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High-temperature-resistance and heat-insulation coating and production method thereof

A technology of thermal insulation coating and manufacturing method, applied in the field of high temperature heat insulation, can solve the problems of poor thermal stability, complex influencing factors, easy deformation under heat, etc., to achieve high temperature dimensional stability, ensure mechanical properties, small size The effect of molding shrinkage

Inactive Publication Date: 2011-04-27
武汉阜成科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, heat insulation and heat insulation refractory materials using existing high temperature resistant heat insulation coatings still have problems such as poor heat resistance stability and easy deformation when heated.
[0005] Dimensional stability at high temperature is a problem that cannot be solved well for most thermal insulation and refractory materials using high temperature-resistant thermal insulation coatings. The influencing factors are complex and unpredictable

Method used

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  • High-temperature-resistance and heat-insulation coating and production method thereof

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Effect test

Embodiment 1

[0034] Embodiment 1: A kind of heat-resistant and heat-insulating coating, its finished product comprises following composition and the content of parts by weight: 55 parts of inorganic high-temperature refractory cement, SiO 2 7 parts of airgel, 6 parts of potassium hexatitanate whisker, 3 parts of flake mica or flake metal, 90-120 parts of acetone or absolute ethanol.

[0035] Specifically, when the thickness of the flake mica or flake metal is 0.5 micron and the flake diameter is less than 0.2mm, the performance of the high temperature resistant heat insulation coating is better. For the sheet metal, metal materials with higher melting points such as copper and iron can be selected.

[0036] Specifically, the SiO 2 The airgel can be selected from airgel particles with a particle size between 60 mesh and 80 mesh.

[0037] Specifically, SiO 2 Airgel particles can also be made of airgel particles with a particle size between 60 mesh and 80 mesh, airgel particles with a part...

Embodiment 2

[0041] Embodiment 2: A kind of heat-resistant and heat-insulating coating, its finished product comprises following composition and content in parts by weight: 68 parts of inorganic high-temperature refractory cement, SiO 2 6 parts of airgel, 6 parts of potassium hexatitanate whisker, 4 parts of flake mica or flake metal, 90-120 parts of acetone or absolute ethanol.

[0042] Specifically, when the thickness of the flake mica or flake metal is 3 microns and the flake diameter is less than 0.2 mm, the performance of the high temperature resistant and heat insulating coating is better.

[0043] Specifically, the SiO 2 The airgel can be selected from airgel particles with a particle size between 60 mesh and 80 mesh.

[0044] Specifically, SiO 2 Airgel particles can also be made of airgel particles with a particle size between 60 mesh and 80 mesh, airgel particles with a particle size between 80 mesh and 100 mesh, and airgel particles with a particle size between 100 mesh and 200...

Embodiment 3

[0048] Embodiment 3: A kind of heat-resistant and heat-insulating coating, its finished product comprises the following composition and the content of parts by weight: 80 parts of inorganic high-temperature refractory cement, SiO 2 5 parts of airgel, 5 parts of potassium hexatitanate whisker, 5 parts of flake mica or flake metal, 90-120 parts of acetone or absolute ethanol.

[0049] Specifically, when the thickness of flake mica or flake metal is 10 microns and the flake diameter is less than 0.2 mm, the performance of the high temperature resistant and heat insulating coating is better.

[0050] Specifically, the SiO 2 The airgel can be selected from airgel particles with a particle size between 60 mesh and 80 mesh.

[0051] Specifically, SiO 2 Airgel particles can also be made of airgel particles with a particle size between 60 mesh and 80 mesh, airgel particles with a particle size between 80 mesh and 100 mesh, and airgel particles with a particle size between 100 mesh an...

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Abstract

The invention relates to the field of high temperature resistance and heat insulation, in particular to a high-temperature-resistance and heat-insulation coating and the production method thereof. The finished product of the coating comprises the following components: 55 to 80 weight parts of inorganic high-temperature refractory adhesive mortar, 5 to 7 weight parts of SiO2 aerogel, 5 to 7 weight parts of hexapotassium titanate whisker, 3 to 5 weight parts of lamellar mica or lamellar metal and 90 to 120 weight parts of acetone or absolute alcohol. The production method comprises the following steps: a) firstly, screening the SiO2 aerogel containing grains with appropriate size, and pouring the appropriate amount of the acetone or the absolute alcohol into the SiO2 aerogel and fully stirring, wherein the contents of the SiO2 aerogel and the acetone or the absolute alcohol are 5 to 7 weight parts of the SiO2 aerogel and 90 to 120 weight parts of the acetone or the absolute alcohol; and b) adding 3 to 5 weight parts of the lamellar mica or 3 to 5 weight parts of the lamellar metal, 55 to 80 weight parts of the inorganic high-temperature refractory adhesive mortar and 5 to 7 weight parts of the hexapotassium titanate whisker to the mixture prepared in the step a), and fully stirring so as to prepare the high-temperature-resistance and heat-insulation coating. The production method is simple and easy to operate. The high-temperature-resistance and heat-insulation material obtained by using the method has the advantages of good heat insulation effect, high strength and wide prospect on the application.

Description

technical field [0001] The invention relates to the field of high temperature resistance and heat insulation, in particular to a high temperature resistance heat insulation coating and a manufacturing method thereof. technical background [0002] Traditional thermal insulation refractory materials improve thermal insulation performance by increasing the gas phase ratio and reducing the thermal conductivity at room temperature to be infinitely close to the thermal conductivity of air. When used at high temperatures, the heat exchange caused by convection is so small that it can be ignored, and conduction and radiation become The main heat exchange method, at this time, no matter how the gas phase ratio is increased, it is difficult to have an effective impact on the high temperature thermal conductivity. No matter what form of traditional thermal insulation refractory materials, the fatal problem is that its thermal conductivity increases with the increase of temperature and ...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 李柏松王宇光
Owner 武汉阜成科技股份有限公司
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