Preparation method of three-dimensional graphene film and three-dimensional graphene-copper composite cable

A graphene film, graphene technology, applied in the direction of graphene, single-layer graphene, chemical instruments and methods, etc., can solve the problem of low softening resistance temperature of pure copper contact wire, low strength of pure copper wire, increased electrical wear, etc. problems, to achieve the effect of not easily broken and broken, less layers, and resource saving

Pending Publication Date: 2019-01-25
SHANGHAI SIMBATT ENERGY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of pure copper wire is low, it is prone to disconnection, and the power grid fault is high; the softening temperature of pure copper contact wire is low, and its heat resistance is poor.
In addition, the main disadvantage exposed by pure copper contact wires is poor wear resistance. On high-speed and heavy-duty lines, as the power of traction electric locomotives increases, electrical wear increases, and its life is greatly shortened.

Method used

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  • Preparation method of three-dimensional graphene film and three-dimensional graphene-copper composite cable
  • Preparation method of three-dimensional graphene film and three-dimensional graphene-copper composite cable
  • Preparation method of three-dimensional graphene film and three-dimensional graphene-copper composite cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Step a: Using a 30cm*20cm nickel mesh as the reaction substrate, decontaminate the surface of the nickel mesh, place the nickel mesh in a 2% glacial acetic acid solution for 5 minutes, and then place it in deionized water for ultrasonic washing 5 minutes, and finally blow dry with cold air.

[0053] Step b: Use the CVD method to grow graphene on the surface of the nickel mesh, place the nickel mesh in a quartz boat, and place it in the constant temperature zone of the tube furnace of the CVD system. First, the temperature of the tube furnace is heated to 15°C / min. At 1000° C., during the heating process, hydrogen gas was introduced at a flow rate of 50 sccm, and argon gas was introduced at a flow rate of 100 sccm; then, the temperature and gas flow rate were kept unchanged for 60 minutes, and annealing was performed. Then, methane as a carbon source gas was fed at a flow rate of 10 sccm for growth, and the growth time was 25 minutes. During the growth process, the tempe...

Embodiment 2

[0061] Step a: Using a 30cm*20cm nickel mesh as the reaction substrate, decontaminate the surface of the nickel mesh, place the nickel mesh in a 2% glacial acetic acid solution for 5 minutes, and then place it in deionized water for ultrasonic washing 5 minutes, and finally blow dry with cold air.

[0062] Step b: Use the CVD method to grow graphene on the surface of the nickel mesh, place the nickel mesh in a quartz boat, and place it in the constant temperature zone of the tube furnace of the CVD system. First, the temperature of the tube furnace is heated to 15°C / min. At 900°C, during the heating process, hydrogen gas was introduced at a flow rate of 50 sccm, and argon gas was introduced at a flow rate of 100 sccm; then, the temperature and gas flow rate were kept unchanged for 60 minutes, and annealing was performed. Then, methane as a carbon source gas was fed at a flow rate of 10 sccm for growth, and the growth time was 25 minutes. During the growth process, the temperat...

Embodiment 3

[0070] Step a: the same as step a of the first embodiment.

[0071] Step b: Use the CVD method to grow graphene on the surface of the nickel mesh, place the nickel mesh in a quartz boat, and place it in the constant temperature zone of the tube furnace of the CVD system. First, the temperature of the tube furnace is heated to 15°C / min. At 1100° C., during the heating process, hydrogen gas was introduced at a flow rate of 50 sccm, and argon gas was introduced at a flow rate of 100 sccm; then, the temperature and gas flow rate were kept unchanged for 60 minutes, and annealing was performed. Then, methane as a carbon source gas was fed at a flow rate of 10 sccm for growth, and the growth time was 25 minutes. During the growth process, the temperature was kept unchanged, and the flow rate of argon gas was 300 sccm, and the flow rate of hydrogen was 40 sccm. Finally, the temperature is rapidly cooled, so that the temperature of the tube furnace is reduced to room temperature within...

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Abstract

The invention discloses a preparation method of a three-dimensional graphene film and a three-dimensional graphene-copper composite cable. The three-dimensional graphene film is prepared by the following steps: surface cleaning of a nickel screen, graphene growing by high-temperature CVD, soaking / high-temperature curing, substance etching and removal of PMMA; the three-dimensional graphene film has the advantages of few structural defects, few layers, large size and high quality. The graphene-copper composite cable is prepared by a traditional wire and cable conductor preparation technology, and has the advantages of simple process, low cost and easiness in implementing industrial production; the graphene in the conductor is of a 3D network structure, thus the conductor is superior to a pure-metal conductor in electrical conductivity, thermal conductivity and mechanical property.

Description

technical field [0001] The invention relates to the technical field of wire and cable preparation and nanomaterial synthesis, in particular to a preparation method of a three-dimensional graphene film and a three-dimensional graphene-copper composite cable. Background technique [0002] The wire and cable industry is an important supporting industry for economic construction and is widely used in various fields of the national economy. The conductors of wires and cables are mostly made of copper and aluminum, or silver or superconducting materials are used in some special fields. Copper conductors have superior electrical conductivity, corrosion resistance and mechanical properties, and their usage far exceeds that of aluminum conductors, making them the preferred material for cable conductors. Copper or copper alloy is the most commonly used material in wire and cable, with its low price, excellent electrical and thermal conductivity, and good plastic corrosion resistance....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/186H01B1/04
CPCH01B1/04C01B32/186C01B2204/02C01B2204/04
Inventor 马瑜王续杨倪亚钱天宝
Owner SHANGHAI SIMBATT ENERGY TECH CO LTD
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