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Vanadium dioxide temperature control film and preparation method thereof

A vanadium dioxide and thin film technology, applied in the field of vanadium dioxide temperature control thin film and its preparation, can solve the problems of product failure, expensive equipment, easy oxidation, etc., and achieve the effects of less intermediate links, fast production speed and short production cycle

Pending Publication Date: 2022-04-12
赣江新区澳博颗粒科技研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology of vanadium dioxide thin film preparation is based on the technique of magnetron sputtering, and the preparation equipment of this technique is expensive, and the cost is higher, and in this technique, vanadium dioxide is easily oxidized into vanadium pentoxide in the process of magnetron sputtering lead to product failure

Method used

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Examples

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preparation example Construction

[0030] The invention provides a method for preparing a vanadium dioxide temperature-controlling film, comprising the following steps:

[0031] S1, preparing a vanadium dioxide dispersion liquid, the dispersion liquid comprising vanadium dioxide powder and an alcoholic solvent;

[0032] S2. Prepare temperature control ink, the temperature control ink includes vanadium dioxide dispersion liquid and transparent ink in S1; wherein, vanadium dioxide is 0.1% to 2% of the mass of the transparent ink;

[0033] S3. Printing the temperature-controlling ink described in S2 on the surface of the film using an ink printing process;

[0034] S4. For the film printed with the temperature-controlling ink in S3, the surface where the temperature-controlling ink is located is compounded and hot-pressed with a protective film to form a composite temperature-controlling film.

[0035] In the above-mentioned technical scheme of the present invention, the vanadium dioxide is dispersed with an alco...

Embodiment 1

[0045] This embodiment provides a method for preparing a vanadium dioxide temperature-controlling film, comprising the following steps:

[0046] (1) After mixing vanadium dioxide powder, sodium oleate and ethanol, a sand mill is used for high-speed sand milling. In the vanadium dioxide dispersion, the mass proportion of vanadium dioxide is 10%, and the mass proportion of sodium oleate is 0.2%; the sanding speed is 1500r / min, and the sanding time is 3h; the slurry after sanding is dried under reduced pressure to remove 50% of the solvent.

[0047] (2) Mix the vanadium dioxide dispersion and the transparent ink at 100KHz ultrasonic for 2 hours to obtain a temperature-controlled ink, and control the vanadium dioxide to be 1% of the quality of the added transparent ink;

[0048] (3) Print the temperature-controlled ink on the PET film, the speed of printing and coating is 60m / s, the thickness of printing and coating is 4μm, the adhesion is 91% and the number of times of friction r...

Embodiment 2

[0051] This embodiment provides a method for preparing a vanadium dioxide temperature-controlling film, comprising the following steps:

[0052] (1) After mixing vanadium dioxide powder, sodium oleate and ethylene glycol, use a sand mill to carry out high-speed sand milling. In the vanadium dioxide dispersion, the mass ratio of vanadium dioxide is 10%, and the mass ratio of sodium oleate is 10%. The ratio is 0.2%; the sanding speed is 1500r / min, and the sanding time is 3h; the slurry after sanding is dried under reduced pressure to remove 50% of the solvent.

[0053] (2) Mix the vanadium dioxide dispersion and the transparent ink at 100KHz ultrasonic for 2 hours to obtain a temperature-controlled ink, and control the vanadium dioxide to be 1% of the quality of the added transparent ink;

[0054] (3) Print the temperature-controlled ink on the PET film, the speed of printing and coating is 100m / s, the thickness of printing and coating is 2μm, the adhesion is 92% and the number ...

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Abstract

The invention relates to the technical field of temperature control materials, in particular to a vanadium dioxide temperature control film and a preparation method thereof. A preparation method of a vanadium dioxide temperature control film comprises the following steps that S1, vanadium dioxide dispersion liquid is prepared, and the dispersion liquid comprises vanadium dioxide powder and an alcohol solvent; s2, preparing temperature control printing ink, wherein the temperature control printing ink comprises the vanadium dioxide dispersion liquid in the S1 and transparent printing ink; s3, printing the temperature control ink in the step S2 on at least one surface of a thin film by adopting an ink printing process; and S4, performing composite hot pressing on the surface of the film printed with the temperature control ink in the step S3 with the temperature control ink by adopting a protective film to prepare the composite temperature control film. According to the preparation method, the printing ink material containing vanadium dioxide is printed on the film by adopting an ink printing technology, the preparation process is simple, the production efficiency of the vanadium dioxide temperature control film can be greatly improved, and oxidation failure of vanadium dioxide can be well avoided.

Description

technical field [0001] The invention relates to the technical field of temperature control materials, in particular to a vanadium dioxide temperature control film and a preparation method thereof. Background technique [0002] my country's building energy consumption, especially temperature control equipment such as air conditioning and heating, has accounted for about 30% of the total energy consumption according to statistics. Studies have found that the use of indoor air-conditioning systems and energy consumption can be effectively reduced by reflecting part of the heat radiation on the surface of buildings or automobile glass. Glass energy-saving film is mainly divided into two categories, thermal barrier film and light barrier film, which are used to block heat conduction and radiation heat transfer respectively. In residential and office buildings, hollow or argon double-glazed glass is generally used to block heat transfer. Double-layer glass can provide higher str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C08J7/04C08L67/02B32B27/36B32B27/06B32B38/14B32B37/06B32B37/10B32B33/00
Inventor 冯原邹瑞萍余艾冰
Owner 赣江新区澳博颗粒科技研究院有限公司
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