Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지
DOI QR코드

DOI QR Code

Mechanical Properties of EPDM Gasket after Long-Term Operations

EPDM 가스켓의 장시간 운전에 따른 기계적 성능변화

  • Received : 2011.07.16
  • Accepted : 2011.08.22
  • Published : 2011.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

Gasket plays an important role on sealing of the polymer electrolyte membrane fuel cell (PEMFC) stack. Stack requires gaskets in each cell to keep the hydrogen and air/oxygen within their respective regions. The failure of the gasket creates the problems of fuel leakage, mixing, damage on parts and can be a direct reason for the degrading the efficiency of fuel cell. The purpose of this paper researches on how mechanical properties of EPDM gasket in PEMFC are changed after long-term operations. The EPDM (ethylenepropylene-diene monomer) gaskets are obtained from the stack after long-term operations. DMA (dynamic mechanical analysis) is conducted to access the change of mechanical properties of the EPDM gasket. SEM/EDS (scanning electron microscope/energy dispersive spectroscopy) was used to show the surface topography and chemical characterization on the sample surface.

Keywords

References

  1. 조인수, 권오정, 김유, 현덕수, 박창권, 오병수, "저온영역에서 단열용기를 이용한 연료전지 모의 실험", 한국수소 및 신에너지학회논문집, Vol. 19, No. 5, 2008, pp. 403-409.
  2. Jinfeng Wu, Xiao Zi Yuan, Jonathan J. Martin, Haijiang Wang, Jiujun Zhang, Jun Shen, Shaohong Wu, Walter Merida, "A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies", Vol. 184, No. 1, 2008, pp. 104-119. https://doi.org/10.1016/j.jpowsour.2008.06.006
  3. 김대영, 김정민, 김헌영, "고분자 전해질 PEMFC 스택의 시일링 평가를 위한 체결 해석", Transactions of KSAE, Vol. 18, No. 5, 2010, pp. 68-75.
  4. Jinzhu Tan, Y.J. Chao, Haifeng Wang, Jianming Gong, J.W.Van Zee, "Chemical and mechanical stability of EPDM in a PEM fuel cell environment", Polymer Degradation and Stability, Vol. 94, No. 11, 2009, pp. 2072-2078. https://doi.org/10.1016/j.polymdegradstab.2009.07.009
  5. 허정무, 손영준, 박구곤, 김민진, 남기석, "연료전지 셀의 체결압력이 셀 내부 구성품에 미치는 영향", 대한기계학회 춘추학술대회, Vol. 2009, No. 2, 2009, pp. 652-654.
  6. Witold Brostow, "Dynamic Mechanical Analysis: a practical introduction", CRC Press, USA, 2007, pp. 71-75.