Heat-insulating glass, skylight structure, automobile and preparation method

Abstract

The present application provides a heat-insulating glass, a skylight structure, a car and a preparation method. The heat-insulating glass includes a first heat-insulating layer, a diffuse reflection layer and a second heat-insulating layer arranged in sequence. By setting the first heat-insulating layer and the second heat-insulating layer, the infrared transmittance can be gradually reduced, and the infrared and ultraviolet regulation ability of the film can be improved, so as to gradually reduce the full-spectrum infrared transmittance and gradually improve the ultraviolet blocking rate. At the same time, by setting the diffuse reflection layer between the first heat-insulating layer and the second heat-insulating layer, it is helpful to reduce the visible light reflectance and glare effect, enhance infrared diffuse reflection, improve heat-insulating performance, and adjust the infrared absorption performance and the color of transmission and reflection of the heat-insulating glass.

Description

Technical Field

[0001] The present application relates to the field of glass technology, and in particular to a heat-insulating glass, a skylight structure, a car and a preparation method thereof. Background Art

[0002] With the rapid development of transportation such as automobiles, high-speed trains, and cruise ships, the requirements for glass insulation are getting higher and higher. When the infrared rays of sunlight enter the interior of the glass, the infrared heat has already passed through the glass, which requires air conditioning to cool down in advance to ensure the comfort of the space on the other side of the glass, and this operation will increase power consumption. Especially for new energy vehicles, in order to reduce the power consumption of air conditioning and increase battery life, how to better realize the heat insulation function of glass has become a focus issue that needs to be solved urgently.

[0003] The current heat insulation solutions basically adopt the method of film and sunshade, but the cost of film is relatively high. The common heat insulation film currently uses silver-based film materials. In application, silver-based film materials are easily oxidized and fail, and their processability is poor and the cost is high. Especially in automotive glass, most automotive glass has a 3D curved surface structure. At high temperatures, the film is prone to quality defects such as steam drums and then fail. Summary of the invention

[0004] The present application provides a heat-insulating glass, a skylight structure, a car and a preparation method to achieve a better heat-insulating effect.

[0005] The present application provides a heat-insulating glass, comprising:

[0006] substrate;

[0007] A first heat-insulating layer, disposed on one side of the substrate;

[0008] A diffuse reflection layer, arranged on a side of the first heat insulation layer away from the substrate;

[0009] The second heat-insulating layer is arranged on a side of the diffuse reflection layer away from the first heat-insulating layer.

[0010] In some embodiments, the diffuse reflection layer has a nanoscale columnar structure.

[0011] In some embodiments, the columnar structures are unevenly distributed.

[0012] In some embodiments, adjacent columnar structures have different heights and different diameters.

[0013] In some embodiments, the heat-insulating glass further includes an anti-reflection layer, and the anti-reflection layer is disposed on a side of the second heat-insulating layer away from the diffuse reflection layer.

[0014] In some embodiments, the insulating glass further comprises:

[0015] A first dielectric layer is located between the first thermal insulation layer and the substrate; and / or,

[0016] A second dielectric layer and a hardening layer, wherein the second dielectric layer is located on a side of the second thermal insulation layer away from the diffuse reflection layer, and the hardening layer is located on a side of the second dielectric layer away from the second thermal insulation layer.

[0017] The present application also provides a canopy structure, including a canopy frame; and the aforementioned heat-insulating glass, which is arranged on the canopy frame.

[0018] The present application also provides a car, comprising a car body; and the aforementioned heat-insulating glass, which is arranged on the car body.

[0019] The present application also provides a method for preparing insulating glass, including a diffuse reflection layer deposition step. In the diffuse reflection layer deposition step, different coating pressures are repeatedly applied to deposit and form the diffuse reflection layer.

[0020] In some embodiments, a first coating pressure and a second coating pressure are provided, the first coating pressure is greater than the second coating pressure, and in the diffuse reflection layer deposition step, the first coating pressure and the second coating pressure are alternately used for sputtering.

[0021] In some embodiments, the preparation method further includes depositing a first thermal insulation layer, a diffuse reflection layer and a second thermal insulation layer in sequence on the substrate, wherein the first thermal insulation layer, the diffuse reflection layer and the second thermal insulation layer are sequentially stacked on the substrate.

