Conductive large-strain carbon nanotube composite film as well as preparation method and test method thereof

A technology of carbon nanotube composite and carbon nanotube film, which is applied in the field of preparation and strain research, can solve the problem of small strain of single-walled carbon nanotube composite film, and achieve increased difficulty in compounding, good electrical conductivity, and improved mechanical properties Effect

Active Publication Date: 2019-03-22
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention proposes a conductive large-strain carbon nanotube composite film, preparation method and testing method, which solves the problem of small strain of single-walled carbon nanotube composite film in the prior art

Method used

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  • Conductive large-strain carbon nanotube composite film as well as preparation method and test method thereof
  • Conductive large-strain carbon nanotube composite film as well as preparation method and test method thereof
  • Conductive large-strain carbon nanotube composite film as well as preparation method and test method thereof

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preparation example Construction

[0028] like figure 1 Shown, the preparation method of conductive large-strain carbon nanotube composite film comprises the following steps:

[0029] (1) Single-walled carbon nanotube films are prepared by chemical vapor deposition, with diameters ranging from tens to hundreds of microns;

[0030] (2) the single-walled carbon nanotube film prepared in step (1) is collected with a rotating drum, and the drum is immersed in the composite solution while collecting the single-walled carbon nanotube film, and the single-walled carbon nanotube film and the composite solution Layer-by-layer stacking makes the single-wall carbon nanotube film form a composite film, and with the rotation of the drum, the single-wall carbon nanotube composite film is obtained;

[0031] (3) in the step (2), the drum wheel with single-wall carbon nanotube composite film is taken out from the composite solution and then rotated, and the drum wheel with single-wall carbon nanotube composite film rotates und...

Embodiment 1

[0039]The single-walled carbon nanotube film prepared by chemical vapor deposition is collected by a rotating drum at the outlet of the quartz tube, and the rotating drum is immersed in polyvinyl alcohol / carbon nanotube while collecting the single-walled carbon nanotube. In the composite solution of dimethyl sulfoxide / absolute ethanol, single-wall carbon nanotubes and polyvinyl alcohol / dimethyl sulfoxide / absolute ethanol composite solution are stacked layer by layer to form single-wall carbon nanotubes / polyvinyl alcohol / Dimethyl sulfoxide / absolute ethanol composite film, and single-walled carbon nanotube / polyvinyl alcohol / dimethyl sulfoxide / absolute ethanol composite film were superimposed and collected for 10 minutes.

Embodiment 2

[0041] The single-walled carbon nanotube film prepared by chemical vapor deposition is collected by a rotating drum at the outlet of the quartz tube, and the rotating drum is immersed in polyvinyl alcohol / carbon nanotube while collecting the single-walled carbon nanotube. In the composite solution of dimethyl sulfoxide / absolute ethanol, single-wall carbon nanotubes and polyvinyl alcohol / dimethyl sulfoxide / absolute ethanol composite solution are stacked layer by layer to form single-wall carbon nanotubes / polyvinyl alcohol / Dimethyl sulfoxide / absolute ethanol composite film, and single-walled carbon nanotube / polyvinyl alcohol / dimethyl sulfoxide / absolute ethanol composite film were superimposed and collected for 20 minutes.

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Abstract

The invention proposes a conductive large-strain carbon nanotube composite film as well as a preparation method and a test method thereof. The preparation method comprises the following steps: step (1) preparing single-walled carbon nanotube films by a chemical vapor deposition method; step (2) collecting the single-walled carbon nanotube films prepared in the step (1) by a rotating drum wheel, immersing the drum wheel in a composite solution while collecting the single-walled carbon nanotube films, superimposing the single-walled carbon nanotube films and the composite solution one by one toform a composite film on the single-walled carbon nanotube films, and preparing a single-walled carbon nanotube composite film along with the rotation of the drum wheel; and step (3) taking out the drum wheel with the single-walled carbon nanotube composite film in the step (2) from the composite solution, then rotating to make the composite film uniform, and then drying. According to the invention, problems of small tensile strain and poor toughness of the single-walled carbon nanotube composite film in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a conductive large-strain carbon nanotube composite film, a preparation method and a testing method, in particular to the preparation and strain research of a single-walled carbon nanotube composite film. Background technique [0002] Carbon nanotubes are a typical one-dimensional tubular nanomaterial with outstanding mechanical properties, good electrical conductivity, thermal conductivity, flexibility and toughness. In addition, carbon nanotubes have the characteristics of light weight and high strength, which makes carbon nanotubes have broad applications in the fields of stress-strain sensors, flexible and stretchable supercapacitors, wires, multifunctional composite fibers, electrodes, actuators, and artificial muscles. application prospects. At present, there are many methods for preparing carbon nanotube films and carbon nanotube / polymer composite films, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/159C01B32/16C04B26/04G01N3/08
CPCC01B32/159C01B32/16C01B2202/02C01B2202/22C01B2202/24C04B26/04G01N3/08G01N2203/0017G01N2203/0075G01N2203/0282C04B14/026C04B24/16C04B24/026
Inventor 上媛媛葛亚丽常书龙庞瑞张亚玲
Owner ZHENGZHOU UNIV
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