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A Study on the Thermal Properties of CNT reinforced Semiconductive Shield Materials Used in Power Cables

  • Yang, Hoon (Department of Electrical Electronic and Information Engineering, Wonkwang University) ;
  • Bang, Jeong-Hwan (Department of Environmental Health, Seonam University) ;
  • Chang, Hong-Soon (Department of Knowledge-based Technology and Energy, Korea Polytechnic University) ;
  • Nah, Chang-Woon (BK-21 Polymer BIN Fusion Research Team, Chonbuk National University) ;
  • Park, Dae-Hee (Department of Electrical Electronic and Information Engineering, Wonkwang University)
  • Published : 2008.03.01

Abstract

Use of the carbon nanotube is superior to general powder state materials of mechanical and electrical properties. Because its ratio of diameter and length (aspect ratio) is very large, it has been known as a type of ideal nano-reinforcement material. Based on this advantage, the existing carbon black of semiconductive shield materials used in power cables can acquire excellent properties by using a small amount of carbon nanotubes. Thus, we investigated the thermal properties of the carbon nanotube, such as thermal conductivity, specific heat, and DSC (Differential Scanning Calorimetry). We found that a high thermal resistance level is demonstrated by using a small amount of carbon nanotubes. As a result, this tendency confirms high cross-linking density in a new network in which the carbon nanotube between carbon black constitute molecules shows a bond by similar constructive properties.

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