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Synthesis method of silver nanowire ink and preparation method of flexible conductive film

A technology of silver nanowires and synthesis method, applied in ink, nanotechnology, metal processing equipment and other directions, can solve problems such as high temperature sintering and curing, and achieve the effect of excellent electrical conductivity and excellent electrical conductivity.

Active Publication Date: 2020-11-10
世大新材料(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for synthesizing silver nanowire ink, which solves the problem of needing high temperature sintering and solidification after coating nano silver conductive ink in the prior art

Method used

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  • Synthesis method of silver nanowire ink and preparation method of flexible conductive film
  • Synthesis method of silver nanowire ink and preparation method of flexible conductive film

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preparation example Construction

[0035] A kind of preparation method of flexible conductive film of the present invention, specifically implement according to following steps:

[0036] Step (1), the silver nanowire ink prepared by the synthetic method of above-mentioned a kind of silver nanowire ink is evenly coated on the base material, obtains conductive film A after drying at room temperature; The thickness of silver nanowire conductive ink layer in conductive film A 1×10 -7 ~1×10 -6 m, the square resistance is 1×10 -6 Ω·cm~1×10 -4 Ω·cm, where the coating method is printing, such as lithography, inkjet printing, screen printing, etc., or wire bar coating method or Meyer rod coating method, and the substrate is paper, such as coated paper, offset printing paper etc., or plastic films, such as polyester (PET) film, polyethylene (PE) film, etc.;

[0037] In step (2), the conductive film A is dried and cured in a constant temperature drying oven, the curing temperature is 150°C to 300°C, and the curing tim...

Embodiment 1

[0039] Dissolve polycarbonate fiber, silver nitrate, polyvinylpyrrolidone PVP in ethylene glycol solution, and then add mass concentration 8×10 -5 g / mL ferric chloride aqueous solution to form a mixed solution, wherein the mass fraction of polycarbonate fiber in the mixed solution is 0.02%, the mass fraction of silver nitrate is 1.5%, the mass fraction of PVP is 2%, and the mass fraction of ferric chloride aqueous solution The fraction is 2%, and the mass fraction of ethylene glycol is 94.48%. The mixed solution is magnetically stirred at 50°C for 60min. After the color of the solution turns dark reddish brown, the temperature is raised to 140°C, and the temperature is magnetically stirred for 100min. After the reaction is finished, the mother liquor obtained by the reaction is centrifuged and washed with absolute ethanol several times to obtain a precipitate;

[0040]Take 0.22g of the above-mentioned precipitate and disperse it in 1mL of absolute ethanol to make the mass conc...

Embodiment 2

[0042] Dissolve polycarbonate fiber, silver nitrate, and polyvinylpyrrolidone PVP in the ethylene glycol solution, and then add a mass concentration of 1×10 -5 g / mL ferric chloride aqueous solution to form a mixed solution, wherein, in the mixed solution, the polycarbonate fiber mass fraction is 0.06%, the silver nitrate mass fraction is 1%, the PVP mass fraction is 1%, and the ferric chloride aqueous solution The mass fraction is 1%, and the mass fraction of ethylene glycol is 96.94%. The mixed solution is magnetically stirred at 60°C for 50 minutes. After the color of the solution turns dark reddish brown, the temperature is raised to 160°C, and the temperature is magnetically stirred for 90 minutes. After the reaction is finished, the mother liquor obtained by the reaction is centrifuged and washed with absolute ethanol several times to obtain a precipitate;

[0043] Take 0.44g of the above-mentioned precipitate and disperse it in 3mL of absolute ethanol to make the mass co...

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Abstract

The invention discloses a synthesis method of silver nanowire printing ink, which is specifically implemented according to the following steps: step 1, dissolving a certain amount of polycarbonate fibers, silver nitrate and polyvinylpyrrolidone (PVP) in an ethylene glycol solution, and then adding a ferric trichloride aqueous solution to obtain a mixed solution; step 2, magnetically stirring the mixed solution at 70 DEG C for 40 min, after the color of the solution becomes dark red brown, raising the temperature to 160 DEG C, and magnetically stirring at a constant temperature for 80 min to obtain a mother solution; 3, centrifugally cleaning the mother liquor obtained by the reaction in the step 2 with absolute ethyl alcohol for multiple times to obtain a precipitate; and 4, dispersing theprecipitate obtained in the step 3 in a solvent to obtain the silver nanowire ink. The problem that in the prior art, the nano-silver conductive ink needs to be sintered and cured at high temperatureafter being coated is solved. The invention also discloses a preparation method of the flexible conductive film.

Description

technical field [0001] The invention belongs to the technical field of ink preparation methods, and relates to a synthesis method of silver nanowire ink, and also relates to a preparation method of a flexible conductive film. Background technique [0002] Entering the 21st century, the upsurge of Internet technology is in full swing, and the demand of the mainstream electronic market has also been further deepened from the initial informatization development, and has become intelligent and personalized. Under this rapid development momentum, flexible electronics has risen rapidly, with broad application prospects and huge market potential. According to the forecast of Maximize Market Research, the flexible electronics industry is expected to grow by about 11% from 2017 to 2026, and the scale will reach 43.2 billion US dollars, and its application scope will far exceed the current fields of sensors, displays and thin-film solar cells. In the technical realization method of f...

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/033B22F9/24B22F1/00B82Y40/00
CPCC09D11/52C09D11/033B22F9/24B82Y40/00B22F1/07B22F1/0547
Inventor 侯成敏陈伊玉赵思远曹从军赵高扬
Owner 世大新材料(深圳)有限公司
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