Radiation cooling film material

Abstract

The utility model provides a radiation refrigeration membrane material, including a refrigeration module and a protection module, the refrigeration module is arranged in the protection module, the refrigeration module includes a base layer, the top end of the base layer is fixedly connected with a reflection layer, the bottom end of the inner side wall of the reflection layer is fixedly connected with a nano particle layer, and the nano particle layer is arranged in the protection module. The top end of the reflecting layer is fixedly connected with an emitting layer, a plurality of bubble holes are evenly distributed in the emitting layer, the protection module comprises a repairing layer, a plurality of repairing capsules arranged in a rectangular array are arranged on the inner side wall of the repairing layer, the side wall of the repairing layer is fixedly connected with a cleaning layer, and the side wall of the cleaning layer is fixedly connected with a hydrophobic layer. And the emission layer is fixedly connected with the inner side wall of the repair layer. According to the radiation refrigeration membrane material, by arranging the refrigeration module and the protection module, the emission performance and the reflection performance of the membrane material can be further enhanced, and the overall use efficiency of the radiation refrigeration membrane material is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of radiative cooling film materials, and more particularly to a radiative cooling film material. Background Technology

[0002] Outer space and the sun, as Earth's most important cold and heat sources, maintain the Earth's energy balance. In recent years, passive radiative cooling technology based on the low-temperature cold source of outer space has received widespread attention and has gradually become a rising star in the field of renewable energy technology. Compared with active cooling technology, radiative cooling technology does not require energy consumption. The heat of an object is transferred to the cold source in outer space through atmospheric windows in the form of infrared radiation. As long as the energy that the object receives from the outside world is lower than the energy it radiates, it can spontaneously achieve the effect of cooling itself. Radiative cooling technology can be widely used in building cooling, condensate collection, solar cell cooling, outdoor equipment heat dissipation, agricultural greenhouse cooling and other fields, and has broad application prospects.

[0003] While existing technologies use cooling membranes to lower the temperature of objects, the membranes accumulate dirt on their surfaces over long-term use, which reduces the overall efficiency of the radiative cooling membranes. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a radiation-cooled film material. It provides a radiation-cooled film material that can further enhance the emission and reflection performance of the film material by setting a cooling module, and effectively improve the overall efficiency of the radiation-cooled film material during use by setting a protection module.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] Some embodiments of this utility model provide a radiation-cooled film material, including a cooling module and a protective module. The cooling module is disposed inside the protective module. The cooling module includes a base layer, a reflective layer fixedly connected to the top of the base layer, a nanoparticle layer fixedly connected to the bottom of the inner sidewall of the reflective layer, and an emission layer fixedly connected to the top of the reflective layer. Multiple air bubbles are uniformly distributed inside the emission layer. The protective module includes a repair layer, a plurality of repair capsules arranged in a rectangular array are disposed on the inner sidewall of the repair layer, a cleaning layer is fixedly connected to the sidewall of the repair layer, a hydrophobic layer is fixedly connected to the sidewall of the cleaning layer, and the emission layer is fixedly connected to the inner sidewall of the repair layer.

[0007] In this invention, by setting a cooling module and setting an emitting layer at the top of the reflective layer, infrared radiation can be effectively emitted. At the same time, the high emissivity coating is the key part to achieve radiation cooling, which effectively improves the overall working efficiency of the radiation cooling film material during use. Furthermore, by setting bubble pores in the emitting layer and setting a nanoparticle layer at the bottom of the reflective layer, the emission and reflection performance of the film material can be further enhanced.

[0008] In one embodiment, both the reflective layer and the base layer sidewall are fixedly connected to the inner sidewall of the repair layer; this effectively fixes the reflective layer and the base layer.

[0009] In one embodiment, the plurality of bubble pores employ a nanoporous structure, which can further enhance the emissivity and reflectivity of the membrane material.

[0010] In one embodiment, the base layer is a polyester layer, which helps to effectively improve the overall structural strength of the radiative cooling membrane.

