Preparation method of silver nanowire graphene oxide composite conductive thin film heater

A graphene composite, silver nanowire technology, applied in ohmic resistance heating, electric heating devices, heating element materials, etc., can solve problems such as poor film conductivity, achieve low cost, increase heating temperature, and enhance the effect of heating effect

Active Publication Date: 2016-11-16
NANJING UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

Although the preparation method is simple

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  • Preparation method of silver nanowire graphene oxide composite conductive thin film heater
  • Preparation method of silver nanowire graphene oxide composite conductive thin film heater
  • Preparation method of silver nanowire graphene oxide composite conductive thin film heater

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Embodiment 1

[0033] The preparation method of silver nanowire ethanol solution comprises the following steps:

[0034] 1) Add 16ml of ethylene glycol, 0.01g of sodium bromide, and 0.66g of polyvinylpyrrolidone into the reactor, then stir and heat to 165°C. Finally add 0.05g of silver chloride, after reacting for 3min, slowly add 4ml of ethylene glycol solution containing 0.22g of silver nitrate, the dropping rate is 0.4ml / min, the reaction time is 30min, and cooled to room temperature to obtain silver nanometer mother liquor.

[0035] 2) Pour the silver nanowire mother liquor into a centrifuge tube, centrifuge at 2000rpm for 30min, discard the precipitate, keep the upper silver nanowire mother liquor, add ethanol with 4 times the volume of the silver nanowire mother liquor, and then centrifuge at 6000rpm and remove The supernatant was repeated three times, and finally the precipitate was extracted and dispersed with ethanol to obtain an ethanol solution of silver nanowires.

[0036] The p...

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Abstract

The invention discloses a preparation method of a silver nanowire graphene oxide composite conductive thin film heater, and belongs to the technical field of flexible electronic materials and thin films. The preparation method manly comprises the steps of cleaning a substrate, preparing a composite thin film, carrying out treatment after strong light illumination and the like. A silver nanowire synthesized by an improved polyol process and graphene oxide prepared by an improved Hummers method are taken as raw materials, a transparent composite conductive thin film is coated through a simple spin-coating method filming technology at normal pressure and temperature, and the thin film is irradiated through strong light, so that the heating temperature of the thin film is improved and the heating uniformity of the thin film is strengthened. The heater is simple in structure, the raw materials are cheap, the preparation process is easy to operate and industrial production is facilitated.

Description

technical field [0001] The invention relates to the technical field of flexible electronic materials and thin film heaters. Specifically, it relates to a preparation method of a silver nanowire graphene oxide composite conductive film heater. technical background [0002] Conductive thin films are widely used in optoelectronics and microelectronics, such as thin film heaters, information display, information storage, energy conversion, bioelectronics and other devices. With the rapid development of intelligent electronic devices, people have a strong demand for future mobile terminals, wearable devices, smart home appliances and other products, such as the rapid defogging of glass by cars driving in winter, and the transparent glass of windows or buildings for indoor Heating, high transparency heatable display screen, etc. Achieving these smarts requires a transparent conductive film heater. At present, ITO film has been widely used as a transparent heater, but it not onl...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/34
CPCH05B3/14H05B3/34
Inventor 刘举庆黄维刘洋毛惠五许善琪周哲
Owner NANJING UNIV OF TECH
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