Method for preparing carbon nanotube linear structure

Abstract

The invention relates to a method for preparing a carbon nanotube linear structure. The method comprises the following steps of: providing a plurality of substrates; pulling the carbon nanotube array along a pulling membrane at the angle of 0 to 50 DEG with the growth surface of each substrate to obtain a plurality of carbon nanotube membranes; and providing a reference position, wherein each substrate is provided with a growth surface with a carbon nanotube array and the growth surfaces of the plurality of substrates are arranged in the different planes; and the reference position is combined with the plurality of carbon nanotube membranes to form a carbon nanotube linear structure.

Description

technical field [0001] The invention relates to a method for preparing a carbon nanotube structure, in particular to a method for preparing a carbon nanotube linear structure. Background technique [0002] Carbon nanotubes are hollow tubular objects rolled from graphene sheets discovered by Japanese scientist Professor Sumio Iijima in 1991. They 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, etc. However, the current application of carbon nanotubes is basically at the microscopic scale, so it is difficult to operate. Therefore, the assembly of carbon nanotubes into a macroscopic structure is of great significance for the application of carbon nanotubes. [0003] Fan Shoushan and others disclosed in the article Spinning Continuous CNT Yarns (Nature, 2002, 419:801) that a...

AI Technical Summary

Problems solved by technology

Compared with the carbon nanotube wire, the mechanical strength of the carbon nanotube wire has a greater increase, but the diameter of the carbon nanotube wire is limited by the size of the carbon nanotube array, and the carbon nanotube array is limited by the size of the substrate, so that The mechanical strength and toughness of the carbon nanotube filaments are still limited

Therefore, its application is limited to some extent

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