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Korean Carbon Society (한국탄소학회)
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A Study of Partial Carbonisation for the Development of Pitch Based Carbon Fibres

  • Aggarwal, R.K. (Carbon Technology Unit, Division of Engineering Materials, National Physical Laboratory) ;
  • Bhatia, G. (Carbon Technology Unit, Division of Engineering Materials, National Physical Laboratory) ;
  • Raman, V. (Carbon Technology Unit, Division of Engineering Materials, National Physical Laboratory) ;
  • Saha, M. (Carbon Technology Unit, Division of Engineering Materials, National Physical Laboratory) ;
  • Mishra, A. (Carbon Technology Unit, Division of Engineering Materials, National Physical Laboratory)
  • Received : 2004.02.02
  • Accepted : 2004.03.15
  • Published : 2004.03.30
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Abstract

A study of partial carbonisation of green pitch fibres to temperatures in the range of 500-$1000^{\circ}C$ was carried out on three precursors - a neat pitch and two polymer modified pitches, with a view to find out a suitable temperature at which the fibres acquire considerably improved toughness or handleability (compared to that in the green stage) for their subsequent processing into carbon fibres. A partial carbonisation temperature of 500-$600^{\circ}C$ has been identified to result in a remarkable improvement in the toughness/handleability of the fibres in all the three cases. However, from techno-economical considerations, the neat pitch appears to provide the best precursor system for the production of pitch based carbon fibres.

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