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Reflective radiation refrigeration film

A technology of radiation refrigeration and film, which is applied in refrigerators, refrigeration and liquefaction, and radiation-absorbing coatings. It can solve the problems of difficult control of the refrigeration film preparation process, complicated manufacturing process, and low refrigeration efficiency, and achieve good radiation refrigeration effects. The effect of low cost and improved cooling effect

Pending Publication Date: 2019-01-04
宁波瑞凌辐射制冷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned several schemes, the refrigerated film generally has the disadvantages of difficult control of the preparation process, low refrigeration efficiency, relatively complicated manufacturing process, and high cost (see CN105348892B)

Method used

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  • Reflective radiation refrigeration film
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  • Reflective radiation refrigeration film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a radiation cooling film. The radiation cooling film includes a coating layer a, a metal layer b, a transparent polyester PET layer c, an adhesive d and a release protective film e arranged in sequence, and the thickness is 50 μm. The ratio of the thickness of the layer to the total thickness of the radiative cooling film is as follows:

[0040] Coating layer a: 2%;

[0041] Metal layer b: 0.01%;

[0042] Transparent polyester PET layer c: 87.99%;

[0043] Mounting glue d: 5%;

[0044] Release protective film e: 5%.

[0045] In this embodiment, coating layer a includes polymethyl methacrylate paint, SiC with a particle size of 1 μm, benzotriazole ultraviolet absorber, nanoscale indium tin oxide antistatic agent, and indium tin oxide (ITO) Infrared absorber.

[0046] In this embodiment, SiC accounts for 1%wt of the entire coating layer a, the metal layer b is gold (Au), the transparent polyester PET is biaxially stretched PET, the mounting a...

Embodiment 2

[0048] This embodiment provides a radiation cooling film, which includes a coating layer a, a metal layer b, a transparent polyester PET layer c, an adhesive d and a release protective film e arranged in sequence, and the thickness is 150 μm. The ratio of the thickness to the total thickness of the radiative cooling film is as follows:

[0049] Coating layer a: 10%;

[0050] Metal layer b: 0.1%;

[0051] Transparent polyester PET layer c: 14.9%;

[0052] Mounting glue d: 40%;

[0053] Release protective film e: 35%.

[0054] In this embodiment, the coating layer a includes polybutylmethacrylate coating, SiO with a particle size of 15 μm 2 , benzotriazole ultraviolet absorber, ethoxylated aliphatic alkylamine antistatic agent and antimony tin oxide (ATO) infrared absorber.

[0055] In this example, SiO 2 Accounting for 10%wt of the entire coating layer a, the metal layer b is metal aluminum and silver. Transparent polyester PET, mounting adhesive d and release protective...

Embodiment 3

[0057] This embodiment provides a radiation cooling film, which includes a coating layer a, a metal layer b, a transparent polyester PET layer c, an adhesive d and a release protective film e from top to bottom, with a thickness of 120 μm, each layer The ratio of the thickness to the total thickness of the radiation cooling film is as follows:

[0058] Coating layer a: 4%;

[0059] Metal layer b: 0.03%;

[0060] Transparent polyester PET layer c: 70.97%;

[0061] Mounting glue d: 10%;

[0062] Release protective film e: 15%.

[0063] In this embodiment, the coating layer a includes polymethyl methacrylate paint, TiO with a particle size of 4 μm 2 , benzotriazole ultraviolet absorber, ethoxylated aliphatic alkylamine antistatic agent, and indium tin oxide (ITO) and antimony tin oxide (ATO) infrared absorber with a mass ratio of 1:1.

[0064] In this example, TiO 2 Accounting for 4%wt of the entire coating layer a, the metal layer b is metal chromium and titanium. The trans...

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Abstract

The invention discloses a reflective radiation refrigeration film which comprises a coating layer, a metal layer, a transparent PET (polyethylene terephthalate) layer, adhesives and a release protective film which are sequentially arranged. The coating layer comprises organic acrylic coatings and micro-spheres, the micro-spheres are one of SiC, SiO2, TiO2, BaSO4 and CaCO3, the metal layer is deposited on the transparent PET layer by a magnetron sputtering method, and the ratios of the thicknesses of all the layers to the total thickness of the radiation refrigeration film include 2%-10% of thecoating layer, 0.01%-0.1% of the metal layer, 14.9%-87.99% of transparent PET, 5%-40% of the adhesives and 5%-35% of the release protective film. The micro-spheres with the particle size of 1-15 micrometers are randomly inlaid into polymethyl methacrylate coatings to prepare the film with the thickness of 50-150 micrometers. The film is simple and easy in preparation method, low in cost and goodin radiation refrigeration effect.

Description

technical field [0001] The invention relates to the field of films, in particular to a reflective radiation cooling film. Background technique [0002] Radiation cooling technology refers to the atmospheric window that transmits the heat of the heat source through infrared radiation (because the atmosphere has a high transmittance for thermal radiation in the 8-13μm wavelength range, with an average transmittance of 85%, this band is called the atmospheric window) A new type of refrigeration technology transferred to the cold source of outer space. [0003] Traditional refrigeration technology usually needs to consume energy and resources to remove heat, while radiant cooling technology is a passive enhancement that utilizes the natural cooling method of the earth. Radiant cooling has the advantages of zero energy consumption, zero pollution, and no moving parts, and has positive significance for cooling, energy saving, and environmental protection. Radiation cooling can b...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09D5/32C09D7/61C08J7/04C08L67/02F25B23/00
CPCF25B23/00C09J7/25C09D5/32C09D7/61C08J2367/02C08J2433/00C09J2467/006C09J2433/00C08J7/0423
Inventor 不公告发明人
Owner 宁波瑞凌辐射制冷科技有限公司
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