Conductive ink, preparation method thereof, reel-to-reel conductive film and preparation method of reel-to-reel conductive film

A technology of conductive ink and conductive polymer, which is applied in the direction of ink, household utensils, applications, etc., can solve the problems of poor conductivity, low light transmittance, high haze, etc., and achieve high yield, high light transmittance, and process simple effect

Inactive Publication Date: 2017-11-21
珠海纳金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the transparent conductive inks based on silver nanowires have the following problems: the conductivity still needs to be improved, the haze is still high, and the light transmittance is low, and most of them use non-patterned application processes such as coating, spraying, and scraping. , which cannot be achieved by a simple and efficient roll-to-roll printing process

Method used

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  • Conductive ink, preparation method thereof, reel-to-reel conductive film and preparation method of reel-to-reel conductive film
  • Conductive ink, preparation method thereof, reel-to-reel conductive film and preparation method of reel-to-reel conductive film
  • Conductive ink, preparation method thereof, reel-to-reel conductive film and preparation method of reel-to-reel conductive film

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preparation example Construction

[0065] A preparation method of conductive ink, comprising:

[0066] Material preparation steps: prepare each raw material according to the formula ratio, and set aside;

[0067] Activation step: adding the silver nano wire dispersion liquid of the formulated amount into the second container, adding the wetting dispersant of the formulated amount, stirring and dispersing to activate the silver nano wires to obtain the first mixture, and set aside;

[0068] Hydrolysis step: add the formula amount of conductive polymer into the first container, then add the formula amount of organic solvent, water and stir, then add the formula amount of silane coupling agent under stirring state, so that the silane coupling agent is partially hydrolyzed, spare;

[0069] pH value adjustment step: after completing the hydrolysis step, under agitation, add a formulated amount of pH regulator to the first container to adjust the pH to 7-8, then add a formulated amount of polymer resin under agitati...

Embodiment 1

[0086] A conductive ink, comprising the following raw materials by mass percentage:

[0087] Nano silver wire dispersion liquid 50%, conductive polymer 0.1%, silane coupling agent 0.01%, viscosity regulator 0.1%, organic solvent 9.45%, deionized water 40%, polymer resin 0.1%, pH regulator 0.1% , Non-ionic surfactant 0.1%, wetting and dispersing agent 0.01%, leveling agent 0.01%, defoamer 0.01%, metal nanoparticles 0.01%.

[0088] A preparation method of conductive ink, comprising:

[0089] Material preparation steps: prepare each raw material according to the formula ratio, and set aside;

[0090] Activation step: adding the silver nano wire dispersion liquid of the formulated amount into the second container, adding the wetting dispersant of the formulated amount, stirring and dispersing to activate the silver nano wires to obtain the first mixture, and set aside;

[0091] Hydrolysis step: add the formula amount of conductive polymer into the first container, then add the f...

Embodiment 2

[0104] A conductive ink, comprising the following raw materials by mass percentage:

[0105] Nano silver wire dispersion liquid 50%, conductive polymer 0.1%, silane coupling agent 0.01%, viscosity regulator 0.1%, organic solvent 9.45%, deionized water 40%, polymer resin 0.1%, pH regulator 0.1% , Non-ionic surfactant 0.1%, wetting and dispersing agent 0.01%, leveling agent 0.01%, defoamer 0.01%, metal nanoparticles 0.01%.

[0106] The difference in the preparation method of the roll-to-roll conductive film: Step 3: Plate roll production: The plate-making process of the roll-to-roll gravure plate roll usually engraves on the surface of the roll by electronic engraving. The inner layer of the drum is steel plate, the outer layer is copper-plated layer, the length is 550mm, and the circumference is 500mm. After the graphics are input into the computer, the computer transmits the signal to the electronic engraving machine, and engraves a 50um, 60 lines / cm solid-color rhombus patte...

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Abstract

The invention discloses conductive ink which comprises, in weight percentage, 5-50% of silver nano-wire dispersion liquid, 0.1-5% of conductive macromolecules, 0.01-0.5% of silane coupling agents, 0.1-5% of viscosity adjusting agents, 5-40% of organic solvents, 5-40% of deionized water, 0.1-5% of macromolecule resins, 0.1-5% of pH (potential of hydrogen) value adjusting agents, 0.1-0.5% of non-ionic surface active agents, 0.01-0.5% of wetting dispersants, 0.01-0.5% of leveling agents, 0.01-0.5% of defoaming agents and 0.01-1% of metal nano-particles. The invention further discloses a preparation method of the conductive ink, a reel-to-reel conductive film and a preparation method of the reel-to-reel conductive film. The conductive film prepared by the conductive ink has the advantages of low resistance, haze and production cost, good conductivity and high light transmittance and can be optionally bent and twisted, and the requirements of flexible touch screens can be met.

Description

technical field [0001] The invention relates to a conductive ink, in particular to a conductive ink and a preparation method, a roll-to-roll conductive film and a preparation method. Background technique [0002] At present, personal consumer electronic products mainly use hard inorganic oxide materials such as indium tin oxide (ITO) as the core parts of mobile phone touch screens, solar energy, electromagnetic shielding, LED displays, electroluminescent devices, membrane switches, and cold light sheets. , Indium tin oxide is difficult to apply in flexible optoelectronic devices due to its brittleness and difficult to achieve bending defects. Coupled with the high processing cost and high energy consumption of indium tin oxide, patterning needs to go through cumbersome process steps such as masking, exposure, development, etching, and water washing, which has brought many troubles to the electronics industry. More importantly, ITO cannot realize roll-to-roll processing, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52
CPCC09D11/52
Inventor 雷震吴浩松丁轶
Owner 珠海纳金科技有限公司
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