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Radiation refrigeration self-cleaning coating

A radiation cooling and self-cleaning technology, applied in the direction of reflective/signal coatings, conductive coatings, coatings, etc., can solve problems such as unsatisfactory long-term effects, decline in radiation cooling effects, dust pollution on the coating surface, etc., to achieve good self-cleaning Cleaning effect, long-term stable cooling effect

Active Publication Date: 2021-08-27
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some coatings with self-cleaning function have been developed on the market. However, the self-cleaning method cannot satisfy the long-term effect. After a long period of wind and rain, the surface of the coating is seriously polluted by dust, which leads to a decline in the effect of radiation cooling

Method used

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  • Radiation refrigeration self-cleaning coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] This example provides a high-performance radiative cooling self-cleaning coating, including the primer and top coat, and the raw materials are prepared according to the following ratio:

[0074] (1) Primer coating: 180Kg of water, 2Kg of thickener, 6Kg of defoamer, 16Kg of wetting and dispersing agent, 1Kg of pH regulator, 500Kg of radiant cooling filler, 30Kg of conductive powder, 250Kg of emulsion, and 15Kg of film-forming aid.

[0075] The thickener is associative polyurethane thickener: associative alkali-swellable thickener: hydroxyethyl cellulose ether at a ratio of 2:1:2.

[0076] Among them, the radiation cooling filler is titanium dioxide with high infrared reflectivity: the ratio of nano-alumina is 1:1.

[0077] Wherein the conductive powder is conductive titanium dioxide.

[0078] The emulsion is silicone acrylic emulsion.

[0079] Among them, the film-forming aid alcohol ester twelve: propylene glycol butyl ether: dipropylene glycol dimethyl ether is 8:4:3...

Embodiment 2

[0085] This example provides a high-performance radiative cooling self-cleaning coating, including the primer and top coat, and the raw materials are prepared according to the following ratio:

[0086] (1) Primer coating: 220Kg of water, 3Kg of thickener, 4Kg of defoamer, 12Kg of wetting and dispersing agent, 2Kg of pH regulator, 280Kg of radiant cooling filler, 49Kg of conductive powder, 320Kg of emulsion, 10Kg of film-forming aid, curing agent 100Kg.

[0087] Among them, the thickener is preferably an associative polyurethane thickener: water-based bentonite at a ratio of 3:2.

[0088] Among them, the radiation refrigeration filler nano-alumina: nano-zinc oxide: ceramic powder is 4:4:1.

[0089] Among them, the ratio of conductive powder conductive titanium dioxide: tin oxide powder is 6:1.

[0090] The emulsion is preferably a hydroxyl acrylic emulsion (hydroxyl value ≤ 100): the curing agent ratio is 3.2:1.

[0091] Alcohol ester twelve: propylene glycol diacetate: dipr...

Embodiment 3

[0097] This example provides a high-performance radiative cooling self-cleaning coating, including the primer and top coat, and the raw materials are prepared according to the following ratio:

[0098] (1) Primer coating: 280Kg of water, 5Kg of thickener, 3Kg of defoamer, 8Kg of wetting and dispersing agent, 3Kg of pH regulator, 200Kg of radiant cooling filler, 90Kg of conductive powder, 400Kg of emulsion, and 11Kg of film-forming aid.

[0099] Among them, the thickener is preferably an associative polyurethane thickener: water-based bentonite: associative alkali-swellable thickener at a ratio of 3:2:1.

[0100] Among them, the ratio of radiative cooling filler high infrared reflection titanium dioxide: ceramic powder is 8:1.

[0101] Among them, the conductive powder conductive titanium dioxide: conductive mica powder: tin oxide powder is 1:2:1.

[0102] The emulsion is an acrylic emulsion.

[0103] Alcohol ester twelve: propylene glycol butyl ether is 4:1.

[0104] (2) To...

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Abstract

The invention discloses a radiation refrigeration self-cleaning coating which comprises a prime coating and an upper coating. The prime coating comprises the following components in parts by weight: 180-280 parts of water; 2-5 parts of a thickening agent; 8-16 parts of a wetting dispersant; 1-3 parts of an alkaline pH regulator; 200-500 parts of radiation refrigeration pigment and filler; 30-100 parts of conductive powder; 250 -450 parts of an emulsion; and 10-20 parts of a coalescing agent. The upper coating comprises the following components in parts by weight: 250-450 parts of water; 2-5 parts of a thickening agent; 8-16 parts of a wetting dispersant; 100 -300 parts of a photocatalytic filler; 20-100 parts of conductive powder; 100-300 parts of a hydrophilic material; and 100-200 parts of a coalescing agent.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to radiation cooling self-cleaning coatings. Background technique [0002] The main function of exterior wall coatings is to decorate and protect the walls of buildings, so that the appearance of buildings is neat and beautiful, so as to achieve the purpose of beautifying the urban environment, and at the same time, it can protect the exterior walls of buildings and prolong their service life. However, since exterior wall coatings are exposed to the atmospheric environment for a long time and are affected by dust, rain, snow, and sunlight in the atmosphere, exterior wall coatings have high performance requirements during use, such as self-cleaning performance and refrigeration performance. [0003] Some coatings with self-cleaning function have been developed on the market. However, the self-cleaning method cannot satisfy the long-term effect. After a period of wind and rain, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/61C09D5/33C09D1/00C09D5/24C09D7/62
CPCC09D133/04C09D143/04C09D7/61C09D5/004C09D1/00C09D5/24C09D7/62C08K2003/2241C08K2003/2227C08K2201/011C08K2201/001C08K2003/2296C08K2003/2231C08K13/02C08K3/22C08K3/00
Inventor 杨荣贵万容兵万亚飞
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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