Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing silver nanowire ink, the silver nanowire ink, and transparent electroconductive coating film

A technology of silver nanowires and manufacturing methods, applied in the field of silver nanowire ink manufacturing, capable of solving the problems of bulky and complex processing devices, reduced transparency, etc., and achieving excellent optical properties, excellent film adhesion, and excellent electrical conductivity Effect

Inactive Publication Date: 2016-11-09
DOWA ELECTRONICS MATERIALS CO LTD
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing ITO film, it is necessary to increase the thickness of the ITO layer to obtain conductivity, but the increase in thickness causes a decrease in transparency and cannot improve visibility
In addition, the vacuum evaporation method and the sputtering method require a vacuum environment, so there are problems such as large and complicated processing equipment, and a large amount of energy is consumed for film formation, and the development of improved technologies for these issues is required.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing silver nanowire ink, the silver nanowire ink, and transparent electroconductive coating film
  • Method for producing silver nanowire ink, the silver nanowire ink, and transparent electroconductive coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] 〔Synthesis of silver nanowires〕

[0068] As alcohol solvent, prepare propylene glycol, silver nitrate, lithium chloride, potassium bromide, lithium hydroxide, aluminum nitrate nonahydrate, as organic protective agent, prepare vinylpyrrolidone and diallyldimethylammoniumnitrate (diallyldimethylammoniumnitrate) Copolymer (prepared as a copolymer based on 99% by mass of vinylpyrrolidone and 1% by mass of diallyldimethylammonium nitrate, with a weight average molecular weight of 130,000).

[0069] Copolymerization of 0.030 g of lithium chloride, 0.0042 g of potassium bromide, 0.030 g of lithium hydroxide, 0.0416 g of aluminum nitrate nonahydrate, vinylpyrrolidone, and diallyldimethylammonium nitrate were added and dissolved in 500 g of propylene glycol at room temperature Compound 5.24g, made solution A. In a separate container, 4.25 g of silver nitrate was added and dissolved in 20 g of ethylene glycol to prepare a solution B.

[0070] After the total amount of solution ...

Embodiment 2

[0102] An experiment was performed under the same conditions as in Example 1, except that the silver nanowire ink was prepared so that the amount of the water-soluble acrylic-urethane copolymer resin component used as the binder was 0.50% by mass. Compared with Example 1, the resistance change rate before and after the scratch resistance test was improved.

Embodiment 3

[0104] An experiment was performed under the same conditions as in Example 1, except that the silver nanowire ink was prepared so that the amount of the water-soluble acrylic-urethane copolymer resin component used as the binder was 0.75% by mass. Compared with Example 1, the resistance change rate before and after the scratch resistance test was improved.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
viscosityaaaaaaaaaa
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a technique of high industrial practicality for obtaining a transparent electroconductive coating film having superior electroconductivity, optical transmittance, haze properties, and adhesion. Provided is a method for producing silver nanowire ink, in which a viscosity modifier and a water-soluble acrylic-urethane copolymer resin are added to a water solvent or a mixed solvent of water and an alcohol in which silver nanowires are dispersed. The contained amount of the water-soluble acrylic-urethane copolymer resin relative to the total amount of silver nanowire ink can be 0.05-2.0 mass%. The contained amount of silver relative to the total amount of silver nanowire ink is preferably 0.05-1.0 mass%. The contained amount of the viscosity modifier relative to the total amount of silver nanowire ink is preferably 0.01-1.0 mass%. The viscosity of the silver nanowire ink is preferably adjusted within the range of 1-100 mPa.s.

Description

technical field [0001] The present invention relates to a method for producing a silver nanowire ink useful as a material for forming a transparent conductor and the like. In addition, it relates to the silver nanowire ink and a transparent conductive coating film using the silver nanowire ink. Background technique [0002] In this specification, a collection of fine metal wires having a thickness of about 200 nm or less is referred to as "nanowires". When using powder as a metaphor, individual wires correspond to "particles" that make up the powder, and nanowires (nanowires) correspond to the "powder" that aggregates the particles. [0003] Transparent electrodes using transparent conductive films are essential technologies for various displays using technologies such as liquid crystal, plasma, and organic electroluminescence, touch panel sensors mounted on smartphones, and tablet PCs, and various solar cells. . As a material of the transparent conductive film, a metal o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/102C09D11/107H01B1/00H01B1/22H01B5/14H01B13/00
CPCC09D11/102C09D11/107C09D11/52H01B1/22B82Y40/00C08K3/08C08K2003/0806C09D11/03C09D7/20C09D7/61C09D7/65C09D7/67C09D7/70
Inventor 儿玉大辅斋藤宏敏佐藤王高
Owner DOWA ELECTRONICS MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com