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Preparation method of carbon nanotube film

A technology of carbon nanotube film and carbon nanotube, which is applied in the direction of carbon nanotube, nanocarbon, nanotechnology, etc., can solve the problems of limited length of carbon nanotube yarn and application limitation of carbon nanotube yarn, and achieve the goal of improving mechanical properties Effect

Active Publication Date: 2017-08-08
TSINGHUA UNIV +1
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Problems solved by technology

[0004] However, the preparation length of carbon nanotube yarns is currently limited by the size of carbon nanotube arrays. From a carbon nanotube array with a height of 200 microns grown on an existing 4-inch silicon wafer, the carbon nanotube yarns drawn The length of the carbon nanotube yarn is limited, which limits the application of this carbon nanotube yarn in the macroscopic

Method used

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  • Preparation method of carbon nanotube film
  • Preparation method of carbon nanotube film
  • Preparation method of carbon nanotube film

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preparation example Construction

[0027] Please also see Figure 1 to Figure 3 , the first embodiment of the present invention provides a method for preparing a carbon nanotube film 100, comprising the following steps:

[0028] S10, providing a plurality of carbon nanotube arrays 14, the plurality of carbon nanotube arrays 14 are arranged at intervals along a horizontal direction, and the horizontal direction is defined as an X direction;

[0029] S20, patterning the plurality of carbon nanotube arrays 14 to form a plurality of patterned carbon nanotube arrays, and naming them successively as the first patterned carbon nanotube array 10 and the second patterned carbon nanotube array 20. Up to the Nth patterned carbon nanotube array 40, each patterned carbon nanotube array has opposite first end points 102 and second end points 104, and the first end point 102 of each patterned carbon nanotube array is connected to The second end points 104 of adjacent patterned carbon nanotube arrays are adjacent, and the N i...

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Abstract

A method for preparing a carbon nanotube film, comprising the following steps: providing a plurality of carbon nanotube arrays arranged at intervals on the same straight line; processing the plurality of carbon nanotube arrays into a plurality of patterned carbon nanotube arrays; A carbon nanotube film is drawn from a patterned carbon nanotube array, and the carbon nanotube film is lapped on the previous patterned carbon nanotube array; obtained from the continuous stretching of the front patterned carbon nanotube array A carbon nanotube film is a carbon nanotube film. The invention also provides a carbon nanotube structure preform.

Description

technical field [0001] The invention relates to a preparation method of a carbon nanotube film. 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. [0003] Fan Shoushan and others disclosed a pure carbon nanotube yarn drawn from a super-aligned carbon nanotube array in Nature, 2002, 419:801, Spinning Continuous CNT Yarns. This carbon nanotube yarn includes multiple The carbon nanotube segments connected end to end under the action of van der Waals force, each carbon nanotube segment has approximately the same length, and each carbon nanotube segment is composed of a plurality of parallel carbon nanotubes, generally, this carbon nanotube segment The diameter of the bo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/16B82Y40/00
CPCC01B32/168Y10T428/24893
Inventor 姜开利柳鹏范守善
Owner TSINGHUA UNIV
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