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Preparation method of pet/nano-silver wire transparent conductive film treated by light sintering

A technology of transparent conductive film and nano-silver wire, which is applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, nanotechnology for materials and surface science, etc. It can solve the poor conductivity and adhesion of nano-silver wire film , The surface hydrophobicity and antistatic property of PET are not strong, and the distribution of nano-silver wires is uneven, etc., to achieve the effect of increasing conductivity and adhesion, low cost and excellent adhesion

Active Publication Date: 2017-12-29
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 method of pet/nano-silver wire transparent conductive film treated by light sintering

Examples

Experimental program
Comparison scheme
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 a method for preparing a PET / nano-silver wire transparent conductive film treated by light sintering, including: removing impurities on the surface of a PET substrate and preparing a transparent conductive film; the PET The removal of impurities on the surface of the substrate includes: selecting an optical-grade coated PET substrate that has been treated with a double-sided hardening layer, and using a mixed solvent of acetone and ethanol to remove impurities from the PET substrate, rinsing with distilled water, and drying to obtain a PET substrate with a clean surface; The preparation of the transparent conductive film includes: adopting the method of precision coating to uniformly and densely coat the nano-silver wire ethanol dispersion liquid with a concentration of 0.05-15mg / ml on the surface of the PET substrate after the surface is removed, and then dry it at room temperature Nano-silver wire transparent conductive film was prepared by laser line scanning sintering. The transparent conductive film of the invention has strong conductivity, excellent adhesion, good flex resistance, easy operation, low cost and broad application prospects.

Description

technical field [0001] The invention relates to the technical field of flexible transparent conductive films, in particular to a method for preparing PET / nano-silver wire transparent conductive films 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 ...

Claims

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Application Information

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