Aqueous nano-silver conductive ink for textiles

A conductive ink and nano-silver technology, used in inks, applications, household appliances, etc., can solve the problems of fastness ink storage stability, poor storage period, limited application, etc., and achieve stable ink performance, high conductivity, and good moisture resistance. frictional effect

Inactive Publication Date: 2019-02-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fastness between the conductive ink and the fabric, ink storage stability, storage period, etc. in this patent are relatively poor
At present, the existing reported conductive inks have certain defects in terms of good conductivity, stability, fastness, and bending resistance, which limit their application in the field of printed electronics to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A water-based nano-silver conductive ink for textiles, comprising the following raw material components in mass percent: 15% nano-silver, 18% water-based polyurethane, 4% water-based polyester resin, 6% isocyanate curing agent, 0.4% water-soluble silicone oil dispersant %, glycerin 5%, water 51.6%.

[0021] Described nano-silver is added into 90 parts by weight of deionized water by the silver nitrate of 10 parts by weight and the dispersant (SN5040 dispersant) of 2 parts by weight, electric stirring 20 minutes; The sodium borohydride of 3 parts by weight is added to 10 parts by weight Dissolve in deionized water in parts by weight; then slowly add sodium borohydride solution into the mixed solution of silver nitrate and dispersant, and continue electric stirring for 60 minutes under the reaction condition of 50°C. The reaction product was centrifuged and washed three times with acetone and deionized water, respectively, to obtain purified nano-silver paste. The mass p...

Embodiment 2

[0024] A water-based nano-silver conductive ink for textiles, comprising the following raw material components in mass percent: 18% nano-silver, 20% water-based polyurethane, 4% water-based polyester resin, 4% isocyanate curing agent, 0.6% water-soluble silicone oil dispersant %, glycerin 5%, water 48.4%. Described nano-silver preparation method is the same as embodiment 1.

[0025] Add water-based polyurethane, water-based polyester resin, isocyanate curing agent, water-based silicone oil dispersant, glycerol and water into the container in sequence, and after electric stirring at 600 rpm / min for 30 minutes, add nano-silver paste to the above solution , continue electric stirring at 1200 rpm / min for 50 minutes, then filter with a 0.45 μm pore size filter, and then filter the filtrate with a 0.22 μm pore size filter to obtain the ink.

[0026] Add water-based polyurethane, water-based polyester resin, isocyanate curing agent, water-based silicone oil dispersant, glycerol and ...

Embodiment 3

[0028] A water-based nano-silver conductive ink for textiles, comprising the following raw material components in mass percent: 20% nano-silver, 20% water-based polyurethane, 4% water-based polyester resin, 5% isocyanate curing agent, 0.5% water-soluble silicone oil dispersant %, glycerin 6%, water 46.5%. Described nano-silver preparation method is the same as embodiment 1.

[0029] Add water-based polyurethane, water-based polyester resin, isocyanate curing agent, water-based silicone oil dispersant, glycerol and water into the container in sequence, and after electric stirring at 600 rpm / min for 30 minutes, add nano-silver paste to the above solution , continue electric stirring at 1200 rpm / min for 50 minutes, then filter with a 0.45 μm pore size filter, and then filter the filtrate with a 0.22 μm pore size filter to obtain the ink.

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Abstract

The invention discloses aqueous nano-silver conductive ink for textiles. The aqueous nano-silver conductive ink comprises, by mass, 8-25% of nano-silver, 9-20% of waterborne polyurethane, 2-6% of aqueous polyester resin, 3-6% of a curing agent, 0.2-0.6% of a dispersant, 10-20% of a solvent and 20-45% of water. The aqueous nano-silver conductive ink has good electrical conductivity, excellent stability, wet rub resistance and bending resistance and is suitable for printing on a textile substrate surface.

Description

technical field [0001] The invention belongs to the field of conductive ink, in particular to a water-based nano-silver conductive ink for textiles. Background technique [0002] Printed electronics technology integrates printing technology and electronic technology to print electronic products to meet the requirements of minimizing production costs and maximizing efficiency. In the future, printed electronics technology will develop towards high-density integration, the application of flexible three-dimensional substrates, and the direction of maximizing environmental protection. Inkjet printing is to use computer-aided control of inkjet printing equipment to directly print various organic / inorganic functional materials on the surface of various substrates without a mask and without contact to form high-precision conductive lines and graphics. This technology not only has simple operation procedures, high material utilization rate, no pollution to the environment, and low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/38
CPCC09D11/38C09D11/52
Inventor 王悦辉谢辉杜得喜
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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