ACRYL-BASED CARBON FIBER BUNDLE EXHIBITING EXCELLENT COMPOSITE PROPERTY, AND ITS MANUFACTURE

    公开(公告)号:JPS60239521A

    公开(公告)日:1985-11-28

    申请号:JP9454384

    申请日:1984-05-14

    Abstract: PURPOSE:To obtain the titled fiber bundle having remarkably improved utilization of the tensile strength of a composite and giving a composite material having high physical properties, by electrolyzing an acrylic carbon fiber bundle having high tensile strength of the strand and high elastic modulus under specific condition. CONSTITUTION:An acrylic carbon fiber bundle having a friction coefficient of 0.07-0.27, a tensile strength of strand of >=410kg/mm. and an elastic modulus of 23-35t/mm. is electrolyzed at an electric current density of 1.1-10A/m and a surface treatment energy of 0.05-2.9W.min/g, to obtain the objective fiber bundle having a friction coefficient of 0.1-0.3, the content of the oxygen-containing functional group at the surface of the carbon fiber (O1s/C1s) of 0.07-0.25 measured by X-ray photoelectric spectrometry, a strand tensile strength of >=410kg/ mm. and an elastic modulus of 23-35t/mm. . The acrylic carbon fiber used as the raw material is preferably obtained by producing an acrylic fiber by wet- spinning, and subjecting the fiber to the flame-resistant treatment and the carbonization treatment.

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