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Preparation method of composite metal layer plated carbon nanotube/graphene composite material

A composite metal layer and carbon nanotube technology, which is applied in metal material coating technology, gaseous chemical plating, liquid chemical plating, etc., can solve the problems of comprehensive performance impact of composite materials, difficulty in industrial production, high maintenance cost, etc., to achieve Unique electrical properties, good stability and good conductivity

Active Publication Date: 2019-04-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing electroless plating, electroplating and molecular-level blending methods, due to the different requirements of different metal salt solutions for temperature and reducing agent, it is difficult to obtain a composite metal coating containing multiple metals at the same time, and the plating process It is necessary to add functional additives containing nickel, phosphorus and other elements, such as reducing agent hypophosphite, which will lead to the introduction of nickel, phosphorus and other impurity elements into the composite material, which will have a greater impact on the comprehensive performance of the composite material
However, magnetron sputtering is not easy to achieve industrial production due to complex equipment and high maintenance costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of preparation method of composite metal layer plating carbon nanotube / graphene composite material of the present invention, comprises the following steps:

[0038] (1) Adopting 3D powder mixing machine to mix carbon nanotubes and graphene according to the mass ratio of 4:1 for 3 hours, the purity of carbon nanotubes is 99%, and the purity of graphene is 99%, so as to obtain the mixed material;

[0039] (2) Add the mixed material into the acid solution, heat and reflux in a water bath at 80°C for 2 hours, then dilute with deionized water and wash until neutral, and obtain the acidified mixed material after separation and drying; the quality of the mixed material The volume ratio to the acid solution is 2:100g / mL, and the acid solution is formed by mixing concentrated sulfuric acid with a mass fraction of 98% and concentrated nitric acid with a mass fraction of 65% in a volume ratio of 3:1;

[0040] (3) Add the acidified mixed material into the sensitization solut...

Embodiment 2

[0047] A kind of preparation method of composite metal layer plating carbon nanotube / graphene composite material of the present invention, comprises the following steps:

[0048] (1) Adopting 3D powder mixing machine to mix carbon nanotubes and graphene according to the mass ratio of 3:1 for 3 hours, the purity of carbon nanotubes is 99%, and the purity of graphene is 99%, so as to obtain the mixed material;

[0049] (2) Add the mixed material into the acid solution, heat and reflux in a water bath at 80°C for 2 hours, then dilute with deionized water and wash until neutral, and obtain the acidified mixed material after separation and drying; the quality of the mixed material The volume ratio to the acid solution is 3:100g / mL, and the acid solution is formed by mixing concentrated sulfuric acid with a mass fraction of 98% and concentrated nitric acid with a mass fraction of 65% in a volume ratio of 3:1;

[0050] (3) Add the acidified mixed material into the sensitization solut...

Embodiment 3

[0057] A kind of preparation method of composite metal layer plating carbon nanotube / graphene composite material of the present invention, comprises the following steps:

[0058] (1) Adopting 3D powder mixing machine to mix carbon nanotubes and graphene according to the mass ratio of 2:1 for 3 hours, the purity of carbon nanotubes is 99%, and the purity of graphene is 99%, so as to obtain the mixed material;

[0059] (2) Add the mixed material into the acid solution, heat and reflux in a water bath at 80°C for 2 hours, then dilute with deionized water and wash until neutral, and obtain the acidified mixed material after separation and drying; the quality of the mixed material The volume ratio to the acid solution is 4:100g / mL, and the acid solution is formed by mixing concentrated sulfuric acid with a mass fraction of 98% and concentrated nitric acid with a mass fraction of 65% in a volume ratio of 3:1;

[0060] (3) Add the acidified mixed material into the sensitization solut...

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Abstract

The invention provides a preparation method of a composite metal layer plated carbon nanotube / graphene composite material. The preparation method comprises the following steps of uniformly mixing carbon nanotubes and graphene, adding a dispersant after pretreatment, and then forming a carbon nanotube / graphene film; under an inert atmosphere, using the film as a substrate, leading in reaction source gas of tungsten hexafluoride and molybdenum hexafluoride, leading in reducing gas, and making a reaction to obtain a carbon nanotube / graphite stratified material coated with tungsten and molybdenum;adding the stratified material into a copper plating solution, and then adding a reducing agent to make a reaction to obtain a composite metal layer plated carbon nanotube / graphene composite materialprecursor; and sintering the precursor to obtain a composite metal layer plated carbon nanotube / graphene composite material. According to the method, the surface of the carbon nanotube / graphene filmis coated with the tungsten and the molybdenum, the wettability of an interface between carbon and copper is greatly improved, the interface bonding strength is strengthened, and the mechanical properties, the electrical properties and the crocking resistance of the composite material are improved.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a method for preparing a composite metal layer coated carbon nanotube / graphene composite material. Background technique [0002] With the rapid development of electrified railways, the performance requirements of current receiving components of electric locomotives are higher. The electric locomotive pantograph slide is an important current-receiving part for the locomotive to introduce electric energy. The pantograph slide is an electrical contact material that requires high electrical conductivity, wear resistance and wear reduction. Developed countries have a long history of research on pantograph slide materials, and European and American countries have achieved relatively advanced results in theoretical research and application research on pantograph slide materials. Pantograph slides have mainly gone through the stages of metal slides, powder metallurgy slides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/14C23C16/02C23C18/40C22C1/05C22C1/10
CPCC22C1/05C23C16/02C23C16/14C23C18/40
Inventor 甘雪萍赵琪周科朝李周
Owner CENT SOUTH UNIV
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