Silver nanowire transparent conductive ink as well as preparation method and application thereof

A silver nanowire, transparent and conductive technology, which is applied in the field of silver nanowire transparent conductive ink and its preparation, can solve the problems of low transparency, cumbersome process, harsh conditions, etc., and achieve good flexibility, good electrical conductivity and strong adhesion Effect

Inactive Publication Date: 2018-09-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of existing conductive inks has problems of one kind or another (low transparency, high square resistance, etc.), which need to be improved urgently; and the metal nanoparticles used in existing conductive inks have complicated processes and harsh conditions

Method used

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  • Silver nanowire transparent conductive ink as well as preparation method and application thereof
  • Silver nanowire transparent conductive ink as well as preparation method and application thereof
  • Silver nanowire transparent conductive ink as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Silver nanowires are prepared by the following method, comprising the following steps:

[0024] (1) Disperse 1.8 g of silver diammine hydroxide and 0.01 g of sodium polyacrylate dispersant with a molecular weight of 10,000 in 300 mL of distilled water, and obtain a mixed solution through magnetic stirring and ultrasonic dispersion;

[0025] (2) Heat the above mixed solution to 130°C in a water bath under magnetic stirring; add 0.05g of silver chloride to the above mixed solution; add 20ml of 0.01mol / L sodium borohydride dropwise to the above mixed solution The reaction time is 5 minutes. After the dropwise addition, react at 80° C. for 3 hours; centrifuge at 10,000 rpm for 10 minutes, and wash twice with absolute ethanol and distilled water to obtain silver nanowires.

[0026] A preparation of silver nanowire transparent conductive ink: with 50 parts by mass of PVA (molecular weight is 20000), 1 part by mass of defoamer (dimethyl polysilane), 0.5 part by mass of levelin...

Embodiment 2

[0030] Silver nanowires are prepared by the following method, comprising the following steps:

[0031] (1) Disperse 2.4 g of silver diammine hydroxide and 0.1 g of sodium polyacrylate dispersant with a molecular weight of 10,000 in 400 mL of distilled water, and obtain a mixed solution through magnetic stirring and ultrasonic dispersion;

[0032] (2) The above mixed solution is heated to 120°C in a water bath under the action of magnetic stirring; 0.08g of silver chloride is added to the above mixed solution; 0.01mol / L of 40ml sodium borohydride is added dropwise to the above mixed solution After the dropwise addition, react at 80° C. for 4 hours; centrifuge at 10,000 rpm for 10 minutes, and wash 3 times with absolute ethanol and distilled water to obtain silver nanowires.

[0033] A preparation of silver nanowire transparent conductive ink: with 60 parts by mass of PVA (molecular weight is 20000), 2 parts by mass of defoamer (dimethyl polysilane), 1 part by mass of leveling a...

Embodiment 3

[0036] Silver nanowires are prepared by the following method, comprising the following steps:

[0037] (1) Disperse 3.6 g of silver diammine hydroxide and 0.1 g of sodium polyacrylate dispersant with a molecular weight of 10,000 in 400 mL of distilled water, and obtain a mixed solution through magnetic stirring and ultrasonic dispersion;

[0038] (2) Heat the above mixed solution to 120°C in a water bath under the action of magnetic stirring; add 0.1g of silver chloride to the above mixed solution; add 45ml of 0.01mol / L sodium borohydride dropwise to the above mixed solution The reaction time is 8 minutes. After the dropwise addition, react at 85° C. for 4 hours; centrifuge at 10,000 rpm for 10 minutes, and wash 3 times with absolute ethanol and distilled water to obtain silver nanowires.

[0039] A preparation of silver nanowire transparent conductive ink: 70 parts by mass of PVC (molecular weight is 80000), 2 parts by mass of defoamer (dimethyl polysilane), 1 part by mass of...

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Abstract

The invention belongs to the technical field of conductive ink and discloses silver nanowire transparent conductive ink as well as a preparation method and application thereof. The conductive ink is composed of the following components in parts by mass: 50-75 parts of a polymer, 1-2 parts of a defoaming agent, 0.5-1 part of a leveling agent, 0.5-1 part of a dispersant and 23-49 parts of silver nanowires. The silver nanowires are prepared by the following steps: (1) dispersing a silver-containing compound and a dispersant into water so as to obtain a mixed solution, wherein the silver-containing compound is more than one of sliver diammonium hydroxide, silver fluoride and silver perchlorate; (2) heating the mixed solution, adding silver-containing precipitate, dropping a reducing agent solution, heating to carry out reactions after dropping is completed, centrifuging, and washing, thereby obtaining the silver nanowires. The conductive ink disclosed by the invention is a transparent conductive system, is free of solvent volatilization, is environmental-friendly, is high in drying efficiency, low in resource consumption, low in sheet resistance and meanwhile high in conductivity, flexibility and adhesion property, and the light transmittance of the conductive ink is greater than 85%.

Description

technical field [0001] The invention belongs to the technical field of conductive ink, and in particular relates to a silver nanowire transparent conductive ink and a preparation method and application thereof. Background technique [0002] The development of the modern printed electronics industry is changing with each passing day. As an important printing material, conductive ink is widely used in electronic labels, organic displays, transistor arrays, photovoltaic cells, flexible electronic devices and other fields. Printing technology is a deposition process that delivers ink to a substrate. Compared with the traditional photolithography process, electronic printing expands the choice of substrates, such as inexpensive, biodegradable, lightweight and foldable paper substrates. At present, the development and application of many new electronic products rely heavily on all-printed electronic technology, which is basically supported by functional conductive inks. However,...

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/106C09D11/102
CPCC09D11/102C09D11/106C09D11/52
Inventor 张念椿徐宁尚京旗陈洁伟敖玉银刘平
Owner SOUTH CHINA UNIV OF TECH
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