Heat insulation film
By introducing a light adjustment layer and a photocatalytic layer into the insulation film, the problem that the existing insulation film is susceptible to the external environment is solved, and higher insulation performance and self-cleaning capacity are achieved, reducing cleaning and maintenance costs and environmental impacts.
Patent Information
- Application Number
- CN202421555671.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Existing thermal insulation films are susceptible to external environmental factors such as rainwater, fog, stains, dust, etc., which leads to the need to be cleaned regularly, and the cleaning cost is high and not environmentally friendly.
A heat insulation film is designed, including a base layer, a light-regulating layer and a photocatalytic layer. The light adjustment layer is arranged on the second side of the base layer to reduce the transmittance of infrared and ultraviolet light and improve thermal insulation performance. The photocatalytic layer is arranged on the side of the light adjustment layer facing away from the base layer, and has photocatalytic characteristics, has self-cleaning ability, and reduces adhesion of environmental factors.
Effectively improve the thermal insulation performance of the insulation film, reduce cleaning and maintenance costs, improve environmental protection performance, and simplify the production process and reduce complexity.
Smart Images
Figure CN223030545U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of heat insulation films, and particularly to a heat insulation film. Background Art
[0002] With the gradual improvement of people's living standards, heat insulation films have become increasingly popular in people's daily lives. For example, heat insulation films are used in heat dissipation components such as cars, exterior wall glass, and outdoor signs. However, current heat insulation films are easily affected by external environmental factors such as rainwater, fog water, stains, dust, etc., so it is necessary to regularly clean the heat dissipation components covered with heat insulation films. Currently, the cleaning methods for heat dissipation components have a high cleaning cost and are not environmentally friendly. Summary of the Invention
[0003] This application provides a heat insulation film, which includes: a base layer having a first side and a second side disposed opposite to each other, and the first side is used to connect to a heat dissipation component; a light adjustment layer disposed on the second side of the base layer; and a photocatalytic layer disposed on the side of the light adjustment layer facing away from the base layer, and the photocatalytic layer has photocatalytic properties.
[0004] In some embodiments, the light adjustment layer includes a preset number of nanometer adjustment layers stacked in the stacking direction from the base layer to the photocatalytic layer; the preset number of nanometer adjustment layers at least includes a nanometer adjustment layer with a first light refractive index and a nanometer adjustment layer with a second light refractive index, and the first light refractive index is greater than or less than the second light refractive index.
[0005] In some embodiments, the preset number is greater than or equal to 6 layers.
[0006] In some embodiments, the nanometer adjustment layer includes a first tantalum pentoxide nanolayer and a nanosilica layer stacked in sequence along the stacking direction.
[0007] In some embodiments, the preset number is 6 layers. Along the stacking direction, the thicknesses of the first tantalum pentoxide nanolayers are sequentially set to 100 nm - 110 nm, 190 nm - 200 nm, 90 nm - 100 nm, 90 nm - 100 nm, 110 nm - 120 nm, 210 nm - 220 nm; the thicknesses of the nanosilica layers are sequentially set to 180 nm - 190 nm, 160 nm - 170 nm, 150 nm - 160 nm, 160 nm - 170 nm, 180 nm - 190 nm, 170 nm - 180 nm.
[0008] In some embodiments, the photocatalytic layer includes a second titanium dioxide nanolayer.
[0009] In some embodiments, the ratio of the thickness of the second titanium dioxide nanolayer to the thickness of the light adjustment layer is between 0.59 and 0.74.
[0010] In some embodiments, the thickness of the second titanium dioxide nanolayer ranges from 116 nm to 153 nm.
[0011] In some embodiments, the base layer includes a PET base layer or a glass base layer, and the heat insulation film further includes a transparent adhesive layer disposed on the first side for bonding the heat insulation film to the component to be cooled.
[0012] In some embodiments, the thickness of the transparent adhesive layer ranges from 6 μm to 11 μm.
