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Conductive slurry and transparent conductive coating

A conductive paste, transparent and conductive technology, applied in conductive coatings, conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as increasing the complexity of the process flow

Active Publication Date: 2016-12-07
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the conductivity, light transmittance and mechanical comprehensiveness of the transparent conductive coating prepared by various materials, it is often combined with polymers, semiconductor oxides, nanoparticles and other substances, that is, conductive coatings, dispersion-promoting Coating, anti-reflection coating and mechanical performance enhancing coating are coated separately, and a transparent conductive coating with excellent comprehensive properties is prepared in a multi-step coating method, which will inevitably increase the complexity of the process.

Method used

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  • Conductive slurry and transparent conductive coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The components contained in the conductive paste are silver nanowires (AgNWs), resin matrix PVB, polyacrylic acid, tin dioxide nano filler particles, tin dioxide colloidal particles, polyether modified organosiloxane additives and ethanol solvent . The specific preparation method is:

[0068] Weigh 10 g of nano-tin dioxide with a particle size of 60 nm, and ultrasonically disperse it in 200 mL of ethanol solvent for 30 min. After the dispersion is uniform, add 8 g of mercaptopropyltriethoxysilane drop by drop. Heated in a water bath at 70 °C and refluxed for 6 h to obtain mercapto-grafted tin dioxide nano-filler particles.

[0069] The conductive filler AgNWs, the mixture of resin matrix PVB and polyacrylic acid, tin dioxide nano filler particles, tin dioxide colloidal particles, polyether modified organosiloxane additives, and ethanol solvent were mass fractioned at 0.8%, 0.6%, 1.2 %, 0.8%, 0.1%, and 96.5% are uniformly mixed to obtain a uniform and stable conductive...

Embodiment 2

[0072] The components contained in the conductive paste are gold nanowires AuNWs, polyurethane, silicon dioxide nanometer filler particles, silicon dioxide colloidal particles, n-octanol additive and ethanol solvent. The specific preparation method is:

[0073]Immerse 5 g of polyurethane in anhydrous toluene, add 1,5-naphthalene diisocyanate and stannous octoate, and react at 50°C for 40 hours; take it out, wash it with water, and dry it under vacuum to obtain a surface-modified polyurethane with mercapto groups.

[0074] Weigh 10 g of silica nano-filler particles with an average particle size of about 30 nm, and ultrasonically disperse them in 200 mL of ethanol solvent for 30 min. After the dispersion is uniform, add 8 g of mercaptopropyltriethoxysilane drop by drop. Heated in a water bath at 70 °C and refluxed for 6 h to obtain mercapto-grafted silica nano-filler particles.

[0075] Conductive filler AuNWs, polyurethane, silica nano-filler particles, nano-silica colloidal p...

Embodiment 3

[0078] The components contained in the conductive paste are AgNWs, a mixture of polyurethane and polyester, hollow titanium dioxide nano-filler particles, polystyrene nanoparticles, and a mixed solvent of water, ethanol, and isopropanol. The water, ethanol, and isopropanol The volume ratio of propanol is 1:3:1. The specific preparation method is:

[0079] Weigh 10 g of hollow titanium dioxide nano-filler particles with a particle size of 150 nm, and ultrasonically disperse them in 200 mL of ethanol solvent for 30 min. After the dispersion is uniform, 8 g of mercaptopropyltriethoxysilane is added dropwise. Heated in a water bath at 70 °C and refluxed for 6 h to obtain mercapto-grafted hollow titania nanofiller particles.

[0080] The conductive filler AgNWs, a mixture of polyurethane and polyester (the mass ratio of the two is 5:1), hollow titanium dioxide nano-filler particles, polystyrene nanoparticles, water, ethanol, isopropyl The mixed solvent of alcohol is uniformly mix...

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Abstract

The invention provides conductive slurry and transparent conductive coating. The conductive slurry comprises the ingredients of metal conductive filler, a resin substrate, nanometer filler particles and / or colloid particles and a solvent. By adoption of the technical scheme of the invention, the conductive slurry system is uniform and stable, and has the characteristics of electrical conduction, antireflection, diffusion promotion, and mechanical comprehensive performance improvement; a one-step preparation method for the transparent conducive coating is realized through the slurry, and the transparent conducive coating also can be prepared by a three-step method; the prepared conducive coating has high light transmittance, high electrical conductivity, and excellent mechanical comprehensive performance; and in addition, the preparation method has a simple process, a low cost, high repeatability and a low processing temperature, so that the conductive slurry and the transparent conducive coating have high industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of photoelectric functional materials, and in particular relates to a conductive paste and a transparent conductive coating. Background technique [0002] Transparent conductive coating is a kind of thin film material with excellent photoelectric properties, which is widely used in touch screens, displays, solar cells and other fields. The traditional material for preparing transparent conductive coatings is indium tin oxide (ITO), and with the advancement of technology, many new transparent conductive coating materials such as graphene, carbon nanotubes, metal grids, and metal nanowires have emerged. . [0003] In order to improve the conductivity, light transmittance and mechanical comprehensiveness of transparent conductive coatings prepared from various materials, the method of combining polymers, semiconductor oxides, nanoparticles and other substances is often used, that is, conductive coatings, dispe...

Claims

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Application Information

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IPC IPC(8): H01B1/22C09D5/24
CPCC09D5/24H01B1/22
Inventor 邱业君张立文张龙江
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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