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Bulletproof back plate with bionic laminated structure and preparation method of bulletproof back plate

A technology of laminated structure and bulletproof back plate, which is applied in the direction of protective equipment, armor plate structure, offensive equipment, etc., can solve the problems of insufficient protection performance, and achieve the effect of high lightweight level, excellent bulletproof performance and high protection performance

Active Publication Date: 2021-12-24
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a bulletproof backboard with a bionic laminated structure, which solves the problem of insufficient protective performance of the existing domestic materials, ensures excellent bulletproof performance, and has a high level of light weight

Method used

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  • Bulletproof back plate with bionic laminated structure and preparation method of bulletproof back plate
  • Bulletproof back plate with bionic laminated structure and preparation method of bulletproof back plate
  • Bulletproof back plate with bionic laminated structure and preparation method of bulletproof back plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a bullet-proof backboard with a bionic laminated structure is carried out as follows:

[0037]S1. Preparation of carbon fiber prepreg:

[0038] S1.1 Use phenolic resin, epoxy resin and polyurethane to mix according to the mass ratio of 1:5:2, add acetone, stir at 120rpm for 12min, and dilute the mixed resin 1 to a concentration of 88% by mass for use;

[0039] S1.2 Use the mixed resin 1 prepared in S1.1 to impregnate the carbon fiber, the impregnation temperature is 98°C, the impregnation time is 6min, and the impregnation is dried at 48°C for 5min, and the mass ratio of the resin content is controlled to 5% by squeezing rollers ;

[0040] S2, preparation of polyethylene fiber prepreg

[0041] S2.1 Use phenolic resin, epoxy resin and polyurethane to mix according to the mass ratio of 1:1:8, add acetone and stir at 120rpm for 12min, and dilute the mixed resin 2 to a concentration of 92% by mass for use;

[0042] S2.2 Use step S2.1 to prepare mix...

Embodiment 2

[0048] The difference from Example 1 is that in the preparation process of the bionic laminated composite structure in this example, the lay-up sequence from top to bottom is: 1 layer of T800 carbon fiber prepreg cloth + 12 layers of ultra-high molecular weight polyethylene fiber prepreg cloth. Prepreg cloth + 1 layer of T700 carbon fiber prepreg cloth + 12 layers of UHMWPE fiber prepreg cloth + 1 layer of T600 carbon fiber prepreg cloth + 12 layers of UHMWPE fiber prepreg cloth; During the process, it is ensured that the direction of the fiber filaments of each adjacent carbon fiber layer is distributed at 90°, and the direction of the ultra-high molecular weight polyethylene fiber filaments of each adjacent layer is randomly distributed at x° (x≠0). All the other preparation processes are the same as in Example 1.

Embodiment 3

[0050] The difference from Example 1 is that during the preparation process of the bionic laminated composite structure in this example, the lay-up sequence from top to bottom is: 1 layer of T800 carbon fiber prepreg cloth + 10 layers of ultra-high molecular weight polyethylene fiber prepreg cloth. Prepreg cloth + 1 layer of T800 carbon fiber prepreg cloth + 11 layers of UHMWPE fiber prepreg cloth + 1 layer of T800 carbon fiber prepreg cloth + 15 layers of UHMWPE fiber prepreg cloth; During the process, it is ensured that the direction of the fiber filaments of each adjacent carbon fiber layer is distributed at 90°, and the direction of the ultra-high molecular weight polyethylene fiber filaments of each adjacent layer is randomly distributed at x° (x≠0). All the other preparation processes are the same as in Example 1.

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Abstract

The invention discloses a bulletproof back plate with a bionic laminated structure. The bulletproof back plate is composed of carbon fiber layers and polyethylene fiber layers, specifically, n polyethylene fiber layers are overlaid under a single carbon fiber layer to form modules, n is 10-30, the direction of fiber yarns between every two adjacent polyethylene fiber layers is in x-degree distribution, x is not equal to 0, a plurality of modules are overlaid and compounded, the fiber yarn directions of the carbon fiber layers in the adjacent modules are distributed at 90 degrees, and the number of the superposed modules is not less than 3. The bulletproof back plate with the bionic bottom layer structure has high protection performance, bending strength is greater than 90 MPa, shore hardness is greater than 80 ShoreD, impact toughness is greater than 20 kN and mechanical performance is excellent, when the surface density is 3.25 kg / m<2>, V50 of the bulletproof back plate reaches 604 m / s, and the bulletproof back plate has excellent bulletproof performance and higher light weight level and has great advantages in the fields of individual soldier protection, small-caliber armor protection and the like.

Description

technical field [0001] The invention relates to the technical field of bulletproof materials, in particular to a bulletproof backboard with a bionic laminated structure and a preparation method thereof. Background technique [0002] Some marine organisms have a strong biological defense shell, which is mostly composed of collagen nanofibers and inorganic salt crystals, such as shrimp and crab shells, fish scales, etc., and is characterized by the hard outer layer of highly crystalline crystals Impact-resistant layer, under the impact layer is a helical nano-collagen fiber without weft structure, which is called Bollinger structure. The energy absorption principle of the Bollingen structure can be explained as follows: the crystalline shell homogenizes the impact energy, while the soft fiber structure continues to consume the kinetic energy into the mutual motion of fibers and the mutual motion of layer-to-layer friction; most importantly, The mechanical anisotropy of the he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/04
CPCF41H5/0485
Inventor 郭峰李忠盛吴护林黄安畏丛大龙程时雨孙彩云吴永鹏聂嘉兴贺斌
Owner NO 59 RES INST OF CHINA ORDNANCE IND