Four-silver glass and preparation method thereof
By adopting a hierarchical structure of multi-layer silver functional layer, AZO metal protective layer and composite dielectric layer in the glass, the problem of green color caused by oxidation of silver layer in the prior art is solved, and good sunshade performance and transmission effect are achieved in single hollow glass.
Patent Information
- Application Number
- CN202510182673.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-05-27
AI Technical Summary
When the existing high-transparent single silver, double silver and triple silver LOW-E glasses improve the solar barrier performance, the oxidation of the silver layer leads to an increase in the nickel-chromium protective layer. The transmission color of the finished glass products is greener, which cannot meet the transmission effect of single hollow glass.
Using a hierarchical structure of four silver glass, from the base layer of the substrate SiNx to the SiNx protective layer, each layer is accumulated according to the layer thickness requirements through vacuum magnetron sputtering coating equipment, including multi-layer silver functional layer, AZO metal protective layer and composite dielectric layer, ensuring that the transmission effect is not affected by greening.
With a single hollow transmittance of 61% , the four-silver glass has a good sunshade coefficient, and the color of the transmission will not be green, effectively ensuring the transmission effect.
Smart Images
Figure CN120040094A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of glass, in particular to a quad-silver glass and a preparation method thereof. Background Art
[0002] As the demand for high-transmittance, low-emissivity glass in the current curtain wall market has gradually increased, when using single-insulating glass with a transmittance of 61%, single-silver, double-silver and triple-silver glass cannot meet the demand for solar energy blocking rate. Therefore, in order to improve the solar energy blocking performance, the existing high-transmittance single-silver, double-silver and triple-silver LOW-E glass usually continuously stacks silver layers until the required blocking effect is achieved. However, the silver layer is oxidized when it encounters oxygen, but this stacking method will cause the nickel-chromium protective layer of the silver layer to increase. The consequence is that the transmittance color of the finished glass will be too green. Therefore, when this kind of quadruple-silver glass is suitable for single-insulating glass, it cannot show its transmittance effect. Summary of the invention
[0003] In view of the problems in the prior art, the present invention provides a four-silver glass and a preparation method thereof. The technical solution adopted by the present invention to solve the technical problems is: a four-silver glass, wherein the hierarchical structure of the four-silver glass is, from bottom to top, a substrate SiNx base layer, a first functional layer, a first AZO metal protective layer, a first composite dielectric layer, a second functional layer, a second AZO metal protective layer, a second composite dielectric layer, a third functional layer, a third AZO metal protective layer, a third composite dielectric layer, a fourth functional layer, a fourth AZO metal protective layer and a SiNx protective layer, wherein the substrate SiNx base layer is the indoor surface, and the substrate SiNx base layer is plated on the surface of the glass substrate, the SiNx protective layer is the outdoor surface, and the first composite dielectric layer, the second composite dielectric layer and the third composite dielectric layer all include zinc tin oxide and zinc aluminum oxide.
[0004] Preferably, the substrate SiNx bottom layer comprises silicon nitride and zinc aluminum oxide, the total thickness of the substrate SiNx bottom layer is 30-40 nm, and the ratio of silicon nitride to zinc aluminum oxide in the substrate SiNx bottom layer is 3:7.
[0005] Preferably, the first functional layer, the second functional layer, the third functional layer and the fourth functional layer are all silver layers, the first functional layer has a thickness of 8-12nm, the second functional layer has a thickness of 12-16nm, the third functional layer has a thickness of 14-16nm, and the fourth functional layer has a thickness of 15-17nm.
[0006] Preferably, the thickness of the first AZO metal protective layer, the second AZO metal protective layer, the third AZO metal protective layer and the fourth AZO metal protective layer are all 6-12 nm.
[0007] Preferably, the total thickness of the first composite dielectric layer is 70-80 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the first composite dielectric layer is 6:4.
[0008] Preferably, the total thickness of the second composite dielectric layer is 60-70 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the second composite dielectric layer is 7:3.
[0009] Preferably, the total thickness of the third composite dielectric layer is 70-76 nm.
[0010] Preferably, the SiNx protective layer is silicon nitride, and the thickness of the SiNx protective layer is 20-35 nm.
