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Water-soluble graphene conductive ink and preparation method thereof

A conductive ink, water-soluble technology, applied in the field of water-soluble graphene conductive ink and its preparation, can solve the problems of restricting the use of water, restricting the application of organic solvents, etc., to achieve the effects of protecting the environment, ensuring personal health, and low cost

Inactive Publication Date: 2019-12-17
厦门泰启力飞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because some conductive fillers used to prepare conductive inks are insoluble in water, the use of water as an ink solvent is largely limited.
The toxicity of organic solvents also limits the application of organic solvents

Method used

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  • Water-soluble graphene conductive ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Example 1. Get 45 parts of water-soluble acrylic resin, 15 parts of water-soluble graphene powder, 35 parts of deionized water, 5 parts of auxiliary agents (1 part of colorant, 0.5 part of dispersant, 0.5 part of defoamer, 0.5 part of plasticizer , leveling agent 0.5 parts, epoxy silane coupling agent 2 parts), the above materials are calculated according to the mass percentage. Dissolve the water-soluble acrylic resin in deionized water to obtain a homogeneous aqueous solution. Add the water-soluble graphene powder under stirring and adding, and mix evenly. Then, the pre-dispersed material can be obtained by gradually adding additives under the condition of stirring; the stirring speed is 1000 rpm. The stirred slurry was then allowed to stand for 20 minutes and excess water was filtered through a filter press. Finally, the obtained mixed slurry is ground until the fineness of the material reaches below 10 microns; the ground material is filtered to obtain the water-s...

example 2

[0026] Example 2. Get 45 parts of water-soluble polyurethane fat, 15 parts of water-soluble graphene powder, 35 parts of deionized water, 5 parts of auxiliary agents (1 part of colorant, 0.5 part of dispersant, 0.5 part of defoamer, 0.5 part of plasticizer , leveling agent 0.5 parts, epoxy silane coupling agent 2 parts), the above materials are calculated according to the mass percentage. Dissolve water-soluble polyurethane into deionized water to obtain a homogeneous aqueous solution. Add the water-soluble graphene powder under stirring and adding, and mix evenly. Then, the pre-dispersed material can be obtained by gradually adding additives under the condition of stirring; the stirring speed is 1000 rpm. The stirred slurry was then allowed to stand for 20 minutes and excess water was filtered through a filter press. Finally, the obtained mixed slurry is ground until the fineness of the material reaches below 10 microns; the ground material is filtered to obtain the water-s...

example 3

[0027] Example 3. Get 25 parts of water-soluble polyurethane, 20 parts of water-soluble acrylic resin, 15 parts of water-soluble graphene powder, 35 parts of deionized water, 5 parts of auxiliary agents (1 part of colorant, 0.5 part of dispersant, 0.5 part of defoamer, 0.5 parts of plasticizer, 0.5 parts of leveling agent, 2 parts of epoxy silane coupling agent), the above materials are calculated according to the mass percentage. The water-soluble acrylic resin and the water-soluble polyurethane are respectively dissolved in deionized water to obtain a uniform aqueous solution, and then the two solutions are uniformly mixed under stirring conditions to obtain a uniform mixed solution. Next, add the water-soluble graphene powder under stirring and adding, and mix evenly. Then, the pre-dispersed material can be obtained by gradually adding additives under the condition of stirring; the stirring speed is 1000 rpm. The stirred slurry was then allowed to stand for 20 minutes and ...

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Abstract

The invention provides a water-soluble graphene conductive ink and a preparation method thereof. The water-based graphene conductive ink composite material comprises water-soluble graphene powder, a connecting resin material, an auxiliary agent and a solvent. According to an experimental method provided by the invention, the water-soluble graphene conductive ink can be prepared on a large scale. Deionized water is used as a solvent to replace a traditional organic solvent, and the water-soluble graphene conductive ink with good conductivity, good toughness, good compression molding performance, good impact resistance and adhesive force meeting requirements is obtained through selection and proportioning of bonding resin. Due to the excellent conductivity of the graphene component, the conductivity stability of the product is improved, and the resistivity is reduced. The defects of environmental pollution and high cost of the traditional conductive ink are overcome, and the water-soluble graphene conductive ink is expected to be suitable for large-scale commercial production.

Description

technical field [0001] The invention relates to a water-soluble conductive ink, in particular to a water-soluble graphene conductive ink and a preparation method thereof. Background technique [0002] As a key material used in printed electronic technologies such as radio frequency identification technology, flexible printed circuits, sensors, electromagnetic shielding, membrane switches and e-books, conductive ink has attracted widespread attention for its application advantages and research results. At present, many large companies at home and abroad are researching and developing conductive inks. The traditional conductive inks that use inorganic powder materials as conductive materials have gradually been replaced by composite inks that use nano / micron powders as conductive materials. Among them, conductive inks For: nano-silver powder, nano-copper powder, nano-copper-coated silver powder and a new two-dimensional material - graphene, etc. [0003] At present, there are...

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/033
CPCC09D11/033C09D11/52
Inventor 甘秋洋岳光辉
Owner 厦门泰启力飞科技有限公司
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