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Waterborne glass thermal-insulation coating and preparation method thereof

A heat-insulating coating and heat-insulating filler technology, applied in coatings and other directions, can solve problems such as poor infrared radiation rate, unstable performance, and single color, and achieve stable chemical properties, good heat insulation effect, and low thermal conductivity.

Inactive Publication Date: 2017-11-07
合肥泓定科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although water-based glass heat-insulating coatings have been studied a lot, there are still many problems in practical applications, such as: unstable performance, although the reflective heat-insulating coatings reported in patent 200510028388. Single, mainly white or light-colored paint, with relatively large limitations, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of modified expanded perlite is:

[0021] Add expanded perlite to water containing 2wt% sodium lauryl sulfate, then add dropwise 150g / L indium trichloride solution and 60g / L zirconium oxychloride alcohol aqueous solution, stir evenly, add ammonium bicarbonate, and ultrasonically disperse Finally, precipitation is carried out, and after the precipitation is completed, water washing is carried out, and then high-temperature calcination is carried out at 600°C to 800°C to obtain modified expanded perlite. The solvent in the aqueous alcohol solution is 70% by volume of ethanol and 30% by volume of water.

Embodiment 2

[0023] The preparation method of modified expanded perlite is:

[0024] Add expanded perlite to water containing 1wt% sodium stearate, then dropwise add 100g / L indium trichloride solution and 80g / L zirconium oxychloride alcohol aqueous solution, stir evenly, add ammonium bicarbonate, perform ultrasonic dispersion treatment Precipitate, wash with water after precipitation, and then perform high-temperature calcination at 600°C to 800°C to obtain modified expanded perlite. The solvent in the aqueous alcohol solution is 50% by volume of ethanol and 50% by volume of water.

Embodiment 3

[0026] A water-based glass heat-insulating coating, calculated in parts by weight, comprises the following components:

[0027] 80 parts of the mixture of acrylic acid emulsion and silica sol, 15 parts of fluorocarbon resin, 10 parts of nano airgel, 10 parts of modified expanded perlite of embodiment 1, 2 parts of ammonium acrylate dispersant, 0.8 parts of tetrachloroisophthalonitrile 6 parts, 6 parts of modified ammonium polyacrylate, 2 parts of mineral oil, 9 parts of propylene glycol ethyl ether and 50 parts of deionized water.

[0028] Preparation:

[0029] 1) Add ammonium acrylate dispersant, tetrachloroisophthalonitrile, and 1 / 2 mineral oil into deionized water according to the formula amount, and stir and mix thoroughly at a speed of 300r / min;

[0030] 2) Add nano airgel, fluorocarbon resin and the modified expanded perlite of embodiment 1 to the mixture of step 1) and disperse at a rotating speed of 1000r / min;

[0031] 3) Add the mixture of acrylic acid emulsion and ...

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Abstract

The invention discloses a waterborne glass thermal-insulation coating and a preparation method thereof. The waterborne glass thermal-insulation coating contains the following components in parts by weight: 70-90 parts of epoxy modified organic silicon resin, 10-20 parts of fluorocarbon resin, 5-15 parts of nano-aerogel, 5-15 parts of a thermal-insulation filling, 1-3 parts of a wetting dispersant, 0.5-1 part of a mildew preventive, 4-8 parts of a thickening agent, 1-3 parts of a defoaming agent, 6-12 parts of a film forming aid and 40-60 parts of deionized water, wherein the thermal-insulation filling is modified expanded perlite, and the modified expanded perlite is mainly prepared from expanded perlite, indium trichloride and zirconium oxychloride. The waterborne glass thermal-insulation coating is relatively high in reflectivity and emissivity and low in heat conductivity coefficient, has a good thermal insulation effect and can be applied to indoor thermal insulation.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based glass heat-insulating coating and a preparation method thereof. Background technique [0002] Water-based glass thermal insulation coating is a new type of functional architectural coating that has been applied and paid attention to in recent years. In the hot summer and warm winter and hot summer and cold winter climate regions where the summer temperature is too high in our country, the coating not only has the decorative effect of ordinary exterior wall coatings, but also can reflect solar radiant heat to reduce the surface temperature of the coating film, and reduce the damage caused by summer coating. A series of problems caused by the high surface temperature of the membrane. Although water-based glass heat-insulating coatings have been studied a lot, there are still many problems in practical applications, such as: unstable performance, although...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D127/12C09D7/12
CPCC09D183/04C08L2201/08C08L2205/035C08L27/12C08K13/06C08K9/10C08K7/26
Inventor 汪琦汪泽维
Owner 合肥泓定科技有限公司
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