Preparation method of carbon nanotube film
A carbon nanotube film and carbon nanotube technology, applied in the direction of carbon nanotubes, oriented carbon nanotubes, nanocarbons, etc., can solve the problems of carbon nanotube film rupture and difficulty in large-scale practical application, and achieve the effect of avoiding damage
Active Publication Date: 2017-06-06
TSINGHUA UNIV +1
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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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[0023] 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.
[0024] see figure 1 , the invention provides a method for preparing a carbon nanotube film, comprising the following steps:
[0025] 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;
[0026] S2, simultaneously stretching the elastic replacement substrate 30 in multiple directions, thereby increasing the area of the carbon nanotube array 10 while keeping the shape of the carbon nanotube array 10 unchanged; and
[0027] S3 , pulling the carbon nanotube film 40 from the carbon nanotube array 10 on ...
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Abstract
The invention provides a method for preparing a carbon nanotube film, comprising the following steps: providing a carbon nanotube array transferred to the surface of an elastic substituting substrate, the surface of the carbon nanotube array close to the elastic substituting substrate is the second surface, and the surface away from the elastic substituting substrate is Elasticity replaces the surface of the substrate as the first surface, and the morphology of the carbon nanotube array enables a carbon nanotube film to be continuously pulled out from the carbon nanotube array, the carbon nanotube film comprising a plurality of carbon nanotubes connected end to end tube; simultaneously stretching the elastic substituting substrate in multiple directions, thereby increasing the area of the carbon nanotube array while maintaining the shape of the carbon nanotube array; and replacing the carbon nanotubes on the substrate from the elastic The array pulls the carbon nanotube film.
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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IPC IPC(8): C01B32/16
CPCC01B32/16C01B32/164C01B32/168B82Y40/00C01B2202/08
Inventor 魏洋范守善
Owner TSINGHUA UNIV