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Soft knife-stabbing-preventing composite and preparing method thereof

A composite material, anti-stabbing technology, applied in protective equipment, protective equipment, chemical instruments and methods, etc., can solve the problems of heavy anti-stabbing materials, wearing of anti-stabbing materials, difficult cutting, discomfort and other problems

Active Publication Date: 2016-01-06
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal flakes and inorganic particles will not only increase the unit weight of the material, making the stab-resistant material heavier and harder; it will also make it more difficult to wear and cut the stab-resistant material
[0005] In patent W02007 / 084104, it is proposed to combine multi-layer high-strength high-modulus polyethylene fabric with EVA film and rubber to make anti-stab layer material, but the composite processing time is too long, and industrial production is difficult
[0006] In the patent US20070105471, a multi-layer aramid fabric is proposed Double-sided coated inorganic particles are used for anti-stab materials. However, if too little inorganic particles are added, the protective effect will not be reflected; otherwise, the overall material will appear too hard, which will bring discomfort
[0007] At the same time, the protective efficiency of the above-mentioned soft anti-stab materials still needs to be improved, and the weight of the anti-stab materials still needs to be reduced

Method used

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  • Soft knife-stabbing-preventing composite and preparing method thereof
  • Soft knife-stabbing-preventing composite and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Commercially available non-membrane ZTC17 (four layers without weft sheets, laminated in the form of 0° / 90° / 45° / 135°, produced by Hunan Zhongtai Special Equipment Co., Ltd.) was used as the fiber of ultra-high molecular weight polyethylene UHMWPE fiber unit, and a graphene microsheet (thickness <15nm, diameter D50 about 5μm, tensile strength 5GPa, provided by Xiamen Kaina Graphene Technology Co., Ltd.) as the main raw materials.

[0049] First, the graphene microsheet film was prepared by the following steps: 1) scrape-coat styrene-ethylene-butylene-styrene (SEBS) glue on a clean stainless steel sheet, and dry it to obtain an adhesive layer; 2) apply graphene The microchips were soaked in a pH=8.5, 5g / l dopamine solution, stirred at room temperature for 24 hours, taken out, washed with water, and dried in vacuum; 3) Dissolving the treated graphene microchips in N,N-dimethyl In formamide, a stable phase is formed; then take a small amount, drop it into water, and form a ...

Embodiment 2

[0053] Four layers of aramid laid sheets bonded by styrene block copolymer are laminated in the form of 0° / 90° / 45° / 135° as an aramid fiber (para-aramid 629, Yantai Taihexin Materials Co., Ltd.) and a graphene microsheet (thickness <15nm, diameter D50 about 5μm, tensile strength 5GPa, Xiamen Kaina Graphene Technology Co., Ltd.) as the main raw materials.

[0054] First, prepare the graphene microflake film containing graphene microflakes through the following steps: 1) Scrape-coat the glue of styrene-ethylene-butylene-styrene (SEBS) on a clean stainless steel sheet, and obtain the adhesive layer after drying ; 2) immerse the graphene microchip in pH=8.5, process in the dopamine solution of 5g / l, after stirring at room temperature for 24h, take it out and wash it with water, and dry it in vacuum; 3) dissolve the graphene microchip after the treatment in N , N-dimethylformamide to form a stable phase; then take a small amount, drop it into water, and form a layer of graphene micr...

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Abstract

The invention discloses a soft knife-stabbing-preventing composite. The soft knife-stabbing-preventing composite is composed of a graphene nanoplatelet film and a fiber unit. Graphene nanoplatelets are bonded through first adhesives and two-dimensionally and orderly arranged in the mode of being parallel to the surface of the graphene nanoplatelet film. Fiber layers are bonded through second adhesives and made of high-strength and high-modulus fibers. The high-strength and high-modulus fibers in each fiber layer are parallel in a one-way mode. The graphene nanoplatelet film and the fiber unit are bonded through third adhesives. The soft knife-stabbing-preventing composite has the advantages of being high in protection efficiency, small in unit protection weight and easy to prepare; the soft knife-stabbing-preventing composite can be widely applied to protection devices such as knife stabbing preventing clothes and knife stabbing preventing gloves.

Description

technical field [0001] The invention relates to a soft stab-resistant composite material, in particular to a stab-resistant material composed of high-strength and high-modulus fibers and graphene microsheets. Background technique [0002] Knife stabbing is one of the common threats faced by modern civilized society. With the increasingly severe international "anti-terrorism" situation, people's demand for various personal protective equipment is more urgent, especially the requirement for stabbing-resistant clothing. In addition to meeting increasingly stringent protection standards, requirements such as light weight, comfortable wearing, and ease of movement have also been put forward. [0003] Anti-stab materials are mainly divided into two types: hard and soft. Among them, the hard is mainly made of metal materials such as manganese steel, and the soft is mainly made of high-strength and high-modulus fiber composite materials. The form of fiber aggregates selected for so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B9/00B32B9/04B32B37/06B32B37/10B32B37/12B32B38/00B32B5/02F41H1/00
CPCB32B5/02B32B7/12B32B9/00B32B9/047B32B37/06B32B37/10B32B37/12B32B38/00B32B2307/536B32B2309/02B32B2309/12B32B2571/00F41H1/00
Inventor 戴飞郑震曹小倩王新灵
Owner SHANGHAI JIAO TONG UNIV