Method for preparing carbon nanotube film

A carbon nanotube film and carbon nanotube technology, applied in the field of carbon nanotube film preparation, can solve the problems of low manufacturing efficiency, low electrical conductivity, cumbersome process, etc., and achieve the effect of uniform thickness, simple process, and easy control of microstructure

Active Publication Date: 2012-08-08
BOE TECH GRP CO LTD
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  • Abstract
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Problems solved by technology

[0004] However, although the existing methods for preparing carbon nanotube films are easy to form a carbon nanotube network layer, the electrical conductivity is low

Method used

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  • Method for preparing carbon nanotube film
  • Method for preparing carbon nanotube film

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] The method for preparing carbon nanotube film provided by the embodiments of the present invention, such as figure 1 shown, including:

[0017] S101 , cleaning the substrate, including chemical cleaning, brush cleaning, direct water rinsing, and air knife drying.

[0018] S102, immersing the cleaned substrate in a silane coupling agent to perform surface silanization treatment.

[0019] Exemplarily, the substrate is sent into the chamber and heated to...

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Abstract

The embodiment of the invention provides a method for preparing a carbon nanotube film and relates to the liquid crystal panel manufacturing field. Requirements on transmitance and conductivity can be achieved without compounding with ITO, and the technology is simple. The method for preparing the carbon nanotube film comprises the following steps of: cleaning a substrate; immersing the cleaned substrate into a silane coupling agent for surface silanization; placing the substrate which has undergone the surface silanization treatment into a carbon nanotube dispersion liquid for biomimetic synthesis of the carbon nanotube film on the substrate, wherein the carbon nanotube dispersion liquid is obtained by the mixing of a carbon nanotube, a sulfonate-containing polymer, a cellulose polymer solution containing carboxyl groups and a perfluoro cationic surfactant; and removing organic matters from the substrate. The embodiment of the invention is used for the preparation of the carbon nanotube film.

Description

technical field [0001] The invention relates to the field of liquid crystal panel manufacture, in particular to a method for preparing a carbon nanotube film. Background technique [0002] The main raw material of the transparent conductive layer in the array substrate of the liquid crystal display and the color filter substrate is the metal oxide of indium tin oxide (ITO). ITO can provide just optical transparency and relatively good electrical conductivity. But it has relatively low electrical conductivity compared with metals such as gold and silver. Therefore, there are certain limitations when applied to fields such as touch screens, displays, and plasma displays. In addition, the abrasion resistance of ITO films is poor, and the cost of indium, the main component of ITO, is relatively high. Therefore, it has become a trend to use optical films with better performance such as carbon nanotubes. [0003] Carbon nanotubes (CNTs) have been widely concerned and studied as...

Claims

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Application Information

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IPC IPC(8): C03C17/22
Inventor 齐永莲徐传祥薛建设
Owner BOE TECH GRP CO LTD
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