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Effect of stabilization temperature on gas permeation properties of carbon hollow fiber membrane
Author(s) -
Wan Salleh Wan Norharyati,
Ismail Ahmad Fauzi
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.37621
Subject(s) - polyetherimide , permeation , polyvinylpyrrolidone , materials science , chemical engineering , membrane , polymer , hollow fiber membrane , fourier transform infrared spectroscopy , carbonization , fiber , scanning electron microscope , polymer chemistry , chemistry , composite material , biochemistry , engineering
Carbon hollow fiber membranes (CHFMs) derived from polymer blend of polyetherimide (PEI) and polyvinylpyrrolidone (PVP) were extensively prepared through stabilization under air atmosphere followed by carbonization under N 2 atmosphere. The effects of the stabilization temperature on the morphological structure, chemical structure, and gas permeation properties were investigated thoroughly by means of scanning electron microscopy, Fourier transform infrared spectroscopy, and single gas permeation system. The experiment results indicate that the transport mechanism of small gas molecules of N 2 , CO 2 , and CH 4 is dominated by the molecular sieving effect. Based on morphological structure and gas permeation properties, an optimum stabilization condition for the preparation of CHFM derived from PEI/PVP was found at 300°C under air atmosphere. The selectivity of ˜55 and 41 for CO 2 /CH 4 and CO 2 /N 2 , respectively, were obtained for CHFMs prepared at stabilization temperature of 300°C. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013