Cement-based radiation refrigeration dry powder paint, building coating and coating preparing method

A technology of radiant cooling and dry powder coatings, applied in cement coatings, powder coatings, reflective/signal coatings, etc., can solve problems such as limited cooling effect, achieve good durability and weather resistance, improve heat insulation and cooling, and slow down the urban heat island effect Effect

Inactive Publication Date: 2019-08-09
NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the cooling effect of existing architectural cooling coatings is limited

Method used

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  • Cement-based radiation refrigeration dry powder paint, building coating and coating preparing method

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preparation example Construction

[0043] The present invention also provides a kind of preparation method of radiation refrigeration coating, comprises the following steps:

[0044] S1, add 1~5 parts by mass of additives and 5~15 parts by mass of quartz powder into the powder mixer, and mix for 10min~20min;

[0045] S2, the white cement of 30~50 parts by weight, the heavy calcium powder of 5~15 parts by weight, the talcum powder of 5~15 parts by weight, the ash calcium of 3~10 parts by weight, the functional filler of 15~30 parts by weight and all Add the mixed material in the above step S1 into the powder mixer, and mix for 15min~30min to obtain a cement-based radiant cooling dry powder coating. The particle size of the functional filler is 1μm~40μm, and the functional filler can convert its own heat into the 7μm~14μm band The electromagnetic wave is emitted outward, so that the emissivity of the cement-based radiation cooling dry powder coating in the 7μm~14μm band is more than 85%, and the cement-based radi...

Embodiment 1

[0049] The formula of cement-based radiation refrigeration dry powder coating is:

[0050] 40 parts by mass of white cement;

[0051] 10 parts by mass of quartz powder;

[0052] 5 parts by mass of heavy calcium powder;

[0053] 10 parts by mass of talcum powder;

[0054] Ash calcium 3 parts by mass;

[0055] 20 parts by mass of the first filler (titanium dioxide with a particle size of 5 μm);

[0056] 10 parts by mass of the second filler (titanium dioxide with a particle size of 25 μm);

[0057] Auxiliaries (including 0.2 parts by mass of superplasticizer, 1.5 parts by mass of film-forming agent, 0.05 parts by mass of thickener, 0.05 parts by mass of water-retaining agent, and 0.2 parts by mass of defoamer).

[0058] The preparation method of cement-based radiation refrigeration dry powder coating is:

[0059] (1) Weigh the auxiliary agent and quartz powder according to the above formula, add them to the powder mixer, and the mixing time is 10min~20min;

[0060] (2) Ad...

Embodiment 2

[0064] The formula of cement-based radiation refrigeration dry powder coating is:

[0065] 40 parts by mass of white cement;

[0066] 10 parts by mass of quartz powder;

[0067] 5 parts by mass of heavy calcium powder;

[0068] 10 parts by mass of talcum powder;

[0069] Ash calcium 3 parts by mass;

[0070] 20 parts by mass of the first filler (silicon dioxide with a particle size of 5 μm);

[0071] 10 parts by mass of the second filler (magnesia with a particle size of 30 μm);

[0072] Auxiliaries (including 0.2 parts by mass of superplasticizer, 1.5 parts by mass of film-forming agent, 0.05 parts by mass of thickener, 0.05 parts by mass of water-retaining agent, and 0.2 parts by mass of defoamer).

[0073] The preparation method of the cement-based radiative cooling dry powder coating and the radiative cooling coating is the same as in Example 1.

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Abstract

The invention discloses a cement-based radiation refrigeration dry powder paint and a building coating. The cement-based radiation refrigeration dry powder paint comprises main ingredients, accessoryingredients and functional filler, wherein the particle size of the functional filler is 1-40 micrometers. The functional filler can transform heat of the filler into electromagnetic waves in the waveband of 7-14 micrometers to emit the electromagnetic waves, so that the emissivity of the cement-based radiation refrigeration dry powder paint is 85% or above in the wave band of 7-14 micrometers, and the cement-based radiation refrigeration dry powder paint has 85% or above emissivity to light in the wave band of 300-2500 nanometers. A radiation refrigeration function is endowed to the cement-based paint, when the outer surface of a building is coated with the paint, the functional filler in the paint can emit the heat of the building to the outer space in the form of electromagnetic wavesin the wave band of 7-14 micrometers, and therefore, cooling of the building is achieved.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to cement-based radiation refrigeration dry powder coatings, building coatings and coating preparation methods. Background technique [0002] With the promulgation of my country's building energy-saving regulations, a climax of research on building cooling coatings has been set off. At present, the purpose of cooling is mainly achieved by endowing the coating with better heat insulation and / or reflection properties. The mechanism of thermal insulation and cooling coating is to prevent heat conduction, so the smaller the thermal conductivity, the better the thermal insulation performance. The mechanism of the reflective cooling coating is to reflect the visible light and near-infrared light in the sunlight through the reflection of the coating film, so as to avoid the temperature rise of the object itself due to the absorption of radiation. [0003] However, the cool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/06C09D5/33C09D5/03C09D7/61
CPCC09D1/06C09D5/004C09D5/033C09D7/61
Inventor 徐绍禹杨剑黄安冲其他发明人请求不公开姓名
Owner NINGBO RADI COOL ADVANCED ENERGY TECH CO LTD
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