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Studies on ultrafiltration membranes. I. Development of cellulose nitrate membranes
Author(s) -
Rao A. V.,
Mehta D. J.
Publication year - 1978
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1978.070221220
Subject(s) - membrane , ultrafiltration (renal) , solvent , cellulose , chemical engineering , methanol , permeability (electromagnetism) , nitrate , ether , chemistry , materials science , regenerated cellulose , chromatography , polymer chemistry , organic chemistry , biochemistry , engineering
Ultrafiltration membranes were prepared from cellulose nitrate under different conditions and were characterized using a solution of 1.0% dextran‐150 having a salinity of 1500 ppm. The role of various parameters such as polymer concentration, ratio of ether to alcohol, methanol as the solvent, and other additives is systematically studied and presented. Similarly, the effect of operational and hydraulic parameters on the membrane performance is evaluated and the minimum activation energy for the solvent permeability is experimentally deduced.