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Intelligent temperature-control energy-saving composite coating film

An intelligent temperature control and composite sticking technology, applied in the direction of film/flake adhesives, coatings, layered products, etc., can solve the problems of destroying the vanadium dioxide structure, and no modification method is proposed, and achieve the preparation process. Innovation, improved chemical stability and dispersion, effect of changing surface properties

Inactive Publication Date: 2014-02-19
FSPG HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Chinese patent application number: 200610117027.4 mentions a preparation method of vanadium dioxide suspension, which involves the dispersion treatment of vanadium dioxide powder, but it adopts the method of inorganic modification, which is different from the organic modification scheme adopted by the present invention The preparation of vanadium dioxide composite particles is essentially different, and the use of acidic or alkaline conditions in the invention will destroy the structure of vanadium dioxide
[0007] Chinese Patent Application No.: 200980123044.0 thermochromic microparticles and its dispersion and manufacturing method, as well as light-adjustable coatings, light-adjustable films, and light-adjustable inks, mentioned the surface treatment of light-adjustable paint particles, but it did not propose specific Modification method, and the invention deals with titanium dioxide and vanadium dioxide composite particles, which are essentially different from the vanadium dioxide composite powder involved in the content of the invention of this patent

Method used

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preparation example Construction

[0051] In the preparation method of the vanadium dioxide composite powder of the present invention, comprising, the vanadium dioxide nano-powder is dispersed in the dispersing medium, obtains the operation of mixture A; The process of organically modifying the organic modifier of long-chain molecules on the surface of vanadium oxide powder, stirring until fully mixed to obtain mixture B; drying the mixture B to obtain organically modified vanadium dioxide composite powder.

[0052] The preparation method of the above-mentioned vanadium dioxide composite powder, specifically, the vanadium dioxide powder with a weight percentage content of 1-50% and the dispersion medium of 50-99% can be stirred at a high speed to disperse and mix, and then ultrasonically dispersed to obtain a mixture, Then add dispersing aid and organic modifier to the mixture, stir at a constant temperature of 0-200°C, disperse by means of ultrasound, sand mill or ball mill, centrifuge and precipitate, and vacu...

Embodiment 1

[0071] (1) Surface organic modification of vanadium dioxide nanopowder:

[0072] Take the mass of each component as follows:

[0073] Vanadium dioxide nanopowder (doped with tungsten, particle size 20-100nm), 20g

[0074] Ethanol (dispersion medium), 80g

[0075] Silane coupling agent (containing polyvinyl alcohol group, organic modifier), 1g

[0076] Polyvinylpyrrolidone (dispersion aid), 0.05g;

[0077] First, the vanadium dioxide nano-powder and the dispersion medium were stirred and dispersed at a high speed of 1500rad / min for 30 minutes, and ultrasonically dispersed for 30 minutes, then the dispersion aid and silane coupling agent were added, and stirred at a constant temperature of 70°C on a high-speed mixer for 2 hours. Centrifuge again and dry in vacuum at 60°C to obtain a vanadium dioxide composite powder modified by an organosilicon coupling agent;

[0078] (2) Preparation of vanadium dioxide composite powder slurry:

[0079] Take the mass of each component as f...

Embodiment 2

[0098] (1) Surface organic modification of vanadium dioxide nanopowder:

[0099] Take the mass of each component as follows:

[0100] Vanadium dioxide nanopowder (without doping, particle size 20-100nm), 10g

[0101] Ethanol (dispersion medium), 90g

[0102] Silane coupling agent (containing long chain alkylamine group, organic modifier), 1g

[0103] Polyvinyl alcohol (dispersion aid), 0.05g

[0104] First, the vanadium dioxide nanopowder and dispersion medium were dispersed under high-speed stirring at 1500rad / min for 30 minutes, and ultrasonically dispersed for 30 minutes, then the dispersing aid and stearic acid were added, and stirred at a constant temperature of 60°C on a high-speed mixer for 2 hours, and then Centrifugal precipitation, vacuum drying at 60°C to obtain vanadium dioxide nanocomposite powder modified with long-chain alkylamine groups;

[0105] (2) Preparation of vanadium dioxide composite powder slurry:

[0106] Take the mass of each component as follow...

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Abstract

Disclosed is an intelligent, temperature-controlling, and energy-saving composite film, comprising a release film layer, a mounting glue coating, a vanadium dioxide intelligent temperature-controlling coating of the present invention, a substrate and a functional surface layer from inside to outside. The intelligent temperature-controlling coating is formed by mixing a vanadium dioxide slurry, a polymer emulsion and a coating aid, and coating the mixture on the substrate. The vanadium dioxide slurry comprises a vanadium dioxide composite powder and a dispersing medium, the vanadium dioxide composite powder having a vanadium dioxide nano-powder body with a chemical composition of V1-xMxO2, and the surface of the nano-powder body being grafted with organic modified long-chain molecules, wherein M is a doping element with 0<=x<=0.5. The intelligent, temperature-controlling, and energy-saving composite film of the present invention has a multi-layer structure, the functional surface layer thereof providing high performance such as scratch resistance, wear resistance or stain resistance, fingerprint resistance, static resistance, etc., and can satisfy the requirements of wear resistance needed for daily washing and keep buildings as though new for a long time.

Description

technical field [0001] The invention relates to an intelligent temperature-controlled energy-saving composite film. The intelligent temperature-controlled energy-saving film of this invention can realize two-way adjustment of cold and heat, achieve the effect of keeping warm in winter and keeping cold in summer, thereby effectively saving energy. It is mainly used in building doors and windows, automotive glass or industrial metal containers. Background technique [0002] my country's building energy consumption has accounted for 27.8% of the total energy consumption of the society, of which heating and air conditioning energy consumption accounted for 55% of the total building energy consumption. In modern buildings, glass accounts for an increasing proportion of the external wall area. It is estimated that the heat transfer through glass windows accounts for 48% and 71% respectively in winter and summer. If the air conditioner is used to adjust the indoor temperature, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J7/04C09D7/12C09D5/00C09D7/61C09J7/29
CPCC08K3/20C08K3/22B32B2307/584C04B20/00B32B2307/554C09J7/0296B32B33/00C09D5/028C09J2205/102C09D7/1216C04B26/02C04B2111/00482C09D7/61C09J7/29C09J2301/408C04B14/30C04B20/0008
Inventor 刘奕燎蔡朝辉林裕卫吴耀根
Owner FSPG HI TECH
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