[0011] Preferably, a method for preparing four-silver glass is characterized in that the surface of a glass substrate is cleaned, and a substrate SiNx base layer, a first functional layer, a first AZO metal protective layer, a first composite dielectric layer, a second functional layer, a second AZO metal protective layer, a second composite dielectric layer, a third functional layer, a third AZO metal protective layer, a third composite dielectric layer, a fourth functional layer, a fourth AZO metal protective layer and a SiNx protective layer are sequentially accumulated from top to bottom according to the layer thickness requirements through a vacuum magnetron sputtering coating device to obtain the four-silver glass.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: a non-steel four-silver glass structure is formed by a SiNx base layer, a first functional layer, a first AZO metal protective layer, a first composite dielectric layer, a second functional layer, a second AZO metal protective layer, a second composite dielectric layer, a third functional layer, a third AZO metal protective layer, a third composite dielectric layer, a fourth functional layer, a fourth AZO metal protective layer and a SiNx protective layer, so that when it is applied to a single insulating glass with a transmittance of 61%, it has a good shading coefficient, and at the same time the transmitted color will not appear greenish, effectively ensuring the transmittance effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0014] Figure 1 This is a hierarchical composition diagram of a four-silver glass according to the present invention.
[0015] In the figure: 1. substrate SiNx base layer; 2. first functional layer; 3. first AZO metal protection layer; 4. first composite dielectric layer; 5. second functional layer; 6. second AZO metal protection layer; 7. second composite dielectric layer; 8. third functional layer; 9. third AZO metal protection layer; 10. third composite dielectric layer; 11. fourth functional layer; 12. fourth AZO metal protection layer; 13. SiNx protection layer. DETAILED DESCRIPTION
[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0017] like Figure 1 As shown, the four-silver glass described in the present invention has a hierarchical structure of, from bottom to top, a substrate SiNx base layer 1, a first functional layer 2, a first AZO metal protective layer 3, a first composite dielectric layer 4, a second functional layer 5, a second AZO metal protective layer 6, a second composite dielectric layer 7, a third functional layer 8, a third AZO metal protective layer 9, a third composite dielectric layer 10, a fourth functional layer 11, a fourth AZO metal protective layer 12 and a SiNx protective layer 13, wherein the substrate SiNx base layer 1 is the indoor surface, and the substrate SiNx base layer 1 is plated on the surface of the glass substrate, the SiNx protective layer 13 is the outdoor surface, and the first composite dielectric layer 4, the second composite dielectric layer 7 and the third composite dielectric layer 10 all include zinc tin oxide and zinc aluminum oxide.
[0018] In an optional implementation of this embodiment, the substrate SiNx bottom layer 1 includes silicon nitride and zinc aluminum oxide, the total thickness of the substrate SiNx bottom layer 1 is 30-40nm, and the ratio of silicon nitride to zinc aluminum oxide in the substrate SiNx bottom layer 1 is 3:7.
[0019] In an optional implementation of this embodiment, the first functional layer 2, the second functional layer 5, the third functional layer 8 and the fourth functional layer 11 are all silver layers, the first functional layer 2 has a thickness of 8-12nm, the second functional layer 5 has a thickness of 12-16nm, the third functional layer 8 has a thickness of 14-16nm, and the fourth functional layer 11 has a thickness of 15-17nm.
[0020] In an optional implementation of this embodiment, the thickness of the first AZO metal protective layer 3, the second AZO metal protective layer 6, the third AZO metal protective layer 9 and the fourth AZO metal protective layer 12 are all 6-12 nm.
[0021] In an optional implementation of this embodiment, the total thickness of the first composite dielectric layer 4 is 70-80 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the first composite dielectric layer 4 is 6:4.
[0022] In an optional implementation manner of this embodiment, the total thickness of the second composite dielectric layer 7 is 60-70 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the second composite dielectric layer 7 is 7:3.
[0023] The total thickness of the third composite dielectric layer 10 is 70-76 nm.
[0024] The SiNx protective layer 13 is silicon nitride, and the thickness of the SiNx protective layer 13 is 20-35 nm.
[0025] The preparation method of quad-silver glass is as follows: clean the surface of the glass substrate, and accumulate the substrate SiNx bottom layer 1, the first functional layer 2, the first AZO metal protective layer 3, the first composite dielectric layer 4, the second functional layer 5, the second AZO metal protective layer 6, the second composite dielectric layer 7, the third functional layer 8, the third AZO metal protective layer 9, the third composite dielectric layer 10, the fourth functional layer 11, the fourth AZO metal protective layer 12 and the SiNx protective layer 13 in order from top to bottom according to the layer thickness requirements through a vacuum magnetron sputtering coating device to obtain quad-silver glass.