[0022] The present application has the following beneficial effects: The present application provides a heat-insulating glass, a skylight structure, a car and a preparation method. The heat-insulating glass includes a first heat-insulating layer, a diffuse reflection layer and a second heat-insulating layer arranged in sequence. By setting the first heat-insulating layer and the second heat-insulating layer, the infrared transmittance can be gradually reduced, and the infrared and ultraviolet regulation ability of the film can be improved, so as to gradually reduce the full-spectrum infrared transmittance and gradually increase the ultraviolet blocking rate. At the same time, by setting the diffuse reflection layer between the first heat-insulating layer and the second heat-insulating layer, it is helpful to reduce the visible light reflectance and glare effect, enhance infrared diffuse reflection, improve heat-insulating performance, and adjust the infrared absorption performance and the color of transmission and reflection of the heat-insulating glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic structural diagram of a heat-insulating glass is shown as an example.

[0025] Figure 2 The position and structural diagram of the diffuse reflection layer are exemplarily shown.

[0026] Figure 3 The structural schematic diagram of the second type of heat-insulating glass is shown as an example.

[0027] Figure 4 The structural schematic diagram of the third type of heat-insulating glass is shown as an example.

[0028] Figure 5 The structural schematic diagram of the fourth type of heat-insulating glass is shown as an example.

[0029] Figure 6 The structural schematic diagram of the fifth type of heat-insulating glass is shown as an example.

[0030] Description of the markings of the accompanying drawings: 100 - substrate; 200 - first thermal insulation layer; 300 - diffuse reflection layer; 400 - second thermal insulation layer; 500 - anti-reflection layer; 600 - hardening layer; 700 - first dielectric layer; 800 - second dielectric layer. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0033] The present application provides a heat-insulating glass, a skylight structure, a car and a preparation method, which are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0034] The embodiment of the present application provides a heat-insulating glass. Figure 1 , which includes a substrate 100, a first heat-insulating layer 200 disposed on one side of the substrate 100, a diffuse reflection layer 300 disposed on a side of the first heat-insulating layer 200 away from the substrate 100, and a second heat-insulating layer 400 disposed on a side of the diffuse reflection layer 300 away from the first heat-insulating layer 200. Exemplarily, the substrate 100, the first heat-insulating layer 200, the diffuse reflection layer 300, and the second heat-insulating layer 400 may be disposed in sequence to constitute the heat-insulating glass.

[0035] Here, the substrate 100 may be a flat substrate or a curved substrate, and usually the substrate 100 is made of a transparent material. The substrate 100 may be made of glass, organic glass, or PET / PC / PMMA / PI or other materials.

[0036] The first heat-insulating layer 200 has the function of reflecting infrared rays and ultraviolet rays, which helps to reduce the penetration of infrared rays and achieve a certain heat-insulating effect.

[0037] Exemplarily, the material of the first thermal insulation layer 200 may be one or more of tungsten and tungsten oxide (W&WOx), silver (Ag), gold (Au), palladium (Ba), silver-gold alloy, silver-palladium alloy, vanadium and vanadium tungsten oxide (V&VOx), iridium manganate, titanium (Ti), nickel (Ni), chromium (Cr), titanium-nickel alloy, iron-chromium alloy, etc. For example, in the case where a high light transmittance and good thermal insulation performance are required, gold, silver, tungsten or nickel-containing materials may be used. If the light transmittance requirement is relatively low, a mixture of metals and metal oxides may be used as the material of the first thermal insulation layer 200.

[0038] It can be understood that the use of multiple materials in the embodiments of the present application refers to the provision of a plurality of film layers stacked in sequence, each of which uses a selected material. For example, the material of the first thermal insulation layer 200 is selected from tungsten oxide and nickel, and the first thermal insulation layer 200 includes a film layer made of tungsten oxide and a film layer made of nickel, and the two film layers are arranged in sequence, and the order can be selected as needed.

[0039] The diffuse reflection layer 300 can increase the multi-angle reflection of light between the first insulation layer 200 and the second insulation layer 400 and reduce the infrared reflection at vertical angles, thereby enhancing the absorption specific surface area and insulation efficiency of the first insulation layer 200 and the second insulation layer 400.

[0040] Exemplarily, the material of the diffuse reflection layer 300 may be one or more of indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and fluorine-doped tin oxide (FTO).

