POLYAMIDE WATER-TREATMENT MEMBRANES HAVING PROPERTIES OF HIGH SALT REJECTION AND HIGH FLUX AND MANUFACTURING METHOD THEREOF

摘要

The present invention provides a method for preparing a porous support, comprising: forming an aqueous solution layer containing an amine compound on a porous support; Contacting the aqueous solution layer with an organic solution containing an acyl halide compound and a first organic solvent to form a polyamide active layer; And applying a second organic solvent having a smaller volatility than the first organic solvent on the polyamide active layer, thereby improving the salt removal rate and the permeation flow rate, and a process for producing the water treatment membrane produced by the process will be.