US EPA

1632407 

Journal Article 

Heat-treatment effect on the morphology and pervaporation performances of asymmetric PAN hollow fiber membranes 

Tsai, HA; Ciou, YS; Hu, CC; Lee, KR; Yu, DG; Lai, JY 

2005 

Yes 

Journal of Membrane Science
ISSN: 0376-7388 

255 

1-2 

33-47 

10.1016/j.memsci.2004.09.052 

WOS:000229517500004 

https://www.scopus.com/inward/record.uri?eid=2-s2.0-18544363122&doi=10.1016%2fj.memsci.2004.09.052&partnerID=40&md5=f55e69cc4cf730790aec6f6c13cf86f9
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The influence of heat-treatment conditions on the morphology
and pervaporation performances of aqueous isopropanol (IPA) solution through wet spinning
prepared polyacrylonitrile (PAN) hollow fiber membranes were investigated. At heat-treatment
temperature higher than 210° C, dehydrogenation and cyclization reaction of the PAN molecular
occurred during the heat-treatment process. The SEMs observation depicts that the morphology of
heat-treated PAN hollow fiber membranes was denser with increasing the heat-treatment
temperature. The permeation rate and water concentration in the permeate for a 90 wt.% aqueous
isopropanol solution through the heat-treated PAN hollow fiber membranes at 120° C for 12 h
were 186 g/m(2) h and 99.2 wt.%, respectively. © 2005 Elsevier B.V. All rights reserved. 

hollow fiber membrane; heat-treatment; cyclization; pervaporation