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Preparation method of copper/graphene composite material

A composite material and graphene technology, applied in the field of carbon material science, can solve the problems of poor bonding force, difficult preparation of graphene/copper composite materials, etc., and achieve long service life, excellent chemical and thermodynamic stability, and good corrosion resistance. Effect

Active Publication Date: 2019-04-30
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the preparation of graphene / copper composites faces many difficulties due to the dispersion problem of graphene and its weak van der Waals interaction with metal substrates resulting in poor bonding.

Method used

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  • Preparation method of copper/graphene composite material
  • Preparation method of copper/graphene composite material

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preparation example Construction

[0046] A method for preparing a copper / graphene composite material, the raw materials used include copper, graphite and zirconium, the volume percentage of copper:graphite:zirconium is 62-70%:30%:0-8%;

[0047] Adopt above-mentioned raw material to carry out the method for preparing copper / graphene composite material and comprise the following steps:

[0048] (1) Calculation: First design the specifications of the sample, multiply the total volume by the volume percentage of copper, graphite, and zirconium to obtain the volume occupied by the three elements, and then use the obtained volume to multiply the corresponding element density Get the mass of the corresponding three elements, and finally weigh the samples in proportion;

[0049] (2) Sample weighing: use the calculated data to weigh the sample on the balance;

[0050] (3) Mixing: Copper, graphite and zirconium are evenly mixed to obtain mixing;

[0051] (4) Cold-pressed tableting: utilize tableting machine and metal ...

Embodiment 1

[0068] A method for preparing a copper / graphene composite material, the raw materials used include copper, graphite and zirconium, and the volume percentage of copper: graphite: zirconium is 62%: 30%: 8%;

[0069] Adopt above-mentioned raw material to carry out the method for preparing copper / graphene composite material and comprise the following steps:

[0070] (1) Calculation: First design the specifications of the sample, multiply the total volume by the volume percentage of copper, graphite, and zirconium to obtain the volume occupied by the three elements, and then use the obtained volume to multiply the corresponding element density Get the mass of the corresponding three elements, and finally weigh the samples in proportion;

[0071] (2) Sample weighing: use the calculated data to weigh the sample on the balance;

[0072] (3) Mixing: Copper, graphite and zirconium are evenly mixed to obtain mixing;

[0073] (4) Cold-pressed tableting: utilize tableting machine and met...

Embodiment 2

[0090] A method for preparing a copper / graphene composite material, the raw materials used include copper, graphite and zirconium, and the volume percentage of copper: graphite: zirconium is 65%: 30%: 5%;

[0091] Adopt above-mentioned raw material to carry out the method for preparing copper / graphene composite material and comprise the following steps:

[0092] (1) Calculation: First design the specifications of the sample, multiply the total volume by the volume percentage of copper, graphite, and zirconium to obtain the volume occupied by the three elements, and then use the obtained volume to multiply the corresponding element density Get the mass of the corresponding three elements, and finally weigh the samples in proportion;

[0093] (2) Sample weighing: use the calculated data to weigh the sample on the balance;

[0094] (3) Mixing: Copper, graphite and zirconium are evenly mixed to obtain mixing;

[0095] (4) Cold-pressed tableting: utilize tableting machine and met...

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Abstract

The invention discloses a preparation method of a copper / graphene composite material. The preparation method adopts raw materials including copper, graphite and zirconium, wherein the volume percentage ratio of copper to graphite to zirconium is 62-70%:30%:0-8%. The preparation method comprises the following steps that (1) calculation is carried out, specifically, the specification of a sample isdesigned first, and the sample is weighed in proportion; (2) the sample is weighed, specifically, the calculated data are used for weighing the sample on a balance; (3) mixing is carried out, specifically, copper, graphite and zirconium are uniformly mixed to obtain a mixed material; (4) cold pressing and tabletting are carried out, specifically, the mixture is tabletted by using a tabletting machine and a metal mold to obtain a sample; (5) density is measured, specifically, the density is obtained compared with the designed theoretical density; and (6) sintering is carried out, the sample issent into a sintering furnace for sintering, after sintering is completed, and the copper / graphene composite material is obtained after cooling.

Description

technical field [0001] The invention relates to the field of carbon material science and technology, in particular to a method for preparing a copper / graphene composite material. Background technique [0002] Graphene is a new material with a single-layer sheet structure composed of carbon atoms. For a long time, graphene was considered as a hypothetical structure and could not exist stably alone. Until 2004, Andre Geim and Konstantin Novoselov of the University of Manchester in the United Kingdom passed the test for the first time. The method of micromechanical exfoliation successfully obtained graphene, and thus won the 2010 Nobel Prize in Physics. [0003] Graphene is currently the thinnest (0.335nm) but also the hardest nanomaterial in the world. It is almost completely transparent, with an absorption rate of only 2.3%, and a thermal conductivity as high as 5300W / m K, which is higher than that of carbon nanotubes and diamonds. Carbon materials, graphene has good electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C32/00C22C1/05C22C1/10
CPCC22C1/05C22C9/00C22C32/0084
Inventor 庞兴志杨剑冰韩杰湛永钟庞明君秦海青
Owner GUANGXI UNIV