Processing and properties of polysulfone hollow fibre membranes for gas separation filled with sub-micron carbon fibres

Gordeyev, Sergey and Sharpe, Iain Douglas and Shilton, Simon (2001) Processing and properties of polysulfone hollow fibre membranes for gas separation filled with sub-micron carbon fibres. Macromolecular Symposia, 170 (1). pp. 273-281. ISSN 1022-1360 (https://doi.org/10.1002/1521-3900(200106)170:1<273...)

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Abstract

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.

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