Nano-silver flexible conductive coating and preparing method thereof

A conductive coating, silver flexible technology, applied in conductive coatings, anti-corrosion coatings, coatings, etc., can solve problems such as waste and low product conductivity

Active Publication Date: 2014-08-20
肇庆市联丰电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corresponding domestic technology is not mature enough, and the conductivity of the products produced is low, resulting in a lot of waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] A kind of nano-silver flexible conductive paint, comprises the raw material of following percentage by weight:

[0095] Absolute Ethanol 50%

[0096] Acetyl Tributyl Citrate 3%

[0097] Silicone oil 7%

[0098] Polyethylene glycol 400 5%

[0099] Terpineol 5%

[0100] Division 85 3%

[0101] Ethyl cellulose 3%

[0102] 30nm silver powder 6%

[0103] 200nm silver powder 18%.

[0104] A preparation method of nano-silver flexible conductive paint, comprising the following process steps:

[0105] (1) Weigh the raw materials of the above formula in proportion, put the nano-silver powder in an oven at 100°C for 20 minutes to remove the moisture in the raw materials;

[0106] (2) Add the weighed solvent, polyethylene glycol 400, and ethyl cellulose into the container respectively, put the mixture into a stirrer and stir at 1000rpm for 10min;

[0107] (3) Add silver powder with a particle size of 30 nm, silver powder with a particle size of 200 nm, and silicone oil in ...

Embodiment 2

[0111] A kind of nano-silver flexible conductive paint, comprises the raw material of following percentage by weight:

[0112] Absolute Ethanol 60%

[0113] Acetyl Tributyl Citrate 2%

[0114] Silicone oil 5%

[0115] Polyethylene glycol 400 3%

[0116] Terpineol 3%

[0117] Span 85 2.5%

[0118] Ethylcellulose 2.5%

[0119] 20nm silver powder 6%

[0120] 150nm silver powder 16%.

[0121] A preparation method of nano-silver flexible conductive paint, comprising the following process steps:

[0122] (1) Weigh the raw materials of the above formula in proportion, put the nano-silver powder in an oven at 100°C for 22 minutes to remove the moisture in the raw materials;

[0123] (2) Add the weighed solvent, polyethylene glycol 400, and ethyl cellulose into the container respectively, put the mixture into a stirrer and stir at 1000rpm for 10min;

[0124] (3) Add silver powder with a particle size of 20 nanometers, silver powder with a particle size of 150 nanometers and si...

Embodiment 3

[0128] A kind of nano-silver flexible conductive paint, comprises the raw material of following percentage by weight:

[0129] Absolute Ethanol 70%

[0130] Acetyl Tributyl Citrate 1%

[0131] Silicone oil 3%

[0132] Macrogol 400 1.5%

[0133] Terpineol 2%

[0134] Division 85 2%

[0135] Ethylcellulose 1.5%

[0136] 25nm silver powder 4%

[0137] 300nm silver powder 15%.

[0138] A preparation method of nano-silver flexible conductive paint, comprising the following process steps:

[0139] (1) Weigh the raw materials of the above formula in proportion, put the nano-silver powder in an oven at 100°C for 24 minutes to remove the moisture in the raw materials;

[0140] (2) Add the weighed solvent, polyethylene glycol 400, and ethyl cellulose into the container respectively, put the mixture into a stirrer and stir at 1000rpm for 11min;

[0141] (3) Add silver powder with a particle size of 25 nm, silver powder with a particle size of 300 nm, and silicone oil in sequence...

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Abstract

The invention relates to the technical field of conductive coatings, and in particular to a nano-silver flexible conductive coating and a preparing method thereof. The conductive coating comprises the following raw materials, by weight: 52-80% of solvents, 1-3% of acetyl tributyl citrate, 2-8% of organic silicone oil, 1-5% of polyethylene glycol 400, 2-3% of Span 85, 1-3% of ethyecellulose and 13-26% of conductive particles, wherein the conductive particles are formed by compounding two nano-silver powders with different particle diameters, the weight percentage of the nano-silver powder with a particle diameter of 150-450nm is 10-18%, and the weight percentage of the nano-silver powder with a particle diameter of 20-40nm is 3-8%. The beneficial effects of the conductive coating provided by the invention are that a film formed by the conducntive coating has the advantages of stable surface conductivity, low resistance, high light transmittance and high adhesiveness, and the film has a light transmittance of more than 90%, and a surface hardness of no less than 3H. The preparing technology provided by the invention is simple and mature, thereby being suitable for popularization and application, and having low production costs.

Description

technical field [0001] The invention relates to the technical field of conductive coatings, in particular to a nano-silver flexible conductive coating and a preparation method thereof. Background technique [0002] Conductive coatings are special coatings that are coated on high-resistivity polymer materials to enable them to conduct current and eliminate accumulated static charges. They can be coated on the surface or inside of substrates of any shape. In recent years, with the rapid development of the coating industry and modern industry, a functional material is a coating that is coated on a non-conductive substrate so that it has a certain ability to conduct current and dissipate static charges. The film-forming substance is large Most are insulated. In order to make the coating conductive, a common treatment method is to incorporate conductive particles. As a conductive coating, conductive coatings have important practical value in the electronics industry, constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/24C09D5/10C09D7/00C09D7/12
Inventor 陈克勇朱文峰杨忠芝吴建海
Owner 肇庆市联丰电子科技有限公司
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