Effect of the pre-treated pyrolysis fuel oil: Coal tar pitch ratio on the spinnability and oxidation properties of isotropic pitch precursors and the mechanical properties of derived carbon fibers

Jinchang Liu, Hiroki Shimanoe, Jong Eun Choi, Seunghyun Ko, Young Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong Ho Yoon

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

Pitch precursors affording excellent spinnability, high-level oxidation-resistance, and good carbonization yields were prepared by bromination–dehydrobromination of various ratios of pyrolyzed fuel oil and coal tar pitch. The pitches exhibited spin-nabilities that were much better than those of pitches prepared via simple distillation. A pitch prepared using a 1:2 ratio of fuel oil and coal tar pitch exhibited the best tensile strength. Pitch fibers of diameter 8.9 ± 0.1 μm were stabilized at 270 °C without soaking time after heating at a rate of 0.5 °C/min and carbonized at 1100 °C for 1 h after heating at 5 °C/min. The resulting carbon fibers exhibited a tensile strength, elongation, Young’s modulus, and average diameter of 1700 ± 170 MPa, 1.6 ± 0.1%, 106 ± 37 GPa, and 7.1 ± 0.2 μm, respectively.

本文言語英語
ページ(範囲)193-202
ページ数10
ジャーナルCarbon Letters
29
2
DOI
出版ステータス出版済み - 4 2019

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • プロセス化学およびプロセス工学
  • 有機化学
  • 無機化学
  • 材料化学

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