A kind of water-based environmentally friendly graphene conductive ink

A conductive ink and graphene technology, applied in inks, household appliances, applications, etc., can solve the problems of low conductivity and poor environmental protection performance of conductive inks, achieving low VOC content, completely non-toxic and non-polluting solvents, and strong adhesion. Effect

Active Publication Date: 2021-11-30
大同墨西科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of poor environmental performance and low electrical conductivity of current conductive inks, the present invention provides a water-based environmentally friendly graphene conductive ink

Method used

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  • A kind of water-based environmentally friendly graphene conductive ink
  • A kind of water-based environmentally friendly graphene conductive ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: a kind of water-based environment-friendly graphene conductive ink, is made up of the raw material of following mass fraction: 15 parts of water-based polyurethane resin liquid, 72.5 parts of deionized water, 1.5 parts of graphite of Datong Moxi Technology Co., Ltd., 8.5 parts of acetylene black , 1 part of sodium polycarboxylate, 1.2 parts of BYK-024 water-based defoamer, 1.3 parts of carboxymethyl cellulose CMC.

[0021] The method for preparing water-based environmentally friendly graphene conductive ink, the steps are: first mix deionized water, dispersant, defoamer, and thickener in proportion, and ultrasonically stir for 30 minutes, ultrasonic power 300W, frequency 40~60kHz, stirring speed 300r / min; adding graphene in proportion to ultrasonic stirring for 1~3 hours, ultrasonic power 300W, frequency 40~60kHz, stirring speed 500r / min; adding acetylene black ultrasonic stirring for 2~4 hours, ultrasonic power 300W, frequency 40~60kHz, stirring Speed ​​...

Embodiment 2

[0024] Embodiment 2: a kind of water-based environment-friendly graphene conductive ink, is made up of the raw material of following mass fraction: 18 parts of water-based acrylic emulsions, 65.3 parts of deionized water, 2.5 parts of graphites of Datong Moxi Technology Co., Ltd., 10 parts of conductive graphites, 1.5 parts of sodium polycarboxylate, 1.2 parts of Dow Corning DC-69 water-based defoamer, 1.5 parts of carboxymethyl cellulose CMC. The preparation method is the same as that described in Example 1.

[0025] The main technical indicators of the water-based environmentally friendly graphene conductive ink made according to the above ratio: the viscosity is 13500mPa.s, the solid content is 19.4%, the water-based environmentally friendly graphene conductive ink is screen printed on the PET substrate, and dried at 100°C for 5 minutes After that, it is completely dry. The thickness of the tested film is 15μm, and the square resistance is 12Ω / cm 2 . The adhesion to PET f...

Embodiment 3

[0026] Embodiment 3: a kind of water-based environment-friendly graphene conductive ink, is made up of the raw material of following mass fraction: 20 parts of silicon acrylic emulsion, 60.5 parts of deionized water, 1 part of graphite of Datong Mexico Technology Co., Ltd., 6 parts of acetylene black, 10 parts of conductive graphite, 1 part of sodium oleate, 1.2 parts of Dow Corning DC-65 water-based defoamer, 1 part of carboxymethyl cellulose CMC. The preparation method is the same as that described in Example 1.

[0027] The main technical indicators of the water-based environmentally friendly graphene conductive ink made according to the above ratio: the viscosity is 9200mPa.s, the solid content is 23.3%, the water-based environmentally friendly graphene conductive ink is screen-printed on the PET substrate, and dried at 100°C for 5 minutes After that, it is completely dry. The thickness of the tested film is 15μm, and the square resistance is 15Ω / cm 2 . The adhesion to P...

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Abstract

The invention belongs to the technical field of conductive ink, and provides a water-based environmentally friendly graphene conductive ink in order to solve the problems of poor environmental performance and low conductive performance of the current conductive ink. 10~30 parts of water-based polymer resin, 10~20 parts of conductive filler, 50~120 parts of solvent, 0.5~3 parts of dispersant, 0.5~3 parts of defoamer, 1~5 parts of thickener The conductive ink is made of water-based polymer resin as a binder, and is processed by compound stirring and grinding with conductive fillers, solvents, co-solvents and related auxiliaries. It has the characteristics of adjustable resistivity, stable conductivity, good bending resistance, strong adhesion, and no harm to the environment and human body during use. It overcomes the disadvantages of oily solvents used in traditional conductive inks, such as poisonous and harmful environmental pollution, endangering the health of operators, and high cost of solvents. The ink is suitable for screen printing, flexographic printing, gravure printing, coating and other printing processes.

Description

technical field [0001] The invention belongs to the technical field of conductive ink, in particular to a water-based environmentally friendly graphene conductive ink. Background technique [0002] Conductive ink is a paste ink made of conductive materials dispersed in the binder, which has a certain degree of conductive properties and can be used as printed conductive points or conductive lines. With the development of the electronics industry, the combination of electronic technology and printing technology is getting closer and closer, and the demand for conductive inks is also increasing. Most of the currently used conductive inks are solvent-based, and solvent-based inks contain volatile organic substances (VOC ) emission problem. With the gradual enhancement of people's awareness of environmental protection, there is an urgent need for environmentally friendly and green conductive inks in the market. [0003] Although the carbon powder filler commonly used in conduct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52
CPCC09D11/52
Inventor 宋嘉伟陈永忠乔帅军张立福原帅华
Owner 大同墨西科技有限责任公司
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