Preparation method of conductive ink

A conductive ink and ink technology, applied in ink, household utensils, applications, etc., can solve the problems of poor performance of conductive ink, achieve the effect of improving compatibility and binding force, increasing surface charge, and promoting dispersion

Pending Publication Date: 2022-02-08
重庆石墨烯研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of preparation method of conductive ink, to solve the problem that the performance of conductive ink is not good due to the easy agglomeration of graphene in the preparation process of existing graphene conductive ink

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Accurately weigh 20g of nanometer graphene powder and 6g of methyl cellulose and add them to a PZ-120L integrated ultrasonic processor, using zirconia balls as the medium material, at a temperature of 25°C, at a speed of 2000r / min, ultrasonically milling for 2 hours, and making Obtain the graphene dispersed liquid droplet for subsequent use.

[0022] Accurately weigh 3000g of cyclohexanone, the electrostatic spray gun is positively charged under the discharge of the electrode needle, the electrostatic spray gun sprays atomized graphene dispersed droplets, and the cyclohexanone is sprayed and atomized from the spray gun of the ground wire, and the phase in the container Mix (the electrostatic spraying equipment adopts American Graco model -W100B water-based electrostatic spraying equipment) to obtain conductive ink.

Embodiment 2

[0024] The difference from Example 1 is that 6 g of methyl cellulose is replaced by 8 g of ethyl cellulose, and the ultrasonic grinding time is 12 hours. The 3000 g cyclohexanone was replaced by a mixture of 3000 g cyclohexanone, 3000 g terpineol.

Embodiment 3

[0026] The difference with Example 1 is: 6g methylcellulose is replaced by 10g hydroxymethylcellulose, the time of ultrasonic grinding is 18h, 3000g cyclohexanone is replaced by 3000g cyclohexanone, 3000g ethyl lactate and 4000g octyl acetate mixture of esters.

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PUM

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Abstract

The invention relates to the technical field of conductive ink, and discloses a preparation method of conductive ink, and the conductive ink comprises an ink solvent and graphene dispersion liquid drops stably dispersed in the solvent, wherein the graphene dispersion liquid drops are uniformly dispersed in the ink solvent by adopting an electrostatic method. The preparation method is used for solving the problem that the conductive ink is poor in performance due to the fact that graphene is prone to agglomeration in the preparation process of existing graphene conductive ink.

Description

technical field [0001] The invention relates to the technical field of conductive ink, in particular to a preparation method of conductive ink. Background technique [0002] Conductive ink is an ink made of conductive materials, which has a certain degree of conductive properties and can be used for printing conductive points or conductive lines. At present, there are practical conductive inks on the market, including gold-based conductive inks, silver-based conductive inks, copper-based conductive inks, carbon-based conductive inks, etc., which are widely used in printed circuits, electrodes, electroplating layers and other fields. However, conductive inks using metal particles as raw materials are not only expensive, but also require complex preparation processes such as chemical synthesis, modification, and separation and extraction. However, the carbon-based conductive inks on the market have high resistivity and unsatisfactory conductive effects. [0003] Graphene is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/30
CPCC09D11/52C09D11/30
Inventor 王登诗王炜举亚琪王从元魏大鹏
Owner 重庆石墨烯研究院有限公司
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