METHOD FOR PREPARING ASYMMETRIC ULTRAFILTRATION AND MICROFILTRATION MEMBRANES HAVING CHEMICAL, MICROBIAL AND FOULING RESISTANT BY BLENDING TITANIA NANO PARTICLE WITH POLYMER SOLUTION

摘要

PURPOSE: To prepare asymmetric ultrafiltration and microfiltration membranes having high flux rate with no deterioration on chemical, microbial and fouling resistant, by blending titania nano particles with polymer solution. CONSTITUTION: The method comprises steps of (a) adding 0.1 to 50 wt.% of titania nano particles having a diameter of 10 to 50 nanometers to a polymer solution selected from the group consisting of polysulfone, polyether sulfone, polyvinylidene fluoride, polyacrylonitrile and polyimide; and (b) coating the solution of the step (a) on a non woven fabric.