Preparation method of carbon nanotube composite wire

A carbon nanotube composite and carbon nanotube fiber technology, which is used in the equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, electrical components, etc., can solve the problem of poor conductivity, low conductivity, and low strength. problems, to achieve the effect of increasing strength and electrical conductivity, improving interfacial bonding force, and reducing internal stress

Active Publication Date: 2016-08-31
SUZHOU CREATIVE CARBON NANOTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the conductive fibers used in the market are mainly various types of metal wires, but the metal wires have poor flexibility, high density and low strength, and show more and more incompatibility in functional intelligent applications; another type has conductive fibers. Permanent carbon fibers also have the same problem, and there are also disadvantages such as poor electrical conductivity and obvious brittleness.
In response to these problems, in recent years, many researchers have used various methods to prepare composite conductive fibers in various forms, such as filling multi-w

Method used

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  • Preparation method of carbon nanotube composite wire
  • Preparation method of carbon nanotube composite wire
  • Preparation method of carbon nanotube composite wire

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Effect test

Embodiment 1

[0042] Select carbon nanotube fibers with a diameter of 100 microns and wind them on the output shaft 11. One end of the carbon nanotube fibers is released from the output shaft 11, and after being in contact with the conductive electrode 13, it is immersed in the electroplating solution 15 to stretch the carbon nanotubes. Fiber and its collection shaft 12, the rotating speed of setting collection shaft and output shaft is 5r / min. The concentration of copper sulfate pentahydrate in the electroplating solution is 120g / L, the concentration of sulfuric acid is 0.1mol / L, the temperature of the electroplating solution is kept at 25°C, and the electroplating is performed by using a pulse power supply with a current density of 0.01A / cm 2 , pulse width 0.25s ( Figure 6a ), the pulse interval is 2s, and the current disconnection time is 2s, and the carbon nanotube composite wire 18 is prepared. Its fiber cross-section is as Figure 6b As shown, it can be clearly seen that there are ...

Embodiment 2

[0044] Select carbon nanotube fibers with a diameter of 30 microns and wind them on the output shaft 11. One end of the carbon nanotube fibers is released from the output shaft 11, and after being in contact with the conductive electrode 13, it is immersed in the electroplating solution 15 to stretch the carbon nanotubes. Fiber and its collection shaft 12, the rotating speed of setting collection shaft and output shaft is 5r / min. The concentration of copper sulfate pentahydrate in the electroplating solution is 140g / L, the concentration of sulfuric acid is 0.1mol / L, the temperature of the electroplating solution is kept at 25°C, and the electroplating is performed by using a pulse power supply with a current density of 1A / cm 2 , pulse width 0.05s ( Figure 7a ), the pulse interval is 2s, and the current disconnection time is 2s, and the carbon nanotube composite wire 18 is prepared. Its fiber cross-section is as Figure 7b As shown, it can be clearly seen that there are copp...

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Abstract

The invention provides a preparation method of a carbon nanotube composite wire. The preparation method comprises the following steps of: preparing carbon nanotube fiber; constructing an electroplating device, wherein the electroplating device comprises a positive electrode and an electroplating liquid arranged in an electroplating tank; winding the carbon nanotube fiber through an output shaft, contacting the carbon nanotube fiber with a conductive electrode and immersing the carbon nanotube fiber into the electroplating liquid; and using a switched-on pulse power supply to carry out electroplating, and preparing and collecting the carbon nanotube composite wire. Compared with the prior art, the pulse electroplating method is adopted, copper nano-crystal grains are directly and uniformly deposited on the surface of the carbon nanotube fiber and in the intervals among carbon nanotubes, the interface binding force between the carbon nanotubes and copper layers is effectively improved, the interaction among crystal boundaries effectively increases the strength and conductivity of the carbon nanotube composite wire, and by adopting the method, the carbon nanotube composite wire light in weight, high in conductivity and high in strength can be prepared.

Description

technical field [0001] The invention relates to the field of nanomaterial manufacturing, in particular to a method for preparing a carbon nanotube composite wire. Background technique [0002] With the rapid development of electronic information technology, people have higher and higher requirements for the light weight and flexibility of electronic products, and the related product development has also attracted extensive attention in the industry. The conductive fibers of the missing transmission channels are also in urgent need of development in terms of functionality, intelligence, elasticity, and flexibility. At present, the conductive fibers used in the market are mainly various types of metal wires, but the metal wires have poor flexibility, high density and low strength, and show more and more incompatibility in functional intelligent applications; another type has conductive fibers. Permanent carbon fibers also have the same problem, and there are also disadvantage...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/22
CPCH01B13/00H01B13/0026H01B13/22H01B13/222
Inventor 叶远航刘丹丹侯立干金赫华李清文
Owner SUZHOU CREATIVE CARBON NANOTECH
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