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Preparation method of carbon nano-tube film

A carbon nanotube film, carbon nanotube technology, applied in the direction of carbon nanotubes, multi-wall carbon nanotubes, nanocarbons, etc., can solve the problems of carbon nanotube film rupture, difficult to large-scale practical application, etc., to avoid damage. Effect

Active Publication Date: 2015-10-14
TSINGHUA UNIV +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the carbon nanotube film pulled from the carbon nanotube array is an ultra-thin film formed only by the overlapping of carbon nanotubes through the mutual attraction of van der Waals force. When the carbon nanotube film is stretched, a little Inadvertently, it will cause the rupture of the carbon nanotube film, so this method is difficult for large-scale practical application

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  • Preparation method of carbon nano-tube film
  • Preparation method of carbon nano-tube film
  • Preparation method of carbon nano-tube film

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Embodiment Construction

[0020] The method for preparing the carbon nanotube film of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] see figure 1 , the invention provides a method for preparing a carbon nanotube film, comprising the following steps:

[0022] S1, provide a carbon nanotube array 10 transferred to the surface of the elastic replacement substrate 30, the shape of the carbon nanotube array 10 can make a carbon nanotube film 40 can be continuously pulled out from the carbon nanotube array 10, the carbon nanotube array 10 The nanotube film 40 includes a plurality of carbon nanotubes connected end to end;

[0023] S2, stretching the elastic replacement substrate 30 along the first direction, thereby increasing the length of the carbon nanotube array 10 on the elastic replacement substrate 30 in the first direction (x); and

[0024] S3, pulling the carbon nanotube film 40 from the carbon nanotube array 10 on the elastic ...

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Abstract

A method for forming a carbon nanotube film is provided. An elastic substitute substrate and a carbon nanotube array transferred on a surface of the elastic substitute substrate are used. The carbon nanotube array is configured for drawing a carbon nanotube film therefrom. The carbon nanotube film has carbon nanotubes joined end to end. The elastic substitute substrate is stretched along a first direction to increase a length of the carbon nanotube array along the first direction. The carbon nanotube film is drawn from the stretching carbon nanotube array along a second direction, the second direction is different from the first direction.

Description

technical field [0001] The invention relates to a method for preparing a carbon nanotube film, in particular to a method for preparing a carbon nanotube film obtained by pulling from a carbon nanotube array. Background technique [0002] Carbon nanotubes are hollow tubular objects rolled from graphene sheets, which have excellent mechanical, thermal and electrical properties, so they have broad application fields. Because the size of a single carbon nanotube is nanoscale, it is difficult to use it. People try to use multiple carbon nanotubes as raw materials to make a macroscopic carbon nanotube film with a larger size. For example, a macroscopic film-like structure formed by a plurality of carbon nanotubes, such as a carbon nanotube film. The Chinese invention patent with the notification number CN101458975B discloses a carbon nanotube film obtained directly from a carbon nanotube array. This carbon nanotube film has good transparency, has a macroscopic scale and is self-s...

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Application Information

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IPC IPC(8): C01B31/02B82Y30/00
CPCB82Y40/00C01B31/0253C01B32/16C01B32/164C01B32/168C01B2202/06
Inventor 魏洋范守善
Owner TSINGHUA UNIV