A carbon nanotube wire rod, a preparing method thereof, a preparing device and applications

A technology for carbon nanotubes and preparation devices, applied in chemical instruments and methods, carbon compounds, textiles and papermaking, etc., can solve the problems of complex preparation process, poor orientation of carbon nanotubes, and high production costs, and achieve improved stability and reliability. Controllability, improve the generation rate, improve the effect of electrical conductivity

Inactive Publication Date: 2017-02-15
赵春田 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a carbon nanotube wire and its preparation method, preparation device and application, so as to solve the problems of high production cost, complicated preparation process and poor orientation of carbon nanotubes in existing carbon nanotubes

Method used

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  • A carbon nanotube wire rod, a preparing method thereof, a preparing device and applications

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preparation example Construction

[0037] In another typical embodiment of the present application, a method for preparing a carbon nanotube wire is provided. The preparation method includes: mixing a liquid carbon source with a catalyst to form a raw material liquid; atomizing the raw material liquid to obtain an atomized Raw materials; and using the carrier gas to guide the flow direction of the atomized raw materials, and make the atomized raw materials undergo catalytic reactions under heating conditions to continuously generate carbon nanotube wires.

[0038] The principle of carbon nanotube preparation is that under the joint action of heating and catalyst, the liquid carbon source is decomposed into atomic carbon and precipitated on the surface of the catalyst to form carbon nanotubes.

[0039] The preparation reaction of carbon nanotubes after the liquid carbon source and the catalyst form a mixed solution is conducive to making the reaction raw materials more uniform, thereby improving the stability and...

Embodiment 1

[0065] The liquid carbon source tetrahydrofuran and the catalyst ferrocene are mixed according to the ratio of adding 150 mg of ferrocene catalyst per ml of tetrahydrofuran to prepare a raw material solution.

[0066] The above raw material solution was atomized at 50 kHz to obtain an atomized raw material.

[0067]Under the guidance of carrier gas with a rate of 9000 ml / min (the flow ratio of argon and hydrogen is 3:1) and a temperature of 1450 ° C, under the conditions of normal pressure, the above-mentioned atomized raw materials are subjected to a catalytic reaction to obtain carbon nanotube wires .

[0068] The above-mentioned carbon nanotube wires are collected using a carbon nanotube wire collection device. Among them, the density of carbon nanotube wire is 900kg / m 3 , Young's modulus is 250GPa, conductivity is 1.0×10 7 S m -1 , the maximum current load is 6000A / mm 2 , The tensile breaking strength is 1.5GPa.

Embodiment 2

[0070] The liquid carbon source xylene and the catalyst ferrocene are mixed according to the ratio of adding 50 mg of ferrocene catalyst per milliliter of xylene to prepare a raw material solution.

[0071] The above raw material solution was atomized at 50 kHz to obtain an atomized raw material.

[0072] Under the guidance of a carrier gas with a rate of 9000 ml / min (the flow ratio of argon and hydrogen is 3:1) and a temperature of 1150 ° C, under the conditions of normal pressure, the above-mentioned atomized raw materials are subjected to a catalytic reaction to obtain carbon nanotube wires .

[0073] The above-mentioned carbon nanotube wires are collected using a carbon nanotube wire collection device. Among them, the density of carbon nanotube wire is 750kg / m 3 , Young's modulus is 180GPa, conductivity is 8×10 6 S m -1 , the maximum current load is 5500A / mm 2 , The tensile breaking strength is 1.35GPa.

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Abstract

A carbon nanotube wire rod, a preparing method thereof, a preparing device and applications are provided. The device includes a raw material liquid supplying unit used for providing a liquid mixture of a liquid-state carbon source and a catalyst, an atomization unit connected to the raw material liquid supplying unit through a raw material liquid conveying pipeline, a reacting unit connected to the atomization unit through a raw material conveying pipeline provided with a carrier gas inlet, and a heating unit used for providing heat to the reacting unit. Through the device, carbon nanotubes grow along a carrier gas flowing direction, thus facilitating increase of control of a carbon nanotube wire rod continuous production process, producing carbon nanotube wire rods meeting different requirements, and further improving comprehensive properties of the carbon nanotube wire rod, such as conductivity and tensile strength.

Description

technical field [0001] The invention relates to the field of carbon nanotube wire preparation, in particular to a carbon nanotube wire and its preparation method, preparation device and application. Background technique [0002] Currently widely used wires and related products (including conductive metal wires, non-conductive cables, hinges, etc.), due to their own quality, corrosion resistance, wear resistance, strength, bending fatigue life and other factors, make their performance or Service life is affected. [0003] Take the widely-produced wired earphones as an example (the coil part of wireless earphones and microphones is also applicable), the earphones include connecting wires (metal wires) and the voice coil (the coil that causes the diaphragm to produce sound) and the diaphragm in the permanent magnetic field. earplugs / headphones. [0004] Since the earphone cable is repeatedly stretched and bent during use, the earphone cable is easily damaged and broken, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/166H01B13/00D07B5/00
CPCC01P2006/10C01P2006/40D07B5/00D07B2205/3007D07B2401/2025H01B13/00
Inventor 赵春田赵瑶韦进全崔贤
Owner 赵春田
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