Mesophase pitch prepared from aromatic hydrocarbons with the use of HF/BF3

Isao Mochida, Kiyoyuki Shimizu, Yozo Korai, Yukio Sakai, Susumu Fujiyama

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


New methods are described for the catalytic and thermal preparation of mesophase pitches from naphthalene and anthracene with the use of HF/BF3. Detailed analysis of FT-IR, FD-Mass, 1H-NMR, and 13C-NMR spectra of the pitches indicate a high level of naphthenic hydrogen which assists oxidation during stabilization. The naphthalene mesophase pitches possessed good spinning properties to produce carbon fibres 8-12 μm in diameter, with a tensile strength σT = 2.5 GPa and a tensile modulus ET = 280 GPa, increasing to σT = 3.5 GPa and ET = 800 GPa after graphitization. The ease with which properties such as fluidity, solubility, and softening-point temperature can be controlled and the use of recyclable catalysts enable the production of high-quality carbon fibres at resonable cost.

Original languageEnglish
Pages (from-to)671-683
Number of pages13
JournalHigh Temperatures - High Pressures
Issue number6
Publication statusPublished - 1990

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Physical and Theoretical Chemistry


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