[0011] In one embodiment, the emitting layer is an alumina polymer layer, which is beneficial for effectively improving the emission effect.

[0012] In one embodiment, the hydrophobic layer is made of polytetrafluoroethylene, which allows water droplets to form spherical shapes on the membrane surface, achieving a self-cleaning effect and avoiding affecting the working efficiency of the radiative cooling membrane.

[0013] In one embodiment, the cleaning layer is a photocatalytic material layer that can be activated by ultraviolet rays in sunlight to decompose organic pollutants, thereby achieving self-cleaning.

[0014] Furthermore, the reflective layer is made of metallic silver, which can effectively improve the reflective effect of the reflective layer.

[0015] In one embodiment, the thickness of the radiative cooling film is 1-10 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, by setting a cooling module and setting an emitting layer at the top of the reflective layer, infrared radiation can be effectively emitted. At the same time, the high emissivity coating is the key part to achieve radiation cooling, which effectively improves the overall working efficiency of the radiation cooling film material during use. Furthermore, by setting bubble pores in the emitting layer and setting a nanoparticle layer at the bottom of the reflective layer, the emission and reflection performance of the film material can be further enhanced.

[0018] In this invention, a protective module is set up, and a repair capsule is set in the repair layer. Microcapsules containing repair agents are embedded in the membrane material. When a minor damage occurs on the surface of the membrane material, the microcapsules rupture, release the repair agent, fill and solidify the damaged area, and achieve self-repair, effectively improving the overall efficiency of the radiation cooling membrane material during use.

[0019] In this invention, a hydrophobic layer is provided on the outside of the cleaning layer to achieve a self-cleaning effect. Furthermore, the cleaning layer is made of a photocatalytic material layer, which can be activated by ultraviolet rays in sunlight to decompose organic pollutants and achieve self-cleaning, effectively further improving the overall working efficiency of the radiation cooling film material. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a radiation-cooling film material according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a cooling module structure for a radiation-cooled film material according to an embodiment of the present invention;

[0022] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0023] Explanation of reference numerals in the attached diagram: 1. Cooling module; 101. Emitting layer; 102. Reflecting layer; 103. Base layer; 104. Bubble pores; 105. Nanoparticle layer; 2. Protection module; 201. Hydrophobic layer; 202. Cleaning layer; 203. Repair layer; 204. Repair capsule. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1-3This embodiment provides a radiation-cooled film material including a cooling module 1 and a protective module 2. The cooling module 1 is disposed inside the protective module 2. The cooling module 1 includes a base layer 103, a reflective layer 102 fixedly connected to the top of the base layer 103, a nanoparticle layer 105 fixedly connected to the bottom of the inner wall of the reflective layer 102, and an emitting layer 101 fixedly connected to the top of the reflective layer 102. Multiple air bubbles 104 are uniformly distributed inside the emitting layer 101. The protective module 2 includes a repair layer 203, and multiple repair capsules 204 arranged in a rectangular array are disposed on the inner wall of the repair layer 203. A cleaning layer 202 is fixedly connected to the wall, and a hydrophobic layer 201 is fixedly connected to the side wall of the cleaning layer 202. The emitting layer 101 is fixedly connected to the inner side wall of the repair layer 203. By setting the cooling module 1, the emitting layer 101 is set at the top of the reflective layer 102, which can effectively emit infrared radiation. At the same time, the high emissivity coating is the key part to achieve radiation cooling, which effectively improves the overall working efficiency of the radiation cooling film material during use. Bubble holes 104 are set in the emitting layer 101, and a nanoparticle layer 105 is set at the bottom of the reflective layer 102, which can further enhance the emission and reflection performance of the film material.