[0041] Similar to the first heat insulation layer 200, the second heat insulation layer 400 also has the function of reflecting infrared and ultraviolet rays, which helps to reduce the penetration of infrared rays and achieve a certain heat insulation effect. In addition, the sequential arrangement of the first heat insulation layer 200, the diffuse reflection layer 300 and the second heat insulation layer 400 helps to enhance the reflection effect of light and further increase the heat insulation effect.

[0042] Exemplarily, the material of the second thermal insulation layer 400 may be one or more of tungsten and tungsten oxide (W&WOx), silver (Ag), gold (Au), Ba-palladium, silver-gold alloy, silver-palladium alloy, vanadium and vanadium tungsten oxide (V&VOx), iridium manganate, titanium (Ti), nickel (Ni), chromium (Cr), titanium-nickel alloy, iron-chromium alloy, etc. Of course, it is understandable that the materials of the first thermal insulation layer 200 and the second thermal insulation layer 400 may be the same or different.

[0043] Here, in the heat-insulating glass provided in the embodiment of the present application, the provision of the diffuse reflection layer 300 helps to solve the glare problem caused by direct reflection of light and can also reduce light pollution.

[0044] For example, when the heat-insulating glass is applied to mobile devices such as cars, the safety impact of light reflection on oncoming vehicles can be reduced during the driving of the mobile device. At the same time, the diffuse reflection layer 300 also helps to reduce reflection inside the car and reduce the reflectivity of visible light inside the car.

[0045] It can be seen that the insulating glass provided in the embodiment of the present application, through the provision of the first insulating layer 200, the diffuse reflection layer 300 and the second insulating layer 400, helps to increase infrared absorption, form multi-light path absorption and reflection, and thus effectively improve the infrared insulation performance.

[0046] In addition, the embodiment of the present application defines that the diffuse reflection layer 300 is located between the first thermal insulation layer 200 and the second thermal insulation layer 400, and this setting takes into account the process of optical matching and fitting. If the order is changed, for example, the first thermal insulation layer 200 and the second thermal insulation layer 400 are set first and then the diffuse reflection layer 300 is set, it will cause the transmittance to be too low and the thermal insulation effect is not ideal. However, in the embodiment of the present application, the diffuse reflection layer 300 is set between the first thermal insulation layer 200 and the second thermal insulation layer 400, so that the infrared heat is reflected and refracted multiple times and is fully reflected and absorbed, thereby improving the thermal insulation performance.

[0047] In some embodiments, the substrate 100 is a curved substrate 100, that is, the substrate 100 has a certain curvature. In this case, the provision of the diffuse reflection layer 300 also helps to improve the color uniformity and color difference problems caused by the curvature, which reduces direct reflection and makes the color reflectivity lower, thereby making the color of the insulating glass more uniform at multiple angles.

[0048] In some embodiments, see Figure 2 , the diffuse reflection layer 300 has a nanometer-scale columnar structure. Exemplarily, when observed along the height direction of the columnar structure, the columnar structure has a roughly circular cross-section, the diameter of the cross-section ranges from about 2 to 10 nm, and the height of the columnar structure ranges from about 5 to 20 nm. Of course, in actual application, due to various reasons such as process errors, the parameter size of the columnar structure may slightly exceed this range, but it still falls within the protection scope of this application.

[0049] In addition to the diffuse reflection function, the diffuse reflection layer 300 also has the function of absorbing ultraviolet light (190nm-400nm) and far infrared light (1100nm-3300nm). The material selection of the diffuse reflection layer 300 helps to improve its ultraviolet light absorption function, and the columnar structure can also increase the specific surface area. Through multiple reflections of the columnar structure, the infrared energy can be better absorbed.

[0050] In some embodiments, the columnar structures are unevenly distributed. For example, adjacent columnar structures have different heights and different diameters.

[0051] Exemplarily, the axis of the columnar structure is parallel to the plane of the surface of the substrate 100. It is understandable that the axes of the various columnar structures may be parallel or intersecting. Exemplarily, among the plurality of columnar structures, there are at least two columnar structures whose axes are not parallel. Of course, in other embodiments, the axis of the columnar structure may also be inclined at an angle relative to the surface of the substrate 100. The unevenly arranged columnar structures help to increase the number of reflections to better absorb infrared energy.

[0052] Exemplarily, the upper surfaces of the columnar structures are connected so that the diffuse reflection layer 300 has a continuous wavy surface.

