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Silk-screen transparent conductive slurry, preparation method of silk-screen transparent conductive slurry and application of silk-screen transparent conductive slurry

A transparent conductive, paste technology, applied in conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, nanotechnology for materials and surface science, etc., can solve the problem of low light transmittance and high haze problem, to achieve the effect of high light transmittance, low haze and high production efficiency

Inactive Publication Date: 2018-07-10
珠海纳金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A number of patent applications have been filed for transparent conductive paste based on nano-silver wires, but the performance of the conductive coating still needs to be improved, with high haze and low light transmittance, and most of them use slit coating and dimple roll coating and other non-patterned application processes, which cannot be realized by simple printing processes

Method used

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  • Silk-screen transparent conductive slurry, preparation method of silk-screen transparent conductive slurry and application of silk-screen transparent conductive slurry
  • Silk-screen transparent conductive slurry, preparation method of silk-screen transparent conductive slurry and application of silk-screen transparent conductive slurry

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preparation example Construction

[0049] A preparation method for silk screen transparent conductive paste, comprising:

[0050] Material preparation steps: Prepare the raw materials according to the formula ratio; configure the silver nanowires in the formula amount into the silver nano wire dispersion; configure the PEDOT / PSS in the formula amount into the PEDOT / PSS dispersion liquid; configure the adhesive in the formula amount into a binder solution;

[0051] Dispersion steps: Add PEDOT / PSS dispersion, water, and organic solvent to the beaker in turn under stirring at 100-1000r / min at room temperature, and disperse for 15 minutes; then add surface wetting agent, leveling agent, and dispersant in sequence , coupling agent, defoamer, adhesive solution, emulsifier and functional additives, disperse for 15 minutes; then add nano-silver wire dispersion, disperse for 15 minutes, filter with 200-mesh filter to obtain filtrate; finally add thickener , dispersed for 15 minutes, that is, made into transparent condu...

Embodiment 1

[0055] A transparent conductive paste for silk screen printing, prepared from the following raw materials by weight percentage:

[0056] Nano silver wire: 0.25%, PEDOT / PSS: 0.05%, surface wetting agent: 0.03%, leveling agent: 0.01%, dispersant: 0.1%, coupling agent: 0.3%, defoaming agent: 0.01%, viscous Mixture: hydroxypropyl methylcellulose 0.06%, thickener: 0.3%, organic solvent: diacetone alcohol 10%, diethylene glycol dimethyl ether 12%, pH regulator: 0.25%, dimethyl Sulfoxide: 1.0%, water: balance.

[0057] A preparation method for silk screen transparent conductive paste, comprising:

[0058] Material preparation steps: Prepare the raw materials according to the formula ratio; configure the silver nanowires in the formula amount into the silver nano wire dispersion; configure the PEDOT / PSS in the formula amount into the PEDOT / PSS dispersion liquid; configure the adhesive in the formula amount into a binder solution;

[0059] Dispersion steps: Add PEDOT / PSS dispersion,...

Embodiment 2

[0062] The transparent conductive paste for screen printing and its preparation method are the same as in Example 1.

[0063] An application of screen printing transparent conductive paste, specifically: using PC as the base material, printing the above prepared screen printing conductive paste on different base materials with a 420-mesh screen to prepare transparent conductive patterns, drying at 150°C After 20 minutes in the oven, the conductive coating can be cured after the solvent is completely evaporated, and a patterned transparent conductive coating is obtained.

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Abstract

The present invention discloses a silk-screen transparent conductive slurry. The silk-screen transparent conductive slurry is prepared by the following raw materials comprising, percentage by weight:0.05-0.5% of silver nanowire, 0-0.25% of PEDOT / PSS, 0.01-0.05% of surfactant, 0.01-0.05% of flatting agent, 0.01-0.5% of dispersing agent, 0.01-0.5% of coupling reagent, 0.01-0.5% of antifoaming agent, 0.01-1% of adhesive, 0.01-1% of thickening agent, 0-0.5% of emulgator, 0-30% of organic solvent, and balance water. The present invention further discloses a preparation method of silk-screen transparent conductive slurry and an application of silk-screen transparent conductive slurry. The silk-screen transparent conductive slurry can improve the condition of bluish hue of the conducting layer,can greatly improve the appearance effect, has good printability, and is stable in square resistance, high in light transmittance and low in haze.

Description

technical field [0001] The invention relates to a transparent conductive paste, in particular to a screen printing transparent conductive paste, a preparation method and application thereof. Background technique [0002] At present, electronic devices mainly use ITO to realize the function of patterned transparent conduction through etching. However, ITO is mainly produced by the vacuum sputtering process, which is expensive, consumes a lot of energy, and has low efficiency. In addition, ITO itself is brittle and the etching process is cumbersome, which brings many troubles to the production and manufacturing of enterprises. Although conductive polymers have been developed for many years, their electrical conductivity has always been their weakness, making them difficult to use in high-end electronic components. As an ideal substitute material for ITO, silver nanowires can be made into transparent conductive paste for screen printing and then patterned by screen printing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B13/00B82Y30/00B41M1/12
CPCH01B1/22B41M1/12B82Y30/00H01B13/00
Inventor 丁轶周海涛雷震
Owner 珠海纳金科技有限公司
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