Effect of vapor-induced phase separation on the morphology and separation performance of polysulfone hollow fiber membranes

摘要

The applicability of a membrane technique to a separation process strongly depends on whether the membrane possessing suitable separation performance can be successfully prepared.Among the methods for preparation of membranes,the most widely used one is the phase inversion method.There are several methods to induce phase separation during membrane forming,such as thermally induced phase separation(TIPS),nonsolvent induced phase separation(NIPS),and vapor-induced phase separation(VIPS).