Red three-silver-layer low-emissivity glass

Abstract

The invention relates to the technical field of magnetron sputtering coating, and provides red three-silver low-emissivity glass. Comprising a base layer composed of silicon nitride and aluminum zinc oxide, a first functional layer silver layer, a first protective layer composed of aluminum oxide, a first intermediate dielectric layer composed of tin zinc oxide and aluminum zinc oxide, a second functional layer silver layer, a copper functional layer composed of metal copper and a second protective layer composed of nickel-chromium alloy. The first middle dielectric layer is composed of zinc tin oxide and zinc aluminum oxide, the second middle dielectric layer is composed of zinc tin oxide and zinc aluminum oxide, the third functional layer is a silver layer, the third protective layer is composed of nickel-chromium alloy, the protective layer is composed of zinc aluminum oxide and silicon nitride, and the anti-oxidation layer is composed of silicon-aluminum pickaxe. By controlling the thickness proportion of the silver functional layer and the copper functional layer of the second functional layer and the component proportion and thickness parameters of the two middle dielectric layers, it is guaranteed that the glass surface, the film surface and the angle color of the product are reddish and colorless through transmission, the diversified color requirements of the building facade are met, and the building aesthetics value is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetron sputtering coating, and more specifically, to a red triple-silver low-emissivity glass. Background Art

[0002] Low-emissivity glass (Low-E glass), as a high-performance energy-saving building material, has been widely used in the construction field in recent years. Among them, triple-silver low-emissivity glass has become the preferred material for high-end building curtain walls and energy-saving doors and windows due to its excellent heat insulation performance and high visible light transmittance. Currently, triple-silver LOW-E products on the market mainly deposit multiple functional films on the glass surface through magnetron sputtering technology to form a composite structure with selective transmission characteristics, which can effectively block infrared radiation while maintaining good visible light transmittance. Such products are widely used in the exterior walls and window systems of commercial buildings, high-end residences, and public facilities, making important contributions to building energy conservation and improved comfort.

[0003] However, the existing triple-silver LOW-E products have obvious limitations in color performance. Most products present cold tones such as greenish, grayish, or bluish. Although this color characteristic can be applied in some modern architectural designs, with the increasing trend of diversified development of architectural aesthetics, the demand for the color of glass curtain walls by architects is also becoming increasingly diverse. Especially in architectural designs that pursue a warm and vibrant atmosphere, the cold-tone appearance of existing triple-silver LOW-E products is difficult to meet the design requirements. In addition, not only does the existing product present a cold tone in appearance, but its transmitted color also tends to be green, which will affect people's perception of the true color of external objects through the glass, reducing visual comfort and user experience. When observed from different angles, the color change of the existing product also lacks consistency and cannot achieve a unified color effect. Therefore, developing a triple-silver LOW-E glass with a red warm tone in the front color, film surface color, and 60° angular color deviation, while presenting a neutral colorless transmitted color, is of great significance for meeting the diversified design requirements of building facades, enhancing the architectural aesthetic value, and improving the user's visual experience. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a red triple-silver low-emissivity glass. By arranging a multi-layer film system structure composed of a silver layer, a copper layer, and an auxiliary layer on the glass substrate in a specific order, and precisely controlling the thickness ratio of the second functional layer silver to the copper functional layer and the component ratio of the two intermediate dielectric layers, the technical problems of the existing triple-silver LOW-E products with a single color tone, mostly cold tones, and a greenish transmitted color are successfully solved.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A red triple-silver low-emissivity glass, including a glass substrate, the glass surface and the film surface of the glass are red, and the transmitted color is neutral; the following layers are sequentially arranged on the glass substrate: a primer layer composed of silicon nitride and aluminum zinc oxide, a first functional layer silver layer, a first metal protection layer composed of aluminum oxide, a first intermediate dielectric layer composed of tin zinc oxide and aluminum zinc oxide, a second functional layer silver layer, a copper functional layer composed of metallic copper, a second metal protection layer composed of nickel-chromium alloy, a second intermediate dielectric layer composed of tin zinc oxide and aluminum zinc oxide, a third functional layer silver layer, a third metal protection layer composed of nickel-chromium alloy, a protection layer composed of aluminum zinc oxide and silicon nitride, and an antioxidant layer composed of silicon aluminum zirconium.

