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

PDMS-HNT과 PDMS-mHNT 복합막을 통한 CO2와 N2의 기체투과

  • Received : 2017.09.24
  • Accepted : 2017.11.27
  • Published : 2018.02.10

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

Acknowledgement

Supported by : 상명대학교

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