Title:
SELF-ASSEMBLED CARBON FIBER BUNDLE AND PRODUCTION METHOD OF THE SAME, AND PREPREG AND PRODUCTION METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2023040051
Kind Code:
A
Abstract:
To provide a novel technique for easily producing a short-length carbon fiber bundle having a bundle size smaller than that of continuous carbon fiber bundle, using the continuous carbon fiber bundle as raw material, a technique for producing a carbon fiber bundle easy to use as a reinforcing material for FRP from a carbon fiber recovered from waste of a CFRP or remnants of a prepreg, a novel reinforcing material for a heat-curable prepreg, and a novel heat-curable prepreg using SACFB as a reinforcing material and a production method of the same.SOLUTION: A prepreg comprises a heat-curable resin composition, and a self-assembled carbon fiber bundle impregnated with the heat-curable resin composition, where all of the carbon fibers contained in the self-assembled carbon fiber bundle has a fiber length of 60 mm or shorter, 40 mm or shorter, 30 mm or shorter, or 20 mm or shorter.SELECTED DRAWING: None
Inventors:
Katsushi Ikeda
Kazuki Tsujikawa
Ken Ishikawa
Jun Matsui
Kazuki Tsujikawa
Ken Ishikawa
Jun Matsui
Application Number:
JP2022204463A
Publication Date:
March 22, 2023
Filing Date:
December 21, 2022
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08J5/04; D02G3/16; D02G3/40
Attorney, Agent or Firm:
Tsuyoshi Shigeno
Takayuki Shigeno
Takayuki Shigeno
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