[0007] The red triple-silver low-emissivity glass of the present invention is composed of a glass substrate and a multi-layer film structure sequentially arranged thereon. The appearance of this glass product presents a unique red effect, the transmitted color is neutral, and it has excellent low-emissivity performance. It is mainly applied to the field of building energy conservation, can provide good heat insulation and heat preservation performance, and at the same time meet the aesthetic requirements of the building facade.

[0008] The red triple-silver low-emissivity glass of the present invention can adopt a 6+12A+6 insulating glass structure, where A represents the insulating layer, and the numbers represent the thickness (mm). This structure can not only meet the building energy conservation requirements but also ensure sufficient mechanical strength.

[0009] As a further scheme of the present invention, the film thickness of the primer layer is 25-35nm and it is composed of silicon nitride and aluminum zinc oxide.

[0010] As a further scheme of the present invention, the film thickness of the first functional layer is 10-13nm, the film thickness of the second functional layer is 7-10nm, the film thickness of the copper functional layer is 8-12nm, and the film thickness of the third functional layer is 13-18nm.

[0011] As a further scheme of the present invention, the film thickness of the first metal protection layer is 5-8nm and it is composed of aluminum oxide; the film thickness of the second metal protection layer is 0.4-1nm and it is composed of nickel-chromium alloy; the film thickness of the third metal protection layer is 0.4-1nm and it is composed of nickel-chromium alloy.

[0012] As a further scheme of the present invention, the film thickness of the first intermediate dielectric layer is 50-65nm and it is composed of tin zinc oxide and aluminum zinc oxide, and the component ratio is 7:3; the film thickness of the second intermediate dielectric layer is 75-85nm and it is composed of tin zinc oxide and aluminum zinc oxide, and the component ratio is 7:3.

[0013] The two intermediate dielectric layers are composed of the same tin zinc oxide and aluminum zinc oxide, and the component ratio is precisely controlled to be 7:3. This design enables light waves to produce specific reflection and transmission effects in the multi-layer film system, thereby achieving the target color parameters.

[0014] As a further solution of the present invention, the film thickness of the protective layer is 25 - 35 nm, which is composed of aluminum zinc oxide and silicon nitride, and the component ratio is 2:8.

[0015] As a further solution of the present invention, the film thickness of the antioxidant layer is 10 - 15 nm, which is composed of silicon aluminum zirconium.

[0016] As a further solution of the present invention, the a value of the glass surface reflection color is 3.5 to 4.5, the b value is -3.5 to -4, the a value of the transmitted color is 0 to 0.5, and the b value is 0 to 0.4. These parameters ensure the red appearance effect and neutral transmitted color characteristics of the product.

[0017] As a further solution of the present invention, each functional layer is sequentially deposited on the glass substrate by using a magnetron sputtering coating process, including:

[0018] Depositing a bottom layer composed of silicon nitride and aluminum zinc oxide on the glass substrate by using a magnetron sputtering coating process;

[0019] Depositing a first functional layer composed of a silver layer on the bottom layer by using a magnetron sputtering coating process;

[0020] Depositing a first metal protective layer composed of aluminum oxide on the first functional layer by using a magnetron sputtering coating process;

[0021] Depositing a first intermediate dielectric layer composed of zinc oxide tin and aluminum zinc oxide on the first metal protective layer by using a magnetron sputtering coating process;

[0022] Depositing a second functional layer composed of a silver layer on the first intermediate dielectric layer by using a magnetron sputtering coating process;

[0023] Depositing a copper functional layer composed of metallic copper on the second functional layer by using a magnetron sputtering coating process;

[0024] Depositing a second metal protective layer composed of nickel-chromium alloy on the copper functional layer by using a magnetron sputtering coating process;

[0025] Depositing a second intermediate dielectric layer composed of zinc oxide tin and aluminum zinc oxide on the second metal protective layer by using a magnetron sputtering coating process;

[0026] Depositing a third functional layer composed of a silver layer on the second intermediate dielectric layer by using a magnetron sputtering coating process;

[0027] Depositing a third metal protective layer composed of nickel-chromium alloy on the third functional layer by using a magnetron sputtering coating process;

[0028] Depositing a protective layer composed of aluminum zinc oxide and silicon nitride on the third metal protective layer by using a magnetron sputtering coating process;

[0029] An antioxidant layer composed of silicon, aluminum, and zirconium is deposited on the protective layer by means of a magnetron sputtering coating process. Compared with the prior art, the beneficial effects of a red triple-silver low-emissivity glass of the present invention are as follows:

