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Waterborne conductive ink and preparation method thereof

A technology of conductive ink and production method, which is applied in ink, household utensils, applications, etc., can solve the problems of low cost of carbon paste, high surface resistance, strong damage to human body, etc., and achieve remarkable conductive effect, good adhesion, and strong versatility Effect

Inactive Publication Date: 2019-07-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional conductive inks contain a large amount of organic solvents, such as benzene, ethers, ketones and esters. These solvents not only pollute the environment, but are also highly harmful to the human body.
Metal fillers such as conductive silver paste lead to high density and high cost, and cannot be used in large quantities in general occasions. Traditional carbon paste has low cost but poor conductivity
CN200810128385.4 discloses a water-based water-free offset printing conductive ink and its preparation method. The conductive polymer (polyethylenedioxythiophene) aqueous dispersion is used as the conductive medium, and the surface resistance is still high, 80-1600kΩ / cm2, which cannot Realize the versatility of water-based resins in other fields

Method used

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  • Waterborne conductive ink and preparation method thereof
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  • Waterborne conductive ink and preparation method thereof

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Effect test

Embodiment 1

[0039] A water-based conductive ink and a preparation method thereof, wherein the carbon fiber powder with carbon nanotubes grown on the surface is used as a conductive filler, and the conductive ink is composed of the following components in mass content:

[0040] Water-based polymer resin: 30%;

[0041] Water-based thixotropic agent: 0.5%;

[0042] Conductive powder: 5%;

[0043] Coupling agent: 0.1%;

[0044] Defoamer: 0.1%;

[0045] Ethylene glycol: 1%;

[0046] Triethanolamine: 0.3%;

[0047] Its preparation method comprises the following steps:

[0048] S1, weighing a certain mass fraction of carbon fiber powder grown on the surface of carbon nanotubes and mixing them evenly with ethylene glycol;

[0049] S2, taking a certain mass fraction of the water-based polyurethane resin and mixing it with a certain mass fraction of the water-based thixotropic agent;

[0050] S3, mixing the mixture of S1 and S2 evenly at room temperature;

[0051] S4, adding the coupling ag...

Embodiment 2

[0053] A water-based conductive ink and a preparation method thereof, wherein the carbon fiber powder with carbon nanotubes grown on the surface is used as a conductive filler, and the conductive ink is composed of the following components in mass content:

[0054] Water-based polymer resin: 80%;

[0055] Water-based thixotropic agent: 15%;

[0056] Conductive powder: 30%;

[0057] Coupling agent: 1.5%;

[0058] Defoamer: 1.5%;

[0059] Ethylene glycol: 20%;

[0060] Triethanolamine: 1.5%;

[0061] Its preparation method comprises the following steps:

[0062] S1, weighing a certain mass fraction of carbon fiber powder grown on the surface of carbon nanotubes and mixing them evenly with ethylene glycol;

[0063] S2, taking a certain mass fraction of the water-based polyurethane resin and mixing it with a certain mass fraction of the water-based thixotropic agent;

[0064] S3, mixing the mixture of S1 and S2 evenly at room temperature;

[0065] S4, adding the coupling a...

Embodiment 3

[0067] A water-based conductive ink and a preparation method thereof, wherein the carbon fiber powder with carbon nanotubes grown on the surface is used as a conductive filler, and the conductive ink is composed of the following components in mass content:

[0068] Waterborne polymer resin: 50%;

[0069] Water-based thixotropic agent: 1%;

[0070]Conductive powder: 8%;

[0071] Coupling agent: 0.5%;

[0072] Defoamer: 0.5%;

[0073] Ethylene glycol: 3%;

[0074] Triethanolamine: 0.5%;

[0075] Its preparation method comprises the following steps:

[0076] S1, weighing a certain mass fraction of carbon fiber powder grown on the surface of carbon nanotubes and mixing them evenly with ethylene glycol;

[0077] S2, taking a certain mass fraction of the water-based polyurethane resin and mixing it with a certain mass fraction of the water-based thixotropic agent;

[0078] S3, mixing the mixture of S1 and S2 evenly at room temperature;

[0079] S4, adding the coupling agent,...

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Abstract

The invention relates to waterborne conductive ink and a preparation method thereof. According to the waterborne conductive ink, carbon fiber powder is utilized as a conductive filler, and carbon nanotubes grow on the surface of the carbon fiber powder. The conductive ink is prepared from the following ingredients in mass percent content: 30 wt% to 80 wt% of waterborne macromolecular resin, 0.5 wt% to 15 wt% of waterborne thixotropic agent, 5 wt% to 30 wt% of conductive powder, 0.1 wt% to 1.5 wt% of coupling agent, 0.1 wt% to 1.5 wt% of defoaming agent, 1 wt% to 20 wt% of ethylene glycol and0.3 wt% to 1.5 wt% of triethanolamine. According to the waterborne conductive ink and the preparation method of the waterborne conductive ink, the carbon fiber powder is utilized as the conductive filler, carbon nano tubes grow on the surface of the carbon fiber powder, and a carbon fiber conductive network is formed; meanwhile, electric conductivity of the ink is further enhanced by a synergisticconductive network of the carbon nano tubes; the waterborne conductive ink has the advantages of waterborne environmental friendliness, good stability, good adhesive force, no heating and curing, strong universality and the like.

Description

technical field [0001] The invention relates to the technical field of water-based conductive ink, in particular to a water-based conductive ink and a manufacturing method thereof. Background technique [0002] At present, most conductive inks are solvent-based, and the volatile organic compounds (VOC) released during production and use will cause air pollution and have a direct impact on the growth of animals and plants. It is currently ranked behind cars and has become One of the main sources of pollution. With the lack of fossil energy and resources, the pollution problem has attracted the attention of many countries in the world, advocating conservation, energy saving, and environmental protection, which has caused the chemical industry to face great challenges in upgrading. At present, water-based ink has been valued by people. Water-based ink is non-toxic, environmentally friendly, and has little impact on the environment. It has been widely used in some industries. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52
CPCC09D11/52
Inventor 王可徐梦雪王悦辉
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST