Device and method for preparing highly oriented carbon nanotube film or fiber and its microcomb method

A carbon nanotube film and carbon nanotube fiber technology, which is applied in the field of nanomaterials to achieve the effects of improving mechanical properties, improving load transfer efficiency, and increasing macroscopic maneuverability

Active Publication Date: 2020-07-17
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for preparing highly oriented carbon nanotube films or fibers by a micro-comb method to solve the problem of further high orientation and densification of carbon nanotube fibers and film materials prepared by the array method

Method used

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  • Device and method for preparing highly oriented carbon nanotube film or fiber and its microcomb method
  • Device and method for preparing highly oriented carbon nanotube film or fiber and its microcomb method
  • Device and method for preparing highly oriented carbon nanotube film or fiber and its microcomb method

Examples

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Effect test

Embodiment 1

[0052] Example 1: Please refer to figure 1 , the micro-comb preparation process of the highly oriented carbon nanotube film may include the following steps:

[0053] First, pull out a single-layer carbon nanotube film from the carbon nanotube array (refer to Nature, 2002, Volume 419, Issue6909);

[0054] Afterwards, the single-layer carbon nanotube film is continuously combed with a micro-comb. The surface of the micro-comb has a row of micron-scale micro-teeth. The distance between adjacent microteeth is about 10 μm;

[0055] Afterwards, the single-layer carbon nanotube film after carding is wound on the collection shaft (winding speed about 0.2cm / s), wherein the collection shaft is pre-wrapped with a layer of polytetrafluorofilm, and, in the winding process , using ethanol as the immersion solution to infiltrate the single-layer carbon nanotube film to form a highly oriented carbon nanotube film material on the collecting shaft;

[0056] Finally, the highly oriented carbo...

Embodiment 2

[0059] Example 2: Please refer to figure 1 , the micro-comb preparation process of the highly oriented carbon nanotube fibers may include the following steps:

[0060] First, pull out a single-layer carbon nanotube film from a carbon nanotube array (Nature, 2002, Volume 419, Issue 6909);

[0061] Afterwards, the single-layer carbon nanotube film was combed continuously with a micro-comb. The surface of the micro-comb had two rows of interlaced micron-scale micro-teeth. The micro-teeth were conical in shape with a diameter of about 5 μm and a height of about 10 μm. The distance between adjacent microteeth is about 10 μm;

[0062] The carded single-layer carbon nanotube film is twisted at a twisting speed of about 1200 rpm and a collection speed of about 10 cm / min.

[0063] Afterwards, it is wound and collected with a collection shaft, and in the winding process, the soaking treatment is carried out with ethanol (analytical pure) as the soaking liquid, and carbon nanotube fibe...

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Abstract

The invention discloses a highly oriented carbon nanotube film or fiber and a preparation device and method thereof by a micro-comb method. In one embodiment, the preparation method includes: providing a carbon nanotube array, and pulling out a single-layer carbon nanotube film from the carbon nanotube array; The single-layer carbon nanotube film is micro-combed, so that the orientation of the carbon nanotubes in the single-layer carbon nanotube film is basically consistent; And form highly oriented carbon nanotube film or carbon nanotube fiber. By means of the invention, the structure of the carbon nanotube fiber and film can be made denser, and the load transfer efficiency and mechanical performance thereof can be greatly improved. At the same time, the invention also successfully realizes the transformation of the carbon nanotube material from a microscopic body to a macroscopic body, increases its macroscopic operability, and facilitates subsequent treatment and processing.

Description

technical field [0001] The invention relates to a carbon nanotube fiber or film and a preparation process thereof, in particular to a highly oriented carbon nanotube film material or fiber prepared by a micro-comb method, a preparation system and a method thereof, and belongs to the technical field of nanomaterials. Background technique [0002] Carbon nanotubes are one-dimensional nanomaterials composed of graphite curls. They have the characteristics of light weight, high specific surface area, functional surface structure, high strength, high modulus and high flexibility. They are ideal for the development of light weight, high strength and impact resistance. It is an ideal reinforcing material for composite materials, and when used as a conductor, it can also make composite materials have various properties such as antistatic, microwave absorption, and electromagnetic shielding. Carbon nanotube fibers and films are the key research directions of carbon nanotube macroscop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/16C01B32/168
Inventor 张丽雯赵静娜朱运田李清文
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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