Evaluation of naphthalene-derived mesophase pitches as a binder for carbon-carbon composites

Ryuji Fujiura, Takashi Kojima, Koichi Kanno, Isao Mochida, Yozo Korai

研究成果: ジャーナルへの寄稿記事

25 引用 (Scopus)

抄録

Binding properties of the mesophase pitches produced catalytically from naphthalene with HF/BF3 were examined in terms of their carbon value, fluidity, thermal stability and oxidative stabilization reactivity. The present pitches with 100% anisotrophy and low softening points of 207-275°C provided very high coke yields of 80-88 wt% under atmospheric pressure and 90-95 wt% under 30 atm. Pitches with softening points of 207 and 224°C exhibited strikingly low viscosity below 1 Pa{black diamond suit}s at 350°C. It is noted that viscosity-temperature profiles of a series of the present pitches cover the complete area of the processing window for the manufacture of carbon-carbon composites, whose processes typically include impregnation of mesophase pitch into a two-dimensional carbon fiber preform, oxidative stabilization and successive carbonizations. The pitches were thermally stable under nitrogen at 300°C, keeping the melt viscosity constant for longer than 100 h to assure easy handling. At the same time, they were very reactive for the oxidation in air at 200°C for rapid stabilization.

元の言語英語
ページ(範囲)97-102
ページ数6
ジャーナルCarbon
31
発行部数1
DOI
出版物ステータス出版済み - 1 1 1993

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Carbon carbon composites
Naphthalene
Binders
Stabilization
Viscosity
Fluidity
Carbonization
Impregnation
Coke
Atmospheric pressure
Carbon fibers
Diamonds
Thermodynamic stability
Nitrogen
Carbon
Oxidation
Processing
Air
naphthalene
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

これを引用

Evaluation of naphthalene-derived mesophase pitches as a binder for carbon-carbon composites. / Fujiura, Ryuji; Kojima, Takashi; Kanno, Koichi; Mochida, Isao; Korai, Yozo.

:: Carbon, 巻 31, 番号 1, 01.01.1993, p. 97-102.

研究成果: ジャーナルへの寄稿記事

Fujiura, R, Kojima, T, Kanno, K, Mochida, I & Korai, Y 1993, 'Evaluation of naphthalene-derived mesophase pitches as a binder for carbon-carbon composites', Carbon, 巻. 31, 番号 1, pp. 97-102. https://doi.org/10.1016/0008-6223(93)90161-3
Fujiura, Ryuji ; Kojima, Takashi ; Kanno, Koichi ; Mochida, Isao ; Korai, Yozo. / Evaluation of naphthalene-derived mesophase pitches as a binder for carbon-carbon composites. :: Carbon. 1993 ; 巻 31, 番号 1. pp. 97-102.
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abstract = "Binding properties of the mesophase pitches produced catalytically from naphthalene with HF/BF3 were examined in terms of their carbon value, fluidity, thermal stability and oxidative stabilization reactivity. The present pitches with 100{\%} anisotrophy and low softening points of 207-275°C provided very high coke yields of 80-88 wt{\%} under atmospheric pressure and 90-95 wt{\%} under 30 atm. Pitches with softening points of 207 and 224°C exhibited strikingly low viscosity below 1 Pa{black diamond suit}s at 350°C. It is noted that viscosity-temperature profiles of a series of the present pitches cover the complete area of the processing window for the manufacture of carbon-carbon composites, whose processes typically include impregnation of mesophase pitch into a two-dimensional carbon fiber preform, oxidative stabilization and successive carbonizations. The pitches were thermally stable under nitrogen at 300°C, keeping the melt viscosity constant for longer than 100 h to assure easy handling. At the same time, they were very reactive for the oxidation in air at 200°C for rapid stabilization.",
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AU - Fujiura, Ryuji

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AU - Kanno, Koichi

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AU - Korai, Yozo

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N2 - Binding properties of the mesophase pitches produced catalytically from naphthalene with HF/BF3 were examined in terms of their carbon value, fluidity, thermal stability and oxidative stabilization reactivity. The present pitches with 100% anisotrophy and low softening points of 207-275°C provided very high coke yields of 80-88 wt% under atmospheric pressure and 90-95 wt% under 30 atm. Pitches with softening points of 207 and 224°C exhibited strikingly low viscosity below 1 Pa{black diamond suit}s at 350°C. It is noted that viscosity-temperature profiles of a series of the present pitches cover the complete area of the processing window for the manufacture of carbon-carbon composites, whose processes typically include impregnation of mesophase pitch into a two-dimensional carbon fiber preform, oxidative stabilization and successive carbonizations. The pitches were thermally stable under nitrogen at 300°C, keeping the melt viscosity constant for longer than 100 h to assure easy handling. At the same time, they were very reactive for the oxidation in air at 200°C for rapid stabilization.

AB - Binding properties of the mesophase pitches produced catalytically from naphthalene with HF/BF3 were examined in terms of their carbon value, fluidity, thermal stability and oxidative stabilization reactivity. The present pitches with 100% anisotrophy and low softening points of 207-275°C provided very high coke yields of 80-88 wt% under atmospheric pressure and 90-95 wt% under 30 atm. Pitches with softening points of 207 and 224°C exhibited strikingly low viscosity below 1 Pa{black diamond suit}s at 350°C. It is noted that viscosity-temperature profiles of a series of the present pitches cover the complete area of the processing window for the manufacture of carbon-carbon composites, whose processes typically include impregnation of mesophase pitch into a two-dimensional carbon fiber preform, oxidative stabilization and successive carbonizations. The pitches were thermally stable under nitrogen at 300°C, keeping the melt viscosity constant for longer than 100 h to assure easy handling. At the same time, they were very reactive for the oxidation in air at 200°C for rapid stabilization.

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