Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Performance Evaluation of Heat Radiant for 50W LED by the CNT Thermal Interface Material

CNT 열전달 물질에 의한 50W LED의 방열 성능평가

  • Cho, Young-Tae (Department of Manufacturing Technology & Design Engineering, Jeonju UNIV.) ;
  • Lee, Choong-Ho (Department of Manufacturing Technology & Design Engineering, Jeonju UNIV.)
  • 조영태 (전주대학교 기술융합디자인학과) ;
  • 이충호 (전주대학교 기술융합디자인학과)
  • Received : 2014.12.16
  • Accepted : 2014.12.26
  • Published : 2014.12.31
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Abstract

In this study, cooling and heat-transfer tests are performed to compare and evaluate the thermal conductivity in a prepared CNT TIM (thermal interface material). A polymerized CNT heat-transfer resin and commercial thermal grease (Shinetsu G-747) were applied for a comparison test in both cases. Cooling experiments with an aluminum foil specimen were performed in order to measure the temperature distribution using an infrared camera, and in heat radiation experiments, performance testing of the thermal conductivity was conducted using high-power LEDs. Carbon resin with the polymerization of graphite and carbon black, and CNT-polymerized CNT resin with graphite and carbon black were tested and compared with using G-747. It was found that the cooling performance and the heat transfer ability in both the carbon resin and the CNT-polymerized CNT resin were greater than those of G-747 because the temperature by 5. $0^{\circ}C$ in both cases appeared lower than that of the G-747.

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