Journal of Industrial and Engineering Chemistry

  • Volume 30
  • /
  • Pages.127-133
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  • 2015
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  • 1226-086X(pISSN)
  • /
  • 1876-794X(eISSN)
The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Characteristics of a high compressive strength graphite foam prepared from pitches using a PVA-AAc solution

  • Kim, Ji-Hyun (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Lee, Young-Seak (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
  • Received : 2015.03.28
  • Accepted : 2015.05.12
  • Published : 2015.10.25
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Abstract

A facile method applied for preparing high-compressive-strength graphite foams in which pitch was added to a PVA-AAc (polyvinyl alcohol-acrylic acid) solution. Various amounts of pitch were added to a polymer solution to control the pore sizes and apparent densities of resulting foams. The pore size of graphite foam was reduced by increasing the slurry concentration, and its apparent density ranged from 0.12 to $0.61g/cm^3$. The graphite foam prepared using a hydrogel template had a high-compressive-strength of $7.90{\pm}1.02MPa$ and a thermal conductivity of $5.17{\pm}0.02W/mK$. The proposed method was applied successfully for high-compressive-strength graphite foams.

Keywords

Acknowledgement

Supported by : Agency for Defense Development

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