[0053] In some embodiments, see Figure 3 The heat-insulating glass is further provided with an anti-reflection layer 500, which is arranged on a side of the second heat-insulating layer 400 away from the diffuse reflection layer 300. The anti-reflection layer 500 helps to reduce the visible light reflectivity of the second heat-insulating layer 400. Exemplarily, the number of anti-reflection layers 500 is at least one.

[0054] Exemplarily, the material of the anti-reflection layer 500 is one or more of silicon oxide (SiOx), molybdenum oxide (MoOx), niobium oxide (NbOx), titanium oxide (TiOx), tantalum oxide (TaOx), and tin oxide (SnOx).

[0055] In some embodiments, the insulating glass is further provided with a first dielectric layer 700, and the first dielectric layer 700 is located between the substrate 100 and the first insulating layer 200. The first dielectric layer 700 helps to increase the adhesion between the substrate 100 and the first insulating layer 200.

[0056] Exemplarily, the material of the first dielectric layer 700 can be one or more of silicon oxide / silicon nitride / silicon oxynitride (SiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), zinc gallium oxide (GZO), zinc indium gallium oxide (IGZO), fluorine-doped tin oxide (FTO), niobium oxide (NbOx), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), tin oxide (SnOx), tungsten oxide (WOx), and titanium oxide (TiOx).

[0057] In some embodiments, see Figure 6 , the insulating glass is also provided with a second dielectric layer 800 and a hardened layer 600, the second dielectric layer 800 is located on the side of the second insulating layer 400 away from the diffuse reflection layer 300, and the hardened layer 600 is located on the side of the second dielectric layer 800 away from the second insulating layer 400. The second dielectric layer 800 is used to improve the adhesion between the second dielectric layer 800 and the hardened layer 600 and form a water vapor barrier, and the hardened layer 600 is used to improve the hardness and scratch resistance of the insulating glass. For example, the second insulating layer 400, the second dielectric layer 800, and the hardened layer 600 are arranged in sequence. For another example, in an embodiment in which an anti-reflection layer 500 is provided, the second insulating layer 400, the anti-reflection layer 500, the second dielectric layer 800, and the hardened layer 600 are arranged in sequence. Of course, in some embodiments, only the hardened layer 600 may be provided without the second dielectric layer 800.

[0058] Exemplarily, the material of the second dielectric layer 800 may be one or more of silicon oxide / silicon nitride / silicon oxynitride (SiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), zinc gallium oxide (GZO), zinc indium gallium oxide (IGZO), fluorine-doped tin oxide (FTO), niobium oxide (NbOx), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), tin oxide (SnOx), tungsten oxide (WOx), and titanium oxide (TiOx). The material of the second dielectric layer 800 may be the same as or different from that of the first dielectric layer 700.

[0059] Exemplarily, the material of the hardened layer 600 may be one or more of zirconium oxide (ZrOx), tungsten oxide (WOx), nickel chromium (NiCr), silicon nitride (SiNx), and aluminum oxide (AlOx).

[0060] Accordingly, the embodiment of the present application also provides a canopy structure, which can be applied to transportation equipment such as cars, trains, ships, etc. Of course, the canopy structure can also be set on fixed facilities.

[0061] The canopy structure includes a canopy frame and the heat-insulating glass provided in the embodiment of the present application, and the heat-insulating glass is arranged on the canopy frame. The canopy frame can be used to be installed on traffic equipment or fixed facilities, and of course the canopy frame can also be integrally formed with the traffic equipment or fixed facilities.

[0062] Therefore, the canopy structure can provide heat insulation effect for transportation equipment or fixed facilities.

[0063] Accordingly, an embodiment of the present application further provides a car, which includes a car body and the heat-insulating glass provided in the embodiment of the present application, and the heat-insulating glass is arranged on the car body. For example, the heat-insulating glass can be used as a windshield on the car body, or as a canopy glass on the top of the car body.

[0064] The use of heat-insulating glass in automobiles can help improve heat-insulating performance, adjust infrared absorption performance, and slow down the increase in temperature inside the car when the temperature outside the car is high. It also helps to reduce visible light reflectivity and glare effects to prevent impact on oncoming vehicles.

[0065] In addition, it should be mentioned that due to the excellent heat insulation performance of the heat-insulating glass, the power consumption of the vehicle air conditioner can be reduced, thereby improving the battery life of the vehicle battery that powers the vehicle air conditioner. Especially when the vehicle is a new energy vehicle, it can effectively improve the battery life of the new energy vehicle and improve the problem of low mileage of the new energy vehicle.

