Unlock instant, AI-driven research and patent intelligence for your innovation.

Graphene-enhanced copper-based composite material loaded with copper and preparation method

A technology of copper-based composite materials and graphene, which is applied in metal processing equipment, coating, transportation and packaging, etc., can solve the problems of poor electrical conductivity of reinforced copper-based composite materials, and achieve excellent comprehensive performance, uniform dispersion, and easy solution The effect of reunion

Inactive Publication Date: 2018-10-09
XIAN UNIV OF TECH
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a graphene-reinforced copper-based composite material loaded with copper, which solves the problem of traditional Al 2 o 3 Poor electrical conductivity of reinforced copper matrix composites

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Graphene-enhanced copper-based composite material loaded with copper and preparation method
  • Graphene-enhanced copper-based composite material loaded with copper and preparation method
  • Graphene-enhanced copper-based composite material loaded with copper and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A copper-loaded graphene-reinforced copper-based composite material provided by the present invention is composed of the following components by mass percentage: Cu 97-99.9%, copper-loaded graphene 0.1-3%, and the sum of the mass percentages of the above components is 100%, and the mass proportion of copper element in the copper-loaded graphene is 24.02%-28.22%. A preparation method flow chart of a copper-loaded graphene-reinforced copper-based composite material is as follows figure 1 As shown, the specific operation steps are as follows:

[0028] Step 1, weighing the following materials according to mass percentage: graphene oxide 15-30%, copper nitrate 70-85%, and the sum of the mass percentages of the above components is 100%;

[0029] Step 2, adding the graphene oxide to deionized water, stirring for 30 minutes and continuing to ultrasonically disperse for 90 minutes to obtain a graphene oxide solution;

[0030] Step 3, dissolving the copper nitrate in a mass con...

Embodiment 1

[0039] Step 1, weighing the following materials according to mass percentage: graphene oxide 15%, copper nitrate 85%;

[0040] Step 2, adding the graphene oxide to deionized water, stirring for 30 minutes and continuing to ultrasonically disperse for 90 minutes to obtain a graphene oxide solution;

[0041] Step 3, dissolving the copper nitrate in a mass concentration of 99.7% alcohol solution, the copper nitrate and alcohol mass ratio is 1:15, to obtain the copper nitrate solution;

[0042] Step 4, adding the copper nitrate solution dropwise to the graphene oxide solution, stirring during the dropping process, continuing to stir for 30 minutes after the dropwise addition, and then performing ultrasonic treatment for 60 minutes to obtain a mixed solution;

[0043]Step 5, prepare 2mol / L sodium hydroxide solution, use sodium hydroxide solution to adjust the pH value of the mixed solution to 9 to obtain the adjustment solution, then add hydrazine hydrate with a mass concentration ...

Embodiment 2

[0049] Step 1, weighing the following materials according to mass percentage: graphene oxide 30%, copper nitrate 70%;

[0050] Step 2, adding the graphene oxide to deionized water, stirring for 30 minutes and continuing to ultrasonically disperse for 90 minutes to obtain a graphene oxide solution;

[0051] Step 3, dissolving the copper nitrate in a mass concentration of 99.7% alcohol solution, the copper nitrate and alcohol mass ratio is 1:35, to obtain the copper nitrate solution;

[0052] Step 4, adding the copper nitrate solution dropwise to the graphene oxide solution, stirring during the dropping process, continuing to stir for 30 minutes after the dropwise addition, and then performing ultrasonic treatment for 60 minutes to obtain a mixed solution;

[0053] Step 5, prepare 2mol / L sodium hydroxide solution, use sodium hydroxide solution to adjust the pH value of the mixed solution to 11 to obtain the adjustment solution, then add hydrazine hydrate with a mass concentratio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a graphene-enhanced copper-based composite material loaded with copper and a preparation method. The preparation method comprises the following preparation steps: preparing graphene oxide and a copper ion solution, mixing the graphene oxide with the copper ion solution, adjusting the pH value, adding a reducing agent, then transferring the mixture into a water bath kettle to be subjected to reaction, centrifugally washing the reaction product, and drying the washed reaction product to obtain graphene powder loaded with copper particles; and dissolving the graphene powder loaded with copper and copper powder in acetone to be stirred and dried to obtain graphene and copper powder composite powder loaded with copper, and performing mechanical mixing, pressing and hot pressed sintering on the composite powder to finally obtain the graphene-enhanced copper-based composite material loaded with copper. By adopting the method, copper particles can be introduced into graphene sheet layers to effectively solve the problem of easy agglomeration of graphene, and the graphene can be uniformly dispersed on a metal matrix to obtain a graphene-enhanced copper-based bulk composite material with excellent comprehensive properties.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a graphene-reinforced copper-based composite material loaded with copper, and also relates to a preparation method of the copper-based composite material. Background technique [0002] Copper-based composite materials have excellent mechanical and physical properties, and are widely used in switch contacts, various control connectors in microelectronics and electrical control, resistance welding electrodes, electromagnetic gun track systems, microwave tubes, etc. . Although traditional particle-reinforced and fiber-reinforced copper matrix composites have good mechanical properties, they have low electrical and thermal conductivity. With the development of electrical appliances towards miniaturization, multi-function and high power, higher performance requirements are put forward for copper-based composite materials, such as excellent thermal conductivity and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C9/00B22F1/02C22C1/05B22F3/14
CPCC22C1/05C22C9/00B22F3/14B22F2998/10B22F1/17B22F1/0003
Inventor 王献辉杨洁张会王良子
Owner XIAN UNIV OF TECH