| 摘要 |
PURPOSE:To provide the title compsn. having excellent flexural strength, flexural modulus, etc., consisting of a compd. having epoxy group, a specific high- molecular compd. (mixture) and carbon fiber having acidic functional group in the form of an alkali metal salt on the surface thereof. CONSTITUTION:Carbon fiber obtd. from PAN or pitch is subjected to a vapor phase oxidation treatment, electrolytic oxidation, liquid phase oxidation, etc. to form an acidic functional group such as COOH, OH,=O or lactone type functional group. The carbon fiber is then brought into contact with an alkaline substance such as NaOH, etc. to convert the functional group into an alkali metal salt, thus obtaining carbon fiber (B). A high-molecular compd. (A) having COOH groups or anhydride groups on its straight-chain or branched chain or a mixture (A) thereof with other high-molecular compd. such as a polyolefin is blended with 1-60wt.% component B and a compd. (C) having epoxy group and acting as a coupling agent between the components A and B.
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