[0066] Accordingly, an embodiment of the present application further provides a method for preparing insulating glass, which includes a step of forming a diffuse reflection layer 300. In the step of forming the diffuse reflection layer 300, the diffuse reflection layer 300 is deposited and formed by adjusting the coating pressure and the sputtering power.

[0067] Exemplarily, in the step of depositing the diffuse reflection layer 300 , different coating pressures are repeatedly applied to deposit and form the diffuse reflection layer 300 .

[0068] For example, a first coating pressure and a second coating pressure are provided, the first coating pressure is greater than the second coating pressure, and in the step of depositing the diffuse reflection layer 300, the first coating pressure and the second coating pressure are alternately used for sputtering. When the first coating pressure is used, a first coating power is provided; when the second coating pressure is used, a second coating power is provided, and the first coating power is greater than the second coating power. A columnar structure is formed by mixing and superimposing high power and high pressure and low power and low pressure during the coating process.

[0069] In some embodiments, localized plasma may be further used to deposit and form the diffuse reflection layer 300. Exemplarily, based on the aforementioned embodiment of repeatedly applying different coating pressures, the target is fixed by N magnets and S magnets, and an Ar / O2 mixed gas, an exhaust channel, and a shielding cover surrounding the target are sequentially arranged from the inside to the outside of the periphery of the target, thereby forming the deposition of the diffuse reflection layer 300.

[0070] This embodiment generates a localized oxidation plasma field through the setting of Ar / O2 mixed gas, exhaust channel and shielding cover, ensuring that the oxidation reaction only occurs in the shielding cover, the plasma is confined to the sputtering area, and there is no plasma outside the shielding cover, thereby avoiding secondary oxidation of the deposited film outside the sputtering area.

[0071] In some embodiments, the substrate 100 is a curved substrate 100 . During deposition sputtering, the curvature of the substrate 100 is tested, and the distances between the N magnet and the S magnet and the position to be deposited are adjusted according to the test results of the curvature.

[0072] For example, the curvature of the glass is tested by optical testing and other methods, and then compared by logarithmic model, and then the distance between the coated magnet and the glass is adjusted online to ensure the uniformity of the coating.

[0073] At present, the general process of coating is to first coat the flat surface, and then use a high-temperature molding furnace to press the coated glass at high temperature to form a curved glass. In this way, the film layer of the flat coating must be sintered at a temperature of up to 680-750 degrees, and then the coated glass must be pressed at high temperature by a mold to form a curved shape. The film layer of the coating must be able to undergo high-temperature calcination and contact the mold under a high-temperature environment to form various curved shapes. This embodiment uses direct coating on the curved substrate 100, which can avoid the step of high-temperature pressing, which not only reduces costs, but also helps to ensure the molding quality of the glass.

[0074] In some embodiments, the film uniformity optimization and color uniformity optimization are optimized by online adjustment of pressure and adjustable local adjustable baffles.

[0075] Here, online adjustment of pressure refers to setting up a balancer for pressure control, detecting the pressure in the sputtering area in real time through a sensor, and adjusting the gas flow in real time according to changes in the pressure detection value. For example, when the pressure is lower than the set pressure reference value, the flow of the doping gas is increased to increase the pressure.

[0076] Adjustment through an adjustable local adjustable baffle means that the size of the gas channel is adjusted through a movable baffle. The smaller the gas channel, the faster the gas flow rate and the more gas is retained. Of course, in other embodiments, the size of the gas channel can also be adjusted by other means, such as through an adjustable valve, etc., and the examples in this embodiment do not constitute an undue limitation thereto.

[0077] Here, according to the adjustment of pressure and / or the adjustment of the size of the gas channel, the local pressure during deposition sputtering can be adjusted, the degree of sputtering oxidation can be controlled, and the thickness of the film formed by deposition can be adjusted. In particular, the pressure during deposition can be controlled by adjusting the pressure online, so that the pressure fluctuation becomes smaller, thereby improving the quality of film deposition.

[0078] In the embodiment using the curved substrate 100, the current general process is to first coat the plane, and then press the coated glass at high temperature in a high temperature molding furnace. In this way, the film layer of the flat coating must be sintered at a temperature of up to 680-750 degrees, and then the coated glass must be pressed at high temperature in a mold to form a curved surface. In this way, the film layer of the coating must be able to undergo high-temperature calcination and contact the mold in a high-temperature environment to form various curved shapes.

