Modified vanadium dioxide composite film and preparation method thereof

A technology of vanadium dioxide and composite thin film, which can be used in coatings, luminescent coatings, etc., can solve problems such as the brownish yellow stability of vanadium dioxide-based smart glass coatings

Pending Publication Date: 2021-08-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a modified vanadium dioxide composite film and its preparation method, which are used to improve the defects of brownish yellow and poor stability of vanadium dioxide-based smart glass coating

Method used

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  • Modified vanadium dioxide composite film and preparation method thereof
  • Modified vanadium dioxide composite film and preparation method thereof
  • Modified vanadium dioxide composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take the resulting VO 2 @Sio 2 -KH550 hot discoloration material is dispersed into 10 mL of ethanol, and 1.0 g of polyvinyl butyrahyandehyde is added, and the mixed slurry is formed, and the rod is applied to the glass substrate, and the temperature is cured. VO 2 @Sio 2 -KH550 thermochromic monolayer membrane.

[0042] 0.03 g of 4,4'-bis (2-methoxystyrene) biphenyl is dissolved in 10 ml of dichloromethane, and 1.0 g of polyvinyl butyral butyraldehyde, stirring forms a uniform slurry, coated with roll Apply it to the above VO 2 @Sio 2 -Kh550 hot color changing film, room temperature curing, VO 2 @Sio 2 -KH550 / diphenylthylene fluorescent organic small molecule double composite film.

[0043] 0.6 g of polyvinyl alcohol was dissolved in 10 ml of deionized water, and the uniform slurry was stirred, and the rod was applied to the double composite film, cured at room temperature, VO 2 @Sio 2 -KH550 / Diphenylidene fluorescent organic small molecule / polymer three-layer composi...

Embodiment 2

[0045] 0.1g, 0.3g, 0.5g VO, respectively 2 @Sio 2 -KH550 powder is dispersed into 10 mL of ethanol, and then 1.0 g of polyvinyl butyral, stirring forms a uniform slurry, applied to the glass substrate with roller, and concentrates different VO. 2 @Sio 2 -Kh550 hot discoloration film.

[0046] 0.03 g of 4,4'-bis (2-methoxystyrene) biphenyl is dissolved in 10 ml of dichloromethane, and 1.0 g of polyvinyl butyral butyraldehyde, stirring forms a uniform slurry, coated with roll Apply it to the above VO 2 @Sio 2 -KH550 hot-changing film, room temperature, double-layer composite film having different heat insulation effects.

[0047] 0.6 g of polyvinyl alcohol was dissolved in 10 ml of deionized water, and a uniform slurry was stirred, and it was applied to the double composite film with a roller, and the thermal insulation effect was different. VO 2 @Sio 2 -KH550 / Diphenylidene fluorescent organic small molecule / polymer three-layer composite film. The composite film of three differe...

Embodiment 3

[0049] Preparation according to Example 1 2 @Sio 2 -KH550 thermal discoloration monolayer film;

[0050] 0.01 g, 0.03 g, 0.05 g of 4,4'-double (2-methoxystyrene) biphenyl is dissolved in 10 ml of dichloromethane, and then 1.0 g of polyvinyl butyrahyandehyde, stirring is uniform. Slurry, coating different concentrations of sluries into the above VO, respectively. 2 @Sio 2 -KH550 thermally discolored film, room temperature, double-layer composite film having different luminous intensities.

[0051] 0.6 g of polyvinyl alcohol was dissolved in 10 ml of deionized water, and a uniform slurry was stirred, and the rod was applied to the double-layer composite film, and the luminous intensity was different. VO 2 @Sio 2 -KH550 / Diphenylidene fluorescent organic small molecule / polymer three-layer composite film. The emission spectrum of the three composite films was tested under 365 nm ultraviolet radiation. image 3 Indicated. from image 3 It can be seen that due to the amount of 4,4'-dou...

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Abstract

The invention provides a modified vanadium dioxide composite film and a preparation method thereof, and belongs to the technical field of building energy conservation. The preparation method comprises the following steps: 1) preparing the modified vanadium dioxide-polymer coating; (2) preparing a fluorescent organic small molecule-polymer coating; (3) preparing a polymer coating; and 4) preparing the modified vanadium dioxide composite film. The preparation method is simple and easy to implement and suitable for industrial production, and the intelligent temperature control glass prepared based on the scheme can be widely applied to building doors and windows. The prepared terminal product, namely the modified vanadium dioxide composite film, can regulate and control the sunlight intake according to the change of the external temperature, and plays a role in regulating and controlling the interior of a building to be warm in winter and cool in summer.

Description

Technical field [0001] The present invention relates to the field of building energy-saving technologies, and more particularly to a composite film and a preparation method. Background technique [0002] In recent years, global energy consumption has continued to grow, and the demand for renewable energy is increasingly. It is well known that building energy consumption accounts for a large part of total energy consumption, and in building energy consumption, air conditioning energy consumption is around 2 / 3. Windows as the most important heat exchange channel for the building and the outside environment is one of the lowest energy efficiency, developing energy-saving features and adapting to my country's geographical feature, new energy-saving glass with high temperature differences in temperature differences is particularly important. Therefore, smart windows are shipped, it can effectively reduce energy consumption and achieve energy saving and emission reduction. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/00C09D129/14C09D7/62C09D5/22C09D129/04
CPCC03C17/009C09D129/14C09D7/62C09D5/22C09D129/04C03C2218/118C03C2217/74C08K9/10C08K9/06C08K3/22C08K5/06
Inventor 蒋绪川高迎聂永秦成远徐慧妍
Owner UNIV OF JINAN
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