[0026] The sidewalls of the reflective layer 102 and the base layer 103 are fixedly connected to the inner sidewall of the repair layer 203. Multiple air bubbles 104 employ a nanoporous structure. The base layer 103 is made of polyester, the emitting layer 101 is made of alumina polymer, the hydrophobic layer 201 is made of tetrafluoroethylene, the cleaning layer 202 is made of photocatalytic material, and the reflective layer 102 is made of metallic silver. It should be noted that by setting the protection module 2 and incorporating repair capsules 204 within the repair layer 203, microcapsules containing repair agents are embedded in the membrane material. When minor damage occurs on the membrane surface, the microcapsules rupture, releasing the repair agent to fill and solidify the damaged area, achieving self-repair and effectively improving the overall efficiency of the radiative cooling membrane material during use.

[0027] The thickness of the radiation-cooling film material described in this embodiment can be 1-10 mm, preferably 2-5 mm. The thickness of each structural layer can be determined according to actual needs. For example, the thicknesses of the base layer, emitting layer, hydrophobic layer, cleaning layer, and reflective layer can be 300 micrometers-2 mm, 100-800 micrometers, 10-100 micrometers, 50-200 micrometers, and 10-50 micrometers, respectively.

[0028] In the radiative cooling membrane material of this embodiment, by setting a cooling module 1 and setting an emitting layer 101 at the top of the reflective layer 102, infrared radiation can be effectively emitted. At the same time, the high emissivity coating is the key part to achieve radiative cooling, effectively improving the overall working efficiency of the radiative cooling membrane material during use. Bubble holes 104 are set in the emitting layer 101 and a nanoparticle layer 105 is set at the bottom of the reflective layer 102, which can further enhance the emission and reflection performance of the membrane material. By setting a protection module 2 and setting a repair capsule 204 in the repair layer 203, microcapsules containing repair agents are embedded in the membrane material. When a small damage occurs on the surface of the membrane material, the microcapsules rupture, release the repair agent, fill and solidify the damaged area, and achieve self-repair, effectively improving the overall working efficiency of the radiative cooling membrane material during use. By setting a hydrophobic layer 201 on the outside of the cleaning layer 202, a self-cleaning effect can be achieved. The cleaning layer 202 is a photocatalytic material layer, which can be activated by ultraviolet rays in sunlight to decompose organic pollutants and achieve self-cleaning, effectively further improving the overall working efficiency of the radiative cooling membrane material.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radiation-cooling film material, characterized in that, The system includes a cooling module (1) and a protection module (2). The cooling module (1) is located inside the protection module (2). The cooling module (1) includes a base layer (103). A reflective layer (102) is fixedly connected to the top of the base layer (103). A nanoparticle layer (105) is fixedly connected to the bottom of the inner sidewall of the reflective layer (102). An emission layer (101) is fixedly connected to the top of the reflective layer (102). Multiple bubble pores (104) are evenly distributed inside the emission layer (101). The protection module (2) includes a repair layer (203). Multiple repair capsules (204) arranged in a rectangular array are provided on the inner sidewall of the repair layer (203). A cleaning layer (202) is fixedly connected to the sidewall of the repair layer (203). A hydrophobic layer (201) is fixedly connected to the sidewall of the cleaning layer (202). The emission layer (101) is fixedly connected to the inner sidewall of the repair layer (203).

2. The radiation-cooling film material according to claim 1, characterized in that: The sidewalls of the reflective layer (102) and the base layer (103) are fixedly connected to the inner sidewall of the repair layer (203).

3. The radiation-cooling film material according to claim 1, characterized in that: The multiple bubble pores (104) adopt a nanoporous structure.

4. The radiation-cooling film material according to claim 1, characterized in that: The base layer (103) is made of polyester.

5. The radiation-cooling film material according to claim 1, characterized in that: The emission layer (101) is made of an alumina polymer layer.

6. The radiation-cooling film material according to claim 1, characterized in that: The hydrophobic layer (201) is made of tetrafluoroethylene.

7. The radiation-cooling film material according to claim 1, characterized in that: The cleaning layer (202) is made of photocatalytic material.

8. The radiation-cooling film material according to claim 1, characterized in that: The reflective layer (102) is made of metallic silver.

9. The radiation-cooling film material according to claim 1, characterized in that: The thickness of the radiation-cooling film is 1-10 mm.

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