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- W2383702166 abstract "In order to make ultrafiltration (UF) membrane, polysulfone (PS) is chosen as membrane material, NMP as solvent, and pure water as non-solvent. Experimental parameters such as the concentration of PS, polyvinylpyrrolidone and acetone, and the evaporating time of the solvent in the air are investigated by using orthogonal experiment. Based on the experiment results, it was found that the higher the concentration of PS, and the longer the time of solvent evaporating, the smaller the flux of pure water across membrane; and that the higher the concentration of acetone or polyvinylpyrrolidone, the larger the flux. The optimized conditions for PS support membrane preparation are as follows: PS concentration in casting solution (wt%) 14%; Evaporating time (s) 10; Acetone concentration in casting solution (wt%) 0.3%; Polyvinylpyrrolidone concentration(wt%) 0.25%. On the basis of conditions above, PS support membrane is made, and tested in the UF apparatus. The results show that there is a linear relationship between the pressure difference and the water flux, and that the retention to polyvinyl alcohol solution with concentration beyond 500ppm is more than 98%." @default.
- W2383702166 created "2016-06-24" @default.
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- W2383702166 date "2002-01-01" @default.
- W2383702166 modified "2023-09-23" @default.
- W2383702166 title "Preparation and Characterization of Polysulfone Ultrafiltration Membrane" @default.
- W2383702166 hasPublicationYear "2002" @default.
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