A coated glass and a method for producing the same

Abstract

The application discloses a kind of coated glass and preparation method thereof, it is related to the technical field of coated glass for building, including first glass substrate, second glass substrate and appearance glass, the top of first glass substrate is provided with second glass substrate, and rough side surface is arranged between the side of gradient transition layer and the side of first glass substrate, second glass substrate.The coated glass and preparation method thereof, by setting multiple glasses, different functional films are plated on different glass surfaces, and then mutual bonding and side sealing are realized between the glasses by rubber sealing pad, so that the functional film is in the sealed space between the glasses to prevent exposure and contact with the outside world, thereby avoiding film layer oxidation blackening and corrosion, and by pre-deposition on the glass surface in the form of transition deposition, a gradient transition layer adapted to the material of the functional film is deposited, so that the material of the glass to the functional film realizes gradient transition, thereby enhancing the adhesion of the functional film after plating to prevent it from falling off.

Description

Technical Field

[0001] This invention relates to the field of coated glass technology for buildings, specifically to a coated glass and its preparation method. Background Technology

[0002] Coated glass for buildings, such as Low-E glass and one-way mirror glass, is widely used due to its advantages such as energy saving and privacy protection. Most existing coated glass for buildings is single-layered, which results in the coating being exposed and having a single function. The coating is exposed to the external environment, such as coastal salt spray and industrial acid and alkaline gases, which can easily penetrate into the coating layer (especially the edge gaps), causing the coating layer to oxidize and turn black. For example, ordinary Low-E glass will show corrosion in coastal areas within 2-3 years. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a coated glass and its preparation method, solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a coated glass comprising a first glass substrate, a second glass substrate, and an outer glass. The second glass substrate is disposed above the first glass substrate, and a gradient transition layer is deposited on the surfaces of both the first and second glass substrates. A first coating is deposited on the surface of the gradient transition layer of the first glass substrate, and a second coating is deposited on the surface of the gradient transition layer of the second glass substrate. The outer diameter of the gradient transition layer is smaller than the outer diameters of the first and second glass substrates, and a rough edge is provided between the edge of the gradient transition layer and the edges of the first and second glass substrates. A first rubber sealing gasket is bonded to the rough edge of the surface of the first glass substrate using an adhesive, and the upper surface of the first rubber sealing gasket is bonded to the rough edge of the bottom of the second glass substrate. A second rubber sealing gasket is bonded to the rough edge of the upper surface of the second glass substrate using an adhesive, and the outer glass is bonded to the upper surface of the second rubber sealing gasket. A rough edge is also provided at the bottom edge of the outer glass, bonded to the upper surface of the second rubber sealing gasket.

[0005] Furthermore, the first glass substrate and the second glass substrate (2) are made of ultra-thin tempered soda-lime glass with a thickness of 3-5 mm.

[0006] Furthermore, the first coating is one of a Low-E film, a one-way transparent film, or an anti-ultraviolet film, with a thickness of 8-20 nm, and the second coating is one of a photochromic film, a colored decorative film, or an ultraviolet absorption film, with a thickness of 50-100 nm.

[0007] Furthermore, the outer glass is made of 5mm thick high-transmittance ultra-white glass with a light transmittance of >90%.

[0008] Furthermore, any part of the second rubber sealing gasket and the first rubber sealing gasket has a storage space, and a rubber sheet is provided inside the storage space. A connector is passed through the surface of the rubber sheet, and a telescopic end cap is connected inside the connector by a spring. A first air extraction hole is provided on the outer wall of the inner end of the telescopic end cap.

[0009] Furthermore, the outer wall of the connector is threaded with a joint, and the inner wall of the joint is fixed with an insertion tube. One end of the insertion tube has a second air extraction hole on its outer wall, and the other end of the insertion tube is connected to an air extraction tube.

[0010] A method for preparing coated glass, applicable to the preparation of the aforementioned coated glass, the method comprising the following steps:

[0011] Step 1: Roughening processing areas are reserved on the edges of the first glass substrate, the second glass substrate, and the outer glass respectively. These areas are then subjected to ultrasonic cleaning and drying.

[0012] Step 2: Place the first glass substrate and the second glass substrate in a magnetron sputtering coating machine in sequence to deposit a gradient transition layer with a thickness of 5-10 nm, corresponding to the target source of the first coating and the second coating.

[0013] Furthermore, the method for preparing the coated glass also includes the following steps:

[0014] Step 3: For the first glass substrate, after depositing and forming a gradient transition layer on its surface, replace the target material corresponding to the first coating to deposit and form the first coating on the surface of the gradient transition layer.

