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    METAL-CARBON FIBER REINFORCED PLASTIC MATERIAL COMPOSITE AND PRODUCTION METHOD FOR METAL-CARBON FIBER REINFORCED PLASTIC MATERIAL COMPOSITE
    32.
    发明公开
    METAL-CARBON FIBER REINFORCED PLASTIC MATERIAL COMPOSITE AND PRODUCTION METHOD FOR METAL-CARBON FIBER REINFORCED PLASTIC MATERIAL COMPOSITE 审中-公开

    公开(公告)号：EP3808557A1

    公开(公告)日：2021-04-21

    申请号：EP19818808.8

    申请日：2019-06-14

    申请人： NIPPON STEEL CORPORATION

    发明人： KAWAMURA, Yasuaki ,  UEDA , Kohei ,  KOORI, Masumi

    IPC分类号： B32B15/08 ,  B32B27/00 ,  B32B27/38

    摘要： To provide a metal-carbon fiber reinforced plastic material (CFRP) composite that has excellent adhesion and adhesion durability at a member interface and a method of producing a metal-CFRP composite.
    The metal-CFRP composite according to the present invention includes: a metal member; a CFRP layer; and one or two layers of coating layers provided between the metal member and the CFRP layer. In the case where the coating layer consists of one layer, the coating layer is a coating layer containing an isocyanate group, and the matrix resin contains a phenoxy resin as a main component thereof, contains an epoxy group, and has bonds represented in (a structural formula 1) in the vicinity of an interface between the CFRP layer and the coating layer. In the case where the coating layer consists of two layers, the first coating layer that is located on the metal member side is a coating layer containing an isocyanate group, and the second coating layer that is located on the CFRP layer side is a coating layer that contains an epoxy resin as a main component thereof, and has bonds represented in (a structural formula 1) in the vicinity of an interface between the first coating layer and the second coating layer.

    PREPREG AND PRODUCTION METHOD THEREFOR, SLIT TAPE PREPREG, CARBON FIBER-REINFORCED COMPOSITE MATERIAL
    33.
    发明公开
    PREPREG AND PRODUCTION METHOD THEREFOR, SLIT TAPE PREPREG, CARBON FIBER-REINFORCED COMPOSITE MATERIAL 审中-公开

    公开(公告)号：EP3798254A1

    公开(公告)日：2021-03-31

    申请号：EP19826047.3

    申请日：2019-03-27

    申请人： Toray Industries, Inc.

    发明人： KOBAYASHI, Hiroshi ,  MAEYAMA, Taiki ,  KIDO, Daisuke ,  IKUSHIMA, Takashi ,  HOSOKAWA, Naofumi ,  OHNISHI, Hirokazu

    IPC分类号： C08J5/24 ,  B32B5/28 ,  B32B27/38 ,  C08L63/00

    摘要： The invention aims to provide a prepreg that has high processability and laminating performance and to provide a method to produce such a prepreg in an industrially advantageous way. A prepreg comprising at least the components [A] to [E] given below, having a structure incorporating a first layer composed mainly of the component [A] and a first epoxy resin composition that contains the components [B] to [D] but is substantially free of the component [E] and a second layer composed mainly of a second epoxy resin composition that contains the components [B] to [E] and disposed adjacent to each surface of the first layer,
    the second epoxy resin composition being characterized in that its component [D] has a weight-average molecular weight of 2,000 to 30,000 g/mol and accounts for 5 to 15 parts by mass relative to the total quantity of its components [B] to [E], which accounts for 100 parts by mass, and also characterized by having a storage elastic modulus G' at 25°C of 8.0 × 10 5 to 6.0 × 10 6 Pa as measured at an angular frequency of 3.14 rad/s, giving a value of 0.085 or more as calculated by the equation (1) given below, and showing a glass transition temperature of -10°C or more and less than 7°C as measured by differential scanning calorimetry (DSC),
    and the component [D] contained therein accounting for 1 part by mass or more and less than 10 parts by mass relative to the total quantity of the first epoxy resin composition and the second epoxy resin composition, which accounts for 100 parts by mass:
    [A] carbon fiber,
    [B] epoxy resin,
    [C] curing agent,
    [D] thermoplastic resin, and
    [E] particles containing a thermoplastic resin as primary component and having a volume-average particle diameter of 5 to 50 µm.
    [Mathematical formula 1] log 10 G ′ Pa at 25 ° C − log 10 G ′ Pa at 40 ° C 15

    LIGHTNING STRIKE PROTECTION
    36.
    发明公开
    LIGHTNING STRIKE PROTECTION 审中-公开

    公开(公告)号：EP3771558A1

    公开(公告)日：2021-02-03

    申请号：EP20179570.5

    申请日：2020-06-11

    申请人： The Boeing Company

    发明人： BREI, Mark R. ,  GORDON, Kevin D. ,  LAWTON, Thomas G. ,  WESTREN, Anthony M. ,  NIX, Meredith P.

    IPC分类号： B32B33/00 ,  B64D45/02 ,  B32B5/02 ,  B32B27/40 ,  B32B27/38 ,  B32B27/36

    摘要： The present disclosure is directed to an exterior surface protective layer (20) for protecting a composite structure from environmental conditions including: at least one curable film; such as two curable films (22; 26) , and an electrically conductive material (24), wherein the electrically conductive material comprises a wire-free electrically conductive material, and/or an electrically conductive polymer weave, wherein the at least one curable film includes at least one of polyurethane, polyimide, polyester or epoxy upon curing, and wherein a weight of the exterior surface protective layer ranges from about 0.02 pounds per square foot to about 0.1 pounds per square foot. An exterior surface protected composite structure and methods of forming an exterior surface protected composite structure are also provided.