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A kind of preparation method of graphene-carbon nanotube composite fiber

A carbon nanotube composite, carbon nanotube fiber technology, applied in the chemical characteristics of fibers, textiles and papermaking, conjugated rayon, etc. Poor performance and other problems, to achieve the effect of low production cost, simple preparation method, and enhanced interface bonding force

Active Publication Date: 2022-05-17
深圳前海量子翼纳米碳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the graphene-carbon nanotube composite fibers in the prior art, the interfacial binding force between graphene and carbon nanotubes is not strong enough, which affects the electrical conductivity and electromagnetic shielding performance of the product.
In addition, the graphene-carbon nanotube composite fiber in the prior art also has the defects of poor flexibility and high production cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of graphene-carbon nanotube composite fiber, it comprises the following steps:

[0033] Step 1, growing carbon nanotube aggregates with a vertical furnace, and using the carbon nanotube aggregates as a matrix material; wherein, a carbon source, a catalyst, and a carrier gas are introduced into the vertical furnace to grow carbon nanotube aggregates; In this embodiment, the reaction temperature of the vertical furnace is set to 1450°C;

[0034] In this embodiment, the carbon source is methanol; the catalyst is ferrocene; the carrier gas is hydrogen;

[0035] Step 2, the graphene solution is placed in the pool to form a graphene solution pool, and the graphene solution pool is placed under the vertical furnace; in the present embodiment, the graphene is dispersed in the ethanol solution;

[0036] Step 3, immerse the guide roller in the graphene solution pool, and then soak the carbon nanotube aggregates around the guide roller in the graphene solutio...

Embodiment 2

[0043] A preparation method of graphene-carbon nanotube composite fiber, it comprises the following steps:

[0044] Step 1, growing carbon nanotube aggregates with a vertical furnace, and using the carbon nanotube aggregates as a matrix material; wherein, a carbon source, a catalyst, and a carrier gas are introduced into the vertical furnace to grow carbon nanotube aggregates; In this embodiment, the reaction temperature of the vertical furnace is set to 1350°C;

[0045] In this embodiment, the carbon source is ethanol; the catalyst is cobaltocene; the carrier gas is argon;

[0046] Step 2, the graphene solution is placed in the pool to form a graphene solution pool, and the graphene solution pool is placed under the vertical furnace; in the present embodiment, the graphene is dispersed in deionized water;

[0047] Step 3, immerse the guide roller in the graphene solution pool, and then soak the carbon nanotube aggregates around the guide roller in the graphene solution pool ...

Embodiment 3

[0054] A preparation method of graphene-carbon nanotube composite fiber, it comprises the following steps:

[0055] Step 1, growing carbon nanotube aggregates with a vertical furnace, and using the carbon nanotube aggregates as a matrix material; wherein, a carbon source, a catalyst, and a carrier gas are introduced into the vertical furnace to grow carbon nanotube aggregates; In this embodiment, the reaction temperature of the vertical furnace is set to 1500°C;

[0056] In this embodiment, the carbon source is isopropanol; the catalyst is nickelocene; the carrier gas is nitrogen;

[0057] Step 2, the graphene solution is placed in the pool to form a graphene solution pool, and the graphene solution pool is placed under the vertical furnace; in the present embodiment, the graphene is dispersed in 50% ethanol / deionized aqueous solution;

[0058] Step 3, immerse the guide roller in the graphene solution pool, and then soak the carbon nanotube aggregates around the guide roller ...

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Abstract

The invention relates to the technical field of electromagnetic shielding materials, in particular to a preparation method of graphene-carbon nanotube composite fibers. The preparation method of the graphene-carbon nanotube composite fiber includes: step one, prepare carbon nanotube aggregates as a matrix material; step two, place the graphene solution pool under the vertical furnace; step three, place the carbon nanotube The tube aggregate is immersed in the graphene solution pool; Step 4, stretching; Step 5, drying; Step 6, collecting; Step 7, clustering and twisting. Compared with the prior art, the preparation method of the graphene-carbon nanotube composite fiber can effectively increase the graphene-carbon nanotube fiber because the carbon nanotube fiber with the graphene sheet layer collected by winding is bundled and twisted. The tensile strength of the tube fiber can be enhanced, and the interfacial bonding force between graphene and carbon nanotubes can be enhanced, thereby improving the electrical conductivity and electromagnetic shielding performance of the product, and making the obtained graphene-carbon nanotube composite fiber flexible. it is good.

Description

technical field [0001] The invention relates to the technical field of electromagnetic shielding materials, in particular to a preparation method of graphene-carbon nanotube composite fibers. Background technique [0002] With the rapid development and application of electromagnetic pulse weapons (nuclear electromagnetic pulse, high-power microwave weapons, electromagnetic bombs, etc.), the command and communication system in future wars will face an increasingly complex electromagnetic environment. The strong electromagnetic radiation produced by electromagnetic pulse weapons will seriously interfere and destroy the normal work of the command and communication system, and even cause the system to be completely paralyzed. Therefore, the important command and protection projects of our army have adopted electromagnetic protection measures to prevent the interference and destruction of electromagnetic pulses and ensure the safety of the command and communication system. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/18
CPCD01F8/18
Inventor 童潇李子轩葛爱雄廖太明
Owner 深圳前海量子翼纳米碳科技有限公司