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Effects of Dry-Jet Wet Spinning Parameters on Properties of Polysulfone Hollow Fiber Membranes

Authors :
Alexey Volkov
Ilya L. Borisov
Vladimir Volkov
V. P. Vasilevskii
D. N. Matveev
Source :
Russian Journal of Applied Chemistry. 93:554-563
Publication Year :
2020
Publisher :
Pleiades Publishing Ltd, 2020.

Abstract

The influence of parameters of the dry-jet wet spinning process was studied on properties of porous polysulfone hollow fiber membranes. The air gap distance, the dope extrusion pressure, bore fluid pressure and temperature were chosen as the studied parameters. Their effect on the geometric and morphological properties of membranes was investigated. The optimal parameters were revealed for the formation of polysulfone hollow fiber membranes, promising for use as porous supports of composite membranes. High gas permeability were achieved with pore sizes providing the Knudsen flow regime: carbon dioxide permeability P/l(CO2) = 48.3 m3 m–2 h–1 atm–1, and values of ideal selectivity α = 2.63 and 0.87 for He/CO2 and CO2/N2 gas pairs, respectively.

Details

ISSN :
16083296 and 10704272
Volume :
93
Database :
OpenAIRE
Journal :
Russian Journal of Applied Chemistry
Accession number :
edsair.doi...........e64da01b5f0099e4f56aaf7b38119325
Full Text :
https://doi.org/10.1134/s1070427220040102