Silver nanowire conductive ink for screen printing and preparation method thereof

A silver nanowire and conductive ink technology, applied in the field of printing ink, can solve the problems of difficult cleaning of printing stencils, unfavorable recycling, environmental pollution, etc., and achieve the effects of low cost, uniform printing, and good dispersion

Pending Publication Date: 2018-10-16
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are generally problems such as difficult cleaning of printing stencils, unfa

Method used

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  • Silver nanowire conductive ink for screen printing and preparation method thereof
  • Silver nanowire conductive ink for screen printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] First, add 400 mg of hydroxypropyl methylcellulose to deionized water, and stir until the cellulose is completely dissolved to form a uniform solution. Then add the ethanol dispersion of silver nanowires (the weight of the silver nanowires in the solution is 100 mg) into the aqueous solution of hydroxypropyl methylcellulose, heat and stir at 60°C until it becomes completely dry; finally add defoamer (0.1g) , Surfactant (0.1g), propylene glycol (0.1g), water (1.5g), mechanically stirred to form a uniformly dispersed ink. The square resistance comparison chart of the printed pattern is attached to the manual figure 1 Shown.

Example Embodiment

[0030] Example 2

[0031] First, add 400 mg of hydroxypropyl methylcellulose to deionized water, and stir until the cellulose is completely dissolved to form a uniform solution. Then add the ethanol dispersion of silver nanowires to the aqueous solution of hydroxypropyl methylcellulose (the weight of the silver nanowires in the solution is 200 mg), heat and stir at 60°C until it becomes completely dry; finally add defoamer (0.1g) , Surfactant (0.1g), propylene glycol (0.1g), water (1.5g), mechanically stirred to form a uniformly dispersed ink. The square resistance comparison chart of the printed pattern is attached to the manual figure 1 Shown.

Example Embodiment

[0032] Example 3

[0033] First, add 400 mg of hydroxypropyl methylcellulose to deionized water, and stir until the cellulose is completely dissolved to form a uniform solution. Then add the ethanol dispersion of silver nanowires to the aqueous solution of hydroxypropyl methylcellulose (the weight of the silver nanowires in the solution is 300 mg), heat and stir at 60°C until it becomes completely dry; finally add defoamer (0.1g) , Surfactant (0.1g), propylene glycol (0.1g), water (1.5g), mechanically stirred to form a uniformly dispersed ink. The square resistance of the printed pattern is like the manual attached figure 1 Shown.

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Abstract

The invention discloses a silver nanowire conductive ink for screen printing and a preparation method thereof. The silver nanowire conductive ink is prepared from the following raw materials of water,hydroxypropyl methylcellulose, propylene glycol, a defoaming agent, a surfactant and silver nanowires, wherein the water is used as a solvent; the hydroxypropyl methylcellulose is used as a rheological agent so as to provide thixotropy for the screen printing ink; the hydroxyl in the cellulose is strongly bonded with the surface of each silver nanowire; the defoaming agent is used for removing the small air bubbles produced on printing patterns; the propylene glycol is used for enhancing the wetting property and stability of the ink; the surfactant is used for reducing the surface tension ofthe ink so as to favorably improve the printing property of the ink; each silver nanowire is used as a conductor so as to effectively enhance the conductivity of the ink, and the conductive property of a printing electrode is obviously improved along with the increasing of the concentration of the silver nanowires in the ink.

Description

technical field [0001] The invention belongs to the technical field of printing ink, and in particular relates to a screen printing silver nanowire conductive ink and a preparation method thereof. Background technique [0002] Printed electronics has attracted intense interest in recent years. Printed electronics technology can flexibly prepare flexible electronics in a large area, with little impact on the environment and low cost, which is conducive to low-cost, large-area, continuous production of organic electroluminescent devices (OLED), organic solar cell devices (OPV), Optoelectronic devices such as capacitors. To fabricate printed electronics, a major challenge is the development of printable conductive inks. Traditional conductive materials, such as carbon nanotubes, graphene, silver nanoparticles, metal sheets, etc., are used to prepare printed conductive inks. [0003] Among them, the application of metal nanowires such as silver nanowires in printed electronic...

Claims

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Application Information

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IPC IPC(8): C09D11/14C09D11/52C09D11/033
CPCC09D11/033C09D11/14C09D11/52
Inventor 赖文勇李东东刘星黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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