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Study on Performance of Water Vapor-Permeation Through Hydrophilic Polymer Membranes  

Rhim Ji-Won (Department of Chemical Engineering, Hannam University)
Yun Tae-Il (Department of Chemical Engineering, Hannam University)
Seo Moo-Young (Department of Chemical Engineering, Hannam University)
Cho Hyun-Il (Department of Chemical Engineering, Hannam University)
Ha Seong-Yong (AIRRANE Co., Ltd.)
Publication Information
Membrane Journal / v.16, no.2, 2006 , pp. 115-122 More about this Journal
Abstract
In this study the membrane preparation and water vapor permeation of the hydrophilic polymer materials, polyaminosiloxane and polyhydroxylsiloxane, used as the coating materials for the preparation of asymmetric flat and hollow fiber membranes were investigated. And the water vapor permeation towards air permeation and their permselectivity were intensively studied for the resulting Resin A/Resin C (coupling agent) and Resin B/Resin C membranes. The water vapor permeability for 3 wt% Resin C introduced into Resin A (Resin A/Resin C) membrane was higher than for 1 and 5 wt% membranes and also water vapor permeability increased with increasing operating temperatures. In addition, at this content of 3 wt% Resin C, the absorption capability became maximum through dynamic equilibrium absorption experiment. Water vapor permeability, 43578 Barrer (1 Barrer = $10^{-10}cm^3(STP){\cdot}cm/cm^2{\cdot}s{\cdot}cmHg$) and 53000 Barrer, and the selectivity of $P(H_2O)P(Air)$, 101.3 and 102.6 were shown at 25 and $35^{\circ}C$, respectively.
Keywords
polyaminosiloxane; polyhydroxylsiloxane; gas permeation; vapor permeation; dehumidification membrane;
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