An intelligent infrared and visible light dual-band camouflage film and its preparation method

Abstract

The invention belongs to the field of camouflage technology, in particular to an infrared and visible light double-band camouflage film and a preparation method thereof, which can be applied to the military field. An intelligent infrared and visible light dual-band camouflage film is characterized in that it includes an infrared high-reflection film layer and an infrared emissivity control layer; the infrared high-reflection film layer and the infrared emissivity control layer are arranged sequentially from bottom to top, and the infrared emissivity control layer Attached to the infrared high-reflection film layer; wherein the infrared high-reflection film layer is a film with a metal reflection layer deposited on the surface; the infrared emissivity control layer is a porous flexible composite film containing spontaneous water-absorbing substances. The film can dynamically adjust the emissivity according to the temperature change of the covered object. It does not require external energy input and is an intelligent infrared camouflage film that can interact with the environment. The invention has small overall mass, good flexibility and low cost, can be applied to industrial mass production, and can be attached to the surfaces of most heating objects.

Description

technical field [0001] The invention belongs to the field of camouflage technology, in particular to an intelligent infrared and visible light dual-band camouflage film and a preparation method thereof, which can be applied to multiple fields such as military operations, civilian temperature measurement, and biological shelter. Background technique [0002] The basic principle of camouflage technology is to achieve the fusion of objects and surrounding environment by changing the overall or partial optical properties of objects. It is widely used in nature, such as chameleons, dead leaf butterflies, etc., all use camouflage to avoid the harm of natural enemies; it also has important practical value in the military field, which can improve the concealment of military facilities, transportation tools, soldiers, etc. , improve the survivability on the battlefield; it still has high practicability in the civilian field, it can eliminate the interference of other objects around, ...

AI Technical Summary

Problems solved by technology

The temperature of the phase transition point of this technology is too high. To meet the requirements of low temperature for practical application, the phase transition point needs to be further reduced.

The other is the control of surface topography, that is, the emissivity of the surface is controlled by changing the surface topography, but the repeatability of the material needs to be improved.

[0005] Aiming at the problems that the existing intelligent infrared camouflage has a complex structure, requires external energy input, and has a limited control range to meet the practical application, the present invention proposes an intelligent infrared camouflage film that does not require external energy input and can interact with the environment, which can be used Moisture in the environment, combined with the temperature change of the covered target object received by the film, dynamically adjusts the moisture content in the film, coupled with the low infrared emissivity of the bottom high-reflection layer, and then regulates the infrared emissivity of the film; Transparency, based on the principle of structural color to further regulate the color of the visible light band, to achieve infrared and visible dual-band camouflage

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