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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2017.27.3.273

Preparation of Polysulfone Microfiltration Membranes by a Sulfonated Polyethersulfone Additive  

Kim, Nowon (Department of Environmental Engineering, Dong-Eui University)
Jung, Boram (Department of Environmental Engineering, Dong-Eui University)
Publication Information
Membrane Journal / v.27, no.3, 2017 , pp. 273-283 More about this Journal
Abstract
Polysulfone (PSF) is one of an important polymer that has been widely used in the manufacture of asymmetric microfiltration (MF) membranes. PSF membrane is considered as hydrophobic membrane that easily fouled during membrane operation process. The blending method is an effective method for improving the fouling resistance of PSF membranes. sPES (sulfonated polyethersulfone) is one of the useful polymers that can be used in PSF polymer blend method to improve hydrophilicity of PSF membranes. In this study, microfiltration polymer membranes were prepared by using PSF/sPES/PVP/BE/DMF casting solution and water coagulant. The morphology of MF membranes was changed by addition of a small amount of sPES in casting solution. The morphology of the sPES added membranes was changed into a highly asymmetric structure. The active layer grew and mean pore size was decreased by addition of sPES. However, the water flux of PSF/sPES/DMF/PVP/BE membrane was higher than that of PSF/DMF/PVP/BE membrane.
Keywords
phase inversion; microfiltration; sulfonated polyethersulfone; polysulfone;
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Times Cited By KSCI : 1  (Citation Analysis)
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