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Graphene modified water-based conductive ink and preparation method thereof

A graphene modified, conductive ink technology, applied in inks, household appliances, applications, etc., can solve problems such as poor adhesion and weak conductivity, and achieve the effects of strong adhesion, reduced physical damage, and stable performance

Inactive Publication Date: 2017-05-31
QINGDAO REALEADER ADVANCED MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, water-based conductive inks are affected by a series of effects such as weak conductivity, poor adhesion, and stability, and their performance cannot be compared with mature solvent-based to conductive inks.

Method used

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  • Graphene modified water-based conductive ink and preparation method thereof
  • Graphene modified water-based conductive ink and preparation method thereof
  • Graphene modified water-based conductive ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 10 parts of water-based acrylate, 10 parts of water, 5 parts of ethanol, 5 parts of triethylamine, 1 part of polycarboxylate sodium salt, 1 part of fatty acid ester sulfate, and 1 part of hydrophobic polysiloxane defoamer 1 part, 1 part of organically modified polydimethylsiloxane, 1 part of associative acrylate, 30 parts of conductive acetylene carbon black, 0.1 part of multilayer graphene, put into the dispersion tank and stir and mix evenly to obtain pre-dispersed material; transfer the obtained pre-dispersed material to a sand mill until the material fineness reaches below 10 microns; filter the ground material to obtain graphene-modified water-based conductive ink.

Embodiment 2

[0029] Weigh 20 parts of water-based polyurethane, 20 parts of water, 15 parts of ethanol, 15 parts of ethylene glycol butyl ether, 1.5 parts of potassium polyacrylate, 1.5 parts of alkylphenol polyoxyethylene ether, 0.4 parts of silicone defoamer, organic 1.5 parts of modified polydimethylsiloxane, 1.5 parts of associative acrylate, 60 parts of acetylene carbon black, and 10 parts of multilayer graphene are put into a dispersion tank and stirred and mixed uniformly to obtain a predispersed material; The pre-dispersed material is transferred to a ball mill until the material fineness reaches below 10 microns; the ground material is filtered to obtain a graphene-modified water-based conductive ink.

Embodiment 3

[0031] Weigh 40 parts of water-based phenolic resin, 30 parts of water, 25 parts of isopropanol, 2 parts of polyacrylic acid sodium salt, 2 parts of fatty acid ester sulfate, 2 parts of hydrophobic polysiloxane defoamer, machine-modified 2 parts of polydimethylsiloxane, 2 parts of polyurethane rheological agent, put into the dispersing tank and stir, mix evenly to obtain a pre-dispersed material; transfer the obtained pre-dispersed material to a three-roll mill until the material fineness reaches Below 10 microns; filter the ground material to obtain graphene-modified water-based conductive ink.

[0032] According to the above-mentioned embodiment 1, embodiment 2 and embodiment 3, after the printed products made of graphene modified water-based conductive ink are cured, they are not easy to oxidize and stable in performance, resistant to acid and alkali and chemical solvent corrosion, and have good electrical conductivity Sex, the square resistance of conductive ink is less th...

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PUM

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Abstract

The invention belongs to the technical field of ink, and in particular relates to graphene modified water-based conductive ink and a preparation method thereof. The graphene modified water-based conductive ink comprises the following materials in parts by weight: 10-40 parts of water-base resin, 0-30 parts of water, 5-25 parts of cosolvent, 10 parts of additive, 30-80 parts of conductive carbon black, and 0.1-20 parts of graphene. According to the graphene modified water-based conductive ink, the outstanding electricity conducting and heat conducting performances of the graphene are fully utilized; the prepared graphene modified water-based conductive ink is outstanding in mechanical performance, high in flexibility, resistant to bending, high in attaching force relative to a base material, and resistant to peeling; a printing product prepared through the conductive ink is hard to oxidize after being cured, stable in performance, and resistant to acid, alkaline and chemical solvent corrosion; the graphene is high in electricity conducting performance, and on that basis, the square resistance of the conductive ink is less than 10 ohms; the conductive ink can be used for replacing an oily product, so that the amount of used and discharged organic solvents can be greatly decreased, and the damage to the body of a construction worker can be greatly reduced, and as a result, the purpose of reducing VOC emission is achieved; the conductive ink is environmentally friendly, and high in market value.

Description

technical field [0001] The invention belongs to the technical field of ink, and in particular relates to a graphene-modified water-based conductive ink and a preparation method thereof. Background technique [0002] With the development of the flexible electronics industry, the combination of electronic technology and printing technology is getting closer, and the demand for conductive ink is also increasing. Traditional solvent-based conductive inks add a large amount of organic solvents, which are harmful to the human body and the environment to varying degrees. The ink contains a large amount of VOC, which will volatilize a large amount of toxic chemical substances during use, among which, benzene, formaldehyde, and xylene are all poisonous and harmful chemical gases; these organic solvents volatilized into the atmosphere also cause A very serious waste of oil resources is caused; oil-based paints are flammable and explosive items, and there are very large safety hazards...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/107C09D11/102C09D11/103C09D11/03
CPCC09D11/52C09D11/03C09D11/102C09D11/103C09D11/107
Inventor 车云霞侯士峰吕艳红
Owner QINGDAO REALEADER ADVANCED MATERIALS TECH
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