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Composite flexible bulletproof material

A flexible and composite Kevlar technology, applied in the field of materials, can solve the problems of short life, poor impact resistance, poor moisture resistance, etc., and achieve the effect of improving performance, improving heat resistance and reducing water absorption.

Inactive Publication Date: 2015-07-01
杨晓波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The purpose of the present invention is to overcome the disadvantages of poor impact resistance, short life and poor moisture resistance of existing bulletproof clothing materials, and provide a composite flexible bulletproof material

Method used

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  • Composite flexible bulletproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] It is prepared according to the following process:

[0061] A. The processed Kevlar fiber and the fiber blending made of ultra-high molecular weight polyethylene are woven into a composite Kevlar fiber layer;

[0062] B. The woven composite Kevlar fiber layer is heated to 150-200°C by infrared rays in a vacuum environment, and then vulcanized at a temperature of 200-450°C;

[0063] C. Weave the reacted composite Kevlar fiber layer, hook up another layer of composite Kevlar fiber layer, repeat step 2, each composite Kevlar fiber layer is staggered from another composite Kevlar fiber layer by 0.25 - 0.5 braided sleeves;

[0064] D. Repeat step 3 multiple times, and then carbonize the lower surface of the multi-layered composite Kevlar fiber layer.

[0065] The treated Kevlar fiber is processed according to the following method: cellulose ether, sodium stearate, polyurethane resin, fatty alcohol polyoxyethylene ether sodium sulfate, silicone resin polyether emulsion, wat...

Embodiment 2

[0067] Embodiment 2: After step B, a coating spraying step may also be included, and the interlayer spraying liquid is evenly sprayed on the vulcanized composite Kevlar fiber layer, and the spraying thickness is 10-20 microns.

[0068] The interlayer spraying liquid is made from the following raw materials,

[0069] The interlayer spraying liquid is made of the following raw materials: nano-scale graphene, nano-scale titanium dioxide, N, N-dimethylformamide, silica gel, mixed according to the ratio of 20:22:30:15, in an ultrasonic environment Mix evenly to form a sol. All the other are with embodiment 1.

Embodiment 3-10

[0071] The treated Kevlar fiber is mixed according to the ratio shown in the following table, and after mixing uniformly in an ultrasonic environment at 85-88°C, it is coated on the outer surface of the Kevlar fiber and cooled and dried; The coating thickness is 5-8 microns; the cooling refers to natural cooling to room temperature. The ratio of raw materials and the performance of the treated Kevlar material are as follows, and the rest are the same as in Example 1.

[0072]

[0073] The research of each product performance of above-mentioned embodiment is as follows:

[0074]

[0075]

[0076] From the experimental results, the breaking strength of the monofilament has not been enhanced, and the elongation at break has not been significantly improved, but the acid and alkali resistance, corrosion resistance and ultraviolet resistance have been greatly improved, and the water absorption has also been improved. A big improvement; in addition, the strength retention is ...

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Abstract

A flexible composite bulletproof material overcomes the defects that an existing bulletproof material is poor in impact force resistance, short in service life and poor in damp-proof performance. The flexible composite bulletproof material is manufactured according to the following processes that A, processed Kevlar fibers and fibers made of ultra-high molecular weight polyethylene are blended and woven into a composite Kevlar fiber layer; B, the woven composite Kevlar fiber layer is heated to 150-200 DEG C through infrared rays in a vacuum environment, and then vulcanization reaction is conducted at the temperature ranging from 200 DEG C to 450 DEG C; C, the reacted composite Kevlar fiber layer is woven, another composite Kevlar fiber layer is crocheted, the step two is repeated, and each composite Kevlar fiber layer and another composite Kevlar fiber layer are staggered by 0.25-0.5 wired tube; D, the step three is repeated many times, and then carbonization treatment is conducted on the lower surface of the multiple layers of woven composite Kevlar fiber layers. The flexible composite bulletproof material is strong in impact force resistance, good in bulletproof effect, long in service life, good in damp-proof performance, and suitable for being popularized and applied.

Description

technical field [0001] The invention relates to a composite flexible bulletproof material. It belongs to the field of material technology. Background technique [0002] The bullet-proof clothing of prior art can be divided into three kinds of soft body, hard body and soft-hard composite. The material of soft body armor is mainly high-performance textile fibers. These high-performance fibers are much higher than the energy absorption capacity of general materials, endowing body armor with bulletproof function, and because this type of body armor generally adopts the structure of textiles, it has considerable The softness is called soft body armor. Hard body armor is based on metal materials such as special steel plates, super-strong aluminum alloys, or hard non-metallic materials such as aluminum oxide and silicon carbide. The body armor made from this generally does not have flexibility. The softness of the soft-hard composite body armor is between the above two types. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H1/02D04C1/02D06C7/00D06C7/04D06M11/74D06M11/46D06M11/79D06M13/352D06M13/192D06M11/28D06M101/20
Inventor 杨晓波
Owner 杨晓波
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