[0013] The beneficial effects of the embodiments of the present application are as follows: The heat insulation film of the present application includes a base layer, a light regulation layer, and a photocatalytic layer. The light regulation layer is disposed on the second side of the base layer, so that the transmittance of infrared light and ultraviolet light can be effectively reduced, thereby effectively improving the heat insulation performance of the heat insulation film. Moreover, the photocatalytic layer is disposed on the side of the light regulation layer away from the base layer, so that the outer surface of the heat insulation film (i.e., the side of the heat insulation film away from the component to be cooled) has self-cleaning ability, effectively reducing the probability of environmental factors such as rainwater, dust, and stains adhering to the heat insulation film. Thus, while effectively reducing the cleaning and maintenance costs of the heat insulation film and the component to be cooled, the environmental performance of the heat insulation film can be effectively improved. In addition, the light regulation layer and the photocatalytic layer are disposed on the same side of the base layer, which can effectively simplify the manufacturing process of the heat insulation film, thereby effectively reducing the complexity of the heat insulation film. Description of the Drawings
[0014] Figure 1 is a schematic structural diagram of an embodiment of the heat insulation film of the present application;
[0015] Figure 2 is a schematic structural diagram of another embodiment of the heat insulation film of the present application;
[0016] Figure 3 is Figure 1 or Figure 2 a schematic structural diagram of the nano-regulation layer shown in Detailed Embodiments
[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0018] The terms "first" and "second" in this application are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.
[0019] This application provides a heat-insulating film 1. Among them, the heat-insulating film 1 of this application has high heat-insulating effect and high light transmittance. Among them, the heat-insulating effect can be understood as the lower transmittance of the heat-insulating film 1 to infrared light and the lower transmittance of ultraviolet light, or it can be understood as the higher blocking rate of the heat-insulating film 1 to infrared light and ultraviolet light. The high light transmittance refers to the high light transmittance of visible light for the human body. The heat-insulating film 1 of this application has high applicability to actual application scenarios such as exterior wall glass of curtain walls, automotive glass, outdoor signs, etc.
[0020] Optionally, in some embodiments, as Figure 1 and Figure 2 shown, the heat-insulating film 1 includes a base layer 100, a light-adjusting layer 200, and a photocatalytic layer 300. Among them, the base layer 100 is provided with a first side and a second side that are oppositely arranged, and the first side is used to connect the component to be cooled, such as exterior wall glass of curtain walls, automotive glass, outdoor signs, etc. that are components to be cooled. Specifically, in some embodiments, the base layer 100 is a transparent base layer. For example, the base layer 100 can be a glass base layer or a PET base layer and other transparent base layers, so as to effectively improve the light transmittance of the heat-insulating film 1 to visible light.
[0021] The light-adjusting layer 200 is disposed on the second side of the base layer 100, that is, on the side of the base layer 100 facing away from the component to be cooled, and is used to isolate or filter ultraviolet light and infrared light, so as to effectively reduce the transmittance of infrared light and ultraviolet light, and thereby effectively improve the heat-insulating performance of the heat-insulating film 1.
[0022] The photocatalytic layer 300 is disposed on the side of the light adjustment layer 200 facing away from the base layer 100, and the photocatalytic layer 300 has photocatalytic properties. Specifically, the photocatalytic layer 300 has photocatalytic properties, that is, when environmental factors such as rainwater, dust, and stains adhere to the surface of the photocatalytic layer 300, under the catalysis of light, the environmental factors such as rainwater, dust, and stains will automatically fall off and are not easily adhered to the surface of the photocatalytic layer 300. In practical applications, the side of the light adjustment layer 200 facing away from the base layer 100 is usually exposed to the external environment and is easily adhered to by environmental factors such as rainwater, dust, and stains. Therefore, setting the photocatalytic layer 300 with photocatalytic properties on the side of the light adjustment layer 200 facing away from the base layer 100 can make the outer surface of the heat insulation film 1 (that is, the side of the heat insulation film 1 facing away from the component to be heat-dissipated) have self-cleaning ability, effectively reducing the probability of environmental factors such as rainwater, dust, and stains adhering to the heat insulation film 1. Thus, while effectively reducing the cleaning and maintenance costs of the heat insulation film 1 and the component to be heat-dissipated, it can also effectively improve the environmental performance of the heat insulation film 1.
