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Preparation method of titanium dioxide/graphene flexible electrothermal film

A titanium dioxide and alkene flexible technology, applied in the field of electrothermal film preparation, can solve the problems of short service life, poor flexibility and high cost, achieve good electrothermal characteristics and improve the effect of specific surface area

Inactive Publication Date: 2019-12-24
SHAANXI UNIV OF SCI & TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the graphene electrothermal film prepared by the existing technology has problems such as high cost, poor flexibility and short service life.

Method used

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  • Preparation method of titanium dioxide/graphene flexible electrothermal film
  • Preparation method of titanium dioxide/graphene flexible electrothermal film

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preparation example Construction

[0023] A preparation method of titanium dioxide / graphene flexible electrothermal film, comprising the following steps:

[0024] 1) Wash the PET film with deionized water and ethanol respectively, and dry it in the air.

[0025] 2) Weigh 10g of graphene and add 100ml of TiF with a concentration of 40mM 4 React in the solution at 60°C for 1 to 3 hours, wash and dry the precipitate with water and ethanol to obtain TiO 2 / Graphene powder.

[0026] 3) Weigh 9g of acrylic resin, 3g of propylene glycol methyl ether acetate, 1g of propylene glycol methyl ether and 27g of dipropylene glycol methyl ether in a reaction kettle, and heat at 100°C for 5 hours in a homogeneous reactor to obtain an acrylic resin solution .

[0027] 4) Weigh 10g of TiO 2 Graphene and carbon black (mass ratio is 1:3~5) add in the acrylic resin solution of 50g step 3), stir 1 hour, obtain TiO 2 / graphene slurry.

[0028] 5) The prepared TiO 2 / Graphene slurry is coated on PET film by screen printing, a...

Embodiment 1

[0031] 1) Wash the PET film with deionized water and ethanol respectively, and dry it in the air.

[0032] 2) Weigh 10g of graphene and add 100ml of TiF with a concentration of 40mM 4 The solution was reacted at 60°C for 3 hours, and the precipitate was washed and dried with water and ethanol to obtain TiO 2 / Graphene powder.

[0033] 3) Weigh 9g of acrylic resin, 3g of propylene glycol methyl ether acetate, 1g of propylene glycol methyl ether and 27g of dipropylene glycol methyl ether in a reaction kettle, and heat at 100°C for 5 hours in a homogeneous reactor to obtain an acrylic resin solution .

[0034] 4) Weigh 10g of TiO 2 Graphene and carbon black (mass ratio is 1:3) add step 3) in the acrylic resin solution, stir 1 hour, obtain TiO 2 / graphene slurry.

[0035] 5) The prepared TiO 2 / Graphene slurry is coated on PET film by screen printing, and after drying at 120°C for 10 minutes, TiO 2 / Graphene flexible electrothermal film. After applying a voltage of 15V...

Embodiment 2

[0037] 1) Wash the PET film with deionized water and ethanol respectively, and dry it in the air.

[0038] 2) Weigh 10g of graphene and add 100ml of TiF with a concentration of 40mM 4 The solution was reacted at 60°C for 3 hours, and the precipitate was washed and dried with water and ethanol to obtain TiO 2 / Graphene powder.

[0039] 3) Weigh 9g of acrylic resin, 3g of propylene glycol methyl ether acetate, 1g of propylene glycol methyl ether and 27g of dipropylene glycol methyl ether in a reaction kettle, and heat at 100°C for 5 hours in a homogeneous reactor to obtain an acrylic resin solution .

[0040] 4) Weigh 10g of TiO 2 Graphene and carbon black (mass ratio is 1:4) add step 3) in the acrylic resin solution, stir 1 hour, obtain TiO 2 / graphene slurry.

[0041] 5) The prepared TiO 2 / Graphene slurry is coated on PET film by screen printing, and after drying at 120°C for 10 minutes, TiO 2 / Graphene flexible electrothermal film. After applying a voltage of 15V...

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Abstract

The invention discloses a preparation method of a titanium dioxide / graphene flexible electrothermal film, which comprises the following steps: respectively cleaning a PET film with deionized water andethanol and air-drying the PET film; weighing graphene, adding the graphene into a TiF4 solution for a reaction, cleaning the precipitate with water and ethanol after the reaction is finished, and then drying the precipitate to obtain TiO2 / graphene powder; respectively weighing acrylic resin, propylene glycol methyl ether acetate, propylene glycol methyl ether and dipropylene glycol methyl ether,adding the reactants into a reaction kettle, and carrying out a homogeneous reaction to obtain an acrylic resin solution; weighing TiO2 / graphene powder and carbon black, adding the TiO2 / graphene powder and the carbon black into the acrylic resin solution, and stirring the solution to obtain TiO2 / graphene slurry; and coating a PET film with the TiO2 / graphene slurry, and drying the PET film to obtain the TiO2 / graphene flexible electrothermal film. The method for preparing the TiO2 / graphene flexible electrothermal film is simple in process, good in repeatability and low in cost.

Description

technical field [0001] The invention relates to a method for preparing an electrothermal film, in particular to a method for preparing a titanium dioxide / graphene flexible electrothermal film. Background technique [0002] With the continuous development of the economy and the enhancement of environmental awareness, people's demand for electric heating equipment and electric physiotherapy products continues to grow. Carbon materials such as carbon crystals and carbon fibers are the most common electrothermal materials. As a new type of carbon material, graphene has unique structure and physical and chemical properties. When used as an electrothermal film, graphene has the advantages of fast heating, uniform heating and high heating efficiency. However, the graphene electrothermal film prepared by the prior art has problems such as high cost, poor flexibility and short service life. Contents of the invention [0003] The object of the present invention is to provide a ki...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08L67/02C09D133/04C09D7/61
CPCC08J2367/02C08J2433/04C08K3/04C08K2003/2241C08K3/042
Inventor 霍京浩原晓艳郑鹏刘毅张利锋王晓飞赵丹郭守武
Owner SHAANXI UNIV OF SCI & TECH
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