Modeling of asymmetric membrane formation by a combination of dry/wet phase inversion processes

摘要

The invention of asymmetric polymer membranes by Loeb and Sourirajan has caused an enormous growth in the field of membrane science and technology.Application areas range from chemical,biomedical to biotechnology industries.Asymmetric membranes are mostly fabricated by a process called phase inversion which can be achieved through four principal methods:immersion precipitation (wet phase inversion),vapor-induced phase separation,ther-mally induced phase separation and dry-casting.