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Preparation method of graphene/metal composite panel

A metal plate and metal composite technology, applied in the direction of non-metal elements, metal layered products, chemical instruments and methods, etc., to achieve the effect of retaining intrinsic physical properties, reducing production costs, and good toughness

Inactive Publication Date: 2014-07-23
BEIJING GRAPHENE TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no reports on the preparation of graphene composite metal sheets using graphene slurry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The steps of the preparation method of this kind graphene / metal composite plate are:

[0023] (1) Add 50g of polyvinyl alcohol into 450ml of distilled water, heat to 100°C, and use mechanical stirring to prepare the polyvinyl alcohol solution;

[0024] (2) Add 25g of graphene to 475ml of distilled water, and prepare a monodisperse graphene solution using an ultrasonic cell pulverizer. The working time of the ultrasonic cell pulverizer exceeds 30 minutes;

[0025] (3) uniformly mixing the polyvinyl alcohol solution configured in step (1) with the graphene solution prepared in step (2) to form a graphene / polyvinyl alcohol mixed slurry;

[0026] ⑷Select 3~5 aluminum alloy sheets with a thickness of 1mm~4mm or choose 6~10 aluminum alloy sheets with a thickness of 1mm~2mm. After the surface activation treatment of the aluminum alloy sheets, remove the scale, clean and dry, and use the method of spraying Coat the graphene / polyvinyl alcohol mixed slurry on the upper and lower...

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Abstract

The invention relates to a preparation method of a graphene / metal composite panel. The preparation method comprises the steps of firstly uniformly mixing a monodispersed graphene solution with a polyvinyl alcohol solution to prepare graphene / polyvinyl alcohol mixed slurry, spraying the graphene / polyvinyl alcohol mixed slurry to the upper and lower surfaces of a plurality of metal panels, heating to remove polyvinyl alcohol in a coating, and finally laminating the metal panels to prepare the graphene / metal composite panel in a hot rolling manner. The preparation method has the beneficial effects that by compositing the graphene / polyvinyl alcohol mixed slurry with the metal panels, the dispersity of graphene can be guaranteed; by utilizing a hot rolling process, the graphene can be beneficially dispersed into matrixes of the panels so as to play a strengthening effect; the molecular association between the graphene and the metal panels is realized in the premise of well preserving intrinsic physical properties of the graphene and a metal material; the process is simple, the large-batch and large-size graphene composite panels are easily prepared, the production cost is lowered, and the preparation method has excellent engineering application prospects in the fields of light armor materials, aviation, spaceflight and the like.

Description

technical field [0001] The invention relates to a preparation method of a graphene / metal composite plate, which belongs to the technical field of composite materials. technical background [0002] Graphene is a new type of two-dimensional nanomaterial, its strength is as high as 1.01Tpa, which is 100 times that of structural steel, but its density is 1 / 5 of that of structural steel. Under the background that it is difficult to improve the strength of metal materials by traditional process methods, graphene has become another important direction for strengthening metal materials. Graphene is a sheet-like structure with a single molecular layer or several molecular layers, and its length ranges from 20 μm to 50 μm. The main preparation methods include physical and chemical methods. At present, chemical methods are commonly used to prepare large quantities of graphene in the market. Due to the low density of graphene, it can reduce the density of the material while increasing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10B32B15/04B32B9/04B05D7/14
CPCB32B2037/243F41H5/0442B32B2313/04B32B15/01B32B2255/06B32B2255/26C01B32/194B32B15/016B32B37/10B32B2255/20B32B2307/54B32B2309/02B32B2311/24B05D1/02B05D3/0254B05D3/0493B05D7/582B32B9/007B32B9/041B32B38/004B05D2350/30B05D2202/25B32B2307/202B32B2307/558B32B2307/302B32B2605/18B32B2571/02B32B7/12B32B37/12
Inventor 燕绍九杨程洪起虎刘大博戴圣龙林左鸣
Owner BEIJING GRAPHENE TECH RES INST CO LTD
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