[0030] Through an innovative design of a 12-layer film system structure, especially by introducing a copper functional layer into the triple-silver structure and precisely controlling the thickness ratio thereof to the second functional layer silver, and at the same time optimizing the component ratio and thickness parameters of the two intermediate dielectric layers, the glass exhibits a stable red appearance effect while achieving low-emissivity performance. Compared with the prior art, the present invention has significant advantages: Most of the existing triple-silver LOW-E products exhibit cool colors such as greenish, grayish, or bluish, and the transmitted color often tends to be greenish. However, the present invention not only achieves a consistent red warm color effect on the front side, the film side, and at different viewing angles, but more importantly, maintains a neutral transmitted color and does not change the actual color observed by people through the glass, thus solving the problem of greenish transmitted color in the prior art. In addition, the red triple-silver LOW-E glass of the present invention provides a richer color selection for the design of building facades while maintaining excellent heat insulation performance, meeting the requirements of the diversified development of building aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of a red triple-silver low-emissivity glass of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] A red triple-silver low-emissivity glass includes a glass substrate, wherein the glass surface and the film surface of the glass are red, and the transmitted color is a neutral color; the following are sequentially arranged on the glass substrate: an underlayer composed of silicon nitride and aluminum zinc oxide, a first functional layer silver layer, a first metal protective layer composed of aluminum oxide, a first intermediate dielectric layer composed of zinc oxide tin and aluminum zinc oxide, a second functional layer silver layer, a copper functional layer composed of metal copper, a second metal protective layer composed of nickel-chromium alloy, a second intermediate dielectric layer composed of zinc oxide tin and aluminum zinc oxide, a third functional layer silver layer, a third metal protective layer composed of nickel-chromium alloy, a protective layer composed of aluminum zinc oxide and silicon nitride, and an antioxidant layer composed of silicon, aluminum, and zirconium.

[0035] The red triple-silver low-emissivity glass of the present invention is composed of a glass substrate and a multi-layer film structure sequentially provided thereon. The appearance of this glass product presents a unique red effect, and the transmitted color is neutral. It has excellent low-emissivity performance and is mainly applied in the field of building energy conservation, providing good heat insulation and heat preservation performance, while meeting the aesthetic requirements of the building facade.

[0036] The red triple-silver low-emissivity glass of the present invention can adopt a 6+12A+6 insulating glass structure, where A represents the insulating layer and the numbers represent the thickness (mm). This structure can not only meet the building energy conservation requirements but also ensure sufficient mechanical strength.

[0037] In the embodiment of the present invention, the film thickness of the primer layer is 25-35nm and it is composed of silicon nitride and aluminum zinc oxide. This layer mainly plays a role in enhancing the adhesion between the film layer and the glass substrate and provides a flat growth basis for the subsequent functional layers.

[0038] In the embodiment of the present invention, the film thickness of the first functional layer is 10-13nm, the film thickness of the second functional layer is 7-10nm, the film thickness of the copper functional layer is 8-12nm, and the film thickness of the third functional layer is 13-18nm. The first functional layer mainly provides basic low-emissivity performance. The second functional layer, as an intermediate functional silver layer, together with other silver layers constitutes the core of the triple-silver structure. The third functional layer, as the outermost functional silver layer, has a larger film thickness and can provide stronger low-emissivity performance.

[0039] In the embodiment of the present invention, the film thickness of the first metal protection layer is 5-8nm and it is composed of aluminum oxide; the film thickness of the second metal protection layer is 0.4-1nm and it is composed of nickel-chromium alloy; the film thickness of the third metal protection layer is 0.4-1nm and it is composed of nickel-chromium alloy. The first metal protection layer is used to protect the silver layer from oxidation and extend the service life of the product. The second metal protection layer is used to protect the silver layer and the copper layer from oxidation. The third metal protection layer is used to protect the outermost silver layer from oxidation erosion.

[0040] In the embodiment of the present invention, the film thickness of the first intermediate dielectric layer is 50-65nm and it is composed of tin zinc oxide and aluminum zinc oxide with a component ratio of 7:3; the film thickness of the second intermediate dielectric layer is 75-85nm and it is composed of tin zinc oxide and aluminum zinc oxide with a component ratio of 7:3. The first intermediate dielectric layer not only plays an optical adjustment role but also can effectively isolate adjacent functional layers.

[0041] The two intermediate dielectric layers are composed of the same tin zinc oxide and aluminum zinc oxide, and the component ratio is precisely controlled to be 7:3. This design enables light waves to produce specific reflection and transmission effects in the multi-layer film system, thereby achieving the target color parameters.

