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Prepration of Hydoxy Polyimde Membranes and Their Carbon Dioxide Permeation Property  

Woo, Seung-Moon (School of Materials Science and Engineering, Engineering Research Institute, I-Cube Center, Gyeongsang National University)
Choi, Jong-Jin (School of Materials Science and Engineering, Engineering Research Institute, I-Cube Center, Gyeongsang National University)
Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, I-Cube Center, Gyeongsang National University)
Publication Information
Membrane Journal / v.22, no.2, 2012 , pp. 128-134 More about this Journal
Abstract
In this study, hydroxy polyimide (HPI) was prepared for non-porous membrane by solvent evaporation method. As the result of gas permeance properties measurement, $CO_2$ permeability was 85 Barrer and the $CO_2/N_2$ selectivity was 23 at $30^{\circ}C$. Flat sheet membrane and hollow fiber membrane were prepared by using ternary system of polymer, solvent and non-solvent additive. Morphologies and gas permeance properties were measured by FE-SEM and bubble flow meter. Each $CO_2$ permeability of 18.28 GPU, 70 GPU and $CO_2/N_2$ selectivity of 6.72, 8.63 at $30^{\circ}C$ in the flat sheet membrane and hollow fiber membrane. Hollow fiber membrane has gas permeance property better than flat sheet membrane.
Keywords
hydoxy polyimide; gas separation; hollow fiber membrane; carbon dioxide;
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Times Cited By KSCI : 3  (Citation Analysis)
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