|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 6 of 8 found articles
| Title: |
Preparation and Characterization of Polyetherketone Hollow Fibre Membranes for Gas Separation |
| Author: |
Ying, S. Rogers-Gentile, V. Brown, P. J. |
| Appeared in: |
The journal of the Textile Institute |
| Paging: | Volume 90 (1999) nr. 3 pages 30-41 |
| Year: |
1999 |
| Contents: |
Hollow fibre membranes for gas separation have been spun from polyetherketone (PEK), using a dry-jet wet spinning procedure, and a range of hollow fibre morphologies have been produced. The general morphology of PEK hollow fibres could be described in terms of five zones: a thin dense outer skin, an interconnected outer macro-voided layer, a central sponge pore structure, an inner macro-voided layer, and an inner skin. The effects of some essential spinning parameters, i.e. air gap, water injection rate, and internal coagulant composition, have been investigated with respect to fibre morphology and gas permeation characteristics. As-spun PEK hollow fibre membranes show high hydrogen, carbon dioxide, and methane permeation rates, and low gas selectivity, which is characteristic of microporous membranes that undergo Knudsen diffusion. Silicone-coated fibres give higher separation factors but lower permeation rates, due to a change from Knudsen diffusion to the more selective solution-diffusion mechanism of permeation. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 6 of 8 found articles
| << previous | next >> |