POLYAMIDE WATER-TREATMENT SEPARATION MEMBRANE HAVING PROPERTIES OF HIGH SALT REJECTION AND HIGH FLUX AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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Dec 10, 2015
app pub date -
Jun 18, 2014
filing date -
Jun 18, 2013
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The present disclosure provides a method of manufacturing a water-treatment separation membrane having improved salt rejection rate and permeable flux properties, the method including: forming an aqueous solution layer containing an amine compound on a porous support; forming a polyamide active layer by bringing an organic solution containing an acyl halide compound and a first organic solvent into contact with the aqueous solution layer; and coating a second organic solvent having a degree of volatility lower than that of the first organic solvent on the polyamide active layer, and a water-treatment separation membrane manufactured by the manufacturing method.
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