[0023] Moreover, the light adjustment layer 200 and the photocatalytic layer 300 are disposed on the same side of the base layer 100, which can effectively simplify the manufacturing process of the heat insulation film 1, thereby effectively reducing the complexity of the heat insulation film 1. For example, during the manufacturing process of the heat insulation film 1, it is only necessary to sequentially layer the light adjustment layer 200 and the photocatalytic layer 300 on the second side of the base layer 100, without the need for turning-over treatment.
[0024] Optionally, in some embodiments, the photocatalytic layer 300 also has photo-hydrophilicity, that is, the photocatalytic layer 300 has hydrophilic properties under the catalysis of light. In this way, it can effectively reduce the probability of rainwater and fog water adhering to the heat insulation film 1, thereby effectively reducing the cleaning and maintenance costs of the heat insulation film 1 and the component to be heat-dissipated.
[0025] Optionally, in some embodiments, the photocatalytic layer 300 includes a second nano-titanium dioxide layer. In other words, the photocatalytic layer 300 is set as a nano-titanium dioxide layer, that is, the photocatalytic layer 300 is made of titanium dioxide material. In this way, it can effectively improve the self-cleaning ability of the photocatalytic layer 300, thereby further reducing the probability of environmental factors such as rainwater, dust, and stains adhering to the heat insulation film 1. Thus, while effectively reducing the cleaning and maintenance costs of the heat insulation film 1 and the component to be heat-dissipated, it can also effectively improve the environmental performance of the heat insulation film 1.
[0026] Optionally, as Figure 1As shown, in some embodiments, the ratio of the thickness h1 of the second titanium dioxide nanolayer to the thickness h2 of the light adjustment layer 200 ranges from 0.59 to 0.74. For example, the thickness ratio can be set to any actual value between 0.59 and 0.74, such as 0.59, 0.60, 0.65, 0.70, or 0.74. Such a setting can effectively ensure the self-cleaning ability of the photocatalytic layer 300 while effectively reducing the influence of the photocatalytic layer 300 on the heat insulation performance of the light adjustment layer 200.
[0027] Optionally, as Figure 1 shown, in some embodiments, the thickness h1 of the second titanium dioxide nanolayer can be set to 116 nm to 153 nm. For example, 116 nm, 117 nm, 126 nm, 130 nm, or 153 nm, or any value between 116 nm and 153 nm. This can effectively ensure the self-cleaning ability of the photocatalytic layer 300.
[0028] Optionally, as Figure 3 shown, in some embodiments, the light adjustment layer 200 includes a preset number of nanolayers 230 stacked along the stacking direction x1 from the base layer 100 to the photocatalytic layer 300; the preset number of nanolayers 230 includes at least a nanolayer 230 with a first light refractive index and a nanolayer 230 with a second light refractive index, and the first light refractive index is greater than or less than the second light refractive index.
[0029] Specifically, in this embodiment, the light adjustment layer 200 is formed by stacking multiple nanolayers 230 along the stacking direction x1. Among them, the light refractive index of each nanolayer 230 can be set according to the actual situation, that is, as described above, "the preset number of nanolayers 230 includes at least a nanolayer 230 with a first light refractive index and a nanolayer 230 with a second light refractive index, and the first light refractive index is greater than or less than the second light refractive index". By preparing the light adjustment layer 200 in this stacking manner, the adjustability of the light refractive index of the light adjustment layer 200 during the preparation process can be effectively improved, so that the light adjustment layer 200 with a predetermined light refractive index can be obtained more conveniently, and thus the preparation convenience of the light adjustment layer 200 is effectively improved.
[0030] Optionally, in some embodiments, the preset number of nanolayers 230 is greater than or equal to 6 layers. Such a setting can effectively improve the adjustability of the light refractive index of the light adjustment layer 200 during the preparation process, and thus effectively improve the preparation convenience of the light adjustment layer 200.
