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Influence of Filler Particle Size on Behaviour of EPDM Rubber for Fuel Cell Vehicle Application under High-Pressure Hydrogen Environment

수소전기차용 EPDM 고무의 충전재 입자 크기별 고압 수소 환경에서의 거동 연구

  • KIM, KEEJUNG (Institute of Gas safety R&D, Korea Gas Safety Corporation) ;
  • JEON, HYEONG-RYEOL (Pyung Hwa Oil Seal Industry Co.,Ltd.) ;
  • KANG, YOUNG-IM (Pyung Hwa Oil Seal Industry Co.,Ltd.) ;
  • KIM, WANJIN (Institute of Gas safety R&D, Korea Gas Safety Corporation) ;
  • YEOM, JIWOONG (Institute of Gas safety R&D, Korea Gas Safety Corporation) ;
  • CHOI, SUNG-JOON (Institute of Gas safety R&D, Korea Gas Safety Corporation) ;
  • CHO, SUNGMIN (Institute of Gas safety R&D, Korea Gas Safety Corporation)
  • 김기정 (한국가스안전공사 가스안전연구원) ;
  • 전형렬 (평화오일씰공업) ;
  • 강영임 (평화오일씰공업) ;
  • 김완진 (한국가스안전공사 가스안전연구원) ;
  • 염지웅 (한국가스안전공사 가스안전연구원) ;
  • 최성준 (한국가스안전공사 가스안전연구원) ;
  • 조성민 (한국가스안전공사 가스안전연구원)
  • Received : 2020.09.18
  • Accepted : 2020.10.30
  • Published : 2020.10.30

Abstract

In this study, ethylene-propylene-diene monomer (EPDM) rubbers reinforced with various particle size of carbon black were prepared and tested. We followed recently published CSA/ANSI CHMC2 standard "the test methods for evaluating material compatibility in compressed hydrogen applications-polyemr". Measurement of change in hardness, tensile strength and volume were performed after exposure to maximum operating pressure, 87.5 MPa, for 168 hours (1 week). Once EPDM was exposed to high-pressure hydrogen, the samples experience volume increase and degradation of the physical properties. Also, after the dissolved hydrogen was fully eliminated from the specimens, the hardness and the tensile properties were not recovered. The rubber reinforced with smaller sizes of carbon black particles showed less volume expansion and decrease of physical properties. As a result, smaller particle size of carbon black filler led to more resistance to high-pressure hydrogen.

Keywords

References

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