POLYAMIDE COMPOSITE REVERSE OSMOSIS MEMBRANE AND METHOD OF PRODUCING THE SAME

摘要

PURPOSE: A polyamide composite reverse osmosis membrane which can be used in industrial water purification plant used for changing seawater to freshwater and domestic water purifier is provided to get a large amount of quantity of water and the high removing rate of salinity even in the condition of low pressure. CONSTITUTION: By mixing water solution which contains multi-functional amine on the porous support and the solution of organic solvent containing amine reacted compound selected from multi-functional acyl halide, multi-functional sulfonyl halide and multi-functional isocyanate, polyamide reverse osmosis membrane composite can be produced. The water solution contains the mixture of the ternary multi-functional amine base which is produced by mixing the ternary multi-functional amine and acid with the rate of 1:0 to 1:1 by mole and the free ternary multi-functional amine.