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Novel copper and copper-alloy coated graphite powder and graphene material and preparation method thereof

A technology of graphite powder and copper alloy, which is applied in the coating process of metal materials, metal processing equipment, transportation and packaging, etc. It can solve the problem of uneven mixing of metal and graphite materials, difficulty in direct compression molding of graphite materials, and sparse distribution, etc. problems, to achieve the effect of improving molding conditions, reducing production costs, and improving uniformity

Active Publication Date: 2016-10-26
姚世华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to make up for the defects such as partial distribution in the prior art, solve the problems of uneven mixing of metal and graphite materials, difficulty in direct compression molding of graphite materials, and difficulty in direct powder metallurgy due to complicated processes, etc., and provide a copper and Copper alloy clad graphite powder and graphene new material and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of copper and copper alloy clad graphite powder and new graphene material, it is made up of the raw material of following weight part:

[0024] Copper sulfate 40, stannous sulfate 3, zinc sulfate 5, graphite powder 30, graphene 25, reduction aid 0.8, aluminum dihydrogen phosphate 1, composite aid 0.1.

[0025] A kind of new material of copper and copper alloy clad graphite powder and graphene, described reducing agent is made up of the raw material of following weight part:

[0026] Hydrazine hydrate 60, sodium hypophosphite 20, polyethylene glycol (6000) 5, sodium bicarbonate 6;

[0027] The preparation method of described reduction aid comprises the following steps:

[0028] Add the above-mentioned sodium hypophosphite into a water bath at 90°C, heat and stir for 20 minutes, add the above-mentioned polyethylene glycol (6000), continue to heat and stir for 4 minutes, discharge and cool, mix with the remaining raw materials, stir evenly, and obtain the reduced ...

Embodiment 2

[0036] A new copper and copper alloy clad graphite powder and graphene material is characterized in that it is composed of the following raw materials in parts by weight:

[0037] Copper sulfate 20, stannous sulfate 4, zinc sulfate 4, graphite powder 30, graphene 25, reduction aid 0.8-1, aluminum dihydrogen phosphate 2, composite aid 0.2.

[0038] A kind of new material of copper and copper alloy clad graphite powder and graphene, described reducing agent is made up of the raw material of following weight part:

[0039] Hydrazine hydrate 70, sodium hypophosphite 10, polyethylene glycol (6000) 5, sodium bicarbonate 4;

[0040] The preparation method of described reduction aid comprises the following steps:

[0041] Add the above sodium hypophosphite into a water bath at 90°C, heat and stir for 20 minutes, add the above polyethylene glycol (6000), continue heat and stir for 47 minutes, discharge and cool, mix with the remaining raw materials, stir evenly, and obtain the reduced...

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Abstract

The invention discloses a novel copper and copper-alloy coated graphite powder and graphene material. The material is composed of the following raw materials in parts by weight: 20 to 50 parts of copper sulfate, 3 to 5 parts of stannous sulfate, 2 to 5 parts of zinc sulfate, 20 to 50 parts of graphite powder, 20 to 25 parts of graphene, 0.8 to 1 part of a reduction aid, 1 to 2 parts of aluminum dihydrogen phosphate and 0.1 to 0.2 part of a composite aid. According to the invention, a metal material can completely coats surfaces of graphite and graphene particles, and a coating layer is gradually formed, so an entirety is formed, and disadvantages like non-uniformity of material mixing are solved; a metal layer coats surfaces of graphite and graphene, and the problems of difficult direct molding and difficult powder metallurgy of a graphite material are effectively improved, so production efficiency is greatly increased, and molding conditions are improved; and the surface of the graphite material is completely coated with a layer of metal, so uniformity of the graphite and metal is increased and improved, and electrical conductivity and thermal conductivity are improved at the same time.

Description

technical field [0001] The invention mainly relates to the field of new materials, in particular to a copper and copper alloy-coated graphite powder and graphene new material and a preparation method thereof. Background technique [0002] Most of the existing mixed materials of copper and graphite use a single copper powder and copper alloy powder, and add graphite powder according to a certain ratio, then put it into a mixer, and mix it for a certain period of time to form a mixed powder. Or graphite powder is pressed into shape by adding pitch, and then the pitch is decomposed by high-temperature graphitization to form graphite products. The composite materials obtained by these traditional methods have certain defects. First, the density and quality of metal are different from those of graphite and graphene. The difference is very huge. The effect of uniform distribution of multiple materials cannot be achieved through long-term mixing of mixing equipment. At the same tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04B22F1/02C23C18/40
CPCC23C18/40B22F1/17
Inventor 姚世华
Owner 姚世华
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