Infrared radiation coating and preparation method thereof

An infrared radiation coating and coating technology, applied in the field of coatings, can solve the problems of complex manufacturing process of infrared radiation coatings, influence on construction and use, and easy failure of dispersants, etc., and achieve optimal suspension, low cost, and improved radiation performance and lifespan. Effect

Inactive Publication Date: 2013-03-27
唐山晟科陶瓷制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manufacturing process of nano-scale infrared radiation coatings is complicated and the cost is high.
[0003] At present, commercially available paints often add organic dispersants (such as CMC, etc.) to ensure the suspension and uniformity of the paint. During the storage of the paint, the dispersant is prone to failure and causes the paint to agglomerate, affecting construction and use.
At the same time, domestic coatings often use separate binders, such as water glass, silica sol, aluminum dihydrogen phosphate, etc., with low service temperature and poor bonding strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: The infrared radiation coating is made by putting solid material and liquid material in a high-efficiency grinding mixer at a weight ratio of 1:1, and mixing and stirring for 4 hours. In the obtained paint, the particle size of 43% by weight of the paint component is 100 nanometers to 500 nanometers, and the particle size of the 57% by weight component is 500 nanometers to 2 microns.

[0022] The weight percentage of each component in the solid material is: blackening agent 53%, zircon sand 37%, and alumina 10%. Wherein, the weight percentages of the components in the blackening agent are: iron oxide 5%, copper oxide 3%, manganese oxide 27%, cobalt oxide 9%, nickel oxide 11%, chromium oxide 18%, silicon carbide 27% .

[0023] The weight percentage of each component in the liquid material is 8% frit, 3% nano alumina powder, 28% silica sol, and the rest is water. The expansion coefficient of the frit is 6.75×10-6 / °C, and it is prepared by the following method: 94....

Embodiment 2

[0024] Example 2: The infrared radiation coating is made by putting solid material and liquid material into a high-efficiency grinding mixer at a weight ratio of 1:1, and mixing and stirring for 4 hours. In the obtained paint, the particle size of 43% by weight of the paint component is 100 nanometers to 500 nanometers, and the particle size of the 57% by weight component is 500 nanometers to 2 microns.

[0025] The weight percentage of each component in the solid material is: blackening agent 68%, zircon sand 26%, and alumina 6%; wherein, the weight percentage of each component in the blackening agent is: iron oxide 11%, Copper oxide 10%, manganese oxide 23%, cobalt oxide 1.5%, nickel oxide 8.5%, chromium oxide 9%, silicon carbide 37%.

[0026] The weight percentage of each component in the liquid material is: 2% frit, 4% nano alumina powder, 35% silica sol, and the rest is water; wherein, the frit is the same as the frit in Example 1.

Embodiment 3

[0027] Example 3: This infrared radiation coating is to put the solid material and the liquid material in a high-efficiency grinding mixer at a weight ratio of 1:1, grind and stir until the particle size of each component is between 100 nanometers and 2 micrometers to obtain the coating.

[0028] The weight percentage of each component in the solid material is: blackening agent 62%, zircon sand 35%, and alumina 3%; wherein, the weight percentage of each component in the blackening agent is: iron oxide 13%, Copper oxide 9%, manganese oxide 18%, cobalt oxide 8%, nickel oxide 4%, chromium oxide 15%, silicon carbide 33%.

[0029] The weight percentage of each component in the liquid material is: 5% frit, 9% nano alumina powder, 20% silica sol, and the rest is water; wherein, the frit is the same as the frit in Example 1.

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Abstract

The invention discloses an infrared radiation coating. The infrared radiation coating is formed by mixing a solid material with a liquid material based on a weight ratio of 1:1, wherein grain sizes of the components of the coating are from 100 nanometers to 2 microns; the liquid material is an adhesion agent; and the solid material comprises the following components in percentage by weight: 45-75 percent of blackening agent, 20-45 percent of zircon sand and 0-15 percent of aluminum oxide. The grains sizes of the principal components of the coating are from 100 nanometers to 2 microns, so that the radiation property of the coating is improved and the service life of the coating is prolonged. The radiance (Epsilon) of the coating is higher at a high temperature of 1,000-1,400 DEG C and can reach more than 0.9; and even at the temperature of 1500 DEG C, the stable radiation still can be maintained and the normal total emissivity of the coating still can reach 0.87; meanwhile, the infrared radiation coating can be applied to different heating types of kilns.

Description

Technical field [0001] The invention relates to a coating, especially an infrared radiation coating. Background technique [0002] In recent years, infrared radiation coatings have been developed towards ultra-fineness. Theoretical studies have shown that the nanometerization of high-emissivity energy-saving coatings can further increase the emissivity and absorption rate of the coatings, thereby bringing more significant energy-saving effects. At the same time, the adhesion of ultrafine particles on the substrate is extremely strong, and even some ultrafine particles can penetrate into the substrate material, which completely changes and strengthens the surface performance of the substrate material, and can completely eliminate the coating peeling and use effect Phenomenon such as falling, even in extreme cold and hot conditions, there will be no cracking and peeling on the surface. For example, the main components of the infrared radiation coatings of CRC in the United Kingdom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 王福徐锦标郭金砚邹艺峰刘得顺王京甫杨连弟
Owner 唐山晟科陶瓷制品有限公司
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