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Device and method for preparation of transparent flexible conductive thin film

A flexible, conductive and transparent technology, applied in the direction of forming ripples, circuits, electrical components, etc. on conductors/cables, can solve the problems of using, difficult to achieve large-area preparation, difficult to meet production requirements, etc., to achieve high efficiency, The effect of low cost and improved production efficiency

Inactive Publication Date: 2018-09-04
深圳市善柔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods cannot be used in actual production because it is difficult to achieve large-area preparation or meet the production requirements.

Method used

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  • Device and method for preparation of transparent flexible conductive thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for preparing a transparent flexible conductive film, comprising the following steps:

[0044] 1) preparing an ethanol dispersion of silver nanowires;

[0045] 2) Put the PET with a width of 550mm on the conveying device (the transmission speed is set to 1000mm / min) for transmission, and then turn on the inductive electrostatic generator (set the output voltage to -15kV) to make the PET surface negatively charged, and then put the silver nano The ethanol dispersion liquid of the line is added to the electrostatic spraying machine (8 nozzles are linearly arranged, W-shaped reciprocating motion spraying, the moving speed of the nozzles along the PET conveying direction is 25mm / min, the moving speed of the nozzles in the vertical direction is 1000mm / min, and the working voltage is 14kV) Make it positively charged, then spray on the transparent flexible substrate, then turn on the suspended ion fan (working voltage is set to 5.1kV) to remove excess static electrici...

Embodiment 2

[0049] A method for preparing a transparent flexible conductive film, comprising the following steps:

[0050] 1) preparing an ethanol dispersion of carbon nanotubes with a concentration of 1.5 mg / mL;

[0051] 2) Put the PET with a side width of 500mm on the conveyor (the transmission speed is set to 800mm / min) for transmission, turn on the inductive electrostatic generator (set the output voltage to -13kV) to make the PET surface negatively charged, and then put the carbon nanotubes The ethanol dispersion was added to an electrostatic spraying machine (8 nozzles arranged linearly, Z-shaped reciprocating motion spraying, the moving speed of the nozzles along the PET conveying direction was 30mm / min, the moving speed of the nozzles in the vertical direction was 800mm / min, and the working voltage was 15kV). It is positively charged, and then sprayed onto the transparent flexible substrate, and then the DC ion fan is turned on (the operating voltage is set to 4.8kV) to remove exc...

Embodiment 3

[0055] A method for preparing a transparent flexible conductive film, comprising the following steps:

[0056] 1) preparation concentration is the ethanol dispersion liquid of the graphene of 0.5mg / mL;

[0057] 2) Put the PDMS with a side width of 600mm on the conveying device (the transmission speed is set to 900mm / min) for transmission, and then turn on the inductive electrostatic generator (the output voltage is set to -14kV) to make the PDMS surface negatively charged, and then the graphene The ethanol dispersion liquid is added to the electrostatic spraying machine (the nozzles are arranged in a 3×3 array, spraying back and forth, perpendicular to the transmission direction of PDMS, the speed is 700mm / min, and the working voltage is 14kV) to make it positively charged, and then spray On the transparent and flexible substrate, turn on the desktop ion fan (working voltage is set to 5.2kV) to remove excess static electricity on the transparent and flexible substrate, and dry...

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Abstract

The present invention discloses a device and a method for preparation of a transparent flexible conductive thin film. The device comprises a static generator (1), a static coating machine (2) and a static eliminator (3) arranged on a transmission device (5) in order. The method comprises the steps of: 1) preparing conductive ink; 2) putting a transparent flexible substrate on the transmission device for transmission, starting the static generator to allow the transparent flexible substrate to have static electricity, adding the conductive ink into the static coating machine to allow the conductive ink to have static electricity with electrical property opposite to that of the transparent flexible substrate, coating the conductive ink to the transparent flexible substrate, starting the static eliminator to remove redundant static electricity on the transparent flexible substrate, performing drying to obtain a transparent flexible conductive film. The device is simple in structure and convenient to operate, is low in cost, high in efficiency and large in yield in the preparation of the transparent flexible conductive thin film, and the prepared transparent flexible conductive thin film is excellent in performance.

Description

technical field [0001] The invention relates to a device and method for preparing a transparent and flexible conductive film, belonging to the technical field of nanocomposite materials. Background technique [0002] The preparation of transparent and flexible conductive films is a major technical challenge for the future development of flexible and wearable electronic devices. Traditional transparent conductive materials are formed by depositing ITO (indium tin oxide) by magnetron sputtering on glass and other substrates. ITO-based transparent conductive materials are brittle and difficult to meet the requirements of flexible devices, and the indium in ITO belongs to Rare materials have relatively high manufacturing costs, and the difficulty in meeting the requirements for electrical conductivity in the preparation of large devices makes the manufacturing cost even more expensive. In order to meet the ever-changing requirements of electronic materials, there are many metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00
CPCH01B13/0009
Inventor 于志伟罗晓雯
Owner 深圳市善柔科技有限公司
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