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Gas Permeation Properties of Ethylene Vinyl Acetate/Co-Al Layered Double Hydroxide Nanocomposite Membranes  

Kang, Sung-Young (Department of Industrial Chemistry, Sang Myung University)
Lee, Hyuu-Kyung (Department of Industrial Chemistry, Sang Myung University)
Publication Information
Membrane Journal / v.20, no.4, 2010 , pp. 290-296 More about this Journal
Abstract
Ethylene vinyl acetate (EVA-28)/Co-Al LDH nanocomposite membranes were prepared by solution intercalation using organically modified LDH. LDH was made organophilic by the intercalation of dodecyl sulfate (DS) anion in the interlayer. The prepared membranes were characterized using XRD, FT-IR and SEM. Gas permeability of EVA/LDH nanocomposite membranes with LDH content of 1, 3, and 5 w% was studied for $O_2$ and $CO_2$ at pressure of 3, 4, and 5 bar. The permeability of $O_2$ and $CO_2$ was minimum for nanocomposite membrane with 1 wt% LDH and increased with increasing LDH content, which is presumably due to aggregation of LDH filler. The selectivity of $CO_2$ for $O_2$ showed the maximum value at 1 wt% of LDH content and decreased thereafter.
Keywords
Co-Al LDH; DS-LDH; EVA/Co-Al LDH; nanocomposite membrane; permeability;
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Times Cited By KSCI : 3  (Citation Analysis)
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