▎ 摘　　要

NOVELTY - High temperature-resistant broadband wave absorbing/bearing composite material comprises a wave-transmitting layer, an impedance matching layer, an electric loss wave absorbing layer, a magnetic loss absorbing layer and a reflecting layer, where the above layers are fiber reinforced resin-based composite material and the wave-transparent layer is doped with hollow glass beads and the thickness of the material is 3-10 microm. USE - Used as high temperature-resistant broadband wave absorbing/bearing composite material. ADVANTAGE - The composite material: is light weight; has simple and easy preparation process and wide wave absorbing frequency band; and excellent mechanical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the High temperature-resistant broadband wave absorbing/bearing composite material comprising (i) uniformly mixing the hollow glass beads with resin, coating the mixture on fiber cloth and drying the fiber cloth until the surface is dry to serve as a wave-transmitting layer, (ii) uniformly mixing the conductive carbon black and resin, coating the mixture on fiber cloth, heating the mixture at a low temperature to be surface dry, heating the mixture for curing and repeating the heating and curing for multiple times until the sheet resistance meets the requirements to obtain impedance matching cloth, (iii) uniformly mixing the electrical loss absorbent with resin, coating the mixture on fiber cloth, heating the mixture at a low temperature to be surface dry, heating the mixture to be cured and repeating the heating and curing for multiple times until the square resistance of the electrical loss wave-absorbing cloth meets the requirement to obtain electrical loss wave-absorbing cloth, (iv) uniformly mixing the magnetic loss absorbent with resin, coating the mixture on fiber cloth, heating the fiber cloth to be surface-dry at low temperature, heating the fiber cloth to be solidified and repeating the steps for multiple times until the density of the surface of the magnetic loss wave-absorbing cloth meets the requirement to obtain magnetic loss wave-absorbing cloth, (v) coating resin on the carbon fiber cloth and drying to be surface dry to be used as a reflecting layer for allowing to stand, (vi) performing resin pre-dipping treatment on the electric loss wave absorption cloth obtained in the step (iii) and the magnetic loss wave absorption cloth obtained in the step (iv), respectively coating resin on two surfaces of the wave absorption cloth, heating and drying the wave absorption cloth until the surface is dry and using the wave absorption cloth as an electric loss wave absorption layer and a magnetic loss wave absorption layer, (vii) stacking and laying the layers of cloth according to the sequence of the wave-transmitting layer, impedance matching layer, electric loss wave-absorbing layer, magnetic loss wave-absorbing layer and reflecting layer and then molding by adopting a prepreg molding process of the composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the high temperature-resistant broadband wave absorbing/bearing composite material.