A three-dimensional graphene-based wave-absorbing metamaterial substrate and preparation method thereof

Abstract

The invention provides a three-dimensional graphene-based wave-absorbing metamaterial substrate and a preparation method thereof, the method comprising: adding three-dimensional graphene to raw rubber, adding a vulcanizing agent and an auxiliary agent; putting it into a banbury mixer and mixing evenly , to obtain a mixture; putting the mixture into a hot press machine for thermocompression molding, and drying to obtain a three-dimensional graphene-based wave-absorbing metamaterial substrate. The three-dimensional graphene-based wave-absorbing metamaterial substrate achieves a good dispersion of three-dimensional graphene powder in raw rubber, and the use of three-dimensional graphene can regulate the electromagnetic parameters of the wave-absorbing metamaterial substrate, which can realize the metamaterial substrate It has a wide frequency band and high absorption, and can be used as a potential application material for future stealth weapons and equipment.

Description

technical field [0001] The invention relates to the field of materials, more specifically, to a three-dimensional graphene-based wave-absorbing metamaterial substrate and a preparation method thereof. Background technique [0002] Absorbing metamaterials refer to a class of materials that can effectively absorb incident electromagnetic waves and make them scatter and attenuate. It converts incident electromagnetic waves into heat energy or other energy forms through various loss mechanisms of materials to achieve the purpose of absorbing waves. It has great application prospects in controlling electromagnetic pollution and manufacturing stealth materials. [0003] Three-dimensional (3D) graphene usually refers to a two-dimensional (2D) graphene assembly with a 3D structure, and is a new functional material in the field of graphene chemistry in recent years. Integrating 2D graphene sheets into an assembly with a 3D structure can effectively regulate the electrical, optical, ...

AI Technical Summary

Problems solved by technology

Because traditional wave-absorbing metamaterials have problems such as high density, large thickness, and stealth technology to be improved, the research and development of new wave-absorbing metamaterials such as graphene / 3D graphene has become more and more important.

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