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A kind of preparation method of graphene copper composite wire

A composite wire and graphene technology, applied in conductive materials, conductive materials, metal/alloy conductors, etc., can solve the problems of complex atmosphere control and high preparation cost, and achieve the effects of shortening preparation time, simple method and short preparation process

Active Publication Date: 2017-09-15
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method generally requires a high-vacuum system, complex atmosphere control and a rapid heating and cooling system, and the preparation cost is relatively high.
[0004] On the other hand, the traditional method of preparing copper-based composites still needs to be further improved, and the uniformity of the reinforcing phase needs to be further improved, while reducing the processing flow and reducing costs

Method used

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  • A kind of preparation method of graphene copper composite wire
  • A kind of preparation method of graphene copper composite wire
  • A kind of preparation method of graphene copper composite wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:

[0033] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the mass of graphene oxide; the concentration of graphene oxide in the precursor solution is 2.5 mg / mL; the mixed solvent is mixed with water and ethanol at a volume ratio of 1:10 Made; the power of the ultrasonic oscillation is 550W;

[0034] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The temperature is 135°C, and the d...

Embodiment 2

[0043] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:

[0044] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the mass of graphene oxide; the concentration of graphene oxide in the precursor solution is 0.5 mg / mL; the mixed solvent is mixed with water and ethanol at a volume ratio of 1:10 Made; the power of the ultrasonic oscillation is 100W;

[0045] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The drying treatment is carried out...

Embodiment 3

[0054] The preparation method of graphene copper composite wire in the present embodiment comprises the following steps:

[0055] Step 1, dissolving graphene oxide as a precursor in a mixed solvent, adding polyvinylpyrrolidone or N-methylpyrrolidone as a stabilizer, and stirring and dissolving under ultrasonic vibration conditions to obtain a precursor solution; the polyvinylpyrrolidone or The amount of N-methylpyrrolidone added is 1% of the graphene oxide mass; the concentration of graphene oxide in the precursor solution is 5 mg / mL; the mixed solvent is composed of dimethylformamide and ethanol in a volume ratio of 1 : 10 mixed; the power of the ultrasonic oscillation is 1000W;

[0056] Step 2, the precursor solution described in step 1 is applied to the copper strip by dipping and pulling method to obtain a copper strip covered with a graphene oxide coating, and then the copper strip coated with a graphene oxide coating is placed on the copper strip The drying treatment is...

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Abstract

The invention discloses a preparation method of a graphene copper composite wire. The method comprises the following steps: 1, dissolving graphene oxide in a mixed solvent, adding a stabilizer, and dissolving the stabilizer to obtain a precursor solution; 2, coating the precursor solution on a copper strip by using a soak-pulling method to obtain the copper strip coated with a graphene oxide coating, and then drying; placing the copper strip coated with the graphene oxide coating in a continuous atmosphere furnace, implementing lead connection and vacuum pumping, and reducing the graphene oxide coating on the copper strip by introducing reducing gas to obtain the copper strip coated with a graphene film; 4, winding the copper strip on a copper rod, and placing into a copper jacket to obtain a preassembly body; 5, implementing hot extrusion on the preassembly body to obtain a graphene copper rod; and 6, drawing the graphene copper rod to obtain the graphene copper composite wire of which the cross section is circular. According to the preparation method disclosed by the invention, the graphene copper composite wire with good mechanical properties and conductive properties can be prepared through winding, extrusion and drawing.

Description

technical field [0001] The invention belongs to the technical field of copper wire preparation, and in particular relates to a preparation method of graphene-copper composite wire. Background technique [0002] Graphene is a hexagonal close-packed two-dimensional crystal composed of a single layer of carbon atoms. It is the thinnest two-dimensional material found so far, and it exhibits many unique physical and chemical properties in terms of electricity, mechanics, and optics. For example, graphene is strong, its breaking strength is 200 times higher than the best steel, and its stretching range can reach 20% of its own size; graphene has the strongest electrical and thermal conductivity, and its resistivity is lower than that of copper or silver. Introducing graphene into metal materials can further improve the electrical conductivity and mechanical properties of the material. Realizing the excellent properties of graphene in composite materials through novel preparation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/02H01B1/04
CPCH01B1/026H01B1/04H01B13/00
Inventor 金利华梁明冯建情王鹏飞王耀李成山张平祥
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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