[0031] Optionally, as Figure 3As shown, in some embodiments, the nano-adjustment layer 230 includes a first nano-tantalum pentoxide layer 210 and a nano-silica layer 220 that are sequentially stacked along the stacking direction x1. Specifically, the first nano-tantalum pentoxide layer 210 is a structural layer made of tantalum pentoxide material, which can effectively improve the light transmittance of the light-adjustment layer 200 and the filtering efficiency of the light-adjustment layer 200 for ultraviolet and infrared light, thereby effectively improving the heat insulation effect of the heat insulation film 1.
[0032] Optionally, as Figure 3 shown, in some embodiments, the preset number of layers of the nano-adjustment layer 230 is 6. Along the stacking direction x1, the thickness h4 of the first nano-tantalum pentoxide layer 210 is sequentially set to 100 nm - 110 nm, 190 nm - 200 nm, 90 nm - 100 nm, 90 nm - 100 nm, 110 nm - 120 nm, 210 nm - 220 nm; the thickness h3 of the nano-silica layer 220 is sequentially set to 180 nm - 190 nm, 160 nm - 170 nm, 150 nm - 160 nm, 160 nm - 170 nm, 180 nm - 190 nm, 170 nm - 180 nm. With such settings, while effectively improving the light transmittance of the light-adjustment layer 200, it can also effectively improve the blocking rate of the light-adjustment layer 200 for infrared and ultraviolet light. For details, please refer to Table 1 below.
[0033] Table 1:
[0034] Optical wave wavelength / nm 350 450 550 650 750 850 950 1050 1150 1500 Transmittance / % 15 71 68 75 40 10 20 17 15 13 Reflectance / % 85 29 32 25 60 90 80 83 85 87
[0035] Specifically, referring to Table 1, the thickness h4 of the first nano-tantalum pentoxide layer 210 is sequentially set to 100 nm, 190 nm, 90 nm, 90 nm, 110 nm, 210 nm, and the thickness h3 of the nano-silica layer 220 is sequentially set to 180 nm, 160 nm, 150 nm, 160 nm, 180 nm,
[0036] After 170 nm, the light transmittance and reflectance of the light regulating layer 200 for light of each wavelength band. Among them, the higher the transmittance, the higher the transmittance of the light regulating layer 200 for the light of this wavelength band, and the higher the reflectance, the higher the blocking rate of the light regulating layer 200 for the light of this wavelength band. As can be seen from Table 1 in the appendix, the light regulating layer 200 configured in this way has a relatively high transmittance for visible light (light waves with wavelengths between 390 nm and 780 nm) and a relatively small reflectance. The light regulating layer 200 has a relatively low transmittance and a relatively high reflectance for infrared light (light waves with wavelengths between 180 nm and 400 nm) and ultraviolet light (light waves with wavelengths greater than 780 nm). Therefore, the light regulating layer 200 configured in this way can effectively improve the light transmittance of the heat insulation film 1 and effectively improve the blocking rate of the heat insulation film 1 for infrared light and ultraviolet light, thereby effectively improving the heat insulation performance of the heat insulation film 1.
[0037] Optionally, as Figure 2 shown, in some embodiments, the heat insulation film 1 further includes a transparent adhesive layer 400, which is disposed on the first side and is used to bond the heat insulation film 1 to the component to be cooled. Specifically, in this embodiment, the transparent adhesive layer 400 with bonding function is disposed on the first side of the base layer 100, so that the heat insulation film 1 can be quickly bonded to the surface of the component to be cooled by pasting, thereby effectively improving the installation efficiency of the heat insulation film 1.
[0038] Optionally, as Figure 2 shown, in some embodiments, the thickness h5 of the transparent adhesive layer 400 ranges from 6 μm to 11 μm. Such a setting can effectively ensure the bonding strength between the heat insulation film 1 and the component to be cooled, and at the same time can effectively reduce the influence of the transparent adhesive layer 400 on the light transmittance of the heat insulation film 1.
