| 摘要 |
A manufacturing method of ultrafiltration and microfiltration membranes with enhanced permeation rate and excellent contamination resistance by mixing nano-clay with a polymer solution and manufacturing a filtration membrane by a phase inversion process, thereby hydrophilizing a hydrophobic membrane in a simple and economical manner is provided. A method of manufacturing asymmetric ultrafiltration and microfiltration membranes comprises the steps of: (A) adding nano-clay to a polymer solution selected from polysulfone, polyether sulfone, polyvinylidene fluoride, polyacrylonitrile and polyamide; and (B) coating a mixed solution of the polymer solution and the nano-clay on a non-woven fabric to manufacture a membrane. The nano-clay is added in an amount of 0.01 to 5 wt.% with respect to the polymer.
|
