Gas permeability and permselectivity of plasma‐treated polypropylene membranes |
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| Authors: | T. Teramae H. Kumazawa |
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| Affiliation: | Department of Chemical Process Engineering, University of Toyamay, 3190 Gofuku, Toyama 930‐8555, Japan |
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| Abstract: | The effects of NH3‐plasma and N2‐plasma treatment on rubbery polypropylene (PP) membrane upon permeation behavior for CO2, O2, and N2 were investigated from their permeability measurements. The NH3‐plasma and N2‐plasma treatment on PP membranes could increase both the permeability coefficient for CO2 and the ideal separation factor for CO2 relative to N2. For O2 transport, both the permeability coefficient for O2 and the ideal separation factor for O2 relative to N2 also increased. NH3‐plasma and N2‐plasma treatment on PP membranes possibly brings about an augmentation of permeability for CO2 and permselectivity of CO2 relative to N2 simultaneously, but unfortunately the plasma‐treated PP membrane does not reach the level of CO2 separation membrane. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 |
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| Keywords: | carbon dioxide polypropylene membrane plasma modification permeability coefficient ideal separation factor |
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