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A kind of epoxy resin-based bulletproof composite material and preparation method thereof

A bulletproof composite material and epoxy resin technology, applied in the direction of protective equipment, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of further improvement of impact resistance, limited application range, inconvenient wearing, etc., to achieve High hardness, improved mechanical properties, light and thin material effect

Inactive Publication Date: 2018-04-03
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Soft materials are mainly made of flexible materials such as aramid fiber or high-density polyethylene woven in different ways. They are mainly used for non-straight bullets, that is, stray bullets or shrapnel impacts. The impact resistance effect needs to be further improved; hard materials are mainly ceramic materials. , metal materials, composite materials, etc. Although these materials can achieve good impact resistance, they still have disadvantages such as heavy weight, thick thickness, and inconvenient wearing, and the scope of application is greatly limited.

Method used

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  • A kind of epoxy resin-based bulletproof composite material and preparation method thereof
  • A kind of epoxy resin-based bulletproof composite material and preparation method thereof
  • A kind of epoxy resin-based bulletproof composite material and preparation method thereof

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specific Embodiment approach

[0028] see Figure 1-Figure 4 , a specific embodiment of the preparation method of an epoxy resin-based bulletproof composite material of the present invention, the preparation method comprises the following steps:

[0029] A preparation method of the above-mentioned epoxy resin-based bulletproof composite material is characterized in that the preparation method comprises the steps of:

[0030] (1) Preparation of graphene oxide aqueous solution: graphite oxide was prepared by the improved Hummers method to obtain graphene oxide aqueous solution;

[0031] (2) Graphene oxide aqueous solution is mixed with epoxy resin: graphene oxide aqueous solution is mixed with curing agent first; then graphene oxide is made into aqueous solution and mixed with epoxy resin to obtain graphene oxide sheet / epoxy resin mixed solution.

[0032] (3) Shear flow orientation of graphene oxide / epoxy resin mixed solution: put the graphene oxide sheet / epoxy resin mixed solution into a resin tank, extrude...

Embodiment 1

[0038] 1. Graphene oxide is made into an aqueous solution of 118mg / L, and the epoxy resin is bisphenol A type E-51; the curing agent QS-1850 is mixed according to the volume ratio of graphene oxide solution and epoxy resin at 1:10 (graphene oxide The mass percentage of ethylene and epoxy resin is about 1%).

[0039] 2. Aramid woven fabric 3 specifications for the ballistic layer 6 and the ballistic layer 7: yarn 1000D, unit weight 220g / m 2 , thickness 0.28mm; energy absorbing layer 5 aramid 3D woven spacer fabric 4 specifications: yarn 1000D, unit weight 650g / m 2 , Thickness 5.5mm.

[0040] 3. The pressure of the epoxy resin pipeline is 0.35MPa, the speed of the cloth feeding mechanism is 3m / min, and the sizes of the shear flow slits corresponding to the bullet-receiving layer 6, the energy-absorbing layer 5, and the bullet-resistant layer 7 are 1.5mm, 2mm, and 1.5mm, respectively.

[0041] 4. Lamination hot pressing curing conditions: drying temperature 75°C, drying time 1 ...

Embodiment 2

[0043] 1. Graphene oxide is made into an aqueous solution of 118mg / L, and the epoxy resin is bisphenol A type E-51; the curing agent QS-1850 is mixed according to the volume ratio of graphene oxide solution and epoxy resin at 1:10.

[0044] 2. Aramid woven fabric 3 for the ballistic layer 6 and the ballistic layer 7: plain weave, yarn 1500D, unit weight 240g / m 2 , thickness 0.3mm; energy absorbing layer 5 aramid three-dimensional woven spacer fabric 4 specifications: yarn 1500D, unit weight 850g / m 2 , Thickness 8.5mm.

[0045] 3. The pressure of the epoxy resin pipeline is 0.42MPa, the speed of the cloth feeding mechanism is 1.5m / min, and the sizes of the shear flow slits corresponding to the bullet-receiving layer 6, energy-absorbing layer 5, and bullet-resistant layer 7 are 1.5mm, 2mm, and 1.5mm, respectively .

[0046] 4. Lamination hot pressing curing conditions: drying temperature 75°C, drying time 1.5 hours, hot pressing pressure: 10GPa, curing temperature 140°C, curin...

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Abstract

The invention provides a bulletproof composite based on epoxy resin and a preparation method of the bulletproof composite. The bulletproof composite is characterized in that a bullet receiving layer and a bullet resisting layer are both made of graphene oxide / aramid fiber woven fabric / epoxy resin, and an energy absorbing layer (buffer layer) is made of graphene oxide / aramid fiber three-dimensional woven spacer fabric / epoxy resin. The bulletproof composite is mainly characterized in that graphene oxide sheets in the bullet receiving layer, the energy absorbing layer and the bullet resisting layer are uniformly arranged in the resin, aramid fiber woven fabric and aramid fiber three-dimensional woven spacer fabric in the orientation of the fabric surface. The three layers are cured together through epoxy resin to form an integrated bulletproof composite. Compared with existing bulletproof materials made of steel, metal, ceramic and the like, the bulletproof composite has more excellent bulletproof performance and can be used for enhancement of critical parts of flexible bulletproof clothes, materials for preventing direct impact of bullets, anti-impact materials for engineering and the like, and the composite is light, thin and simple to prepare.

Description

technical field [0001] The invention belongs to the technical field of novel composite materials, and relates to the improvement of a bulletproof material and a preparation method, in particular to an epoxy resin-based bulletproof composite material and a preparation method thereof. Background technique [0002] At present, there are mainly two types of bulletproof materials: one is soft material and the other is hard material. Soft materials are mainly made of flexible materials such as aramid fiber or high-density polyethylene woven in different ways. They are mainly used for non-straight bullets, that is, stray bullets or shrapnel impacts. The impact resistance effect needs to be further improved; hard materials are mainly ceramic materials. , metal materials, composite materials, etc. Although these materials can achieve better impact resistance, they still have disadvantages such as heavy weight, thick thickness, and inconvenient wearing, and their application range is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/02B32B27/12B32B27/34B32B37/06B32B37/10B32B38/16D06M11/74D06M15/55
CPCB32B5/02B32B5/26B32B27/12B32B27/34B32B37/06B32B37/10B32B38/164B32B2255/20B32B2260/021B32B2260/046B32B2262/0269B32B2307/558B32B2571/02D06M11/74D06M15/55D06M2101/36
Inventor 陈国华曲丽君高山田明伟朱士凤
Owner QINGDAO UNIV
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