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The Membrane Society of Korea (한국막학회)
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Preparation and Characterizations of Ionomer-coated Pore-filled Ion-exchange Membranes for Reverse Electrodialysis

역전기투석 응용을 위한 이오노머가 코팅된 세공충진 이온교환막의 제조 및 특성분석

  • Kim, Do-Hyeong (Department of Environmental Engineering, Sangmyung University) ;
  • Kang, Moon-Sung (Department of Environmental Engineering, Sangmyung University)
  • Received : 2016.01.13
  • Accepted : 2016.02.19
  • Published : 2016.02.29
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Abstract

In this study, we have prepared engineering polymer-based ionomers and pore-filled ion-exchange membranes (PFIEMs) employing a porous polyethylene substrate and combined them to fabricate the ionomer-PFIEM composite membranes for the reverse electrodialysis (RED) application. Both the electrochemical properties comparable to those of the commercial ion-exchange membranes (AMX/CMX, Astom Corp., Japan) and the physical stability adaptable to the practical uses have been achieved by integrating the ionomers having a high ion conductivity and the PFIEMs with an excellent mechanical strength. The RED performances have been evaluated by employing the prepared ionomer-PFIEM composite membranes and therefore excellent power generation performances were shown as the levels of 86.4% and 104.8% for the anion-exchange membrane and cation-exchange membrane, respectively, compared with those of the commercial membranes.

본 연구에서는 역전기투석 응용을 위해 엔지니어링 고분자 기반의 이오노머와 다공성 폴리에틸렌 지지체를 사용한 세공충진 이온교환막을 제조하고 이를 결합한 이오노머-세공충진 복합막을 제조하였다. 이온전도도가 높은 이오노머와 우수한 기계적 강도를 가진 세공충진막을 결합함으로써 상용 이온교환막(AMX/CMX, Astom Corp., Japan) 대비 동등 수준의 전기화학적 특성 및 응용에 적합한 물리적 안정성을 확보할 수 있었다. 제조된 이오노머-세공충진 복합막을 이용하여 역전기투석 성능을 평가한 결과 상용막 대비 음이온 교환막의 경우 86.4%, 양이온 교환막은 104.8% 수준의 우수한 발전성능을 나타내었다.

Keywords

References

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