[0079] In some embodiments, the preparation method includes the following steps: forming a first dielectric layer 700, a first thermal insulation layer 200, a diffuse reflection layer 300, a second thermal insulation layer 400, an anti-reflection layer 500, a second dielectric layer 800 and a hardening layer 600 in sequence on a substrate 100; the first dielectric layer 700, the first thermal insulation layer 200, the diffuse reflection layer 300, the second thermal insulation layer 400, the anti-reflection layer 500, the second dielectric layer 800 and the hardening layer 600 are sequentially stacked on the substrate 100.

[0080] Exemplarily, the preparation method specifically includes the following steps S1 to S7.

[0081] S1. Step of forming the first dielectric layer 700 .

[0082] Exemplarily, the first dielectric layer 700 is deposited on the substrate 100 by vacuum coating, evaporation coating, etc. The thickness of the first dielectric layer 700 is 3 to 50 nm.

[0083] The material of the first dielectric layer 700 can be selected from one or more of silicon oxide / silicon nitride / silicon oxynitride (SiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), zinc gallium oxide (GZO), zinc indium gallium oxide (IGZO), fluorine-doped tin oxide (FTO), niobium oxide (NbOx), ZnSnOx, ZnOx, SnOx, tungsten oxide (WOx), and titanium oxide (TiOx).

[0084] The first dielectric layer 700 helps to increase the surface adhesion between the substrate 100 and subsequent film layers.

[0085] S2. Step of forming the first heat insulating layer 200.

[0086] The first thermal insulation layer 200 is deposited on the first dielectric film layer by vacuum coating, evaporation coating or other methods. The thickness of the first thermal insulation layer 200 is 5 to 500 nm.

[0087] The material of the first thermal insulation layer 200 can be selected from one or more of tungsten and tungsten oxide (W&WOx), silver, gold, palladium, silver-gold alloy, silver-palladium alloy, vanadium and vanadium tungsten oxide (V&VOx), iridium manganate, titanium (Ti), nickel (Ni), chromium, titanium-nickel alloy, iron-chromium alloy and the like.

[0088] S3. Step of forming the diffuse reflection layer 300.

[0089] The diffuse reflection layer 300 is deposited on the first thermal insulation layer 200 by vacuum coating, evaporation coating, etc., and the thickness of the diffuse reflection layer 300 is 10 to 200 nm. By adjusting the coating pressure and / or sputtering power, a diffuse reflection film layer with surface roughness and columnar structure can be achieved. In this embodiment, by adjusting the coating process, the film particle size of the film becomes larger, and the film on the glass surface has a certain roughness.

[0090] The material of the diffuse reflection layer 300 may be one or more selected from indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc tin oxide (ZnSnOx), zinc oxide (ZnOx), and fluorine-doped tin oxide (FTO).

[0091] S4. Step of forming the second heat insulation layer 400.

[0092] The second heat-insulating layer 400 is deposited on the diffuse reflection layer 300 by vacuum coating, evaporation coating or other methods. The thickness of the second heat-insulating layer 400 is 5 to 500 nm.

[0093] The material of the second thermal insulation layer 400 can be selected from one or more of tungsten and tungsten oxide (W&WOx), silver, gold, palladium, silver-gold alloy, silver-palladium alloy, vanadium and vanadium tungsten oxide (V&VOx), iridium manganate, titanium (Ti), nickel (Ni), chromium, titanium-nickel alloy, iron-chromium alloy and the like.

[0094] S5. Step of forming the anti-reflection layer 500.

[0095] The anti-reflection layer 500 is deposited on the second thermal insulation layer 400 by vacuum coating, evaporation coating or other methods. The thickness of the anti-reflection layer 500 is 30 to 550 nm.

[0096] The material of the anti-reflection layer 500 may be selected from one or more of silicon oxide (SiOx), molybdenum oxide (MoOx), niobium oxide (NbOx), titanium oxide (TiOx), tantalum oxide (TaOx), and tin oxide (SnOx).

[0097] The anti-reflection layer 500 can effectively reduce the reflectivity of the surface of the heat-insulating glass, for example, to below 9%.

[0098] For example, a multi-layer anti-reflection layer 500 may be further formed to further reduce the reflectivity, for example, to about 4%.

[0099] S6. Step of forming the second dielectric layer 800 .

