▎ 摘　　要

NOVELTY - Preparing a corrosion-resistant graphene-based magnetic composite foam wave absorbing material, comprises (i) dispersing graphene oxide and reducing agent in water to obtain a dispersion, obtaining reduced graphene oxide hydrogel by hydrothermal reduction method, and obtaining graphite by dialysis, freeze drying, and heat treating under inert gas olefin foam (GN), and (ii) mixing bisphthalonitrile, ethylene glycol, polyethylene glycol, sodium acetate, and iron source uniformly to obtain a mixed liquid, and immersing the graphene foam in the above mixed liquid by using a vacuum-assisted impregnation method, adsorbing the graphene foam and saturating, subjecting to solvent heat treatment, and hydroalcoholic dialysis, freeze drying and heat treating under inert gas to obtain final product. USE - The method for preparing corrosion-resistant graphene-based magnetic composite foam wave absorbing material useful for electronic equipment, military equipment, and precision electronic equipment and in the field of magnetic protection (all claimed). ADVANTAGE - The method is simple and easy to operate. The composite foam material exhibits excellent absorption strength and wide-screen absorption characteristics (covering the entire X-band). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for corrosion-resistant graphene-based magnetic composite foam wave absorbing material obtained by the method as mentioned above.