Preparation method of grapheme/aluminum composite material monofilament for cables

A technology of aluminum composite materials and graphene, which is applied in the field of electrochemistry, can solve the problems of reduced electrical conductivity of graphene/aluminum composite materials, achieve the effects of improving electrical conductivity and mechanical properties, mixing uniformly, and overcoming graphene agglomeration

Active Publication Date: 2019-08-20
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a graphene / aluminum composite material monofilament with a graphene dispersed uniform wire diameter of 0.5mm, to solve the problem that the electrical conductivity of the graphene / aluminum composite material is reduced due to graphene agglomeration

Method used

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  • Preparation method of grapheme/aluminum composite material monofilament for cables
  • Preparation method of grapheme/aluminum composite material monofilament for cables
  • Preparation method of grapheme/aluminum composite material monofilament for cables

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Embodiment 1

[0024] A preparation method of graphene / aluminum composite monofilament, comprising the following steps:

[0025] (1) Take graphene powder and nano-aluminum powder, introduce the graphene powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then mix the graphene-absolute ethanol solution in a high-power ultrasonic environment Dispersion treatment was carried out under the environment, the ultrasonic time was 2h, and the graphene dispersion liquid with a concentration of 0.35mg / mL graphene was prepared; wherein, the rotating speed of the electromagnetic stirring was not lower than 800 rpm, and the power of the ultrasonic wave was not lower than 600W;

[0026] Introduce the nano-aluminum powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then disperse the aluminum powder-absolute ethanol mixed solution in a high-power ultrasonic environment, the ultrasonic time is 2h, and the pre...

Embodiment 2

[0035] A preparation method of graphene / aluminum composite monofilament, comprising the following steps:

[0036] (1) Take graphene powder and nano-aluminum powder, introduce the graphene powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then mix the graphene-absolute ethanol solution in a high-power ultrasonic environment Dispersion treatment was carried out under the environment, the ultrasonic time was 2h, and the graphene dispersion liquid with a concentration of 0.35mg / mL graphene was prepared; wherein, the rotating speed of the electromagnetic stirring was not lower than 800 rpm, and the power of the ultrasonic wave was not lower than 600W;

[0037] Introduce the nano-aluminum powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then disperse the aluminum powder-absolute ethanol mixed solution in a high-power ultrasonic environment, the ultrasonic time is 2h, and the pre...

Embodiment 3

[0042] A preparation method of graphene / aluminum composite monofilament, comprising the following steps:

[0043] (1) Take graphene powder and nano-aluminum powder, introduce the graphene powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then mix the graphene-absolute ethanol solution in a high-power ultrasonic environment Dispersion treatment was carried out under the environment, the ultrasonic time was 2h, and the graphene dispersion liquid with a concentration of 0.35mg / mL graphene was prepared; wherein, the rotating speed of the electromagnetic stirring was not lower than 800 rpm, and the power of the ultrasonic wave was not lower than 600W;

[0044] Introduce the nano-aluminum powder into absolute ethanol under the condition of electromagnetic stirring, the stirring time is 1h, then disperse the aluminum powder-absolute ethanol mixed solution in a high-power ultrasonic environment, the ultrasonic time is 2h, and the pre...

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Abstract

The invention discloses the preparation method of grapheme/aluminum composite material monofilament for cables. The preparation method comprises the following steps of preparing a graphene dispersionliquid and a nano aluminum powder dispersion liquid; mixing the nano aluminum powder dispersion liquid and the graphene dispersion liquid, and pressing into a plurality of nano aluminum powder-graphene prefabricated blocks; putting pure aluminum into an induction furnace, pressing the nano aluminum powder-graphene prefabricated blocks into an aluminum melt by using a graphite cover, then cooling the graphene aluminum melt, and pouring the graphene aluminum melt into a metal mold; heating the obtained grapheme/the aluminum composite material ingot, and carrying out extrusion deformation treatment to obtain a grapheme/aluminum composite material rod piece; annealing the grapheme/aluminum composite material rod piece, then carrying out 12 times of room-temperature drawing deformation to obtain the grapheme/aluminum composite material monofilaments, and finally annealing to obtain the grapheme/aluminum composite material monofilaments for the cables. The preparation method solves the problem that the conductivity of the graphene/aluminum composite material is reduced due to graphene agglomeration.

Description

technical field [0001] The invention relates to a preparation method of a graphene / aluminum composite monofilament for cables, belonging to the technical field of electrochemistry. Background technique [0002] In recent years, the sustained and rapid economic growth has driven the rapid development of the wire and cable industry. By 2012, the annual output value of China's cable industry has exceeded 900 billion yuan, becoming the second largest industry in the machinery industry after the automobile manufacturing industry. As the international copper price continues to rise, the price of traditional copper cables (copper accounts for more than 70% of the cost of the entire cable) is also rising. Finding current-carrying conductors that are less expensive than equivalent-quality copper cables can help with cable manufacturing costs. my country's aluminum resources are very rich and the price is relatively stable, resulting in the current trend of replacing copper with alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/00B21C1/00C22F1/04
CPCC22C1/1036C22C21/00B21C1/003C22F1/04C22C1/1047
Inventor 戚继球隋艳伟委福祥孟庆坤任耀剑
Owner CHINA UNIV OF MINING & TECH
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