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Method for preparing paper-based electrode based on coating method

A coating and electrode technology, applied in the field of paper electronics, can solve the problems that cannot be used in paper-based electronics, fast ink absorption speed, and affect the conductivity of conductive inks.

Active Publication Date: 2020-09-18
九江智汇科技新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The papers currently reported for printing paper-based electrodes are mainly photo-grade inkjet printing papers with small surface porosity and multi-layer functional structures (ink absorbing layer, ink barrier layer), while ordinary coated paper, offset paper, etc. As the most commonly used paper in printing and packaging, paper has been unable to be used in paper-based electronics despite its price advantage.
This is because the surface of these papers has high porosity, large pore size, and fast ink absorption speed. Most silver nanoparticles are easy to quickly penetrate into the interior of the paper fibers, greatly reducing the number of silver particles remaining on the surface of the paper, which seriously affects the conductivity. The conductivity of the ink on its surface; at the same time, the ink is easily diffused on the surface of the paper, which greatly reduces the edge smoothness and precision of the printed pattern

Method used

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  • Method for preparing paper-based electrode based on coating method
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  • Method for preparing paper-based electrode based on coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The composite of fluoropolymer and nano-silica particles is coated on the coated paper with a wire bar. After drying, the surface of the paper has low adhesion and hydrophobic properties. The contact angle is 120° and the surface adhesion is 20μN. Cover the surface of the paper with a stainless steel mask, then put it into the plasma treatment equipment, and treat it for 50s at a processing power of 10W. The surface contact angle of the hydrophilic area of ​​the treated paper is 40°, and the hydrophobic area below the non-hollow area The difference from the contact angle of the treated area is 80°.

[0048] Disperse silver nanoparticles with an average diameter of 60nm into a mixed solution containing ethylene glycol, water, and isopropanol to prepare a nano-silver conductive ink with a silver weight percentage of 70%, a viscosity of 1000cP, and a surface tension of 30mN / m. The composition of the solvent in the nano-silver conductive ink is: 20% of water, 30% of ethyl...

Embodiment 2

[0051] The composite of fluoropolymer and nano-silica particles is coated on the coated paper with a wire bar. After drying, the surface of the paper has low adhesion and hydrophobic properties. The contact angle is 120° and the surface adhesion is 20μN. Cover the surface of the paper with a stainless steel mask, then put it into the plasma treatment equipment, and treat it for 120s at a processing power of 10W. The surface contact angle of the hydrophilic area of ​​the treated paper is 10°, and the hydrophobic area below the non-hollow area The difference from the contact angle of the treated area is 110°.

[0052] Disperse silver nanoparticles with a diameter of 50nm into a mixed solution containing ethylene glycol, water, and a surfactant to prepare a nano-silver conductive ink with a silver weight percentage of 40%, a viscosity of 100cP, and a surface tension of 40mN / m . The composition of the solvent in the nano-silver conductive ink is: 20% of water, 30% of ethylene gly...

Embodiment 3

[0055] The nano-silica particles modified by fluoropolymer were coated on the offset paper with a wire bar. After drying, the surface of the paper had low adhesion and hydrophobic characteristics, the contact angle was 120°, and the surface adhesion was 10μN. Cover the stainless steel mask on the surface of the paper, then put it into the plasma treatment equipment, and treat it under the treatment power of 200W for 10s. The contact angle of the treated paper surface is 50°. The difference in the contact angles of the regions is 70°.

[0056] Disperse silver nanoparticles with a diameter of 100nm into a mixed solution containing ethylene glycol, water, and a surfactant to prepare a nano-silver conductive ink with a silver weight percentage of 20%, a viscosity of 10cP, and a surface tension of 20mN / m . The composition of the solvent in the nano-silver conductive ink is: 20% of water, 50% of ethylene glycol, and 10% of isopropanol, and the coating agent on the surface of the na...

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Abstract

The invention relates to a method for preparing paper-based electrodes based on a coating mode. The method comprises the following steps that a metal mask with a hollowed-out pattern structure is designed and manufactured; the surface of paper is coated with hydrophobic coating liquid; after the mask with the hollowed-out pattern structure is placed above the paper, plasma treatment is carried outon the paper positioned below the hollowed-out area of the mask; and a pattern is formed on the paper through the conductive ink coating mode, the electrodes are obtained through sintering treatment,and the pattern corresponds to the hollowed-out area of the mask. According to the method for preparing the paper-based electrodes based on the coating method, invisible patterns with wettability differences are obtained on the paper by hydrophobizing the surface of the paper and combining with a mask plasma treatment technology, and then coating of the conductive ink is carried out; and due to the wettability differences and the low adhesion force of a hydrophobic area, the ink of the hydrophobic area is completely soaked into a hydrophilic region, and the preparation of fine patterns with smooth edges and high conductivity is realized by taking the paper as a substrate.

Description

technical field [0001] The invention relates to the technical field of paper electronics, in particular to a method for preparing paper-based electrodes based on a coating method. Background technique [0002] Compared with plastic substrates, paper has the advantages of a wide range of raw materials, good toughness, light weight, easy degradation, and low price. It can be used as a substrate material for printed electronics to achieve low-cost, mechanically flexible, and biodegradable paper-based electronic devices. (paper-based electronics device). With the development of the preparation technology of conductive materials such as graphene, carbon nanotubes, metal nanoparticles, and liquid metals, as well as the solubilization treatment of nanomaterials, the printing methods such as silk screen printing, gravure printing, inkjet printing, and direct writing are used to prepare paper. Development of base electrode technology. [0003] The papers currently reported for prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M1/12B41M3/00H01B5/14H01B13/00
CPCB41M1/12B41M3/00H01B5/14H01B13/0026
Inventor 辛智青闫美佳李修方一莫黎昕郭振新李亚玲李路海
Owner 九江智汇科技新材料有限公司