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Bulletproof and stab-resistant material

A bullet-proof, stab-proof and bullet-proof suction technology is applied to protective equipment, the structure of armor plates, armor, etc., and can solve the problems of lack of stab-proof effect, large back convex depth, and the need for improvement of ballistic resistance.

Active Publication Date: 2022-01-21
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of bulletproof ability, the existing soft bulletproof materials (usually multi-sheet surface density of 160g / m 2 The left and right UD sheets are superimposed) generally can prevent the bullets fired by pistols and submachine guns beyond 5m, but the back convex depth is large, the bulletproof performance needs to be improved, and it does not have the anti-stab effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] In the present invention, the preparation method of described Kevlar fiber woven composite material preferably comprises the following steps:

[0063] (1) prepare Kevlar fiber woven fabric;

[0064] (2) The Kevlar fiber woven fabric obtained in the step (1) is hot-compressed with the PU adhesive film / PU omentum to obtain the Kevlar fiber woven composite material.

[0065] The present invention preferably produces Kevlar fiber woven fabrics. In the present invention, there is no special limitation on the operation of preparing the Kevlar fiber woven fabric, and operations well known to those skilled in the art can be used.

[0066] After the Kevlar fiber woven fabric is obtained, the present invention preferably combines the Kevlar fiber woven fabric with the PU film / PU omentum by hot pressing to obtain the Kevlar fiber woven composite material.

[0067] In the present invention, the PU adhesive film / PU omentum is preferably produced by Jiangsu Dongrun Safety Technolog...

Embodiment 1

[0083] A bullet-proof and stab-proof material, which is an impact-resistant layer, a cut-resistant bullet-proof energy-absorbing layer and an anti-back convex layer from top to bottom;

[0084] Wherein, the impact-resistant layer is a single Kevlar fiber UD sheet; the Kevlar fiber UD sheet is composed of 8 layers of Kevlar fiber UD single sheet heat-compressed; two adjacent layers of Kevlar fiber UD single sheet are orthogonally arranged Cloth; the linear density of the Kevlar fiber in the Kevlar fiber UD monolith is 600D, and the monofilament strength is 25cN / dtex; the surface density of the Kevlar fiber UD monolith is 50g / m 2 , the thickness is 0.05mm; the temperature of the hot-compression composite is 120°C, the pressure is 20MPa, and the time is 40min; the surface density of the Kevlar fiber UD sheet is 400g / m 2 ; The thickness of the impact-resistant layer is 0.4mm;

[0085] The anti-cutting bulletproof energy-absorbing layer is formed by superimposing 22 Kevlar fiber U...

Embodiment 2

[0091] A bullet-proof and stab-proof material, from top to bottom is an impact-resistant layer and a cut-resistant bullet-proof and energy-absorbing layer;

[0092] Wherein, the impact-resistant layer is a single Kevlar fiber UD sheet; the Kevlar fiber UD cloth is made of 8 layers of Kevlar fiber UD single sheet heat-compressed; two adjacent layers of Kevlar fiber UD single sheet are arranged orthogonally ; The linear density of the Kevlar fiber in the Kevlar fiber UD monolith is 600D, and the monofilament strength is 25cN / dtex; the surface density of the Kevlar fiber UD monolith is 50g / m 2 , the thickness is 0.05mm; the temperature of the hot-press composite is 120°C, the pressure is 20MPa, and the time is 40min; the surface density of the Kevlar fiber UD cloth is 400g / m 2 ; The thickness of the impact-resistant layer is 0.4mm;

[0093] The cut-resistant bulletproof energy-absorbing layer is composed of 42 Kevlar / UHMWPE fiber hybrid UD sheets arranged in an orthogonal arrang...

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Abstract

The invention provides a bulletproof and stab-resistant material, and belongs to the technical field of protective materials. The bulletproof and stab-resistant material comprises an impact-resistant layer and a cutting-resistant bulletproof energy-absorbing layer, wherein the impact-resistant layer is a single or multiple Kevlar fiber UD sheets and can resist initial cutting of a cutter and initial impact of a shrapnel, the cutting-resistant bulletproof energy-absorbing layer is formed by stacking a plurality of Kevlar fiber UD sheets and / or a plurality of UHMWPE fiber UD sheets or stacking a plurality of Kevlar / UHMWPE fiber mixed UD sheets, the material is endowed with cutting-resistant, bulletproof and energy-absorbing functions by the Kevlar fiber and the UHMWPE fiber, and the bulletproof and stab-resistant effects are improved. Experimental results show that the total surface density of the bulletproof and stab-resistant material is 4.0-8.5 kg / m < 2 >, and the bulletproof requirement and the stab-resistant requirement can be met.

Description

technical field [0001] The invention belongs to the technical field of protective materials, and in particular relates to a bulletproof and stabproof material. Background technique [0002] The development and manufacture of protective clothing is inseparable from the development of various weapons and the advancement of equipment levels. Bulletproof vest materials are mainly hard bulletproof materials made of special steel, aluminum alloy and other metals at first. This kind of bulletproof vest has certain bulletproof performance, but the clothes are thick and uncomfortable to wear, which greatly restricts human activities and is prone to damage. secondary debris. In order to improve the wearing comfort of bulletproof vests, soft bulletproof materials are produced thereupon. Soft bulletproof materials are light in weight, relatively soft in texture, good in fit, and have good concealment when worn inside. In terms of bulletproof ability, the existing soft bulletproof mat...

Claims

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Application Information

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IPC IPC(8): F41H5/04
CPCF41H5/0485
Inventor 曹海建陈红霞黄晓梅严雪峰马岩
Owner NANTONG UNIVERSITY
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