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Title:
PRODUCTION METHOD FOR PRECURSOR FIBRE FOR OBTAINING HIGH-STRENGTH AND HIGH ELASTIC MODULUS CARBON FIBRE
Document Type and Number:
WIPO Patent Application WO/2011/102400
Kind Code:
A1
Abstract:
Disclosed is a production method for a precursor fibre which enables the production of a carbon fibre having high strength and high elastic modulus. The disclosed production method includes: a step for preparing a solution of amphoteric molecule dimethylformamide, dimethyl sulfoxide or dimethyl acetamide; a step for preparing a carbon nanotube dispersion liquid by adding carbon nanotubes to the amphoteric molecule acetamide solution, and dispersing the carbon nanotubes; a step for preparing a spinning dope by mixing the carbon nanotube dispersion liquid and a polyacrylonitrile polymer; a step for obtaining a coagulated yarn from the spinning dope by means of a wet or dry spinning method; and a step for obtaining a precursor fibre for a carbon fibre by drawing out the coagulated yarn.

Inventors:
NISHIMURA, Hirokazu (1-1 Katata 2-chome, Ohtsu-sh, Shiga 92, 〒5200292, JP)
西村 浩和 (〒92 滋賀県大津市堅田二丁目1番1号 東洋紡績株式会社 総合研究所内 Shiga, 〒5200292, JP)
HIRAO, Koichi (1-1 Katata 2-chome, Ohtsu-sh, Shiga 92, 〒5200292, JP)
平尾 公一 (〒92 滋賀県大津市堅田二丁目1番1号 東洋紡績株式会社 総合研究所内 Shiga, 〒5200292, JP)
YAMAGUCHI, Shinsuke (1-1 Katata 2-chome, Ohtsu-sh, Shiga 92, 〒5200292, JP)
山口 信輔 (〒92 滋賀県大津市堅田二丁目1番1号 東洋紡績株式会社 総合研究所内 Shiga, 〒5200292, JP)
Application Number:
JP2011/053317
Publication Date:
August 25, 2011
Filing Date:
February 17, 2011
Export Citation:
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Assignee:
TOYO BOSEKI KABUSHIKI KAISHA (2-8 Dojimahama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目2番8号 Osaka, 〒5308230, JP)
JAPAN EXLAN COMPANY LIMITED (2-8 Dojimahama 2-chome, Kita-ku Osaka-sh, Osaka 04, 〒5300004, JP)
日本エクスラン工業株式会社 (〒04 大阪府大阪市北区堂島浜二丁目2番8号 Osaka, 〒5300004, JP)
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY (Kita 8-jyo Nishi 5-chome, Kita-ku Sapporo-sh, Hokkaido 08, 〒0600808, JP)
国立大学法人北海道大学 (〒08 北海道札幌市北区北8条西5丁目  Hokkaido, 〒0600808, JP)
NISHIMURA, Hirokazu (1-1 Katata 2-chome, Ohtsu-sh, Shiga 92, 〒5200292, JP)
西村 浩和 (〒92 滋賀県大津市堅田二丁目1番1号 東洋紡績株式会社 総合研究所内 Shiga, 〒5200292, JP)
HIRAO, Koichi (1-1 Katata 2-chome, Ohtsu-sh, Shiga 92, 〒5200292, JP)
International Classes:
D01F6/18; C01B31/02; D01F6/54; D01F9/22
Attorney, Agent or Firm:
KAZAHAYA, Nobuaki et al. (Shin-Ei Building 6th Fl, 6-20 Tosabori 1-chome, Nishi-ku, Osaka-sh, Osaka 01, 〒5500001, JP)
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Claims: