▎ 摘　　要

NOVELTY - Graphene-based electromagnetic stealth and shielding integrated material comprises top-bottom three-layer laminate structure, upper layer, middle layer and the bottom layer, where the upper layer is polymer-based glass fiber composite panel, the middle layer is polymer-based graphene/non-woven composite material and the bottom layer is polymer-based carbon fiber composite panel, each layer structure is adopted, the polymers are cured epoxy resins for the curing of each layer of the structure, as well as the bonding between the layers, the mass ratio of the non-woven fabric to the graphene in the intermediate layer is 20:4, the total thickness of three laminated layer structure ranges from 1-20 mm and the thickness ratio of the upper layer and the middle layer and the bottom layer is 1:10:2-6. USE - Graphene-based electromagnetic stealth and shielding integrated material. ADVANTAGE - The graphene-based electromagnetic stealth and shielding integrated material has better electromagnetic wave absorbing and shielding performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene-based electromagnetic stealth and shielding integrated material, which involves mixing deionized water with graphene oxide to obtain an aqueous solution of graphene oxide having a concentration of 3-11 mg/ml, adding hydroquinone to aqueous graphene oxide solution, the mixture is uniformly stirring, and immersing the non-woven fabric in the mixed solution for 2 hours, the mass ratio of hydroquinone to graphene oxide is 1-15, soaking non-woven fabric and placing in a sealed environment at 60-150 degrees C and keeping for 2-50 hours, washing non-woven fabric with deionized water, and freeze-dried in an environment of -1-5 degrees C for 10-72 hours to obtain a graphene/non-woven composite material, acetone to alcohol mass ratio of 1:1 mixed configuration of acetone alcohol cleaning solution, acetone carbon fiber cleaning solution to clean carbon fiber woven fabric and glass fiber woven fabric and drying, the carbon fiber woven fabric and glass after drying, the fiber woven fabric is tiling and stitching the upper layer and the lower layer of the graphene/non-woven fabric composite material to obtain a three-layer layer structure and the total thickness of the three-layer layer structure is in the range of 1-20 mm, the thickness ratio of the upper layer, the middle layer and the bottom layer is 1:10:2-6, mixing the epoxy resin with the curing agent to obtain a precursor solution and placing the three-layer laminated structure stitched into a vacuum curing mold, and pouring the precursor solution into the mold to obtain the precursor solution impregnated, curing the laminated layer structure, after being clamping at a pressure of 1-5 Pa and 50-200 degrees C for 1-20 hours to obtain a three-layered layer structure after curing, where the curing agent is diaminodiphenylmethane, mass ratio of curing agent to epoxy resin is 3:10-8:10 and the mass ratio of epoxy resin to triple layer structure is 1:1-1:20.