[0100] The second dielectric layer 800 is deposited on the anti-reflection layer 500 by vacuum coating, evaporation coating or other methods. The thickness of the second dielectric layer 800 is 3 to 50 nm.

[0101] The material of the second dielectric layer 800 can be selected from one or more of silicon oxide / silicon nitride / silicon oxynitride (SiNOx), indium tin oxide (ITO), aluminum zinc oxide (AZO), zinc boron oxide (BZO), zinc gallium oxide (GZO), zinc indium gallium oxide (IGZO), fluorine-doped tin oxide (FTO), niobium oxide (NbOx), ZnSnOx, ZnOx, SnOx, tungsten oxide (WOx), and titanium oxide (TiOx).

[0102] The second dielectric layer 800 can be provided to increase the adhesion between the upper and lower film surfaces.

[0103] S7. Step of forming the hardened layer 600.

[0104] The hardening layer 600 is formed on the anti-reflection layer by vacuum coating, evaporation coating or other methods, and the thickness of the hardening layer 600 is 15 to 200 nm.

[0105] The material of the hardened layer 600 may be selected from one or more of zirconium oxide (ZrOx), tungsten oxide (WOx), nickel chromium (NiCr), silicon oxide (SiOx), and aluminum oxide (AlOx).

[0106] By setting the hardened layer 600, the surface hardness can reach above 8H, which can meet the wear resistance standard of conventional products, and also meet the acid, alkali and boiling water resistance test standards.

[0107] Among them, one or more steps of S1, S5, S6 and S7 may not be implemented, and the examples in this embodiment do not constitute an undue limitation thereto.

[0108] In some embodiments, the preparation method includes the following steps: a first thermal insulation layer 200, a diffuse reflection layer 300, a second thermal insulation layer 400, an anti-reflection layer 500 and a hardening layer 600 are sequentially formed on a substrate 100; the first thermal insulation layer 200, the diffuse reflection layer 300, the second thermal insulation layer 400, the anti-reflection layer 500 and the hardening layer 600 are sequentially stacked on the substrate 100.

[0109] In some embodiments, the preparation method includes the following steps: forming a first thermal insulation layer 200, a diffuse reflection layer 300, and a second thermal insulation layer 400 on a substrate 100 in sequence; the first thermal insulation layer 200, the diffuse reflection layer 300, and the second thermal insulation layer 400 are stacked in sequence on the substrate 100.

[0110] In some embodiments, the preparation method includes the following steps: forming a first thermal insulation layer 200, a diffuse reflection layer 300, a second thermal insulation layer 400, and an anti-reflection layer 500 on a substrate 100 in sequence; the first thermal insulation layer 200, the diffuse reflection layer 300, the second thermal insulation layer 400, and the anti-reflection layer 500 are stacked in sequence on the substrate 100.

[0111] Application Example 1

[0112] See also Figure 1 , a heat-insulating glass is provided, which includes a substrate 100 and a first heat-insulating layer 200 , a diffuse reflection layer 300 , and a second heat-insulating layer 400 sequentially stacked on the substrate 100 .

[0113] The first heat-insulating layer 200 and the second heat-insulating layer 400 are provided to gradually reduce the infrared transmittance and improve the ability to control the ultraviolet light. For example, the infrared transmittance can be gradually reduced to 0.03% and the ultraviolet blocking rate can be increased to 99.999%, but this does not constitute an improper restriction on the present application.

[0114] By setting the diffuse reflection layer 300 between the first thermal insulation layer 200 and the second thermal insulation layer 400, the visible light reflectivity and glare effect are reduced, the infrared diffuse reflection is enhanced, and the infrared absorption performance is adjusted, thereby improving the thermal insulation performance and helping to adjust the transmission and reflection colors of the insulating glass.

[0115] Application Example 2

[0116] See also Figure 3 , a heat-insulating glass is provided, which includes a substrate 100 and a first heat-insulating layer 200 , a diffuse reflection layer 300 , a second heat-insulating layer 400 and an anti-reflection layer 500 which are sequentially stacked on the substrate 100 .

[0117] The provision of the anti-reflection layer 500 helps to reduce the reflectivity of each film layer.

[0118] Application Example 3

[0119] See also Figure 4 , a heat-insulating glass is provided, which includes a substrate 100 and a first heat-insulating layer 200 , a diffuse reflection layer 300 , a second heat-insulating layer 400 and a hardening layer 600 which are sequentially stacked on the substrate 100 .