[0026] In an optional implementation of the present embodiment, a quad-silver glass is provided, wherein the hierarchical composition of the quad-silver glass is: a glass substrate, a substrate SiNx base layer 1 (35 nm), a first functional layer 2 (9 nm), a first AZO metal protective layer 3 (8 nm), a first composite dielectric layer 4 (75 nm), a second functional layer 5 (14 nm), a second AZO metal protective layer 6 (8 nm), a second composite dielectric layer 7 (65 nm), a third functional layer 8, (15 nm) a third AZO metal protective layer 9 (8 nm), a third composite dielectric layer 10 (73 nm), a fourth functional layer 11 (16 nm), a fourth AZO metal protective layer 12 (8 nm) and a SiNx protective layer 13 (27 nm).
[0027] The quad-silver glass obtained in this embodiment has a shading coefficient of 0.32 and a K value of 1.62 under a single hollow 61% transmittance, and the transmittance color does not have a green bias.
[0028] This embodiment Glass surface reflection color Y ≤6 L ≤30 a 1.0～2.5 b 9～-11
[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.
Claims
1. A quad-silver glass, characterized in that: The hierarchical structure of the four-silver glass comprises, from bottom to top, a substrate SiNx base layer (1), a first functional layer (2), a first AZO metal protective layer (3), a first composite dielectric layer (4), a second functional layer (5), a second AZO metal protective layer (6), a second composite dielectric layer (7), a third functional layer (8), a third AZO metal protective layer (9), a third composite dielectric layer (10), a fourth functional layer (11), a fourth AZO metal protective layer (12) and a SiNx protective layer (13), wherein the substrate SiNx base layer (1) is an indoor surface, and the substrate SiNx base layer (1) is plated on the surface of the glass substrate, the SiNx protective layer (13) is an outdoor surface, and the first composite dielectric layer (4), the second composite dielectric layer (7) and the third composite dielectric layer (10) all comprise zinc tin oxide and zinc aluminum oxide.
2. The quad-silver glass according to claim 1, characterized in that: The substrate SiNx bottom layer (1) comprises silicon nitride and zinc aluminum oxide, the total thickness of the substrate SiNx bottom layer (1) is 30-40 nm, and the ratio of silicon nitride to zinc aluminum oxide in the substrate SiNx bottom layer (1) is 3:
7.
3. The quad-silver glass according to claim 2, characterized in that: The first functional layer (2), the second functional layer (5), the third functional layer (8) and the fourth functional layer (11) are all silver layers. The thickness of the first functional layer (2) is 8-12 nm, the thickness of the second functional layer (5) is 12-16 nm, the thickness of the third functional layer (8) is 14-16 nm, and the thickness of the fourth functional layer (11) is 15-17 nm.
4. The quad-silver glass according to claim 3, characterized in that: The thickness of the first AZO metal protective layer (3), the second AZO metal protective layer (6), the third AZO metal protective layer (9) and the fourth AZO metal protective layer (12) are all 6-12 nm.
5. The quad-silver glass according to claim 4, characterized in that: The total thickness of the first composite dielectric layer (4) is 70-80 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the first composite dielectric layer (4) is 6:
4.
6. The quad-silver glass according to claim 1, characterized in that: The total thickness of the second composite dielectric layer (7) is 60-70 nm, and the ratio of zinc tin oxide to zinc aluminum oxide in the second composite dielectric layer (7) is 7:
3.
7. The quad-silver glass according to claim 1, characterized in that: The total thickness of the third composite dielectric layer (10) is 70-76 nm.
8. The quad-silver glass according to claim 1, characterized in that: The SiNx protective layer (13) is silicon nitride, and the thickness of the SiNx protective layer (13) is 20-35 nm.
9. A method for preparing quadruple silver glass according to any one of claims 1 to 8, characterized in that: The surface of the glass substrate is cleaned, and a SiNx base layer (1), a first functional layer (2), a first AZO metal protective layer (3), a first composite dielectric layer (4), a second functional layer (5), a second AZO metal protective layer (6), a second composite dielectric layer (7), a third functional layer (8), a third AZO metal protective layer (9), a third composite dielectric layer (10), a fourth functional layer (11), a fourth AZO metal protective layer (12), and a SiNx protective layer (13) are sequentially deposited from top to bottom according to layer thickness requirements through a vacuum magnetron sputtering coating device to obtain the four-silver glass.