarbonate/polyacrylonitrile (PC/PAN) composite membrane has been successfully fabricated by vapor-induced phase separation and in-situ casting process. The effect of the casting solution concentration on the membrane morphology was investigated. The morphology of the P...

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Bibliographic Details
Published in:Desalination 2008-12, Vol.233 (1), p.96-103
Main Authors: Kao, S.T., Teng, M.Y., Li, C.L., Kuo, C.Y., Hsieh, C.Y., Tsai, H.A., Wang, D.M., Lee, K.R., Lai, J.Y.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Composite membranes
Crystallization, leaching, miscellaneous separations
Exact sciences and technology
In-situ casting process
Pollution
Skin-free
Vapor-induced phase separation
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Summary:In this study, a series of polycarbonate/polyacrylonitrile (PC/PAN) composite membrane has been successfully fabricated by vapor-induced phase separation and in-situ casting process. The effect of the casting solution concentration on the membrane morphology was investigated. The morphology of the PC/PAN composite membranes was characterized by SEM. The effect of the skin layer thickness on the water flux was measured at a fixed pressure. Compared with the traditional asymmetric PAN membrane with a dense skin layer and porous support layer, the PC/PAN composite membranes prepared by in-situ casting process effectively prevent the skin layer formation, resulting in the water flux increases.
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2007.09.031