Premium
Preparation and testing of polyvinyl alcohol composite membranes for reverse osmosis
Author(s) -
Lang K.,
Matsuura T.,
Chowdhury G.,
Sourirajan S.
Publication year - 1995
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450730512
Subject(s) - polysulfone , polyvinyl alcohol , membrane , thin film composite membrane , permeation , polyvinyl chloride , chemical engineering , reverse osmosis , materials science , composite number , sodium , nanofiltration , solvent , chromatography , polymer chemistry , chemistry , composite material , organic chemistry , biochemistry , engineering , metallurgy
Thin film composite membranes were prepared by coating porous polysulfone membranes with a polyvinyl alcohol layer and further cross‐linking its surface. The thin layer of cross‐linked polyvinyl alcohol served as a selective membrane. The membranes were prepared under various conditions and tested for sodium chloride separation. A high sodium chloride separation was achieved but the permeation rate was low compared with commercially available thin film composite membranes. Resistance against the flow of solvent water and sodium chloride solute were determined for individual component barrier layers.