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Graphene/copper composite and preparation method and application

A composite material and graphene technology, applied in the field of metal composite materials, to achieve excellent electrical conductivity, high tensile strength, and avoid agglomeration

Active Publication Date: 2016-12-14
ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on graphene / copper composite materials has made great progress, but the uniform dispersion of graphene in the metal matrix still needs to be greatly improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A graphene / copper composite material, the composite material contains the following components by weight percentage: graphene 2.2wt%, Sn 0.8wt%, Ni 0.15wt%, and the balance is copper.

[0027] The preparation method of graphene / copper composite material, comprises the following steps:

[0028] (1) taking by weighing the copper-tin alloy powder, nano-nickel powder and graphene oxide whose particle diameter is 2 μm;

[0029] (2) Add copper-tin alloy powder and nano-nickel powder to absolute ethanol, ultrasonically disperse at 35°C for 50 minutes, and then magnetically stir for 1 hour to obtain a powder suspension; add graphene oxide to the powder suspension , ultrasonically dispersed at 35°C for 50 minutes, and then magnetically stirred for 1 hour to obtain a composite powder suspension, wherein the ultrasonic frequency was 15KHz;

[0030] (3) Put stainless steel balls and the composite powder suspension into a ball mill tank, ball mill for 8 hours at 550 r / min, filter, ...

Embodiment 2

[0035] A graphene / copper composite material, the composite material contains the following components by weight percentage: graphene 2.8wt%, Sn 0.6wt%, Ni0.2wt%, and the balance is copper.

[0036] The preparation method of graphene / copper composite material, comprises the following steps:

[0037] (1) taking by weighing the copper-tin alloy powder, nano-nickel powder and graphene oxide whose particle diameter is 25 μm;

[0038] (2) Add copper-tin alloy powder and nano-nickel powder to absolute ethanol, ultrasonically disperse at 40°C for 40 minutes, and then magnetically stir for 1 hour to obtain a powder suspension; add graphene oxide to the powder suspension , ultrasonically dispersed at 40°C for 40 minutes, and then magnetically stirred for 1 hour to obtain a composite powder suspension, wherein the ultrasonic frequency was 15KHz;

[0039] (3) Put stainless steel balls and the composite powder suspension into a ball mill tank, ball mill for 10 hours at 600 r / min, filter, ...

Embodiment 3

[0044] A graphene / copper composite material, the composite material contains the following components by weight percentage: graphene 1.8wt%, Sn 0.9wt%, Ni 0.1wt%, and the balance is copper.

[0045] The preparation method of graphene / copper composite material, comprises the following steps:

[0046] (1) taking by weighing the copper-tin alloy powder, nano-nickel powder and graphene oxide whose particle diameter is 16 μm;

[0047] (2) Add copper-tin alloy powder and nano-nickel powder to absolute ethanol, ultrasonically disperse at 30°C for 45 minutes, and then magnetically stir for 1 hour to obtain a powder suspension; add graphene oxide to the powder suspension , ultrasonically dispersed at 30°C for 40 minutes, and then magnetically stirred for 1 hour to obtain a composite powder suspension, wherein the ultrasonic frequency is 15KHz;

[0048] (3) Put stainless steel balls and the composite powder suspension into a ball mill tank, ball mill for 10 hours at 500 r / min, filter, ...

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Abstract

The invention relates to the field of metal composites, in particular to graphene / copper composite and a preparation method and application. The graphene / copper composite comprises, by weight: 1.2-3.5% of graphene, 0.5-1.0% of Sn, 0.05-0.3% of Ni, and the balance of copper; the preparation method of the graphene / copper composite includes the steps of weighing, preparing a powder suspension, preparing composite powder, and forming by cold pressing and sintering by hot pressing. The preparation process of the graphene / copper composite is simple and has a short period, the prepared graphene / copper composite has excellent electrical conductivity and thermal conductivity, and the composite has high tensile strength, good wear resistance and corrosion resistance and is applicable to the preparation of electrochemical sensors.

Description

technical field [0001] The invention relates to the field of metal composite materials, in particular to a graphene / copper composite material and its preparation method and application. Background technique [0002] In recent years, the rapid development of machinery, electronics, rail transit, etc. has increasingly strong demand for composite materials with high strength and high conductivity in a wide temperature range. It is difficult to meet the actual needs of simple materials, and the development of materials in the direction of compounding has become an inevitable trend. Due to its unique structure and excellent physical and chemical properties, graphene has a wide range of applications in polymer matrix composite materials, energy storage materials, optoelectronic devices, biomedicine and other fields, and has attracted great attention from domestic and foreign scientific research circles. . The composite of graphene and metal is a very important part of graphene n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 汪洋陈启志危国慧刘萍萍
Owner ANHUI NINGGUO TIANCHENG ELECTRICAL APPLIANCES
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