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Long-acting, heat-insulating and cooling paint used for energy-saving building and preparation method thereof

A technology for thermal insulation and cooling, construction, applied in reflective/signal coatings, polyurea/polyurethane coatings, coatings, etc. The effect of prolonging service life, avoiding external leakage and improving indoor comfort

Active Publication Date: 2019-11-19
沈华初
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, when the widely used directly dispersed high-reflective infrared blocking nano-powder is used to prepare heat-insulating and cooling coatings, there is a problem that it is easy to lose outward, thereby weakening the heat-insulating and cooling effect and shortening the service life of the coating.

Method used

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  • Long-acting, heat-insulating and cooling paint used for energy-saving building and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Disperse the high-reflective infrared blocking nano-powder in the mixed solution of ethanol and dispersant, mix it with a high-speed disperser, grind it at a speed of 360r / min for 70min, and disperse it with an ultrasonic frequency of 35kHz for 60min. Slurry, then add porous inorganic carrier particles and surfactants to the slurry, continue to ultrasonically disperse for 50 minutes to form a uniform mixing system, then add inorganic hydrogel, continue to ultrasonically disperse at 50°C for 30 minutes, then let stand for 7 hours, evaporate Remove the solvent, grind into a fine powder, disperse in the emulsion, and spray granulate to obtain composite high-reflection infrared-blocking particles; each raw material component is, by weight, 16 parts of high-reflection infrared-blocking nano-powder, 34 parts of ethanol, 0.7 parts of dispersant, 23 parts of porous inorganic carrier particles, 1.6 parts of surfactant, 8 parts of inorganic hydrogel, 38 parts of emulsion;

[...

Embodiment 2

[0032] (1) Disperse the high-reflective infrared blocking nano-powder in the mixed solution of ethanol and dispersant, mix it with a high-speed disperser, then grind it at a speed of 320r / min for 70min, and disperse it with an ultrasonic frequency of 35kHz for 60min. Slurry, then add porous inorganic carrier particles and surfactants to the slurry, continue to ultrasonically disperse for 40 minutes to form a uniform mixing system, then add inorganic hydrogel, continue to ultrasonically disperse at 40°C for 40 minutes, then let stand for 6 hours, evaporate Remove the solvent, grind into a fine powder, disperse in the emulsion, and spray granulate to obtain composite high-reflection infrared-blocking particles; each raw material component is, by weight, 12 parts of high-reflection infrared-blocking nano-powder, 33 parts of ethanol, 0.6 parts of dispersant, 18 parts of porous inorganic carrier particles, 1.2 parts of surfactant, 7 parts of inorganic hydrogel, 45 parts of emulsion;...

Embodiment 3

[0037] (1) Disperse the high-reflective infrared blocking nano-powder in the mixed solution of ethanol and dispersant, mix it with a high-speed disperser, grind it at a speed of 380r / min for 60min, and disperse it with an ultrasonic frequency of 45kHz for 50min. Slurry, then add porous inorganic carrier particles and surfactants to the slurry, continue to ultrasonically disperse for 50 minutes to form a uniform mixing system, then add inorganic hydrogel, continue to ultrasonically disperse at 50°C for 30 minutes, then let stand for 8 hours, evaporate Remove the solvent, grind into a fine powder, disperse in the emulsion, and spray granulate to obtain composite high-reflection infrared-blocking particles; each raw material component is, by weight, 18 parts of high-reflection infrared-blocking nano-powder, 37 parts of ethanol, 0.8 parts of dispersant, 26 parts of porous inorganic carrier particles, 1.8 parts of surfactant, 9 parts of inorganic hydrogel, 35 parts of emulsion;

[...

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Abstract

The invention relates to the field of building coatings, and discloses a long-acting, heat-insulating and cooling coating used for an energy-saving building and a preparation method thereof. The long-acting, heat-insulating and cooling coating is prepared through the following preparation process: (1) mixing a highly-reflective infrared-blocking nanometer powder, ethanol, a dispersant, porous inorganic carrier particles, a surfactant and an inorganic hydrogel, then removing a solvent, carrying out grinding to form a powder, dispersing the powder into an emulsion, and carrying out spraying granulation so as to obtain composite highly-reflective infrared-blocking particles; and (2) uniformly mixing and dispersing the composite highly-reflective infrared-blocking particles with acrylic acid modified organosilicone resin, waterborne polyurethane resin, an anti-foaming agent, a leveling agent and water so as to prepare the long-acting, heat-insulating and cooling coating used for the energy-saving buildingt. The heat-insulating and cooling coating prepared by using the preparation method provided by the invention can effectively avoid a heat-insulating functional filling material from losing to the outside, and has good sunshading properties, so long-acting, heat-insulating and cooling effects are achieved; the service life of a coating is prolonged; indoor comfort is improved; andthe energy-saving demand of a conventional building can be met.

Description

technical field [0001] The invention relates to the field of architectural coatings, and discloses a long-acting heat-insulating and cooling coating for energy-saving buildings and a preparation method thereof. Background technique [0002] There are many ways to cool down buildings, such as heat insulation layer, metal coating and cooling coatings. Among them, coatings are more and more popular because of their advantages such as economy, ease of use and good heat insulation effect. The so-called cooling coating is a special functional coating that has been rapidly developed in the civil field in recent years. It mainly reduces the radiation temperature in the building by increasing the infrared emissivity and reflectivity of the coating surface, reducing the energy consumption of air conditioners and saving energy. energy purpose. [0003] Existing heat insulation and cooling coatings are mainly modified by adding highly reflective infrared blocking nano-powders to the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D175/04C09D5/33
CPCC08K2003/2227C08K2003/2241C08K2201/011C08L2205/025C08L2205/035C09D5/004C09D175/04C09D183/06C08L75/04C08L71/02C08L23/0853C08L9/08C08K9/12C08K9/10C08K3/34C08K7/26C08K7/28C08K3/22C08K13/06C08L83/06C08L63/00
Inventor 沈华初
Owner 沈华初
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