▎ 摘　　要

NOVELTY - Wave-absorbing sandwich composite material based on a honeycomb transverse structure, comprises an upper wave-transmitting layer, a middle wave-absorbing layer and a lower reflecting layer. The middle wave-absorbing layer is at least one layer of wave-absorbing honeycombs transverse to the thickness direction of the honeycomb. USE - Wave-absorbing sandwich composite material based on a honeycomb transverse structure. ADVANTAGE - The composite material has excellent wave-absorbing performance, and has good application prospect in the military and civil fields. The material has wide source, stable forming technique and convenient operation, and can easily realize multi-layer graphene structure. The volume shrinkage caused by chemical reduction and drying process is good for compacting the surface deposited reduction-oxidation coating graphene into a compact structure, and forming a strong interaction between the reduction oxidation coating graphene and the fiber cloth, so as to solve the problem that the existing wave absorbing honeycomb sandwich composite material is easy to appear coating easy to be damage and bad durability. In addition, it also can reduce the weight of the honeycomb wave absorbing material while having excellent wave absorbing bandwidth. The fiber cloth coated and reduced graphene oxide is composed of mutually interwoven fiber, so that the conductive graphene distributed on the composite material surface in the form of three-dimensional network, which is good for forming the threedimensional conductive network to effectively improve the conductivity and conductivity loss of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of wave-absorbing sandwich composite material based on a honeycomb transverse structure.