The invention discloses a conductive, lightning protection and electromagnetic shielding integrated composite material, which comprises a conductive reinforcement body, a surface protection layer and a resin matrix, the conductive reinforcement body is synthesized by a conductive fabric layer, and the conductive fabric is formed by weaving conductive weft yarns and carbon fiber warp yarns; and the surface protection layer and the conductive reinforcement body are combined into a whole through the resin matrix. The invention also provides a preparation method of the composite material. The preparation method specifically comprises the following steps: S1, weaving the conductive yarns and the carbon fibers into a conductive fabric; s2, dipping a conductive fabric in a resin system, removing redundant resin, and drying to prepare a conductive fabric prepreg; s3, cutting the conductive fabric prepreg, and sequentially laying the cut conductive fabric prepreg on a mold to prepare a preformed body; s4, the surface protection layer is attached to the preformed body and compacted; s5, packaging the mold, and exhausting air to form negative pressure; step S6, curing; and S7, after cooling, a formed product is separated from the mold, and the composite material structural part is obtained.

    本发明公开了一种导电、雷击防护、电磁屏蔽一体化复合材料,包括导电增强体、表面防护层和树脂基体,所述导电增强体采用导电织物层合成,导电织物由导电纬纱和碳纤维经纱编织而成;所述表面防护层与导电增强体通过树脂基体结合为整体。本发明还提供一种复合材料的制备方法,具体为:步骤S1,将导电纱线与碳纤维编织成导电织物;步骤S2,将导电织物在树脂体系中浸渍,再除去多余的树脂并烘干制备成导电织物预浸料;步骤S3,将导电织物预浸料裁剪后在模具上依次铺层,制备成预成形体;步骤S4,将表面防护层贴敷在预成形体上并压实;步骤S5,封装模具,并抽气形成负压;步骤S6,固化;步骤S7,冷却后将成型品与模具分离,获得复合材料结构件。


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    Title :

    Conductive, lightning protection and electromagnetic shielding integrated composite material and preparation method thereof


    Additional title:

    一种导电、雷击防护、电磁屏蔽一体化复合材料及其制备方法


    Contributors:
    YI XIAOSU (author) / JIANG MINQIANG (author) / LIU XIAOLING (author) / WANG XIN (author)

    Publication date :

    2024-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64G Raumfahrt , COSMONAUTICS



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