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Intelligent temperature controlling coating with oriented structure and preparation method thereof

An intelligent temperature control and coating technology, which is applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of disorderly arrangement of particles, poor intelligent adjustment performance, and high coating haze, so as to facilitate large-scale operation and control performance Improvement, high transparency effect

Inactive Publication Date: 2015-04-22
佛山金智节能膜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to propose an intelligent temperature control coating with a directional structure, which overcomes the defects of the uniformly dispersed vanadium dioxide coating in the prior art due to the chaotic arrangement of particles, and solves the haze of the coating High and low transparency, poor intelligent adjustment performance

Method used

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  • Intelligent temperature controlling coating with oriented structure and preparation method thereof
  • Intelligent temperature controlling coating with oriented structure and preparation method thereof
  • Intelligent temperature controlling coating with oriented structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Preparation of vanadium dioxide powder slurry:

[0035] Take the mass of each component as follows:

[0036] Vanadium dioxide nanopowder (doped with tungsten, particle size 20-100nm), 10g

[0037] Deionized water (dispersion medium), 89.5g

[0038] Modified acrylic dispersant, 0.5g

[0039] Add the organically modified nano-powder into deionized water and stir it at high speed for 10 minutes, then add a dispersant and ultrasonically disperse it for 30 minutes, and stir it on a high-speed mixer for 1 hour to obtain a vanadium dioxide mixed powder slurry;

[0040] (2) Preparation of vanadium dioxide intelligent temperature control coating 1

[0041] The mass percentages of each raw material are:

[0042] Polymer resin (water-based acrylic resin): 40%

[0043] The vanadium dioxide composite powder slurry (solid content 10%) that present embodiment makes: 50%

[0044] Deionized water: 9%

[0045] Polyvinylpyrrolidone (alignment agent): 1%

[0046] Add water-base...

Embodiment 2

[0048] (1) Preparation of vanadium dioxide composite powder slurry:

[0049] Take the mass of each component as follows:

[0050] Vanadium dioxide nanopowder (without doping, particle size 20-60nm), 5g

[0051] Ethyl acetate (dispersion medium), 94.5g

[0052] Polyurethane dispersant, 0.05g

[0053] Add the nano-powder to ethyl acetate for high-speed stirring for pre-dispersion for 10 minutes, then add a dispersant to ultrasonically disperse for 30 minutes, and stir on a high-speed mixer for 1 hour to obtain a vanadium dioxide powder slurry;

[0054] The main properties of the vanadium dioxide composite powder slurry obtained in the present embodiment are shown in Table 1;

[0055] (2) Preparation of vanadium dioxide intelligent temperature control coating 2

[0056] The mass percentages of each raw material are:

[0057] Polyacrylic resin: 40%

[0058] The obtained vanadium dioxide powder slurry (solid content 5%) that the present embodiment makes: 40%

[0059] Ethyl a...

Embodiment 3

[0063] (1) Preparation of vanadium dioxide composite powder slurry:

[0064] Take the mass of each component as follows:

[0065] Vanadium dioxide nanopowder (doped with tungsten, particle size 20-100nm), 15g

[0066] Butanone, 73g

[0067] Modified polyester dispersant, 2g

[0068] Add the nano-powder to methyl ethyl ketone and stir at high speed for pre-dispersion for 5 minutes, then add a dispersant to ultrasonically disperse for 20 minutes, and stir on a high-speed mixer for 1 hour to obtain a vanadium dioxide powder slurry;

[0069] (2) Preparation of vanadium dioxide intelligent temperature control coating 3

[0070] The mass percentages of each raw material are:

[0071] Polyurethane resin: 35%

[0072] The vanadium dioxide powder slurry (solid content 15%) that the present embodiment makes: 45%

[0073] Butanone: 19%

[0074] Cellulose acetate butyrate: 1%

[0075] Add polyurethane resin and butanone into the vanadium dioxide powder slurry, and stir at a high s...

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Abstract

The invention discloses an intelligent temperature controlling coating with an oriented structure. The intelligent temperature controlling coating is formed by mixing a vanadium dioxide composite powder sizing agent, coating resin, a solvent and an orientational agent and coating a substrate with the mixture. The vanadium dioxide composite powder sizing agent comprises vanadium dioxide composite powder, a dispersing agent and a dispersion medium, wherein the vanadium dioxide composite powder comprises vanadium dioxide nano powder with chemical constitution of V1-xMx O2, wherein the M is an alloying element, 0< / =x< / =0.5. By a suitable orientational agent being used by the intelligent temperature controlling coating, the vanadium dioxide nano powder can be directionally aligned in the coating, and the performance of nano-material can be really played. Due to the directional alignment of the vanadium dioxide nano powder, the visible light transmittance, transparency and intelligent adjustment performance of the coating can be improved; the haze of the coating can be reduced, ultraviolet light can almost be shielded completely, and infrared ray with higher energy in the sunlight can be intelligently adjusted.

Description

technical field [0001] The invention relates to the field of material coatings, in particular to an intelligent temperature-control coating with a directional structure, and also relates to a preparation method for an intelligent temperature-control coating with a directional structure. Background technique [0002] Vanadium dioxide material has a first-order phase transition characteristic, which can sense changes in ambient temperature and respond intelligently to this change to achieve selective transmission or shielding of sunlight. Usually when the ambient temperature is lower than the phase transition temperature, the film or coating containing vanadium dioxide is almost completely transparent to visible light and mid-infrared light in sunlight; when the temperature exceeds the semiconductor-metal phase transition temperature of vanadium dioxide At this time, the vanadium dioxide undergoes a phase change and transforms into an R phase. At this time, the material can se...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D175/04C09D7/12C09D5/00C08J7/04C08L67/02
CPCC09D133/00C08K2201/011C08L2205/03C09D7/61C09D7/65C09D7/67C09D7/68C09D175/04C08L39/06C08K3/22C08K2003/0887C08L1/14C08L75/04
Inventor 刘奕燎李永鸿吴耀根陈广建
Owner 佛山金智节能膜有限公司
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