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Inorganic cooling coating and preparation method thereof

A coating and inorganic technology, which is applied in the field of cooling coating and its preparation, can solve the problems of thick coating blocking sunlight, large particle size, and low light scattering efficiency, and achieve high cost performance, high refractive index, and low light absorption coefficient. Effect

Inactive Publication Date: 2020-11-03
绍兴百立盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large particle size, the light scattering efficiency is low, and a thick coating is required to effectively block sunlight

Method used

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  • Inorganic cooling coating and preparation method thereof
  • Inorganic cooling coating and preparation method thereof
  • Inorganic cooling coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 50g of magnesia (Wuxi Zehui), 5g of zirconia (Oriental Zirconium Industry), 5g of barium sulfate (Guangdong Xinmei) into 50g of deionized water at room temperature of 25°C, stir at high speed for 1h until uniform dispersion. Then add 5 g of magnesium sulfate (Hunan Tancheng), stir for 20 minutes, and filter through a 400-mesh filter to obtain an inorganic heat-reflective coating. The coating was scraped on a smooth aluminum plate to form a 1000 μm thick inorganic heat-reflective emitting material.

Embodiment 2

[0034] Add 40g of magnesia (Wuxi Zehui), 5g of zirconia (Oriental Zirconia), 15g of zinc oxide (Wuxi Zehui), and 5g of methyltriethoxysilane (Hubei New Sihai) to 30g of In deionized water, stir at high speed for 1h until the dispersion is uniform. Add 10 g of zinc sulfate (Hunan Tancheng), stir for 20 minutes, and filter through a 400-mesh filter to obtain an inorganic heat-reflective coating. The paint was scraped on a smooth aluminum plate to form a 1000 μm thick inorganic heat-reflecting hair material (ie, an inorganic cooling coating).

Embodiment 3

[0036] At room temperature of 25°C, 70g magnesium oxide (Wuxi Zehui), 5g antimony trioxide (Shaanxing Antimony Industry), 5g barium sulfate (Guangdong Xinmei), 5g alumina (Shandong Aluminum Industry), 3g sodium methyl silicate (Hubei Xinsihai) was added to 80g of deionized water, stirred at high speed for 2 hours until uniformly dispersed. Then add 5 g of magnesium sulfate (Hunan Tancheng), stir for 20 minutes, and filter through a 400-mesh filter to obtain an inorganic heat-reflective coating. The paint was scraped on a smooth aluminum plate to form a 1000 μm thick inorganic heat-reflecting hair material (ie, an inorganic cooling coating).

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Abstract

The invention discloses an inorganic cooling coating and a preparation method thereof. The coating is prepared from the following raw materials in parts by weight: 40-70 parts of magnesium oxide; 5-20parts of an additive; 0-30 parts of a filler; 0-5 parts of pigment; 0-5 parts of a modifier; and 30-80 parts of deionized water. The preparation method comprises the following steps: adding the filler, the pigment, the modifier and the magnesium oxide into the deionized water, mixing the components, adding the additive, continuously mixing the components, and forming the inorganic cooling coatingon the surfaces of cement, wood, stone and the like through spraying, brush coating or roller coating. The inorganic heat reflecting material takes magnesium oxide as a cementing material, which forms strong light scattering and infrared radiation together with functional filler. The inorganic heat reflection material is wide in raw material source, high in cost performance and simple in preparation process, has the sunlight reflectivity as high as 96% and the hemispherical emissivity as high as 0.94, and can be used for heat insulation and cooling of occasions such as buildings and industries.

Description

technical field [0001] The invention relates to the field of cooling coating and its preparation method, in particular to an inorganic cooling coating and its preparation method. Background technique [0002] With the intensification of energy consumption, the massive emission of carbon dioxide and other greenhouse gases has caused the rise of global temperature and caused a series of hazards, including the disappearance of glaciers, the rise of sea level, and the extinction of species. It has become a global consensus to improve energy efficiency and reduce carbon emissions. Radiative cooling is a passive cooling process that consumes no electrical energy and radiates waste heat into the deep universe in the form of infrared emissions (wavelength range 8-13 μm) through an atmospheric transmission window. The radiation cooling surface with selective wavelength can cool the objects attached to the surface below the ambient temperature if the surface has no or little absorpti...

Claims

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Application Information

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IPC IPC(8): C04B28/30C04B28/32C04B28/34C04B111/27C04B111/80
CPCC04B28/30C04B28/32C04B28/342C04B2111/00508C04B2111/00525C04B2111/27C04B2111/80C04B14/304C04B14/306C04B14/368C04B22/142C04B14/30C04B24/42C04B14/303
Inventor 徐意王鹏飞金伟伟董晓贇
Owner 绍兴百立盛新材料科技有限公司
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