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Preparation method of flexible transparent conducting thin film

A transparent conductive film, flexible technology, applied in the direction of cable/conductor manufacturing, conductive layer on the insulating carrier, circuit, etc., can solve the problem of poor adhesion between the film and the substrate, achieve no pollution to the ecological environment, high production efficiency, broaden the The effect of application range

Inactive Publication Date: 2019-03-05
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a flexible base transparent conductive film, which solves the problem of poor adhesion between the film and the substrate, and can be used on a plane or on any curved substrate to achieve uniformity, large area, Highly controllable film formation

Method used

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  • Preparation method of flexible transparent conducting thin film
  • Preparation method of flexible transparent conducting thin film
  • Preparation method of flexible transparent conducting thin film

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The process of preparing flexible base transparent conductive film in this embodiment is as follows: image 3 As shown, it specifically includes the following steps:

[0031] Step A, providing a PET film with a clean surface, the specific steps include:

[0032] A1, clean the PET film with acetone for 30 minutes under ultrasonic conditions, take it out and rinse the surface of the PET film with deionized water;

[0033] A2, the PET film obtained in step A1 was cleaned with ethanol for 30 min in the ultrasonic state, and dried naturally.

[0034] In step B, the PET film obtained in step A is irradiated with ultraviolet light, and the surface is grafted with methacryloxyethyl dimethyl propyl ammonium bromide.

[0035] Step C, adding an anionic surfactant to the nano-silver wire dispersion liquid, and ultrasonically dispersing, the specific process includes the following steps C1-C3:

[0036] Step C1, centrifuging and cleaning the nano-silver wires prepared in the labor...

Embodiment 2

[0046] Step A, providing a PET film with a clean surface, the specific steps include:

[0047] A1, clean the PET film with acetone for 30 minutes under ultrasonic conditions, take it out and rinse the surface of the PET film with deionized water;

[0048] A2, the PET film obtained in step A1 was cleaned with ethanol for 30 min in the ultrasonic state, and dried naturally.

[0049] Step B, grafting methacryloyloxyethyl dimethyl propyl ammonium bromide on the surface of the PET film obtained in step A by chemical grafting method.

[0050] Step C, adding an anionic surfactant to the nano-silver wire dispersion liquid, and ultrasonically dispersing, the specific steps include,

[0051] Step C1, centrifuging and cleaning the nano-silver wire made in the laboratory to remove polyvinylpyrrolidone (PVP) adsorbed on the silver wire to obtain pure nano-silver wire, wherein the nano-silver wire has a diameter of 40-70 nm and a length of 10-20 μm;

[0052]Step C2, disperse the pure nano...

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Abstract

The invention discloses a preparation method of a flexible transparent conducting thin film, and belongs to the technical field of transparent conducting thin films. The method comprises the followingsteps: firstly grafting a cationic surface active agent onto the surface of a transparent flexible base material; then preparing metal nanowire dispersion liquid containing an anionic surface activeagent; putting the base material grafted with the cationic surface active agent into the metal nanowire dispersion liquid, using an electrostatic adsorption self-assembly technology to adsorb a layerof net structure metal nanowires on a substrate material, and drying to obtain the flexible transparent conducting thin film. The flexible transparent conducting thin film is prepared by using the method, uniform, large-area and height controllable film formation can be realized on any curve base, and the problem that the adhesion of the thin film and the base is low can be solved without the addition of an adhesive or aftertreatment steps such as pressurization; the preparation method is simple in preparation technology, few in operational process, extremely low in cost and energy consumptionand pollution-free for ecological environment, and has excellent industrialization application prospect.

Description

technical field [0001] The invention relates to the technical field of transparent conductive films, in particular to a method for preparing a flexible base transparent conductive film. Background technique [0002] With the development of science and technology, electronic devices are developing in the direction of miniaturization, portability and foldability. The flexible base transparent conductive film not only has the photoelectric characteristics Shredded, light and easy to carry and other characteristics. Therefore, the flexible base transparent conductive film will become the trend of future development and has a bright prospect in industrial production. At present, ITO film is still the main market, but because indium is a rare metal, its price is increasing day by day, and its production cost is high, the deposition temperature is high, especially its flexibility is very poor, which greatly limits the application of ITO film in flexible electronics. application i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B1/02H01B5/14
CPCH01B1/02H01B5/14H01B13/00
Inventor 祝清省郑博达
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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