Ismail, Ahmad Fauzi and Wan Abdul Rahman, Wan Aizan and R., Norida and T., Matsuura and S. A., Hashemifard (2010) Preparation and characterization of hyperthin-skinned and high performances asymmetric polyethersulfone membrane for gas separation. Desalination, 273 (1). pp. 93-104. ISSN 0011-9164
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Official URL: http://dx.doi.org/10.1016/j.desal.2010.10.015
Defect-free highperformancemembranes for O2/N2separation were prepared by coating the porous polyethersulphone (PES) membrane of hyperthin-skin layer with silicone rubber. The combined effects of fabrication parameters in dry/wet phase inversion process and of the casting dope rheology enabled improved of membraneperformance in O2 and N2separation, i.e. the optimum range was found to be from 149 to 447 s- 1 and 10 to 14 s, respectively, for the shear rate and the evaporation time to prepare the hyperthin-skinnedasymmetricpolyethersulfonemembranes. The optimum polymer concentration was 32 wt.% , 61 wt.% and 7 wt.% for PES, 1-methyl-2-pyrrolidone and water respectively. The thinnest skin layer thickness was 538 ± 95.6 Å. Evaporation time and casting shear have been identified as the dominant fabrication parameters in controlling skin layer thickness and skin integrity.
|Uncontrolled Keywords:||asymmetricmembrane, gasseparation, phase inversion, rheology, polyethersulfone|
|Subjects:||Q Science > QD Chemistry|
|Divisions:||Petroleum and Renewable Energy Engineering|
|Deposited By:||Liza Porijo|
|Deposited On:||18 Jul 2012 03:36|
|Last Modified:||13 Feb 2017 01:12|
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