In order to prepare the high-performance electromagnetic interference (EMI) shielding materials to cope with the increasingly serious electromagnetic (EM) radiation pollution situation, in this work, epoxy/Ag nanowire/thermal annealed graphene aerogel composites (EP/AgNW/TAGA) with three-dimensional (3D) bicontinuous conductive skeleton are prepared through a vacuum-assisted impregnation method. By introducing the one-dimensional (1D) AgNW on two-dimensional (2D) graphene and welding the AgNW during hydrothermal reduction and thermal annealing process, the electrical conductivity of EP/AgNW/TAGA are greatly enhanced from 26.5 S/m to the highest value of 595.7 S/m. Besides, the EP/AgNW/TAGA achieve the highest EMI shielding effectiveness (EMI SE) value of 84.01 dB in X-band and absorption-dominate shielding mechanism. Moreover, the compressive strength of composites reached 173.54 MPa, which shows the great application value as high-performance EMI shielding material in fields like construction, aerospace and electronics field.

为了制备高性能电磁干扰（EMI）屏蔽材料以应对日益严重的电磁（EM）辐射污染情况，在这项工作中，环氧树脂/银纳米线/热退火石墨烯气凝胶复合材料（EP/AgNW/TAGA）通过真空辅助浸渍方法制备具有三维（3D）双连续导电骨架的材料。通过在二维 (2D) 石墨烯上引入一维 (1D) AgNW 并在水热还原和热退火过程中焊接 AgNW，EP/AgNW/TAGA 的电导率从 26.5 S/m 大大提高到最高值 595.7 S/m。此外，EP/AgNW/TAGA 在 X 波段和吸收主导的屏蔽机制中实现了 84.01 dB 的最高 EMI 屏蔽效率 (EMI SE) 值。而且，