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A kind of silver-based conductive ink and its preparation method and application

A conductive ink and silver-based technology, applied in the field of silver-based conductive ink and its preparation, can solve the problems of high sintering temperature and complicated operation steps, and achieve the effects of promoting the sintering temperature, reducing the surface energy, and promoting the reduction.

Active Publication Date: 2022-06-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above method has the problems of cumbersome operation steps and high sintering temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of silver-based conductive ink, the details are as follows:

[0024] (1) Preparation of hydroxymethylamine condensate stabilizer: dissolve 0.27g of anhydrous ethylenediamine solution in 1.70g of deionized water, then take 0.73g of formaldehyde solution with a mass fraction of 37%, and stir the formaldehyde solution It was added to the ethylenediamine solution, and the stabilizer was obtained after the reaction for 1 h.

[0025] (2) Take 0.67g of isopropanolamine successively, add 0.10g of the above stabilizer to 0.63g of deionized water, stir at 25°C for 20min until completely mixed, then take 0.50g of silver acetate and quickly add it to the mixed solution, at 25 Stir for 60 min at °C until completely dissolved and filter to obtain the silver-based conductive ink.

[0026] The silver-based conductive ink prepared in this example was sprayed on a polyimide substrate, sintered at 150 ° C for 50 min, and a conductive silver film was obtained by sinte...

Embodiment 2

[0028] A preparation method of silver-based conductive ink, the details are as follows:

[0029] (1) Preparation of hydroxymethylamine condensate stabilizer: dissolve 0.27g of anhydrous ethylenediamine solution in 1.70g of deionized water, then take 0.73g of formaldehyde solution with a mass fraction of 37%, and stir the formaldehyde solution It was added to the ethylenediamine solution, and the stabilizer was obtained after the reaction for 1 h.

[0030] (2) Take 0.67g of isopropanolamine in turn, add 0.20g of the above stabilizer to 0.63g of deionized water, stir at 25°C for 20min until fully mixed, then take 0.50g of silver acetate and quickly add it to the mixed solution, at 25 Stir for 60 min at °C until completely dissolved and filter to obtain the silver-based conductive ink.

[0031] The silver-based conductive ink prepared in this example was sprayed on a polyimide substrate, sintered at 150° C. for 50 minutes, and a conductive silver film was obtained by sintering. ...

Embodiment 3

[0033] A preparation method of silver-based conductive ink, the details are as follows:

[0034] (1) Preparation of hydroxymethylamine condensate stabilizer: Dissolve 0.27g of anhydrous ethylenediamine solution in 1.34g of deionized water, then take 1.09g of formaldehyde solution with a mass fraction of 37%, and stir the formaldehyde solution It was added to the ethylenediamine solution, and the stabilizer was obtained after the reaction for 1 h.

[0035] (2) Take 0.67g of isopropanolamine successively, add 0.10g of the above stabilizer to 0.63g of deionized water, stir at 25°C for 20min until completely mixed, then take 0.50g of silver acetate and quickly add it to the mixed solution, at 25 Stir for 60 min at °C until completely dissolved and filter to obtain the silver-based conductive ink.

[0036] The silver-based conductive ink prepared in this example was sprayed on a polyimide substrate, sintered at 150 ° C for 50 min, and a conductive silver film was obtained by sinte...

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Abstract

The invention discloses a silver-based conductive ink and its preparation method and application. The silver-based conductive ink consists of 10%-45% silver precursor, 10%-60% complexing agent, 1%-6 % of stabilizer, 10% to 80% of deionized water, the preparation process includes the following steps: first use amine complexes and formaldehyde solution to react to prepare methylolamine condensates as stabilizers, and then according to the above ratio The complexing agent and the stabilizer are sequentially added into the solvent, mixed, and finally the silver precursor is added into the mixed liquid, dissolved, and filtered to obtain the silver-based conductive ink. The stabilizer used in the silver-based conductive ink prepared by the present invention can not only act as a reducing agent, but also enhance the adhesion of the sintered silver film on the polyimide substrate, without pretreatment of the surface of the substrate, and the adhesion level is It can reach level 1 or above, the preparation process is simple, and it has extremely high practical value.

Description

technical field [0001] The invention belongs to the technical field of conductive ink, and particularly relates to a silver-based conductive ink and a preparation method and application thereof. Background technique [0002] Conductive ink was first developed by Americans in the 1990s. With the rapid development of the printed electronics industry and the promotion of developed countries such as the United States, Japan, South Korea, and Germany, the research and development of silver conductive ink has received extensive attention. After 2000, nanotechnology has been vigorously developed, and various nanomaterials have been discovered and developed, which has promoted the development of silver conductive ink. At present, silver conductive ink has been widely used in batteries, energy bands, radio frequency identification tags, organic light-emitting diodes, electronic circuits, sensors, displays, etc. [0003] Silver conductive ink mainly includes gold, silver and copper c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52B05D7/02B05D7/24B05D3/02
CPCC09D11/52B05D7/02B05D7/24B05D3/0254
Inventor 林保平朱运翠孙莹张雪勤杨洪
Owner SOUTHEAST UNIV
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