Intelligent infrared and visible light dual-band stealth fabric and preparation method thereof

A visible light, dual-band technology, applied in the field of infrared camouflage, can solve the problem that passive thin films cannot realize dynamic regulation, etc., and achieve remarkable camouflage effect, fast response speed, and energy saving effect

Inactive Publication Date: 2021-06-08
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above camouflage methods all have the following two problems: (1) Passive thin films cannot achieve dynamic control; (2) Simultaneous control of visible and infrared is extremely challenging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for preparing an intelligent infrared and visible light dual-band stealth fabric is provided, comprising the following steps:

[0045] 1) Preparation of the visible light color customization layer: select 20D red and green PE spinning yarns with a diameter of 200, and use a loom to weave a fabric with a specific pattern, with a thickness of 30 μm and an infrared transmittance of 80%;

[0046] 2) Preparation of infrared emissivity control layer:

[0047] (1) The porous PE woven strip is woven into a fabric, wherein the infrared transmittance is 90% and the porosity is 44%;

[0048] (2) Use a vacuum plasma cleaning machine to carry out surface hydrophilic treatment on the fabric, so that hydrophilic groups are attached to the surface and internal pores;

[0049] (3) Put the fabric after hydrophilic treatment into 30% LiBr solution, take it out after soaking for 20 minutes, and obtain an infrared emissivity control layer with adjustable infrared emissivity, with ...

Embodiment 2

[0055] A method for preparing an intelligent infrared and visible light dual-band stealth fabric is provided, comprising the following steps:

[0056] 1) Preparation of the visible light color customization layer: select a blue PE spinning thread with a diameter of 20D, and use a loom to weave a fabric with a specific pattern, with a thickness of 25 μm and an infrared transmittance of 85%;

[0057] 2) Preparation of infrared emissivity control layer:

[0058] (1) Porous PE yarn is spun into a porous fabric, wherein the infrared transmittance of the porous fabric is 92%, and the porosity is 48%;

[0059] (2) Use a vacuum plasma cleaning machine to carry out surface hydrophilic treatment on the porous fabric, so that hydrophilic groups are attached to the surface and internal pores;

[0060] (3) Put the porous fabric after hydrophilic treatment into 20% LiCl solution, take it out after soaking for 30 minutes, and obtain an infrared emissivity control layer with adjustable infra...

Embodiment 3

[0066] It is basically the same as Example 1, except that the low-infrared emission layer is prepared. The low-infrared emission layer of the present invention uses a 100 μm stainless steel film as the low-emission layer, and the infrared emission rate of stainless steel is 0.25.

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Abstract

The invention discloses an intelligent infrared and visible light dual-band stealth fabric and a preparation method thereof. The stealth fabric sequentially comprises a visible light color customized layer, an infrared emissivity regulation and control layer, an infrared low-emissivity layer and a protection layer from top to bottom, wherein the visible light color customized layer is a hydrophobic dyed fabric with infrared transmittance greater than 0.5; the infrared emissivity regulation and control layer is a porous flexible fabric containing a hygroscopic substance, the porosity of the porous flexible fabric is greater than 10%, and the infrared transmittance is greater than 0.5; the infrared low-emissivity layer is a thin film with the infrared emissivity smaller than 0.5; and the protection layer is a hydrophobic flexible fabric. The fabric is prepared by weaving and integrating the four layers of structures in sequence. The fabric can dynamically regulate and control the infrared emissivity according to the change of the temperature of a covered object, can realize camouflage of a visible wave band, is light, flexible, reusable, wide in application range and simple to prepare, can be produced and manufactured on a large scale, and is expected to be used in multiple fields such as military combat, clothing manufacturing, thermal management and the like.

Description

technical field [0001] The invention belongs to the field of infrared camouflage, and in particular relates to an intelligent infrared and visible light dual-band stealth fabric and a preparation method thereof. Background technique [0002] The upgrade of the power of thermal weapons in modern warfare is mainly due to the increase of engine power and the use of sophisticated electronic equipment. However, these military equipment generate a lot of heat during operation, which makes many remote sensing positioning equipment develop "infrared thermal detection" positioning systems for this, resulting in Weaponry is in great danger of being destroyed. Similarly, the human body will also produce heat, facing the danger of being detected and locked by infrared. Therefore, in the face of precise strikes by infrared detection technology, camouflaging the infrared signals of soldiers and military equipment is crucial to improving the survivability of the battlefield. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B5/06B32B5/26B32B33/00D06M10/02D06M11/13D06M11/83D06M101/20
CPCB32B5/02B32B5/06B32B5/26B32B33/00B32B2262/02B32B2262/0253B32B2262/0269B32B2262/0284B32B2307/40B32B2307/402B32B2307/554B32B2307/718B32B2307/726B32B2437/00B32B2571/02D06M10/025D06M11/13D06M11/83D06M2101/20
Inventor 刘抗刘辉东王晨逸廖雨田毛铭冉冯春早
Owner WUHAN UNIV
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