[0042] In the embodiment of the present invention, the film thickness of the protective layer is 25 - 35 nm, which is composed of aluminum zinc oxide and silicon nitride, and the component ratio is 2:8.

[0043] In the embodiment of the present invention, the film thickness of the antioxidant layer is 10 - 15 nm, which is composed of silicon aluminum zirconium.

[0044] In the embodiment of the present invention, for the glass, the a value of the glass surface reflection color is 3.5 to 4.5, the b value is -3.5 to -4, the a value of the transmitted color is 0 to 0.5, and the b value is 0 to 0.4. These parameters ensure the red appearance effect and neutral transmitted color characteristics of the product.

[0045] After the glass in the embodiment of the present invention is made into a hollow glass with a structure of 6Cl ow-E + 12A + 6C, it has excellent optical performance indicators: the outer visible light reflectance is 12%, which means that when observed from the outside, 12% of the visible light is reflected by the glass, presenting a unique red appearance; the inner visible light reflectance is 9%, making the reflection feeling weaker when looking out from the inside, without affecting the visual comfort of indoor personnel; the visible light transmittance is 50%, ensuring sufficient indoor lighting effect, and at the same time, the transmitted color is close to neutral, not significantly changing the original color of indoor objects; the heat gain coefficient is only 0.26, also known as the solar heat gain coefficient (SHGC) or g value, indicating that only 26% of the solar thermal energy can pass through the glass into the room. This low value reflects the excellent heat insulation performance of the product, which can effectively reduce the building air-conditioning energy consumption in summer and achieve excellent energy-saving effects.

[0046] Example 2

[0047] A preparation method of a red triple-silver low-emissivity glass is to sequentially deposit each functional layer on a glass substrate by a magnetron sputtering coating process.

[0048] Using the magnetron sputtering coating process, a primer layer composed of silicon nitride and aluminum zinc oxide is deposited on the glass substrate, and the thickness of the primer layer is 30 nm.

[0049] Using the magnetron sputtering coating process, a first functional layer composed of a silver layer is deposited on the primer layer, and the thickness of the first functional layer is 12 nm.

[0050] Using the magnetron sputtering coating process, a first metal protective layer composed of aluminum oxide is deposited on the first functional layer, and the thickness of the first metal protective layer is 7 nm

[0051] Using the magnetron sputtering coating process, a first intermediate dielectric layer composed of zinc oxide tin and aluminum zinc oxide is deposited on the first metal protective layer. The component ratio of zinc oxide tin and aluminum zinc oxide in the first intermediate dielectric layer is 7:3, and the thickness of the first intermediate dielectric layer is 60 nm.

[0052] The second functional layer is formed by depositing a silver layer on the first intermediate dielectric layer using a magnetron sputtering coating process, and the thickness of the second functional layer is 9 nm.

[0053] The copper functional layer composed of metallic copper is deposited on the second functional layer using a magnetron sputtering coating process, and the thickness of the copper functional layer is 10 nm.

[0054] The second metal protection layer composed of nickel-chromium alloy is deposited on the copper functional layer using a magnetron sputtering coating process, and the thickness of the second protection layer is 0.7 nm.

[0055] The second intermediate dielectric layer composed of tin oxide zinc and aluminum oxide zinc is deposited on the second metal protection layer using a magnetron sputtering coating process. The component ratio of tin oxide zinc and aluminum oxide zinc in the second intermediate dielectric layer is 7:3, and the thickness of the second intermediate dielectric layer is 80 nm.

[0056] The third functional layer is formed by depositing a silver layer on the second intermediate dielectric layer using a magnetron sputtering coating process, and the thickness of the third functional layer is 15 nm.

[0057] The third metal protection layer composed of nickel-chromium alloy is deposited on the third functional layer using a magnetron sputtering coating process, and the thickness of the third metal protection layer is 0.7 nm.

[0058] The fourth protection layer composed of aluminum oxide zinc and silicon nitride is deposited on the third metal protection layer using a magnetron sputtering coating process. The component ratio of aluminum oxide zinc and silicon nitride in the fourth protection layer is 2:8, and the thickness of the fourth protection layer is 30 nm.

[0059] The antioxidant layer composed of silicon aluminum zirconium is deposited on the protection layer using a magnetron sputtering coating process, and the thickness of the antioxidant layer is 12 nm.

