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Bulletproof flashboard with heat absorption layer and manufacturing method thereof

A bullet-proof insert and heat-absorbing layer technology, which is applied to chemical instruments and methods, protective clothing, protective equipment, etc., can solve the problem of inability to fully exert the energy-absorbing effect of ultra-high molecular weight polyethylene plates and the ablation of ultra-high molecular weight polyethylene plates To achieve the effect of maintaining energy absorption and improving bulletproof ability

Pending Publication Date: 2021-01-22
际华集团股份有限公司系统工程中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high temperature of the bullet after passing through the ceramic, the ultra-high molecular weight polyethylene plate will be severely ablated, and the energy absorption effect of the ultra-high molecular weight polyethylene plate cannot be fully exerted

Method used

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  • Bulletproof flashboard with heat absorption layer and manufacturing method thereof
  • Bulletproof flashboard with heat absorption layer and manufacturing method thereof
  • Bulletproof flashboard with heat absorption layer and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Fabrication of Bulletproof Inserts Containing Phenolic Resin-Based Heat Absorbing Layer

[0063] Phenolic resin 50g, polyvinyl butyral 5g, graphene 10g, particle size are 10000 meshes of magnesium hydroxide 10g, with antifoaming agent n-butanol 0.2g and solvent ethanol 50g, mix in ball mill tank, ball mill 2 hours, obtain fluid Extend the slurry; the ball milling speed is set to 300rpm, and the ball milling ball is an alumina ball with a quality of 400g and a diameter of 4mm;

[0064] The casting slurry is cast into a film on a casting machine, the casting speed is 1m / min, and the height of the scraper is 1mm;

[0065] The temperature in the drying zone is set at 60°C, and after the cast film is dried, a phenolic resin-based heat-absorbing adhesive film is obtained;

[0066] Polyethylene board, phenolic resin-based heat-absorbing adhesive film, heat-absorbing layer aramid cloth, phenolic resin-based heat-absorbing adhesive film, inner crack arrest layer aramid cloth, t...

Embodiment 2

[0085] Fabrication of Bulletproof Inserts Containing Epoxy Resin-Based Heat Absorbing Layer

[0086] 50g of bisphenol A epoxy resin with a molecular weight of 4500-6500, 10g of liquid nitrile rubber toughening agent, 5g of carbon nanotubes, 5g of magnesium hydroxide with a particle size of 1000 mesh, and 50g of solvent acetone, mixed in a ball mill tank, and ball milled After 2 hours, add 0.5 g of maleic anhydride, and then continue ball milling for 10 minutes to obtain the coating slurry; the ball milling speed is set to 300 rpm, and the ball milling balls are alumina balls with a mass of 400 g and a diameter of 4 mm;

[0087] Then use a coating machine to coat the slurry on the base film, the curing temperature is 110 ° C, and the curing time is 6 hours to prepare an epoxy resin-based heat-absorbing adhesive film;

[0088] Polyethylene board, epoxy resin-based heat-absorbing adhesive film, heat-absorbing layer aramid cloth, epoxy resin-based heat-absorbing adhesive film, inn...

Embodiment 3

[0105] Fabrication of Bulletproof Inserts Containing Polyurethane-based Heat-absorbing Adhesive Film

[0106] 50g of polyurethane hot-melt adhesive particles with a melting point of 120°C, 1g of silicone leveling agent, 8g of carbon fiber staple fiber, 4g of aluminum hydroxide with a particle size of 1000 mesh, and 50g of solvent acetone are mixed in a ball milling tank, and the flow is obtained after ball milling for 2 hours. Cast the slurry; the ball milling speed is set to 300rpm, and the ball milling ball is an alumina ball with a mass of 400g and a diameter of 4mm; the casting slurry is cast into a film on a casting machine, the casting speed is 0.5m / min, and the height of the scraper is 0.8mm;

[0107] The temperature in the drying zone is set at 90°C, and after the film is dried, a polyurethane-based heat-absorbing film is obtained;

[0108] Polyethylene board, polyurethane-based heat-absorbing adhesive film, heat-absorbing layer aramid cloth, polyurethane-based heat-a...

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Abstract

The invention discloses a bulletproof flashboard with a heat absorption layer. The bulletproof flashboard comprises an ultra-high molecular weight polyethylene board, a heat absorption layer and a ceramic board which are arranged in sequence, wherein the surface of the ceramic board is wrapped with a macromolecule crack arrest layer, the heat absorption layer is formed by compounding heat absorption aramid fiber woven cloth and a heat absorption adhesive film, and the heat absorption adhesive film can be subjected to decomposition reaction under the heated condition to absorb heat. According to the bulletproof flashboard, the heat absorption layer in the bulletproof flashboard comprises the heat absorption material, the heat absorption material is decomposed after being heated and absorbsa large amount of heat at the same time, a high polymer material in the bulletproof flashboard is prevented from being severely ablated, the energy absorption effect of the bulletproof flashboard is effectively kept, and the bulletproof capacity of the bulletproof flashboard is improved.

Description

technical field [0001] The application belongs to the technical field of personal protection, in particular to the technical field of bulletproof materials, in particular to a bulletproof board with a heat absorbing layer and a manufacturing method thereof. Background technique [0002] Bulletproof inserts are generally composed of bulletproof ceramics and ultra-high molecular weight polyethylene plates, the surface is wrapped with a crack arrest layer, and there is a transition layer in the middle. The bulletproof surface of the multi-curved bulletproof board is generally made of boron carbide, silicon carbide, and alumina ceramics, which are combined with the pressed ultra-high molecular weight polyethylene board through an adhesive to form a bulletproof board. Due to the high temperature of the bullet after passing through the ceramic, the ultra-high molecular weight polyethylene plate will be severely ablated, and the energy absorption effect of the ultra-high molecular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04B32B27/02B32B27/34B32B27/12B32B27/32B32B9/00B32B9/04B32B33/00
CPCF41H5/0435B32B5/02B32B27/34B32B27/12B32B27/32B32B9/005B32B9/007B32B9/047B32B33/00B32B2262/0261B32B2307/30B32B2571/00
Inventor 田琨力小安嵇从民段银海陈晓林葛爱雄王庆春张剑磊李颖李晓鹏徐芳王丽芳赵艳娇
Owner 际华集团股份有限公司系统工程中心
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