[0120] Through this arrangement, the thermal insulation stability at high temperatures (e.g., 600° or higher) can be ensured while meeting the performance requirements of wear resistance, acid and alkali resistance, and boiling water resistance.

[0121] Application Example 4

[0122] See also Figure 5 , a heat-insulating glass is provided, which includes a substrate 100 and a first heat-insulating layer 200 , a diffuse reflection layer 300 , a second heat-insulating layer 400 , an anti-reflection layer 500 and a hardening layer 600 which are sequentially stacked on the substrate 100 .

[0123] Application Example 5

[0124] See also Figure 6 A heat-insulating glass is provided, which includes a substrate 100 and a first dielectric layer 700, a first heat-insulating layer 200, a diffuse reflection layer 300, a second heat-insulating layer 400, an anti-reflection layer 500, a second dielectric layer 800 and a hardening layer 600 which are sequentially stacked on the substrate 100.

[0125] By introducing the first dielectric layer 700 and the second dielectric layer 800 into the structure, it helps to improve the adhesion between the glass substrate 100 and the film layer, and between the film layers, so as to meet the requirements of tests such as tension, grid, acid and alkali resistance. The characteristics of the diffuse reflection layer 300 help to improve the reflection and absorption performance of infrared rays. By sequentially arranging the first heat insulation layer 200, the diffuse reflection layer 300 and the second heat insulation layer 400, the entire infrared transmittance is greatly reduced. By arranging the anti-reflection layer 500 and the hardening layer 600, the visible light reflectivity can be reduced, illustratively, it can be reduced to 4% or less. At the same time, the use performance of the insulating glass such as scratch resistance, storage, water vapor resistance, cleaning and wear resistance is greatly improved.

[0126] It can be understood that the meanings of the terms in the embodiments of the present application are the same. For the content not described in detail in a certain embodiment, the specific implementation details can refer to the descriptions in other embodiments. The example descriptions and technical effects shown in the aforementioned embodiments can be implemented accordingly. For the repeated parts, the present application specification will not go into details.

[0127] The above is a detailed introduction to the insulating glass, skylight structure, automobile and preparation method provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat-insulating glass, characterized in that: include, substrate; A first heat-insulating layer, disposed on one side of the substrate; A diffuse reflection layer, arranged on a side of the first heat insulation layer away from the substrate; The second heat-insulating layer is arranged on a side of the diffuse reflection layer away from the first heat-insulating layer.

2. The heat-insulating glass according to claim 1, characterized in that: The diffuse reflection layer has a nanometer-scale columnar structure.

3. The heat-insulating glass according to claim 2, characterized in that: The columnar structures are distributed unevenly.

4. The heat-insulating glass according to claim 3, characterized in that: The adjacent columnar structures have different heights and different diameters.

5. The heat-insulating glass according to claim 1, characterized in that: It also includes an anti-reflection layer, which is arranged on a side of the second heat insulation layer away from the diffuse reflection layer.

6. The heat-insulating glass according to claim 1, characterized in that: Also includes, A first dielectric layer is located between the first thermal insulation layer and the substrate; and / or, A second dielectric layer and a hardening layer, wherein the second dielectric layer is located on a side of the second thermal insulation layer away from the diffuse reflection layer, and the hardening layer is located on a side of the second dielectric layer away from the second thermal insulation layer.

7. A canopy structure, characterized in that: include, Canopy frame; The heat-insulating glass according to any one of claims 1 to 6 is arranged on the canopy frame.

8. A car, characterized in that: include, Car body; The heat insulating glass according to any one of claims 1 to 6 is arranged on the automobile body.

9. A method for preparing heat-insulating glass, characterized in that: The method comprises a diffuse reflection layer deposition step, in which different coating pressures are repeatedly applied to deposit and form the diffuse reflection layer.

10. The method for preparing heat-insulating glass according to claim 9, characterized in that: A first coating pressure and a second coating pressure are provided, wherein the first coating pressure is greater than the second coating pressure, and in the diffuse reflection layer deposition step, the first coating pressure and the second coating pressure are alternately used for sputtering.

11. The method for preparing heat-insulating glass according to claim 9, characterized in that: The preparation method further includes depositing a first heat insulation layer, a diffuse reflection layer and a second heat insulation layer on a substrate in sequence, wherein the first heat insulation layer, the diffuse reflection layer and the second heat insulation layer are stacked in sequence on the substrate.

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