HIGHLY PERMEABLE POLYAMIDE HOLLOW FIBER MEMBRANE AND METHOD OF PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a high-performance polyamide hollow fiber membrane which attains both high blocking performance and high liquid permeability, and a method of producing the same.;SOLUTION: In production of the polyamide hollow fiber membrane by means of heat induction phase separation, 20 mass% or more of a solvent which can dissolve a polyamide to be used in a coagulating bath at a temperature lower than the melting point of the polyamide is included. The hollow fiber membrane can attain high liquid permeability and blocking performance with an external pressure transmissibility of 500 L/m².atm.h or more and a 0.1 μm-particle blocking rate of 90% or more.;COPYRIGHT: (C)2012,JPO&INPIT