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Glass flake/graphene conductive composite material and preparation method thereof

A technology of graphene-based materials and glass flakes, which is applied in the direction of conductive coatings, chemical instruments and methods, anti-corrosion coatings, etc., can solve problems such as the inability to meet the growing requirements of downstream industries, weak conductivity of composite glass flakes, and environmental pollution. Achieve the effects of preventing sheet agglomeration, excellent electrical conductivity, and avoiding environmental pollution

Active Publication Date: 2019-01-22
SHANDONG OBO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, the existing process uses the traditional chemical plating process, which is not only cumbersome, but also uses a large amount of heavy metal salt solutions such as nickel salt, copper salt or chromium salt for chemical plating, which has great pollution to the environment. At the same time, the conductive properties of the composite glass flakes The performance is still relatively weak, unable to meet the growing requirements of downstream industries

Method used

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  • Glass flake/graphene conductive composite material and preparation method thereof
  • Glass flake/graphene conductive composite material and preparation method thereof
  • Glass flake/graphene conductive composite material and preparation method thereof

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preparation example Construction

[0048] The present invention also provides a kind of preparation method of glass flake / graphene composite material, comprises the following steps:

[0049] A) After mixing the graphene material solution and the glass flakes, a mixture is obtained;

[0050] B) drying the mixture obtained in the above steps, and then grinding to obtain a solid powder;

[0051] C) After heat-treating the solid powder obtained in the above steps, a glass flake / graphene composite material is obtained.

[0052] In the preparation method of the above-mentioned glass flake / graphene composite material of the present invention, the optimal principle and addition amount of materials used are consistent with the optimal principle and addition amount of materials in the aforementioned glass flake / graphene composite material, and will not be repeated here. .

[0053] In the present invention, the graphene material solution and the glass flakes are firstly mixed to obtain the mixture.

[0054] The present...

Embodiment 1

[0084] 1. Dissolve the graphene solution produced by Shandong Oupo New Materials Co., Ltd. in ethanol (mass fraction is 5 ‰), ultrasonicate and stir for 30 minutes at room temperature to obtain a graphene dispersion solution;

[0085] Two, add 400 order glass flakes (graphene ratio is 2.5 ‰) to the graphene dispersion solution that obtains in step 1, keep stirring 60min, obtain mixed solution;

[0086] 3. Suction filter the mixed solution obtained in step 2 to obtain a filter cake, and dry it in an oven for 60 minutes at a drying temperature of 80° C. to obtain solid powder 1;

[0087] 4. The solid powder 1 obtained in step 3 is subjected to low-speed ball milling, the ball milling speed is 300r / s, and the ball milling time is 30min to obtain solid powder 2;

[0088] 5. Place the solid powder 2 obtained in step 4 in a muffle furnace, raise the temperature and keep it for a period of time to obtain composite conductive glass flakes. Wherein, the calcination temperature is 300°...

Embodiment 2

[0099] 1. Dissolve the graphene solution produced by Shandong Oupo New Materials Co., Ltd. in ethanol (mass fraction is 3‰), ultrasonically and stir for 20min at normal temperature to obtain a graphene dispersion solution;

[0100] Two, add 500 order glass flakes (graphene ratio is 1.5 ‰) to the graphene dispersion solution that obtains in step 1, keep stirring 30min, obtain mixed solution;

[0101] 3. Suction filter the mixed solution obtained in step 2 to obtain a filter cake, and dry it in an oven for 40 minutes at a drying temperature of 60° C. to obtain solid powder 1;

[0102] 4. The solid powder 1 obtained in step 3 is subjected to low-speed ball milling, the ball milling speed is 400r / s, and the ball milling time is 120min to obtain solid powder 2;

[0103] 5. Place the solid powder 2 obtained in step 4 in a muffle furnace, raise the temperature and keep it for a period of time to obtain composite conductive glass flakes. Wherein, the calcination temperature is 350° C...

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Abstract

The invention provides a glass flake / graphene composite material, comprising a glass flake and a graphene material compounded on the surface of the glass flake. According to the invention, the graphene material (graphene or its derivatives) is compounded with the glass flake to form a stable composite structure, so surface uniform distribution of graphene can be realized, the agglomeration of graphene sheets is effectively prevented, the electrical conductivity of the glass flake is greatly improved, and the glass flake / graphene composite material with excellent electrical conductivity is obtained. The glass flake / graphene composite material is allowed to become a highly-efficient conductive filler, shows improved electrical conductivity in subsequent coating application, and has effectively improved corrosion resistance. The graphene is successfully compounded on the surface of the glass flake by using a simple method without usage of high-hazard reducing agents such as hydrazine hydrate, so environmental pollution is avoided, and the method is simpler in process, mild in condition, safe, environment-friendly, and more applicable to large-scale mass production.

Description

technical field [0001] The invention belongs to the technical field of conductive composite materials, and relates to a glass flake / graphene composite material and a preparation method thereof, in particular to a glass flake / graphene conductive composite material and a preparation method thereof. Background technique [0002] Glass flakes (Glass Flakes) are extremely thin glass fragments with a thickness of about 5 microns in the shape of scales (alkali glass, C glass). It is produced through the process steps of cooling, crushing, screening and grinding. Glass flakes are made by rapid cooling of molten glass under tension. Therefore, the internal structure of its glass flakes is very similar to that of glass fibers. It is not a stable structure, but a metastable structure, but its composition is completely different. The performance of glass flakes is different from that of gradually cooled flat glass, and its strength is much greater than that of ordinary glass plates. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D5/24C09C1/00C09C3/06
CPCC01P2006/40C08K3/04C08K3/40C08K7/00C08K9/02C08K2201/003C09C1/00C09C3/063C09D5/08C09D5/24
Inventor 奚洪亮张在忠赵永彬李伟铭刘海波
Owner SHANDONG OBO NEW MATERIAL CO LTD