Composite wave-absorbing material preparation method

Abstract

The invention discloses a composite wave-absorbing material preparation method which comprises the following steps: firstly, the hydrothermal synthesis method and the in-situ polymerization are adopted to prepare NiCuZn ferrite coated carbon nanotube / polythiophene composite material; then, structural characterization is adopted to research and analyze the functions of NiCuZn ferrite and polythiophene; finally, a sample vibration magnetometer, a four-point probe conductometer and a vector network analyzer are adopted to carry out performance tests respectively. The composite wave-absorbing material preparation method has the following advantages: the composite wave-absorbing material is wide in microwave absorption frequency band, small in material density, high in absorption efficiency and excellent in combination property, and plays an important role in the fields of stealth technology of military equipment, civil human body safety protection, communication anti-interference and electronic information privacy.

Description

technical field [0001] The invention relates to a preparation method of a composite wave-absorbing material. Background technique [0002] The research and development of microwave-absorbing materials has achieved certain results, but there are still shortcomings such as narrow frequency band, low efficiency, and high surface density, and the application range is limited to a certain extent. Therefore, broadband absorbents are developed and multi-band compatible microwave absorbers are developed. Materials, to achieve high-efficiency absorption is the future development trend of absorbing materials. At the same time, the physical and chemical properties of the material are required to be stable, that is, the absorber remains stable under various physical and chemical conditions (such as light, heat, long-term electromagnetic radiation, etc.). With the development of various electromagnetic wave absorption mechanisms and models, conductive polymer-inorganic nanomaterial com...

AI Technical Summary

Problems solved by technology

There are many literatures on the preparation of nickel-copper-zinc ferrite, carbon nanotubes, and polythiophene polymers for absorbing materials, and the preparation technology is also very mature, but the research on the combination of the three to prepare absorbing materials has not been reported. The research and preparation of zinc ferrite-coated carbon nanotubes / polythiophene composite absorbing materials is very promising