Performance-adjustable flexible wave-absorbing composite material as well as preparation method and application thereof

Abstract

The invention discloses a flexible wave-absorbing composite material with adjustable performance as well as a preparation method and application thereof, and relates to the technical field of wave-absorbing materials. The flexible wave-absorbing composite material with the adjustable performance is composed of a modified carbon fiber / silicon rubber composite material formed by compounding a modified carbon fiber wave-absorbing agent and silicon rubber, and magnetic metal. The wave-absorbing performance of the flexible wave-absorbing composite material with the adjustable performance is regulated and controlled by regulating and controlling the array of the magnetic metal. Modified carbon fibers and silicone rubber are prepared into a flexible wave-absorbing composite material, the flexible wave-absorbing composite material is matched with magnetic metal (iron nails) to prepare a wave-absorbing material / device, the wave-absorbing performance of the composite material is regulated and controlled by means of a magnetic metal array, and the rare convenient and adjustable effect of the wave-absorbing performance is achieved; the problem that layer changing is needed for regulation and control of an existing wave-absorbing material is solved.

Description

technical field [0001] The present invention relates to the technical field of wave absorbing materials, in particular to a flexible wave absorbing composite material with adjustable performance and a preparation method and application thereof. Background technique [0002] In today's era, with the rapid development of science and technology and the ever-changing society, all aspects of social life are flooded with electromagnetic waves. While the complex electromagnetic environment brings unprecedented convenience to life, it also has a serious negative impact on human health and information security. In the military field, weapons and equipment are constantly updated iteratively. With the continuous deepening of mechanization and informatization of the militaries of various countries, various electronic equipment such as radar and data link communication have also been popularized on the battlefield. "The survivability of modern weapons and equipment is facing severe tests...

AI Technical Summary

Problems solved by technology

On the whole, in the current work on microwave absorbing materials, most of the performance control effects are achieved by changing the content of the wave absorbing agent in the composite material or the overall thickness of the composite material, which is costly and difficult to control in practical applications. The process is cumbersome, and there is still a lack of research on microwave-absorbing materials whose performance can be adjusted conveniently; the existing limited works that achieve performance adjustment through factors such as voltage, shape memory skeleton, and temperature are based on complex material systems and experimental environments. , microstructure design, not only the obtained effect is not obvious, but also the absorbing strength of the final composite material is attenuated to a very weak level, and it is very cumbersome to control, and there are also defects of complexity and high cost, and it is still in its infancy.

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