Environment-friendly nano-silver conductive ink adhesive force promoting coating slurry and preparation method thereof

An adhesion-promoting, conductive ink technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of non-dissolving, swelling ability, low adhesion, and low surface energy of the film, and achieve favorable wetting and spreading performance. , enhance the interface bonding force, the effect of simple preparation process

Active Publication Date: 2013-04-03
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The untreated film has a smooth surface, low surface energy, and is not easy to adsorb other substances, and the nano-silver conductive ink uses an environmentally friendly solvent, which has no ability to dissolve or swell the film, resulting in low adhesion
[0004] The ways to improve the adhesion of nano-conductive ink on the surface of low-energy film are as follows: 1. Add resin to the conductive ink, but the amount of resin is greater than 3%, which will greatly reduce the conductivity of the conductive ink and improve the adhesion. not obvious
2. Heating at high temperature (greater than 300°C) after printing conductive ink, the adhesion is obviously improved, but most films cannot withstand such a high temperature
The Chinese patent application number 201010611523.1 discloses a high-adhesion PE powder coating, which uses toxic solvents acetone and cyclohexane, and does not solve the problem of improving the adhesion of nano-silver conductive ink on the substrate and reducing the resistance

Method used

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  • Environment-friendly nano-silver conductive ink adhesive force promoting coating slurry and preparation method thereof
  • Environment-friendly nano-silver conductive ink adhesive force promoting coating slurry and preparation method thereof
  • Environment-friendly nano-silver conductive ink adhesive force promoting coating slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] [Example 1] First add 15 parts of ethyl cellulose to 26 parts of ethylene glycol ether, stir to dissolve; add 3 parts of defoamer BYK-141 and 5 parts of coupling agent KH550 into the remaining 26 parts of ethylene glycol ether After stirring evenly, add 25 parts of nano-calcium carbonate and ultrasonically disperse for 20 minutes; add the ultrasonically dispersed system to the ethyl cellulose solution, add 200 parts of zirconia beads after pre-dispersion, and increase the speed to 2200 revolutions per minute, sand milling and dispersing for 100 minutes to obtain a slurry.

Embodiment 2

[0036] [Example 2] First add 20 parts of aldehyde and ketone resin to 26.5 parts of propylene glycol methyl ether, stir to dissolve; add 3 parts of defoamer BYK-141 and 4 parts of coupling agent KH550 to the remaining 26.5 parts of propylene glycol methyl ether, stir After uniformity, add 20 parts of diatomaceous earth and ultrasonically disperse for 30 minutes; add the ultrasonically dispersed system to the solution of aldehyde and ketone resin, add 200 parts of zirconia beads after pre-dispersion, and increase the speed to 2100 rpm. Sand mill and disperse for 80 minutes to obtain a slurry.

Embodiment 3

[0037] [Example 3] First add 24 parts of chlorinated polypropylene resin to 30 parts of ethyl acetate, stir to dissolve; add 2 parts of defoamer BYK-066N and 4 parts of coupling agent KH560 to the remaining 30 parts of ethyl acetate , after stirring evenly, add 20 parts of kaolin, and ultrasonically disperse for 10 minutes; add the ultrasonically dispersed system to the solution of chlorinated polypropylene resin, add 200 parts of zirconia beads after pre-dispersion, and increase the speed to 1800 rpm Minutes, sanding and dispersing for 90 minutes to obtain a slurry.

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Abstract

The invention relates to an environment-friendly nano-silver conductive ink adhesive force promoting coating slurry and a preparation method thereof, belonging to coating industry. The slurry comprises the following components in parts by weight: 10-24 parts of resin vehicle, 52-70 parts of solvent, 15-25 parts of inorganic filler and 5-8 parts of addition agent. The coating slurry provided by the invention is simple in a preparation technology and suitable for coating and basically has no pollution to environments. A coating with high adhesive force can be obtained with low resin content through compounding of polyurethane and chlorinated polypropylene. A coupling agent can generate a both-way junction effect in a low surface energy thin film-coating interface and a coating-conductive ink interface so that the binding force of the interfaces is reinforced. The wear resistance and absorbing capacity of the coating are increased due to the addition of nanometer aluminium oxide and silicon dioxide, the wetting spreading performance of the conductive ink is facilitated, and the resistance can be reduced by 30%-99.9% according to the difference of components of the conductive ink.

Description

technical field [0001] The invention relates to an environment-friendly nano-silver conductive ink adhesion-promoting coating slurry and a preparation method thereof, belonging to the paint industry. Background technique [0002] Printed electronics refers to the technology of using printing technology to manufacture electronic products at low cost. In recent years, printed electronics has been widely developed in my country, and is used to manufacture transparent conductive films, RFID tags, TFTs, flexible circuits, etc. Compared with the traditional silicon-based circuit manufacturing process, printed electronics technology will provide the advantages of lower cost, flexibility, and mass production. The key raw material to realize this technology is conductive paste, which can be divided into different types according to the type and size of conductive particles, among which nano-silver conductive paste is the most promising one. [0003] Nano-silver conductive ink can o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D101/28C09D161/02C09D123/28C09D129/04C09D129/14C09D7/12
Inventor 李路海胡旭伟李文博莫黎昕
Owner BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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