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Processing and properties of polysulfone hollow fibre membranes for gas separation filled with sub‐micron carbon fibres
Author(s) -
Gordeyev Sergey A.,
Sharpe Iain D.,
Shilton Simon J.
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200106)170:1<273::aid-masy273>3.0.co;2-r
Subject(s) - polysulfone , materials science , membrane , composite material , permeation , spinning , gas separation , filler (materials) , permeability (electromagnetism) , polymer , chemistry , biochemistry
Polysulfone hollow fibre membranes, of the type produced previously with enhanced gas separation properties, were filled with vapour grown carbon fibres (VGCF) of sub‐micron diameter. The effect of filler content on mechanical and gas permeation characteristics was studied. Hollow fibre membranes filled with up to 2.8 vol. % of VGCF were produced using forced convection dry jet/wet spinning. Fibre stiffness increased with increasing VGCF filler content. The fibres with the highest concentration of filler were about 30% more stiff than unfilled membranes. The addition of VGCF lead to a rise in permeability and some decrease in selectivity.