Wide-spectrum extinction interference material and preparation method thereof

Abstract

The invention provides a wide-spectrum extinction interference material and a preparation method thereof. The method comprises the following steps: respectively preparing a first solution and a second solution by utilizing a first container and a second container which are subjected to ultrasonic cleaning and drying treatment; obtaining a mixed solution of the first solution and the second solution, and performing aging treatment on the mixed solution to prepare a CoNi-MOFs precursor suspension; the CoNi-MOFs precursor turbid liquid is placed in a centrifugal machine to be subjected to centrifugal treatment, CoNi-MOFs precipitates with supernate removed are obtained, the CoNi-MOFs precipitates are placed in a vacuum drying box to be subjected to drying treatment, and CoNi-MOFs powder is obtained to serve as a CoNi-MOFs precursor; and the CoNi-MOFs precursor is placed in a tube furnace to be subjected to calcination treatment, and CoNi-MOFs-800 powder is obtained to serve as the wide-spectrum extinction interference material.

Description

technical field [0001] The invention relates to the field of photothermal material preparation, in particular to a broad-spectrum extinction interference material and a preparation method thereof. Background technique [0002] Precision-guided weapons have officially entered the stage of history since the Vietnam War. With the development of science and technology, it has become increasingly difficult for single-mode guided weapons to meet the needs of modern warfare. Therefore, dual-mode or even multi-mode guided weapons have become precision-guided weapons conventional way. [0003] In order to counteract the existing photoelectric guidance means and photoelectric detection technology, smoke screen, as a cost-effective and fast passive interference method, plays a key role. It quickly releases a large amount of aerosol particles into the air to change the transmission characteristics of electromagnetic waves in the air to effectively interfere with photoelectric detection...

AI Technical Summary

Problems solved by technology

[0004] Among them, metal materials can achieve rapid attenuation of electromagnetic waves due to their good electromagnetic properties, but their specific gravity and poor suspension, so the interference time is re

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