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Invisible bullet-proof material as well as preparation method and application thereof

A metamaterial, bulletproof layer technology, applied in chemical instruments and methods, armor plate structure, lamination, etc., can solve the problem of inapplicability of low-frequency radar waves, etc., to achieve the effect of ensuring bonding strength

Pending Publication Date: 2020-10-30
东莞天卫电磁技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It uses the hysteresis loss and eddy current loss of the amorphous metal strip network to absorb electromagnetic waves, but its absorption frequency range is 8-40GHz, which is not suitable for low-frequency radar waves

Method used

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  • Invisible bullet-proof material as well as preparation method and application thereof
  • Invisible bullet-proof material as well as preparation method and application thereof
  • Invisible bullet-proof material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] This example provides a kind of stealth bulletproof material, such as figure 1 with figure 2 As shown, it includes the first bulletproof layer 11, the first metamaterial layer 12, the first base layer 13, the second bulletproof layer 21, the second metamaterial layer 22, the second base layer 23, and the third bulletproof layer stacked in sequence. 31. The third metamaterial layer 32, the third base layer 33, the fourth bulletproof layer 41, the fourth metamaterial layer 42, the fourth base layer 43 and the fifth bulletproof layer 51;

[0089] Among them, the first bulletproof layer 11, the second bulletproof layer 21, the third bulletproof layer 31, the fourth bulletproof layer 41 and the fifth bulletproof layer 51 are all composed of UHMWPE non-weft cloth, and their thicknesses are 8mm, 7mm, 1mm, and 6mm respectively. , 5mm;

[0090] The materials of the first base layer 13, the second base layer 23, the third base layer 33 and the fourth base layer 43 are all PE f...

Embodiment 2

[0102] This example provides a kind of stealth bulletproof material, and the difference with embodiment 1 is:

[0103] The square resistance of the first resistor sheet 121 is 150Ω, the outer contour side length of the frame area is 36mm, the inner contour side length of the frame area is 30mm, and the side length of the square area is 16mm;

[0104] The square resistance of the second resistance sheet 221 is 100Ω, and the side length is 14mm;

[0105] The square resistance of the third resistor sheet 321 is 100Ω, the side length is 16mm, and the distance between the third metamaterial layer 32 and the second metamaterial layer 22 is 1.3mm;

[0106] The square resistance of the fourth resistance sheet 421 is 50Ω, the outer contour side length of the frame area is 36 mm, the inner contour side length of the frame area is 30 mm, and the side length of the square area is 18 mm.

Embodiment 3

[0108] This example provides a kind of stealth bulletproof material, and the difference with embodiment 1 is:

[0109] The square resistance of the first resistor sheet 121 is 250Ω, the outer contour side length of the frame area is 37mm, the inner contour side length of the frame area is 32mm, and the side length of the square area is 20mm;

[0110] The square resistance of the second resistance sheet 221 is 400Ω, and the side length is 18mm;

[0111] The square resistance of the third resistance sheet 321 is 400Ω, the side length is 20mm, and the distance between the third metamaterial layer 32 and the second metamaterial layer 22 is 1.6mm;

[0112] The square resistance of the fourth resistive sheet 421 is 180Ω, the outer contour side length of the frame area is 37 mm, the inner contour side length of the frame area is 32 mm, and the side length of the square area is 20 mm.

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Abstract

The invention provides an invisible bullet-proof material as well as a preparation method and application thereof. The invisible bullet-proof material comprises a wave-absorbing material composite layer and a bullet-proof layer which are arranged alternatively in a stacking way, wherein the wave-absorbing material composite layer is formed by compounding metamaterial layers and substrate layers; the metamaterial layers are resistor disc arrays formed by periodically arranging resistor discs; the resistor discs in the metamaterial layers at the two ends of the invisible bullet-proof material comprise square regions, frame regions surrounding the square regions, and connecting arms connecting the square regions and the frame regions; and the resistor discs in the internal metamaterial layersare square. The preparation method of the invisible bullet-proof material comprises the following steps of compounding the resistor disc arrays on the substrate layers firstly to form the wave-absorbing material composite layer; and then stacking the bullet-proof layer materials in sequence, and laminating and compounding the bullet-proof layer materials into a whole. The invisible bullet-proof material provided by the invention is relatively small in thickness, and has a good bullet-proof function and a 1.3-8GHz broadband invisible function.

Description

technical field [0001] The invention belongs to the technical field of stealth and bulletproof, and in particular relates to a stealth bulletproof material and its preparation method and application. Background technique [0002] In the field of national defense and military affairs, various new detection methods and precision guidance technologies are developing rapidly, battlefields are becoming smaller and more transparent, and the importance of stealth is increasing day by day. With the development of technologies such as phased arrays, radar detection technology has been greatly developed. Countries have deployed a large number of radar wave detection systems such as early warning aircraft, ground radar and sea-based radar. The radar detection frequency mainly covers 1-18GHz. The stealth of ultra-wideband equipment provides an important guarantee for the survival of weapon systems, and has become the primary high technology in the military field. In the complex and cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/007F41H5/04B32B5/02B32B27/12B32B27/32B32B37/10B32B38/00
CPCF41H5/04F41H5/007B32B5/022B32B27/12B32B27/32B32B38/145B32B37/1018B32B2262/0253B32B2307/20
Inventor 黄瀛
Owner 东莞天卫电磁技术有限公司
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