Graphene-based water-based conductive ink prepared by one-step method and preparation method thereof

A conductive ink, alkene-based water-based technology, applied in inks, household appliances, applications, etc., can solve the problems of high production cost, complex process, long time consumption, etc., and achieve the effect of saving consumables, simple preparation method, and improved conductivity.

Inactive Publication Date: 2018-09-14
北京航科航天科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention simplifies the dispersion and stripping process of graphene. In the process of preparing conductive ink, graphite m

Method used

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  • Graphene-based water-based conductive ink prepared by one-step method and preparation method thereof
  • Graphene-based water-based conductive ink prepared by one-step method and preparation method thereof
  • Graphene-based water-based conductive ink prepared by one-step method and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] A preparation method of modified graphene-based water-based conductive ink, comprising weighing 80 parts of saturated bromine solution, 5 parts of expanded graphite, 4 parts of defoaming agent, 1 part of leveling agent, 1 part of thickener, adhesion promotion Add 1 part of agent, 20 parts of superconducting carbon black, and 25 parts of resin into a high-pressure homogenizer to obtain a graphene-based water-based conductive ink.

Example Embodiment

[0024] Example 2

[0025] Weigh 80 parts of saturated bromine solution, 5 parts of expanded graphite, 6 parts of defoaming agent, 3 parts of leveling agent, 1.5 parts of thickener, 1 part of adhesion promoter, 10 parts of superconducting carbon black, and fumed silica 10 parts and 30 parts of resin are added to a high-pressure homogenizer to obtain graphene-based water-based conductive ink by high-pressure shearing and grinding.

Example Embodiment

[0026] Example 3

[0027] Weigh 80 parts of saturated iodine solution, 6 parts of expanded graphite, 3 parts of defoaming agent, 1 part of leveling agent, 2 parts of thickener, 1 part of adhesion promoter, 10 parts of superconducting carbon black, liquid dioxide 10 parts of silicon and 30 parts of resin are added to a high-pressure homogenizer for high-pressure shear grinding to obtain graphene-based water-based conductive ink 3.

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PUM

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Abstract

The invention relates to graphene-based water-based conductive ink prepared by a one-step method and a preparation method thereof. The preparation method comprises the steps: jointly adding 1 to 8 parts of expanded graphite, 10 to 30 parts of conductive filler, 10 to 50 parts of water-soluble resin, 20 to 80 parts of solvent and 1 to 10 parts of aid into a high-pressure homogenizer to perform high-pressure shear; grinding until the particle size of slurry is smaller than 80mu m to obtain the graphene-based conductive ink with excellent conductivity and good stability. By means of the method, expanded graphite peeling and intercalation of conductive particles among graphite flakes can be finished at the same time in a shearing and grinding process; thus, an integrated good conductive network is established. The method has the advantages of simpleness in operation, short consumed time, ability in avoiding stack among the graphene flake layers and avoiding a grinding medium, simpleness infollow-up processing and suitability for production. The prepared graphene-based water-based conductive ink has the advantages of good dispersion and high stability.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, in particular to a one-step method for preparing graphene-based water-based conductive ink and a preparation method thereof. Background technique [0002] Conductive ink is a paste ink composed of conductive fillers, binders, solvents and additives, which has a certain degree of conductivity, commonly known as paste ink. Among them, the conductive filler is the most important component that determines the conductivity of the conductive ink. Graphene, as a new generation of two-dimensional carbon material with a single-layer sheet structure composed of carbon atoms, has many unique physical and chemical properties, and its theoretical specific surface area can reach 2600m 2 / g, the conductivity is as high as 1250~7000s / m; in addition, graphene also has excellent light transmission properties, good mechanical properties and thermodynamic stability, and is a good conductive ink filler....

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/033C09D11/03C09D11/102
CPCC09D11/03C09D11/033C09D11/102C09D11/52
Inventor 郑楚英王海高书亚李萌李艳花王俊梅
Owner 北京航科航天科技有限公司
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