Water-based conductive ink and preparation method thereof

A conductive ink, water-based technology, applied in inks, household utensils, applications, etc., can solve the problems of poor stability and serious pollution of conductive inks, achieve low cost, weaken electromigration, and facilitate deposition and film formation

Inactive Publication Date: 2021-04-16
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a water-based conductive ink and its preparation method, which aims to solve the problems of serious pollution and poor stability of existing conductive inks to a certain extent

Method used

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  • Water-based conductive ink and preparation method thereof
  • Water-based conductive ink and preparation method thereof
  • Water-based conductive ink and preparation method thereof

Examples

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preparation example Construction

[0042] The second aspect of the embodiment of the present application provides a method for preparing the above-mentioned water-based conductive ink, comprising the following steps:

[0043] After mixing the silver-coated copper powder, modified water-based acrylic resin, water-based amino resin, neutralizer, solvent, defoamer, wetting agent, dispersant and anti-blocking agent in the formula, the gradient speed-up mixing process is carried out to obtain Water-based conductive ink.

[0044] The preparation method of the water-based conductive ink provided in the second aspect of the application, the silver-coated copper powder, modified water-based acrylic resin, water-based amino resin, neutralizer, solvent, defoamer, wetting agent, dispersant and After the anti-blocking agent is mixed, the raw material components are mixed evenly through the gradient speed-up mixing process, and then the water-based conductive ink is obtained. The process is simple, the preparation time is sh...

Embodiment 1

[0050] A water-based conductive ink, including components: silver-coated copper powder: 72 parts, epoxy resin modified water-based acrylic resin: 12 parts, water-based amino resin: 3.5 parts, neutralizer: 0.7 parts, solvent: 5.6 parts, disinfectant Foaming agent: 1 part, wetting agent: 1 part, dispersing agent: 1 part, anti-blocking agent: 3.2 parts.

[0051] Its preparation includes steps: after accurately weighing epoxy resin-modified water-based acrylic resin, water-based amino resin, neutralizer, solvent, defoamer, wetting agent, dispersant, and anti-blocking agent, add the mixture into the mixing tank according to the proportion , then place the mixing tank in a planetary mixer operated at room temperature at the following speeds: 500 rpm for 1 minute, then 750 rpm for 1 minute, then 900 rpm 1 minute, then stirred at 1100 rpm for 1 minute, and finally stirred at 1400 rpm for 1 minute, a total of 5 minutes, and the water-based conductive ink can be prepared after the stirr...

Embodiment 2

[0053] A water-based conductive ink, including components: silver-coated copper powder: 69 parts, epoxy resin modified water-based acrylic resin: 15 parts, water-based amino resin: 3.75 parts, neutralizer: 0.75 parts, solvent: 4 parts, disinfectant Foaming agent: 1.5 parts, wetting agent: 1 part, dispersing agent: 1 part, anti-blocking agent: 4 parts.

[0054] The preparation includes steps: after accurately weighing epoxy resin modified water-based acrylic resin, water-based amino resin, neutralizer, solvent, defoamer, wetting agent, dispersant, and anti-blocking agent, add them into the mixing tank according to the proportion , and then put the mixing tank into a planetary mixer, and the mixer was operated at room temperature at the following speed: 500 rpm for 1 minute, then 750 rpm for 1 minute, then 900 rpm for 1 minute minutes, then stirred at 1100 rpm for 1 minute, and finally at 1400 rpm for 1 minute, for a total of 5 minutes. After the stirring was completed, the wate...

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Abstract

The invention belongs to the technical field of ink, and particularly relates to water-based conductive ink and a preparation method thereof. The water-based conductive ink comprises the following components in parts by weight: 50-90 parts of silver-coated copper powder, 5-30 parts of modified water-based acrylic resin, 1-5 parts of water-based amino resin, 0.5-2 parts of a neutralizer, 0-6 parts of a solvent, 0.2-5 parts of a defoaming agent, 0.2-5 parts of a wetting agent, 0.2-5 parts of a dispersing agent and 0-10 parts of an anti-blocking agent. The water-based conductive ink provided by the invention can effectively weaken the electromigration phenomenon, and a paint film is good in stability, low in resistance, less in volatile organic compounds, environment-friendly, non-flammable and non-combustible, and green and environment-friendly; and the ink is convenient for construction and application, can be printed on a polyester substrate or various papers, has good paint film hardness and adhesion performance, and is not easy to fall off.

Description

technical field [0001] The application belongs to the technical field of ink, and in particular relates to a water-based conductive ink and a preparation method thereof. Background technique [0002] Conductive ink refers to the ink made by dispersing conductive components in the binder, which has a certain degree of conductive properties and can be used for printing conductive points or conductive lines. The conductive components commonly used in conductive inks are metal particles, such as silver particles and copper particles. Although these pure metal particles have good conductivity, there are many problems. For example, silver has silver ion migration in conductive ink, and its price is very expensive; the chemical properties of copper are relatively active, and its surface is easily oxidized to form an oxide film, which affects its electrical conductivity. At present, conductive inks can be classified into organic solvent-based conductive inks and water-based conduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/102C09D11/103C09D11/03C09D11/033
Inventor 赵维巍李克伟李康王芳张徐之
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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