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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2014.24.4.311

Effects of Cross-linking Agents on the Acetic Acid Dehydration Behaviors of PVA-PAN Composite Hollow Fiber Membranes  

Kang, Su Yeon (Department of Chemical Engineering, Hannam University)
Kim, Ji Seon (Department of Chemical Engineering, Hannam University)
Cho, Eun Hye (Department of Chemical Engineering, Hannam University)
Rhim, Ji Won (Department of Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.24, no.4, 2014 , pp. 311-316 More about this Journal
Abstract
The polyacrylonitrile (PAN) hollow fiber composite membranes were prepared and their pervaporation performance was tested to concentrate the acetic acid aqueous solution. The coating of the composite membranes were confirmed by SEM images and the coating thickness was averagely $3.85{\mu}m$. As the crosslinking agent and the crosslinking temperature increase, the permeability decreases while the separation factor increases. Typically, the permeability $250g/m^2{\cdot}hr$ and the separation factor 13 were obtained for glutaraldehyde 13 wt% as the crosslinking agent and crosslinking temperature $140^{\circ}C$. And for the use of another crosslinking agent, poly (acrylic acid) 9 wt% and crosslinking temperature $140^{\circ}C$, the permeability $330g/m^2{\cdot}hr$ and separation factor 9 were obtained.
Keywords
water-acetic acid; pervaporation; polyacrylonitrile; glutaaldehyde; poly(acrylic acid);
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