PREPREG
    8.
    发明公开
    PREPREG 审中-公开

    公开(公告)号:EP3225652A4

    公开(公告)日:2017-12-13

    申请号:EP15877063

    申请日:2015-12-25

    申请人: TORAY INDUSTRIES

    IPC分类号: C08J5/24 B29C70/02 C08L63/00

    摘要: Provided is a prepreg including: a fiber layer containing unidirectionally arranged carbon fibers impregnated with a thermosetting resin (1) ; and a resin layer disposed on at least one side of the fiber layer and containing a thermosetting resin (2) and a thermoplastic resin that is insoluble in the thermosetting resin (2). The prepreg is configured such that the areal weight of fibers and the weight fraction of resin in the prepreg are 120 to 300 g/m 2 and 25 to 50 mass%, respectively, and in the case where a plurality of prepregs are laid up, and the coefficient of interlayer friction is measured every 10°C in a temperature range of 40 to 100°C at a pull-out speed of 0.2 mm/min under a perpendicular stress of 0.8 bar, the temperature at which the coefficient of interlayer friction is 0.02 or less is present within a temperature range of 40 to 100°C. The prepreg exhibits high impact strength when formed into a fiber-reinforced plastic suitable for an aircraft structural member, and the prepreg also has excellent drapeability when a prepreg laminate is made conform to a three dimensional shape.