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A kind of transparent conductive film and preparation method thereof

A transparent conductive film, transparent conductive technology, applied to conductive layers on insulating carriers, conductive materials dispersed in non-conductive inorganic materials, inks, etc., can solve the problem of low transmittance of transparent conductive films, inability to achieve patterning, It is not suitable for problems such as rigid substrates, and achieves the effect of increasing the probability of overlap, low surface resistance, and reducing surface roughness.

Active Publication Date: 2017-09-29
珠海纳金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application 201110058431.X discloses a patterned flexible transparent conductive film and its manufacturing method. This invention proposes techniques such as substrate embossing and then scraping conductive ink to prepare transparent conductive films, but this technology is not suitable for rigid substrates. , and the non-imprinting part of the scraping process is prone to ink residue
This method is also obtained by photocuring after screen printing, but due to the high resin content, high ink solid content (over 60%), and the thicker film layer obtained by screen printing according to the current screen thickness, the square resistance will eventually be biased. Large, low light transmittance, high haze
Chinese patent application 201510526785.0 discloses a preparation method of transparent conductive nano-silver ink and transparent conductive film. The nano-silver coating liquid is directly coated on the substrate by a coating machine, and patterning cannot be realized.
The transparent conductive film has the characteristics of low light transmittance and high haze, and the transparent conductive layer uses a coating process, which cannot be patterned

Method used

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  • A kind of transparent conductive film and preparation method thereof
  • A kind of transparent conductive film and preparation method thereof
  • A kind of transparent conductive film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Prepare transparent conductive ink as follows:

[0047] Get 250g PEDOT / PSS (Germany Heraeus PH1000) in 2000mL beaker, under the stirring of 500r / min, add the isopropanol solution of 250g nano-silver wire (wherein the concentration of nano-silver wire is 10mg / mL, average wire diameter is 40nm, The average line length is 40μm, the aspect ratio is 1000, figure 1 It is a 10,000-fold magnification of the scanning electron microscope of the nano-silver wire. figure 2 It is the 100,000-fold magnification of the scanning electron microscope of the silver nanowire), after dispersing for 10 minutes, add 50g of dimethyl sulfoxide, 20g of alkali-soluble thickener (Rohm and Haas ASE-60), and surfactant (Tego dispersers740w) in sequence 5g, leveling agent (Tego Glid410) 5g, water-based polyurethane 5g, continue to disperse for 10min, then add isopropanol: deionized water=1: 1 mixed solvent 415g, continue to disperse for 10min, then add 5g ammoniacal liquor, adjust the pH value at ...

Embodiment 2

[0051] Prepare transparent conductive ink as follows:

[0052] Get 350gPEDOT / PSS (Germany Heraeus PH1000) in 2000mL beaker, under the stirring of 500r / min, add the isopropanol solution of 150g nano-silver wire (wherein the concentration of nano-silver wire is 10mg / mL, the average wire diameter is 30nm, The average line length is 30 μm, the aspect ratio is 1000), after dispersing for 10 minutes, add 50 g of dimethyl sulfoxide, 20 g of hydroxypropyl methylcellulose, 5 g of surfactant (TRITONx100), and 5 g of leveling agent (Tego Glid410) , 5g of water-based acrylic resin, continue to disperse for 10min, then add 415g of mixed solvent of isopropanol: deionized water=1:1, continue to disperse for 10min, then add 4g of diethanolamine, adjust the pH value between 8 and 9, and ultrasonically vibrate 5min, after mixing evenly, a transparent conductive ink for screen printing was prepared.

[0053] Prepare transparent conductive film according to the following method:

[0054] Using ...

Embodiment 3

[0056] Prepare transparent conductive ink as follows:

[0057] Take 350g PEDOT / PSS (purchased from Shanghai Chunyuan Phytochemical Co., Ltd.) in a 2000mL beaker, add 150g nano-silver wire propylene glycol methyl ether solution under stirring at 500r / min (wherein the nano-silver wire concentration is 10mg / mL, the average wire Diameter is 30nm, average line length is 30μm, aspect ratio 1000), after dispersing for 10min, add dimethyl sulfoxide 50g, hydrophobically modified non-polyurethane thickener (L100 of Rockwood) 20g, surfactant ( BYK-151) 5g, leveling agent (TegoGlid410) 5g, water-based acrylic resin 5g, continue to disperse for 10min, then add ethylene glycol: deionized water = 1: 1 mixed solvent 415g, continue to disperse for 10min, then add 5g of triethanolamine , adjust the pH value between 8 and 9, ultrasonically oscillate for 5 minutes, and mix evenly to prepare a transparent conductive ink for silk screen printing.

[0058] Prepare transparent conductive film accord...

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Abstract

The present invention discloses a transparent conductive film. The transparent conductive film comprises a transparent conductive printing ink and base materials, wherein the transparent conductive printing ink includes, parts by weight, nanometer silver wire dispersion liquid of 0.5-50 parts, poly-(3,4-ethylendioxythiophene)-poly-(styrene sulfonic acid) of 15-35 parts, an organic solvent of 5-40 parts, deionized water of 5-40 parts, dimethyl sulfoxide of 1-8 parts, a viscosity modifier of 0.1-5 parts, a pH modifier of 0.01-1 parts, a surface active agent of 0.01-2 parts, a flatting agent of 0.01-1 parts and an adhesion promoter of 0.1-0.5 parts. The present invention further discloses the preparation method of the transparent conductive film. The transparent conductive film is high in optical transmittance, low in haze, low in surface sheet resistance and low in production cost.

Description

technical field [0001] The invention belongs to the field of conductive films, in particular to a transparent conductive film and a preparation method thereof. Background technique [0002] With the increasing material level, consumers' requirements for electronic products are rapidly developing in terms of thinner, lighter, more flexible, and more visualized. Flexible display technology enables the display to have the characteristics of being able to bend or curl into any shape, and has the characteristics of being light, thin and easy to carry. Personal consumer electronics products on the existing market mainly use hard inorganic oxide materials such as indium tin oxide (ITO) as products such as mobile phone touch screens, solar energy, electromagnetic shielding, LED displays, electroluminescent devices, membrane switches, and cold light sheets. core part. Indium tin oxide is difficult to apply in flexible optoelectronic devices due to its brittleness and difficulty in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B1/22C09D11/52
CPCC09D11/52H01B1/22H01B5/14
Inventor 吴浩松丁轶雷震
Owner 珠海纳金科技有限公司
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