Aging Property Studies on Rubber Gasket for Polymer Electrolyte Membrane Fuel Cell Stack

고분자 전해질 연료전지 스택용 고무 개스킷의 노화특성 연구

  • Kang, Dong-gug (Research & Development Institute, Pyung-hwa Oil Seal Industry Co. LTD.) ;
  • Hur, Byung-ki (Research & Development Institute, Pyung-hwa Oil Seal Industry Co. LTD.) ;
  • Lee, Dong-won (PCK Industry Co. Ltd.) ;
  • Seo, Kwan-ho (Department of Polymer Science, Kyungpook National University)
  • 강동국 (평화오일씰공업(주) 기술개발본부) ;
  • 허병기 (평화오일씰공업(주) 기술개발본부) ;
  • 이동원 (피시케이(주)) ;
  • 서관호 (경북대학교 고분자공학과)
  • Received : 2010.11.02
  • Accepted : 2011.02.07
  • Published : 2011.04.10

Abstract

In order to explore properties of various rubber compounds after thermal aging under the condition similar to the operating environment of a fuel cell-stack, heat resistance and compression set of those compounds were investigated for a long term operation in $H_2SO_4$, $H_2O$, and LLC (ethylene glycol : $H_2O=50:50$) solution. It was assumed that aging Acrylonitrile butadiene rubber (NBR) and Elthylene Propylene diene rubber (EDPM) compound in the solution resulted in discoloration as time passed. It was also found that hydrolysis was developed on the Silicone rubber (VMQ) compound intentionally aged under acidic condition by means of TGA, SEM, and EDS analysis.

Keywords

fuel cell;gasket;stuck;aging;VMQ

Acknowledgement

Supported by : 한국산업기술진흥원, 대구 광역시

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