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http://dx.doi.org/10.14478/ace.2017.1099

Gas Permeation of CO2 and N2 through PDMS-HNT and PDMS-mHNT Composite Membranes  

Lee, Seul Ki (Department of Chemistry, Sang Myung University)
Hong, Se Ryeong (College of General Studies, Sang Myung University)
Publication Information
Applied Chemistry for Engineering / v.29, no.1, 2018 , pp. 67-76 More about this Journal
Abstract
In this study, PDMS-HNT and PDMS-mHNT composite membranes were prepared by the addition of halloysite nanotube (HNT) and modified HNT (mHNT) to PDMS. To investigate the physico-chemical characteristics of composite membranes, analytical methods such as FT-IR, XRD, TGA, and SEM were utilized. The gas permeability and selectivity properties of $N_2$ and $CO_2$ were evaluated. In particular, the PDMS-HNT with 10 wt% HNT and PDMS-mHNT with 5 wt% mHNT showed the highest $CO_2/N_2$ selectivity and $CO_2$ permeability at $35^{\circ}C$, respectively. Overall, PDMS-HNT and PDMS-mHNT composite membranes improved the $CO_2/N_2$ selectivity compared to that of using PDMS membrane.
Keywords
PDMS; halloysite; mHNT; permeability; selectivity;
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