화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.27, No.11, 1161-1166, November, 2019
DOI10.1007/s13233-019-7156-7  Export Citation
High-Performance Fluorinated Ethylene-Propylene/Graphite Composites Interconnected with Single-Walled Carbon Nanotubes
Ho-Joon Park, Jong Seok Woo1, Sang Ha Kim, Kwang Sang Park1, Sung Hoon Park1, and Soo-Young Park†
  • Department of Polymer Science & Engineering, Polymeric Nanomaterials Laboratory, School of Applied Chemical Engineering, Kyungpook University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea
  • 1Advanced Center of Engineering, Morgan Advanced Materials, 23, Dalseong2cha 4-ro, Guji-myeon, Dalseong-gun, Daegu 43013, Korea
E-mail:
Herein, we report a novel method for the fabrication of highly conductive fluorinated ethylene-propylene (FEP)/graphite nanocomposites for high-temperature bipolar plates (BPs) by incorporating the well-dispersed single-walled carbon nanotube (SWCNT) as a secondary filler in the FEP matrix. The SWCNTs were pre-dispersed with FEP powder by sonication in ethanol and subsequently mixed with graphite powder by ball milling. The composite BPs were prepared from the mixed powder by compression molding. The resulting FEP/graphite/SWCNT nanocomposite containing 80 wt% graphite (500 μm particles) and 0.1 wt% SWCNT exhibited high electrical conductivity (210 S cm-1) superior to that of the composite devoid of SWCNTs (120 S cm-1) by modulating the electrical transportation pathways between graphite particles through the SWCNTs. A small amount of the incorporated SWCNTs (0.1 wt%) also improved chemical inertness to phosphoric acid. Hence, the prepared FEP/graphite nanocomposites with SWCNTs as a secondary filler exhibited a robust performance for application as high-temperature BPs for phosphoric acid fuel cells.
Keywords:graphite;single-walled carbon nanotube;fluorinated ethylene-propylene;bipolar plate;phosphoric acid fuel cell
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