Composite bulletproof unit material and production method thereof

A unit layer, bulletproof fiber technology, applied in the field of materials, can solve the problem of no relevant reports on the correlation of bulletproof fiber resin adhesives, and achieve the effect of excellent performance and excellent ballistic resistance.

Active Publication Date: 2014-06-25
BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the loss modulus of the bulletproof fiber is related to the bulletproof performance, there is no relevant report on the correlation between the loss modulus of the bulletproof fiber and the loss modulus of the resin adhesive.

Method used

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  • Composite bulletproof unit material and production method thereof
  • Composite bulletproof unit material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] FT123 fiber, 800d / 528f (strength 32cN / dtex, tensile modulus 1250cN / dtex, strain sensitivity rate at 2.4×10 3 the s -1 When the dynamic tensile stress ≥ 2.8GPa. The high-strength high-modulus polyethylene fiber with a sound wave transmission speed of 11000m / s) is unwound from the creel, and under the traction of the tractor, the fibers are spread and arranged in parallel and evenly at equal intervals within a certain width through the steel needles arranged in parallel. , the fiber is quantitatively impregnated through a glue tank containing an acrylate resin adhesive and a squeegee device, wherein the tensile modulus of the acrylate resin is 5MPa, and the viscosity and loss modulus are increased by adding rosin tackifier emulsion to make it Under the same test conditions, the loss modulus is consistent with that of the bulletproof fiber at 30-40°C. The impregnated unidirectional fiber tape is heated and dried by hot air in the air cylinder, and finally wound up to for...

Embodiment 2

[0068] Repeat Example 1, except that the two-layer orthogonal composite bulletproof unit material in Example 1 is again subjected to orthogonal thermal compounding to prepare a four-layer orthogonal composite bulletproof unit material structure.

[0069] Sample preparation of the bulletproof chip, cutting the composite bulletproof unit material into a square sheet of 40×40cm, and then stacking it to an area density of 4.0kg / m 2 target sheet. Detect the dent and V50 value of anti-9mm full metal jacket bullet. Table 2 shows that the bulletproof chip composed of this composite bulletproof unit material meets the requirements and is better than Comparative Example 3.

[0070] Table 1 and Table 2 show the comparative examples of specific embodiments and the relevant parameters of the examples.

[0071] Table 1

[0072]

[0073] Table 2

[0074] example

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Abstract

Composite bulletproof unit material is composed of N two-layer unit layers in a crossing manner; N is not smaller than 1 and not larger than 8. Organic films are attached to two sides of the unit layers. The crossing angle of each two adjacent layers is 45-90 degrees. The first layer is made of bulletproof fiber unidirectional tapes wrapped in first resin adhesive; the second layer is made of bulletproof fiber unidirectional tapes wrapped in second resin adhesive; tensile modulus of the first resin adhesive is lower than 6MPa, and the tensile modulus of the second resin adhesive is higher than 6MPa; loss modulus of the first and second resin adhesives is equal to that of bulletproof fiber at 30-40 DEG C under the same test frequency and strain value. When strain sensitivity of the bulletproof fiber is 2.4*10<3>s<-1>, dynamic tensile stress is at least 2.4GPa, and acoustic wave conduction speed is at least 1000mm / s. Two resin adhesives are applied to the adjacent layers, a bulletproof product of the composite bulletproof unit material has moderate softness and hardness and excellent bulletproof property.

Description

technical field [0001] The invention relates to the field of materials, in particular to a composite bulletproof unit material and a preparation method thereof. Background technique [0002] Bulletproof materials are composite materials based on high-strength and high-modulus fibers. Bulletproof materials are generally applied to personal protection, such as body armor. Bulletproof materials are mainly divided into soft bulletproof materials and hard bulletproof materials, both of which have different bulletproof mechanisms. Hard bulletproof materials mainly use their own hardness to change the shape of bullets or fragments, thereby reducing their kinetic energy and playing the role of bulletproof, while soft bulletproof materials mainly play a buffer role through the deformation of soft bulletproof materials, absorbing projection The kinetic energy of bullets or fragments on it can achieve the purpose of bulletproof. [0003] The structure of the bulletproof material may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H1/00B32B27/12B32B7/12B32B37/02
CPCB32B5/12B32B5/26B32B7/12B32B2255/02B32B2255/26B32B2262/0253B32B2262/0269B32B2307/518B32B2307/558B32B2571/00B32B2571/02F41H5/0485B32B27/12F41H1/02F41H5/04
Inventor 陈振坤黄兴良冯向阳余燕飞
Owner BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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