A review of heat treatment on polyacrylonitrile fiber

Muhammad Syukri Abd Rahaman, A. F. Ismail, A. Mustafa

Research output: Contribution to journalArticle

725 Citations (Scopus)

Abstract

Developing carbon fiber from polyacrylonitrile (PAN) based fiber is generally subjected to three processes namely stabilization, carbonization, and graphitization under controlled conditions. The PAN fiber is first stretched and simultaneously oxidized in a temperature range of 200-300 °C. This treatment converts thermoplastic PAN to a non-plastic cyclic or a ladder compound. After oxidation, the fibers are carbonized at about 1000 °C in inert atmosphere which is usually nitrogen. Then, in order to improve the ordering and orientation of the crystallites in the direction of the fiber axis, the fiber must be heated at about 1500-3000 °C until the polymer contains 92-100%. High temperature process generally leads to higher modulus fibers which expel impurities in the chain as volatile by-products. During heating treatment, the fiber shrinks in diameter, builds the structure into a large structure and upgrades the strength by removing the initial nitrogen content of PAN precursor and the timing of nitrogen. With better-controlled condition, the strength of the fiber can achieve up to 400 GPa after this pyrolysis process.

Original languageEnglish
Pages (from-to)1421-1432
Number of pages12
JournalPolymer Degradation and Stability
Volume92
Issue number8
DOIs
Publication statusPublished - Aug 2007
Externally publishedYes

Fingerprint

polyacrylonitrile
Polyacrylonitriles
heat treatment
Heat treatment
fibers
Fibers
Nitrogen
nitrogen
Graphitization
inert atmosphere
graphitization
carbonization
Ladders
Carbonization
carbon fibers
Crystallites
ladders
Crystal orientation
Thermoplastics
crystallites

Keywords

  • Carbon fiber
  • Carbonization
  • Heat treatment
  • Polyacrylonitrile
  • Stabilization

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

A review of heat treatment on polyacrylonitrile fiber. / Abd Rahaman, Muhammad Syukri; Ismail, A. F.; Mustafa, A.

In: Polymer Degradation and Stability, Vol. 92, No. 8, 08.2007, p. 1421-1432.

Research output: Contribution to journalArticle

Abd Rahaman, Muhammad Syukri ; Ismail, A. F. ; Mustafa, A. / A review of heat treatment on polyacrylonitrile fiber. In: Polymer Degradation and Stability. 2007 ; Vol. 92, No. 8. pp. 1421-1432.
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