[0039] Optionally, in some embodiments, the heat insulation film 1 may not be provided with the transparent adhesive layer 400 and may be attached to the component to be cooled through auxiliary components. For example, it may be attached to the component to be cooled through auxiliary components such as transparent tapes, screws, and bolts.
[0040] In summary, the heat insulation film 1 of the present application includes a base layer 100, a light adjustment layer 200, and a photocatalytic layer 300. The light adjustment layer 200 is disposed on the second side of the base layer 100, so that the transmittance of infrared light and ultraviolet light can be effectively reduced, thereby effectively improving the heat insulation performance of the heat insulation film 1. Moreover, the photocatalytic layer 300 is disposed on the side of the light adjustment layer 200 away from the base layer 100, so that the outer surface of the heat insulation film 1 (i.e., the side of the heat insulation film 1 away from the component to be cooled) has self-cleaning ability, effectively reducing the probability of environmental factors such as rainwater, dust, and stains adhering to the heat insulation film 1. Thus, while effectively reducing the cleaning and maintenance costs of the heat insulation film 1 and the component to be cooled, the environmental performance of the heat insulation film 1 can also be effectively improved. In addition, the light adjustment layer 200 and the photocatalytic layer 300 are disposed on the same side of the base layer 100, which can effectively simplify the manufacturing process of the heat insulation film 1, thereby effectively reducing the complexity of the heat insulation film 1.
[0041] It should be noted that in the accompanying drawings herein, they are only for showing the structural relationship and connection relationship of the inventive products of the present application, and do not thereby limit the specific structural dimensions of the inventive products of the present application.
[0042] The above are only the embodiments of the present invention, and do not thereby limit the patent scope of the present invention. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.
Claims
1. A thermal insulation film, characterized in that: The thermal insulation film comprises: A base layer, having a first side and a second side arranged opposite to each other, wherein the first side is used for connecting a heat dissipation element to be cooled; A light adjustment layer, disposed on the second side of the base layer; A photocatalytic layer, disposed on a side of the light regulating layer away from the base layer, the photocatalytic layer having photocatalytic properties; Wherein, the light adjustment layer comprises a preset number of nano-adjustment layers stacked along the stacking direction from the base layer to the photocatalytic layer; The preset number of nano-adjustment layers at least includes a nano-adjustment layer with a first light refractive index and a nano-adjustment layer with a second light refractive index, and the first light refractive index is greater than or less than the second light refractive index.
2. The thermal insulation film according to claim 1, characterized in that: The preset number of layers is greater than or equal to 6 layers.
3. The thermal insulation film according to claim 1, characterized in that: The nano-adjustment layer includes a first nano-tantalum pentoxide layer and a nano-silicon dioxide layer which are sequentially stacked along the stacking direction.
4. The thermal insulation film according to claim 3, characterized in that: The preset number of layers is 6 layers. Along the stacking direction, the thickness of the first nano-tantalum pentoxide layer is set to 100nm~110nm, 190nm~200nm, 90nm~100nm, 90nm~100nm, 110nm~120nm, and 210nm~220nm in sequence; the thickness of the nano-silicon dioxide layer is set to 180nm~190nm, 160nm~170nm, 150nm~160nm, 160nm~170nm, 180nm~190nm, and 170nm~180nm in sequence.
5. The thermal insulation film according to claim 1, characterized in that: The photocatalytic layer includes a second nano-titanium dioxide layer.
6. The thermal insulation film according to claim 5, characterized in that: The ratio of the thickness of the second nano-titanium dioxide layer to the thickness of the light adjustment layer is between 0.59 and 0.
74.
7. The thermal insulation film according to claim 6, characterized in that: The thickness of the second nano-titanium dioxide layer is between 116 nm and 153 nm.
8. The thermal insulation film according to claim 1, characterized in that: The base layer includes a PET base layer or a glass base layer, and the thermal insulation film also includes a transparent adhesive layer, which is arranged on the first side and is used to bond the thermal insulation film to the heat dissipation component.
9. The thermal insulation film according to claim 8, characterized in that: The thickness of the transparent adhesive layer is between 6 μm and 11 μm.