Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical properties of conducting polymer PTCR containing carbon powders

탄소분말을 함유한 도전성 고분자 PTCR의 전기적 특성

  • Kim, Kyung-Jong (School of Materials Science & Engineering, University of Ulsan) ;
  • Lee, Jae-Won (School of Materials Science & Engineering, University of Ulsan) ;
  • Kim, Young-Hyeok (School of Materials Science & Engineering, University of Ulsan) ;
  • Kim, Sung-Hoon (School of Materials Science & Engineering, University of Ulsan) ;
  • Choi, Mun-Seok (School of Materials Science & Engineering, University of Ulsan) ;
  • Lee, Jae-Shin (School of Materials Science & Engineering, University of Ulsan)
  • 김경종 (울산대학교 첨단소재공학부) ;
  • 이재원 (울산대학교 첨단소재공학부) ;
  • 김영혁 (울산대학교 첨단소재공학부) ;
  • 김성훈 (울산대학교 첨단소재공학부) ;
  • 최문석 (울산대학교 첨단소재공학부) ;
  • 이재신 (울산대학교 첨단소재공학부)
  • Published : 2006.06.22
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Abstract

We investigated the electrical properties of polymer-carbon composite materials for temperature sensitive resistor applications. Cu/polymer/Cu sheets were fabricated by laminating low density polyethylene(LDPE) containing carbon powders. Weight ratio of carbon powder to LDPE was varied in a range of 0.9~2. With increasing the carbon concentration, the electrical resistance of the composite material was decreased from 0.75 to $0.08\;{\Omega}cm$. The composite layer showed a abrupt increase in the electrical resistance at $115^{\circ}C$ because of the softening of the polymer.

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