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Heat reflective coating and its preparation method and application

A technology of heat reflection and reflective pigments, applied in reflective/signal coatings, coatings, climate change adaptation, etc., can solve the problems of environmental pollution of heat reflective coatings, deterioration of heat island effect, reduction of cooling effect, etc., to alleviate urban heat island effect, improved stain resistance, low polarizability

Active Publication Date: 2016-04-20
唐伯明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inventors of the present application have carried out in-depth research on the problems of the urban heat island effect caused by the high temperature of the asphalt pavement in summer, the environmental pollution caused by the preparation and use of the existing heat-reflective coatings, and the coatings being polluted by pollutants and causing the cooling effect to decrease. research, thereby completing the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0083] According to another specific embodiment of the present invention, the preparation method of heat reflective coating comprises the following steps:

[0084] Weigh the reflective pigment, 1∕10~1∕5 distilled water, 1∕10~9∕10 dispersant, 1∕5~1∕3 wetting agent according to the above weight parts, pour into the mortar and stir, and grind evenly to obtain mixture 1;

[0085] Weigh the filler and matting agent, 1∕5~4∕5 distilled water, the remaining dispersant and wetting agent according to the above parts by weight, pour into a mortar and stir, and grind evenly to obtain the mixture 2;

[0086] Weigh the film-forming aid, thickener, and remaining distilled water according to the above parts by weight, pour into a mortar and disperse evenly, add fluorine-containing (meth)acrylate polymer emulsion, and continue to disperse evenly to obtain mixture 3;

[0087] Mix and stir the mixtures 1, 2 and 3 and the crosslinking agent evenly to obtain the heat reflective coating.

[0088]...

Embodiment 1

[0133] (1) Preparation of fluorine-containing (meth)acrylate polymer emulsion

[0134] Weigh 30 parts of distilled water and 2 parts of alkylphenol polyoxyethylene ether ammonium sulfate (CO436) and sulfosuccinate (UCAN-1) emulsifier (CO436, UCAN-1, Shanghai Zhongcheng Fine Chemical Co., Ltd.) Emulsifier solution, and then drop a mixture of 70 parts of methyl methacrylate and 35 parts of butyl acrylate into the above emulsifier solution, and the dropping time is controlled at 10 to 30 minutes to obtain a pre-emulsion; will contain 100 parts of distilled water and 1 Stir the emulsifier solution of one part of emulsifier evenly, then add one part of ammonium persulfate, and start to add the above pre-emulsion and 35 parts of 1.5% ammonium persulfate aqueous solution dropwise when the temperature of the water bath rises to 85 ° C, and the dropping time is 2 to 5 hours; After the aforementioned reaction, add 8 parts of hexafluorobutyl methacrylate, 10 parts of methyl methacrylate ...

Embodiment 2

[0159] Except that dodecafluoroheptyl methacrylate was used to replace hexafluorobutyl acrylate, other conditions were the same as in Example 1. The performance of the product obtained meets the requirements in Table 2.

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Abstract

The invention discloses a heat reflecting paint, and a preparation method and an application thereof. The heat reflecting paint comprises the following components in parts by weight: 100 parts of fluorine-containing (methyl) acrylate polymer emulsion, 2-30 parts of reflecting pigment, 0.1-4 parts of filler, 2-40 parts of flatting agent, 1-20 parts of coalescing agent, 0.01-1 part of thickening agent, 0.01-2 parts of dispersant, 0.001-1 part of wetting agent, 0.1-60 parts of distilled water and 0.5-5 parts of cross-linking agent. The heat reflecting paint provided by the invention is high in heat reflection performance, and excellent in acid and alkali resistance, weather fastness and stain resistance. The heat reflecting paint provided by the invention is applied to a bituminous pavement; the heat reflecting paint is capable of relieving the urban heat island effect by reducing the road surface temperature, and reducing the environmental pollution generated in the use process of the coating, and also capable of improving the stain resistance of the coating and ensuring persistent cooling effect of the heat reflecting coating.

Description

technical field [0001] The invention relates to the field of materials used in road engineering, and mainly relates to a heat-reflective paint and a preparation method and application thereof, in particular to a heat-reflective paint for a fluorine-containing (meth)acrylate polymer emulsion road, a preparation method and an application. Background technique [0002] In recent years, due to the rapid deterioration of the high-temperature disease and urban heat island effect caused by the high temperature of asphalt pavement in summer, heat-reflective coatings on asphalt pavements have gradually attracted people's attention, making heat-reflective coatings available in highways, urban roads and other road sections. The asphalt pavement heat reflective coating reflects the near-infrared and visible light in sunlight through the functional pigment and filler particles in the coating, thereby reducing the heat absorption of the asphalt pavement and reducing the surface temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/16C09D5/33C09D7/12
CPCY02A30/60
Inventor 唐伯明曹雪娟朱洪洲刘唐志邹晓翎孔令云何丽红尚婷罗婷倚
Owner 唐伯明
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