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Preparation method of high-temperature service silver nanowire conductive film heater

A technology of silver nanowires and conductive films, which is applied in the field of preparation of silver nanowire conductive film heaters for high-temperature service, can solve problems such as uneven heating and low temperature resistance, and achieve not easy breakage, improved high temperature resistance, and lap joints tight effect

Active Publication Date: 2019-05-28
NANJING SILVERNANO NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: Aiming at the above-mentioned prior art, a method for preparing a silver nanowire conductive film heater for high-temperature service is proposed, so as to solve the problems that the current silver nanowire conductive film heater is not resistant to high temperature and unevenly heated

Method used

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  • Preparation method of high-temperature service silver nanowire conductive film heater
  • Preparation method of high-temperature service silver nanowire conductive film heater
  • Preparation method of high-temperature service silver nanowire conductive film heater

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A method for preparing a silver nanowire conductive film heater in service at high temperature includes the following steps:

[0023] Step 1: Disperse the silver nanowires synthesized by the polyol method in an ethanol solution to obtain a silver nanowire colloid with a concentration of 2.5 mg / mL.

[0024] Step 2: Add a graphene oxide dispersion with a concentration of 0.4 mg / mL to the silver nanowire colloid to obtain a silver nanowire ink; wherein the volume ratio of the silver nanowire colloid to the graphene oxide dispersion is 95:5.

[0025] Step 3: Coating the silver nanowire ink on the high-temperature resistant substrate by scraping, spraying, spin coating and other techniques to obtain a silver nanowire film. The high temperature resistant substrate is glass or ceramic, and the substrate is ultrasonically cleaned in acetone, ethanol, and deionized water for 20-30 minutes.

[0026] Step 4: Put the coated silver nanowire film into 0.3 mol / mL tin tetrachloride aqueous sol...

Embodiment 2

[0032] A method for preparing a silver nanowire conductive film heater in service at high temperature includes the following steps:

[0033] Step 1: Disperse the silver nanowires synthesized by the polyol method in an ethanol solution to obtain a colloidal silver nanowire with a concentration of 4.5 mg / mL.

[0034] Step 2: Add a graphene oxide dispersion with a concentration of 0.2 mg / mL to the silver nanowire colloid to obtain a silver nanowire ink; wherein the volume ratio of the silver nanowire colloid to the graphene oxide dispersion is 95:5.

[0035] Step 3: Coating the silver nanowire ink on the high-temperature resistant substrate by scraping, spraying, spin coating and other techniques to obtain a silver nanowire film. The high temperature resistant substrate is glass or ceramic, and the substrate is ultrasonically cleaned in acetone, ethanol, and deionized water for 20-30 minutes.

[0036] Step 4: Put the coated silver nanowire film into a tin tetrachloride aqueous solution w...

Embodiment 3

[0042] A method for preparing a silver nanowire conductive film heater in service at high temperature includes the following steps:

[0043] Step 1: Disperse the silver nanowires synthesized by the polyol method in an ethanol solution to obtain a silver nanowire colloid with a concentration of 10 mg / mL.

[0044] Step 2: Add a graphene oxide dispersion with a concentration of 0.8 mg / mL to the silver nanowire colloid to obtain a silver nanowire ink; wherein the volume ratio of the silver nanowire colloid to the graphene oxide dispersion is 95:5.

[0045] Step 3: Coating the silver nanowire ink on the high-temperature resistant substrate by scraping, spraying, spin coating and other techniques to obtain a silver nanowire film. The high temperature resistant substrate is glass or ceramic, and the substrate is ultrasonically cleaned in acetone, ethanol, and deionized water for 20-30 minutes.

[0046] Step 4: Put the coated silver nanowire film into 0.8 mol / mL tin tetrachloride aqueous solu...

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Abstract

The invention discloses a preparation method of a high-temperature service silver nanowire conductive film heater. The preparation method comprises the following steps: adding graphene oxide into a silver nanowire colloid; coating the mixture on a high-temperature-resistant substrate; and soaking the film in a tin tetrachloride aqueous solution for 20 seconds, drying, preparing wire electrodes atthe two ends of the conductive film, connecting the wire electrodes with metal wires, and coating a nano-scale protection layer on the substrate by using film forming technologies such as blade coating, spraying and spin coating to obtain the high-temperature-resistant silver nanowire conductive film heater. The resistance of the silver nanowire conductive thin film prepared by the method is not obviously changed after the silver nanowire conductive thin film repeatedly works for 200 times at the high temperature of 350 DEG C.

Description

Technical field [0001] The invention relates to a preparation method of a silver nanowire conductive film heater for high-temperature service. Background technique [0002] With the development of science and technology, the society's demand for conductive films is increasing day by day. Silver nanowires have excellent electrical conductivity and mechanical strength. Silver nanowire conductive film has many advantages: simple preparation process, low cost, good repeatability and so on. These advantages have made conductive films containing silver nanowires widely studied and become another effective way to replace existing conductive films. However, the preparation process of the conductive film of the traditional heater is complicated and costly. In the prior art, most of the conductive film is directly prepared by using bare metal nanowires. The conductive film is not resistant to high temperature and corrosion, so the research and development process is simple, cheap, and cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34
Inventor 杨泽芳时君季书林
Owner NANJING SILVERNANO NEW MATERIALS TECH CO LTD