Preparation of PET/nano silver wire transparent conductive film after illumination sintering

A transparent conductive film, nano silver wire technology, applied in cable/conductor manufacturing, conductive layer on insulating carrier, nanotechnology for material and surface science, etc., can solve the problem of poor surface hydrophobicity and antistatic property of PET , poor conductivity and adhesion of nano-silver wire film, uneven distribution of nano-silver wire, etc., to achieve the effect of low cost, excellent adhesion and easy operation

Active Publication Date: 2016-11-16
GUANGDONG NANOLUTION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there are still deficiencies, such as uneven distribution of nano-silver wires in the transparent conductive film, PET surface hydrophobicity and antistatic property are not strong, resulting in poor conductivity and adhesion of the nano-silver wire film

Method used

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  • Preparation of PET/nano silver wire transparent conductive film after illumination sintering

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Experimental program
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Effect test

Embodiment 1

[0026] Step 1) Cleaning of impurities on the surface of the PET substrate: Clean the 188um optical-grade double-sided hardened PET substrate with a mixed solvent with an absolute ethanol / acetone volume ratio of 1, then rinse the residual mixed solvent on the PET surface with distilled water, and vacuum at 80°C After drying, a PET substrate with a clean surface is obtained;

[0027] Step 2) Preparation of transparent conductive film: Precisely coat 0.2 mg / ml nano-silver wire ethanol dispersion on the surface-clean PET substrate obtained in step 1) by micro-gravure coating machine , after drying at room temperature for 60 minutes, and then use CO 2 The laser is used as a laser source with an output power of 200W and a scanning speed of 0.5m / s for laser line scanning sintering to prepare a PET / nano-silver wire transparent conductive film with a thickness of 40nm.

Embodiment 2

[0029] Step 1) Cleaning of impurities on the surface of the PET substrate: Clean the 188um optical-grade double-sided hardened PET substrate with a mixed solvent with an absolute ethanol / acetone volume ratio of 1, then rinse the residual mixed solvent on the PET surface with distilled water, and vacuum at 80°C After drying, a PET substrate with a clean surface is obtained;

[0030] Step 2) Preparation of transparent conductive film: Precisely coat 0.6 mg / ml nano-silver wire ethanol dispersion on the clean surface PET substrate obtained in step 1) by micro-gravure coating machine , after drying at room temperature for 90 minutes, and then using CO 2 The laser is used as a laser source with an output power of 200W and a scanning speed of 0.5m / s for laser line scanning sintering to prepare a PET / nano-silver wire transparent conductive film with a thickness of 40nm.

Embodiment 3

[0032] Step 1) Cleaning of impurities on the surface of the PET substrate: Clean the 188um optical-grade double-sided hardened PET substrate with a mixed solvent with an absolute ethanol / acetone volume ratio of 1, then rinse the residual mixed solvent on the PET surface with distilled water, and vacuum at 80°C After drying, a PET substrate with a clean surface is obtained;

[0033] Step 2) Preparation of transparent conductive film: Precisely coat 1 mg / ml nano-silver wire ethanol dispersion on the surface-clean PET substrate obtained in step 1) by using a micro-gravure coating machine, After drying at room temperature for 120 min, use CO 2 The laser is used as a laser source with an output power of 200W and a scanning speed of 0.5m / s for laser line scanning sintering to prepare a PET / nano-silver wire transparent conductive film with a thickness of 40nm.

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Abstract

The invention relates to the technical field of flexible transparent conductive films, and specifically discloses the preparation of a PET / nano silver wire transparent conductive film after illumination sintering. The method comprises the steps of PET substrate surface cleaning and transparent conductive film preparing. The step of PET substrate surface cleaning comprises the steps that an optically coated PET substrate after double-side hardening layer processing is used; an acetone and ethanol mixed solvent is used to clean the PET substrate; and rinsing with distilled water and drying are carried out to acquire the PET substrate with clean surface. The step of transparent conductive film preparing comprises the steps that a nano silver wire ethanol dispersion with the concentration of 0.05 to 15mg / ml is uniformly and densely coated on the surface of the PET substrate after surface cleaning in a precise coating manner; and after drying at room temperature, the nano silver wire transparent conductive film is prepared through laser scanning and sintering. The transparent conductive film provided by the invention has the advantages of strong electric conductivity, excellent adhesion, good flexing resistance, simple operation, low cost and wide application prospect.

Description

technical field [0001] The invention relates to the technical field of flexible transparent conductive films, in particular to the preparation of a PET / nano-silver wire transparent conductive film subjected to light sintering treatment. Background technique [0002] Transparent conductive film is a film with both electrical conductivity and high light transmittance, and is widely used in the fields of electronic components such as liquid crystal displays, touch panels and solar cells. In the future, mobile terminals, wearable devices, smart home appliances and other products will have a strong demand for touch panels. At the same time, with the large size and low price of touch panels, and the traditional ITO film can not be used for flexible applications, the conductivity and light transmission Many manufacturers have begun to research ITO substitutes, including nano-silver wires, metal grids, carbon nanotubes, and graphene. From the perspective of market response, the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14B82Y30/00H01B13/00
CPCH01B5/14B82Y30/00H01B13/00
Inventor 段镶锋段曦东李晓丰毛志浩
Owner GUANGDONG NANOLUTION SCI & TECH CO LTD
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