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Single-walled carbon nanotube transparent electrothermal film and preparation method thereof

A technology of single-walled carbon nanotubes and electric heating film, which is applied in the direction of carbon nanotubes, nanocarbons, electric heating devices, etc., to achieve the effects of simple operation, improved conductivity, and excellent heating performance

Pending Publication Date: 2022-03-18
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, carbon nanotubes prepared by floating catalytic chemical vapor deposition have not been directly used in the preparation of electrothermal films.

Method used

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  • Single-walled carbon nanotube transparent electrothermal film and preparation method thereof
  • Single-walled carbon nanotube transparent electrothermal film and preparation method thereof
  • Single-walled carbon nanotube transparent electrothermal film and preparation method thereof

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Effect test

Embodiment 1

[0039] Single-walled carbon nanotubes were prepared by floating catalytic chemical vapor deposition, and the carbon nanotubes were sucked and filtered onto the filter membrane by a vacuum pump at the outlet. , 30min, 60min and 90min, transfer the single-wall carbon nanotube film deposited on the filter membrane to the PET substrate by pressing method, then cut it to a size of 2.0cm in length and 1.5cm in width, and stick it on the edge with a length of 1.5cm , a copper foil tape with a width of 2mm to obtain a single-walled carbon nanotube electrothermal film, see figure 1 (a), the transmission spectra of carbon nanotube films obtained at different suction filtration times are as follows figure 1 As shown in (b), it can be seen that the present invention can regulate the light transmittance of the single-walled carbon nanotube film by controlling the suction filtration time. Scanning electron microscopy (SEM) of single-walled carbon nanotube films figure 2 As shown, the car...

Embodiment 2

[0041] Single-walled carbon nanotubes were prepared by floating catalytic chemical vapor deposition, and the carbon nanotubes were sucked onto the filter membrane by a vacuum pump at the outlet. Transfer the single-walled carbon nanotube film deposited on the filter membrane to the PET substrate by pressing method, then cut it to a size of 4.0 cm in length and 4.0 cm in width, and stick a copper foil tape of 4.0 cm in length and 3 mm in width on the edge , to obtain single-walled carbon nanotube electrothermal film. The light transmittance of the single-walled carbon nanotube film can be regulated by controlling the suction and filtration time. The scanning electron microscope shows that the carbon nanotubes prepared by the method have high purity, and the carbon nanotubes are in close contact. When the filtration time is 30 minutes, the measured light transmittance of the carbon nanotube film is 83.3%, and the corresponding surface resistance is 588.4Ω / sq. Then use gold chl...

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Abstract

The invention discloses a single-walled carbon nanotube transparent electrothermal film and a preparation method thereof, and belongs to the technical field of electrothermal films. Single-walled carbon nanotubes prepared by a floating catalytic chemical vapor deposition method are subjected to suction filtration through a vacuum pump to a filter membrane with a certain size, single-walled carbon nanotube films with different light transmittances are obtained by controlling suction filtration time, the films are transferred to a substrate through a pressing method, and a single-walled carbon nanotube / substrate film is obtained. And cutting the single-walled carbon nanotube into a specific size, and pasting copper foil adhesive tapes with corresponding sizes on two opposite edges of the single-walled carbon nanotube to obtain the single-walled carbon nanotube transparent electrothermal film, and doping gold chloride to obtain the gold chloride doped single-walled carbon nanotube electrothermal film. The prepared single-walled carbon nanotube transparent electrothermal film is excellent in conductivity, the Schottky barrier between the carbon nanotubes can be reduced through gold chloride doping, the film can be densified, and the heating performance of the electrothermal film is improved through the combined action of gold chloride doping and gold chloride doping.

Description

technical field [0001] The invention belongs to the technical field of electrothermal film, and in particular relates to a single-walled carbon nanotube transparent electrothermal film and a preparation method thereof. Background technique [0002] Transparent electrothermal film has a wide range of applications in different modern technology fields, such as smart windows, defoggers, thermotherapy pads or photovoltaic systems. Generally, the most widely used electrothermal film material is indium tin oxide (ITO). However, on the one hand, due to the low reserves of indium element and the complex preparation process of ITO thin films, ITO is brittle and unsuitable for flexible thin films. Therefore, the application of ITO as an electrothermal film in the future is still subject to certain restrictions. In view of this, it is imperative to find alternative materials for ITO, and carbon nanotubes, especially single-walled carbon nanotubes, have become the new generation of ele...

Claims

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Application Information

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IPC IPC(8): C01B32/159C01B32/16C01B32/168H05B3/14H05B3/20E06B7/12
CPCC01B32/159C01B32/16C01B32/168H05B3/145H05B3/20E06B7/12
Inventor 廖永平董浩浩丁远龙闫俊李红
Owner DALIAN POLYTECHNIC UNIVERSITY
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