[0060] For the obtained product, the glass surface, film surface, angle color is slightly red, and the transmission is colorless. Among them, the a value of the glass surface reflection color is 4.0, and the b value is -3.8; the a value of the transmission color is 0.3, and the b value is -0.2. After being made into 6 + 12A + 6 insulating glass, the visible light reflectance on the outer side of the product is 12%, the visible light reflectance on the inner side is 9%, the visible light transmittance is 50%, and the heat transfer coefficient is only 0.26, which reflects the excellent heat insulation performance of the product, can effectively reduce the building air-conditioning energy consumption in summer, and achieve excellent energy-saving effects.

[0061] As mentioned above, it is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

[0062] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A red triple-silver low-emissivity glass, comprising a glass substrate, characterized in that: The glass surface and the film surface of the glass are red, and the transmitted color is neutral; the glass substrate is sequentially provided with: a base layer composed of silicon nitride and zinc aluminum oxide, a first functional layer silver layer, a first metal protective layer composed of aluminum oxide, a first intermediate dielectric layer composed of zinc tin oxide and zinc aluminum oxide, a second functional layer silver layer, a copper functional layer composed of metal copper, a second metal protective layer composed of nickel-chromium alloy, a second intermediate dielectric layer composed of zinc tin oxide and zinc aluminum oxide, a third functional layer silver layer, a third metal protective layer composed of nickel-chromium alloy, a protective layer composed of zinc aluminum oxide and silicon nitride, and an anti-oxidation layer composed of silicon aluminum pick.

2. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The film thickness of the primer layer is 25-35 nm, and the primer layer is composed of silicon nitride and zinc aluminum oxide.

3. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The thickness of the first functional layer is 10-13 nm, the thickness of the second functional layer is 7-10 nm, the thickness of the copper functional layer is 8-12 nm, and the thickness of the third functional layer is 13-18 nm.

4. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The first metal protective layer has a thickness of 5-8 nm and is composed of aluminum oxide; the second metal protective layer has a thickness of 0.4-1 nm and is composed of a nickel-chromium alloy; the third metal protective layer has a thickness of 0.4-1 nm and is composed of a nickel-chromium alloy.

5. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The first intermediate dielectric layer has a thickness of 50-65 nm and is composed of zinc tin oxide and zinc aluminum oxide, with a component ratio of 7:3; the second intermediate dielectric layer has a thickness of 75-85 nm and is composed of zinc tin oxide and zinc aluminum oxide, with a component ratio of 7:

3.

6. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The protective layer has a thickness of 25-35 nm and is composed of zinc aluminum oxide and silicon nitride, with a component ratio of 2:

8.

7. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The anti-oxidation layer has a thickness of 10-15 nm and is composed of silicon aluminum oxide.

8. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The glass surface reflection color a value of the glass is 3.5 to 4.5, the b value is -3.5 to -4, the transmission color a value is 0 to 0.5, and the b value is 0 to 0.

4.

9. The red triple-silver low-emissivity glass according to claim 1, characterized in that: The magnetron sputtering coating process is used to sequentially coat each functional layer on the glass substrate, including: A base layer composed of silicon nitride and zinc aluminum oxide is plated on the glass substrate by using a magnetron sputtering coating process; A first functional layer consisting of a silver layer is plated on the base layer by a magnetron sputtering coating process; Using a magnetron sputtering coating process to coat a first metal protective layer composed of aluminum oxide on the first functional layer; Using a magnetron sputtering coating process to plate a first intermediate dielectric layer consisting of zinc tin oxide and zinc aluminum oxide on the first metal protective layer; A second functional layer consisting of a silver layer is plated on the first intermediate dielectric layer by a magnetron sputtering coating process; Using a magnetron sputtering coating process to plate a copper functional layer composed of metallic copper on the second functional layer; Plating a second metal protective layer composed of a nickel-chromium alloy on the copper functional layer by using a magnetron sputtering coating process; A second intermediate dielectric layer composed of zinc tin oxide and zinc aluminum oxide is plated on the second metal protective layer by using a magnetron sputtering coating process; A third functional layer consisting of a silver layer is plated on the second intermediate dielectric layer by a magnetron sputtering coating process; Plating a third metal protective layer composed of a nickel-chromium alloy on the third functional layer by using a magnetron sputtering coating process; Plating a protective layer composed of zinc aluminum oxide and silicon nitride on the third metal protective layer by using a magnetron sputtering coating process; An anti-oxidation layer composed of silicon aluminum oxide is plated on the protective layer by utilizing a magnetron sputtering coating process.

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