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Conductive polyethylene terephthalate (PET) touch screen film and preparation method thereof

A touch screen and conductive layer technology, applied in conductive paints, coatings, etc., can solve problems such as less work, and achieve the effects of low cost, uniform conductivity, and cheap raw materials

Inactive Publication Date: 2020-01-24
浙江磊峰塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Introduce a variety of additives to improve ink performance. To solve this problem, it is necessary to find additives that can be removed by simple handling to formulate inks. At present, there is very little work in this area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The silver conductive layer is weighed according to the following mass percentages: silver nanowire 0.2%, fluorocarbon surfactant 0.005%, dispersant 1%, ethylene glycol dibutyl ether 1.5%, ethylene glycol 2.5%, 2-hexyl 1% ethanol, and the balance is organic alcohol solvent; the particle size of silver nanowires is 25-45 nm, and the length is 10-20 μm. The organic alcohol solvent is methanol, and stirred for 30 minutes. Then filter through a filter with a pore size of 20 μm.

[0019] Coat a layer of binder solution on the PET base layer, and obtain the binder after drying. The drying method is infrared baking for 5-8 minutes, and then vacuum drying at 95-105°C for 5-8 minutes;

[0020] Prepare the silver conductive layer according to the mass percentage and stir for 20-30 minutes. After filtering through a filter membrane with a pore size of 20 μm, it is coated on the adhesive layer and dried to obtain a silver conductive network. The drying method is infrared baking for...

Embodiment 2

[0023] The silver conductive layer is weighed according to the following mass percentages: 1% silver nanowire, 0.05% fluorocarbon surfactant, 1% dispersant, 3% ethylene glycol dibutyl ether, 2% ethylene glycol, 2-hexyl Ethanol 1, and the balance is organic alcohol solvent.

[0024] Preferably, the particle size of the silver nanowires is 25-45 nm, and the length is 10-20 μm. The organic alcohol solvent is methanol, and stirred for 30 minutes. Then filter through a filter with a pore size of 20 μm.

[0025] Coat a layer of binder solution on the PET base layer, and obtain the binder after drying. The drying method is infrared baking for 5-8 minutes, and then vacuum drying at 95-105°C for 5-8 minutes;

[0026] Prepare the silver conductive layer according to the mass percentage and stir for 20-30 minutes. After filtering through a filter membrane with a pore size of 20 μm, it is coated on the adhesive layer and dried to obtain a silver conductive network. The drying method is i...

Embodiment 3

[0029] The silver conductive layer is weighed according to the following mass percentages: silver nanowire 1.5%, fluorocarbon surfactant 0.02%, dispersant 0.1%, ethylene glycol dibutyl ether 1%, ethylene glycol 2%, 2-hexyl Ethanol 1.2%, the balance is organic alcohol solvent.

[0030] Preferably, the particle size of the silver nanowires is 25-45 nm, and the length is 10-20 μm. The organic alcohol solvent is methanol, and stirred for 30 minutes. Then filter through a filter with a pore size of 20 μm.

[0031] Coat a layer of binder solution on the PET base layer, and obtain the binder after drying. The drying method is infrared baking for 5-8 minutes, and then vacuum drying at 95-105°C for 5-8 minutes;

[0032] Prepare the silver conductive layer according to the mass percentage and stir for 20-30 minutes. After filtering through a filter membrane with a pore size of 20 μm, it is coated on the adhesive layer and dried to obtain a silver conductive network. The drying method i...

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PUM

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Abstract

The invention discloses a conductive polyethylene terephthalate (PET) touch screen film and a preparation method thereof. The conductive PET touch screen film comprises a protective layer, a silver conductive layer, an adhesive layer and a PET base layer from outside to inside, wherein the silver conductive layer consists of 0.2-1.5% of silver nanowires, 0.005-0.05% of a fluorocarbon surfactant, 0.1-2% of a dispersant, 1-3% of ethylene glycol dibutyl ether, 2-5% of ethylene glycol, 1-2% of 2-hexyl ethanol and the balance of an organic alcohol solvent. The film has superior performance, easilyavailable materials and good electrical conductivity.

Description

technical field [0001] The invention belongs to the field of film technology, and in particular relates to a conductive PET touch screen film and a preparation method thereof. Background technique [0002] As a nano-indium tin metal oxide, ITO has good conductivity and transparency, and can cut off harmful electron radiation, ultraviolet rays and far infrared rays that are harmful to the human body. Therefore, indium tin oxide is usually sprayed on glass, plastic and electronic display screens, used as a transparent conductive film, and at the same time reduces harmful electron radiation and ultraviolet and infrared radiation. [0003] Among the oxide conductive films, the Sn-doped In2O3 (ITO) film has the highest transmittance and the best conductivity, and it is easy to etch fine patterns in acid solution, and the light transmittance is over 90%. The light transmittance and resistance of ITO are controlled by the ratio of In2O3 and SnO2, usually SnO2:In2O3=1:9. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D1/00C09D5/24C09D7/63
CPCC08J7/042C08J2367/02C08J2465/00C09D1/00C09D5/24C09D7/63
Inventor 樊祥通
Owner 浙江磊峰塑料科技有限公司
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