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Stranded wire production method

A technology of twisted wire and evaporation method, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problem of high resistance at contact points, Carbon nanotube wires have low electrical conductivity and cannot replace metal wires, etc., and achieve the effect of simple preparation method and good electrical conductivity

Active Publication Date: 2009-08-05
TSINGHUA UNIV +1
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Problems solved by technology

However, since the above-mentioned carbon nanotube segments overlap each other to form a continuous carbon nanotube line, the resistance at the contact point is high, which in turn leads to the low electrical conductivity of the above-mentioned carbon nanotube line, which cannot replace metal wires for signal Transmission and electrical transmission field

Method used

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preparation example Construction

[0023] see figure 2 and image 3 , the preparation method of stranded wire in the embodiment of the present invention mainly comprises the following steps:

[0024] Step 1: providing a carbon nanotube structure 214 .

[0025] The carbon nanotube structure 214 can be a carbon nanotube film or a multi-layered carbon nanotube film. The carbon nanotube film includes a plurality of carbon nanotubes, there are gaps between adjacent carbon nanotubes, and the carbon nanotubes are parallel to the surface of the carbon nanotube film. The distance between the adjacent carbon nanotubes may be greater than the diameter of the carbon nanotubes. The carbon nanotube film may have a self-supporting structure. The so-called "self-supporting" means that the carbon nanotube film can maintain its own specific shape without being supported by a support body. The self-supporting carbon nanotube film includes a plurality of carbon nanotubes, and the plurality of carbon nanotubes are attracted t...

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Abstract

The invention relates to a method for preparing a twisted line, comprising the steps as follows: a carbon nano tube structure is provided; a conducting material is formed and attached on the surface of the carbon nano tube structure; and the carbon nano tube structure is twisted to form the twisted line.

Description

technical field [0001] The invention relates to a preparation method of a stranded wire, in particular to a preparation method of a carbon nanotube-based stranded wire. Background technique [0002] Carbon nanotubes are hollow tubes rolled from graphene sheets, which have excellent mechanical, thermal and electrical properties. Carbon nanotubes have a wide range of applications, for example, they can be used to make field effect transistors, atomic force microscope tips, field emission electron guns, nano templates and so on. However, at present, carbon nanotubes are basically applied at the microscopic scale, and the operation is difficult. Therefore, the assembly of carbon nanotubes into macroscopic structures is of great significance for the macroscopic application of carbon nanotubes. [0003] Fan Shoushan and others disclosed in Nature, 2002, 419: 801, Spinning Continuous CNT Yarns, a continuous pure carbon nanotube line can be drawn from a super-parallel carbon nanot...

Claims

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Application Information

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IPC IPC(8): H01B13/02H01B1/00H01B5/08C01B31/02C23C14/24C23C14/34
CPCH01B1/04H01B1/24H01B13/0026
Inventor 姜开利刘亮刘锴赵清宇翟永超范守善
Owner TSINGHUA UNIV
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