Light green refrigeration coating with temperature lower than ambient temperature under direct sunlight

A technology for surrounding environment and direct sunlight, applied in reflective/signal coatings, coatings, primers, etc., can solve problems such as light pollution

Active Publication Date: 2019-09-06
哈尔滨中科材料工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing white refrigeration paint will dazzle and cause light pollution

Method used

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  • Light green refrigeration coating with temperature lower than ambient temperature under direct sunlight
  • Light green refrigeration coating with temperature lower than ambient temperature under direct sunlight

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specific Embodiment approach 1

[0011] Specific Embodiment 1: This embodiment is a kind of light green refrigeration coating that is lower than the surrounding ambient temperature under direct sunlight. It is composed of a white primer and a light green topcoat. The solar reflectance of the white primer is 0.9, and the sunlight The effective solar reflectance of the light green cooling coating lower than the ambient temperature under direct sunlight is ≥0.935.

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the thickness of the white base paint is ≥250 μm, and the thickness of the light green top paint is 50 μm˜100 μm. Others are the same as the first embodiment.

specific Embodiment approach 3

[0013] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the white primer is composed of styrene-acrylic emulsion, titanium dioxide, talcum powder, far-infrared ceramic powder, water and additives, and The mass fraction of styrene-acrylic emulsion in the white primer is 44%, the mass fraction of titanium dioxide is 30%, the mass fraction of talcum powder is 8%, the mass fraction of far-infrared ceramic powder is 6%, and the mass fraction of water is 10%. , the mass fraction of additives is 2%. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a light green refrigeration coating with temperature lower than ambient temperature under direct sunlight, relates to a refrigeration coating, and aims to solve the problem that the existing white refrigeration coating can cause dazzling in sunlight and cause light pollution. The light green refrigeration coating with temperature lower than ambient temperature under directsunlight comprises a white primer and a light green topcoat, the solar reflectance of the white primer is 0.9, and the effective solar reflectance of the light green refrigeration coating with temperature lower than ambient temperature under direct sunlight is more than or equal to 0.935. Advantages are that: the surface temperature of the light green refrigeration coating with temperature lower than ambient temperature under direct sunlight during the noon period (10: 00 a.m. to 2: 00 p.m.) is lower than the temperature (ambient temperature) by more than 4 DEG C on average. The method is mainly used for preparing the light green refrigeration coating with temperature lower than ambient temperature under direct sunlight.

Description

technical field [0001] The invention relates to a cooling coating. Background technique [0002] Because it can provide fluorine-free and electricity-free refrigeration, as a passive cooling measure, the radiative cooling technology that is lower than the ambient temperature under direct sunlight has become one of the most popular frontier research fields in the world in the past few years. Since 2014, when American scientists first successfully observed the radiative cooling phenomenon under direct sunlight on a photon radiation cooler with complex structure and quantum size, which is lower than the surrounding ambient temperature, different researchers have successively used different methods to successfully realize the sunlight Cooling under direct sunlight lower than ambient air temperature. The difference between refrigeration coatings and solar heat-reflecting heat-insulating coatings is that under direct sunlight, the surface temperature of cooling coatings is lower ...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D5/00C09D7/61
CPCC08K2003/2241C09D5/002C09D5/004C09D125/14C09D7/61C08K3/34C08K3/22C08K3/24
Inventor 王惠群王琛
Owner 哈尔滨中科材料工程有限公司
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