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Building radiation cooling coating structure and manufacturing method thereof

A building and coating technology, applied in building components, coatings, reflective/signal coatings, etc., can solve the problems of low sunlight reflectivity, high internal temperature of buildings, high absorption rate, etc., to achieve simple operation and effect. Significant, easy-to-implement effects

Pending Publication Date: 2022-07-08
CHONGQING JIAOTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a building radiation cooling coating structure and its manufacturing method, so as to alleviate the technical problem of high internal temperature of the building caused by the low reflectivity and high absorption rate of the building to sunlight

Method used

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  • Building radiation cooling coating structure and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0061] The following is the laboratory experiment process, which mainly includes the preparation and implementation process of the coupling agent layer, the preparation and implementation process of the solar spectral radiation total reflection layer, and the preparation and implementation process of the infrared emission layer.

[0062] (1) Preparation and implementation process of coupling agent layer:

[0063] ① Preparation of coupling agent layer:

[0064] 20 ml of hydrolysis catalyst acetic acid was added to the flask, followed by adding 100 ml of deionized water to the flask, and stirring at 25°C, 300 rmp for 10 min. After thorough stirring, KH570 silane with a mass of 60 g, and 30 ml of isopropanol were added until the solution became transparent. Then slowly add 500ml of deionized water to prepare a dilute solution of silane coupling agent.

[0065] ② Implementation of the coupling agent layer:

[0066] First clean the tested aluminum plate and the inside of the foa...

Embodiment 2

[0079]The following is the laboratory experiment process, which mainly includes the preparation and implementation process of the coupling agent layer, the preparation and implementation process of the solar spectral radiation total reflection layer, and the preparation and implementation process of the infrared emission layer.

[0080] (1) Preparation and implementation process of coupling agent layer:

[0081] ① Preparation of coupling agent layer:

[0082] 5 ml of deionized water was added to the flask, followed by 100 ml of absolute ethanol, and stirred for 2 min at 300 rmp at a temperature of 25°C. After fully stirring, KH570 silane with a mass of 20 g was added, and the mixture was stirred at 300 rmp for 10 min to prepare a dilute solution of silane coupling agent.

[0083] ② Implementation of the coupling agent layer:

[0084] First clean the tested aluminum plate and the inside of the foam box, dry at 25°C for 10 minutes, spray a layer of coupling agent on the clean ...

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Abstract

The invention discloses a building radiation cooling coating structure which covers the outer surface of a building and comprises a coupling agent layer, a solar spectrum radiation total reflection layer and an infrared emission layer from inside to outside. In particular to an infrared emission layer containing a polydimethylsilane and polymethyl methacrylate composite cooling material, which not only ensures a radiation cooling function, but also ensures the mechanical stability of a formed film. Sunlight is reflected through the solar spectrum radiation total reflection layer, absorption of energy in the sunlight is reduced, heat of a building is radiated outwards through the infrared emission layer, radiation absorption of sunlight in the daytime is reduced, meanwhile, release of infrared radiation with the wavelength of 8-13 micrometers at night is enhanced, and therefore the overall temperature of the building is reduced.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a building radiation cooling coating structure and a manufacturing method thereof. Background technique [0002] With the rapid development of urban construction, the urban heat island effect has become more and more obvious. The urban heat island effect is mainly affected by the following factors: reduction of evaporation, reduction of reflectivity of urban underlying surface, energy input, etc. Among them, the low reflectivity of the underlying surface of the city has a great influence on the temperature rise of the whole city, and is the most important factor. [0003] There are a large number of artificial structures in the city, such as concrete, asphalt pavement, various building walls, etc., which change the thermal properties of the underlying surface. These artificial structures absorb heat quickly and have a small heat capacity. Under the same solar radiation conditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/33C09D133/12C09D183/04E04B1/76
CPCC09D5/004C09D133/12E04B1/762E04B2001/7691C08K2003/2241C08K2003/265C08K2003/0806C08K2003/0812C08L83/04C08L27/14C08K3/22C08K3/26C08K3/34C08K3/08Y02A30/60
Inventor 廖棱刘水康周建庭曹志祥张洪刘福茂陈荣建王红强周凯强武立超
Owner CHONGQING JIAOTONG UNIVERSITY
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