[0015] Step 4: For the second glass substrate, after depositing and forming a gradient transition layer on its surface, replace the target material corresponding to the second coating to deposit and form the second coating on the surface of the gradient transition layer.

[0016] Furthermore, the method for preparing the coated glass also includes the following steps:

[0017] Step 5: Adhere the first rubber gasket to the rough edge of the upper surface of the first glass substrate using adhesive, then adhere the second glass substrate to the surface of the first rubber gasket, and then adhere the second rubber gasket to the rough edge of the upper surface of the second glass substrate using adhesive. Finally, adhere the outer glass to the upper surface of the second rubber gasket.

[0018] Furthermore, the method for preparing the coated glass also includes the following steps:

[0019] Step 6: Insert the insertion tube into the telescopic head to compress the spring, and extend the telescopic head to the space between the first glass substrate and the second glass substrate, and between the second glass substrate and the outer glass. Then, screw the connector to connect it to the threaded connector.

[0020] Step 7: Using the pump body, the space between the first glass substrate and the second glass substrate, and between the second glass substrate and the outer glass, is evacuated to a vacuum through the suction pipe. The gas is extracted along the first suction hole and the second suction hole. After the vacuum reaches the preset value, the insertion tube is removed. At this time, the spring automatically resets, causing the telescopic end cap to retract into the connector to seal the vacuum area. Under the action of the inclined rubber sheet, the connector is hidden inside the storage space to prevent it from being exposed and affecting the appearance. This yields coated glass. When installing the coated glass, the frame needs to cover the rough edges to avoid affecting the appearance.

[0021] This invention provides a coated glass and its preparation method, which has the following beneficial effects:

[0022] 1. The coated glass and its preparation method involve setting up multiple pieces of glass and depositing functional films with different functions on the surfaces of different glass pieces. Then, rubber sealing gaskets are used to achieve mutual adhesion and side sealing between the glass pieces, so that the functional films are in a sealed space between the glass pieces, thereby preventing exposure and contact with the outside world. This avoids oxidation, blackening, and corrosion of the film layer. Moreover, by pre-depositing a gradient transition layer adapted to the material of the functional film on the glass surface in a transitional deposition manner, the material gradient transition from the glass to the functional film is achieved, thereby enhancing the adhesion of the functional film after coating and preventing it from falling off.

[0023] 2. The coated glass and its preparation method, the coated glass with multiple functional films can meet multiple needs at the same time. The elastic telescopic end cap can conveniently extract or inject protective gas between the glass during the processing. After the extraction and injection are completed, the connector can be sealed to prevent gas leakage or the entry of outside air. The connector (12) based on the inclined part of the rubber sheet can be perfectly hidden in the storage space to prevent exposure and affect the aesthetics. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a coated glass after separation of a first glass substrate, a second glass substrate, and an outer glass.

[0025] Figure 2 This is a schematic diagram of the structure of a coated glass after separation of the first glass substrate, gradient transition layer, first coating, and first rubber sealing gasket according to the present invention.

[0026] Figure 3 This is a schematic diagram of the first glass substrate, gradient transition layer, and structure after separation of the first coating of a coated glass according to the present invention.

[0027] Figure 4 This is a schematic cross-sectional view of the first glass substrate, the second glass substrate, and the outer glass after bonding together according to the present invention.

[0028] Figure 5 This is a top view cross-sectional structural diagram of the first rubber sealing gasket for coated glass according to the present invention;

[0029] Figure 6 This is a top view cross-sectional structural diagram of a connector for coated glass according to the present invention.

[0030] In the figure: 1. First glass substrate; 2. Second glass substrate; 3. Gradient transition layer; 4. First coating; 5. Second coating; 6. Rough edge; 7. First rubber gasket; 8. Second rubber gasket; 9. Outer glass; 10. Storage space; 11. Rubber sheet; 12. Connector; 13. Spring; 14. Telescopic end cap; 15. First vent hole; 16. Connector; 17. Insertion tube; 18. Second vent hole; 19. Vent pipe. Detailed Implementation

[0031] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0032] like Figures 1-6As shown, the present invention provides a technical solution comprising: a first glass substrate 1, a second glass substrate 2, and an outer glass 9. The second glass substrate 2 is disposed above the first glass substrate 1, and a gradient transition layer 3 is deposited on the surfaces of both the first and second glass substrates 1 and 2. A first coating 4 is deposited on the surface of the gradient transition layer 3 of the first glass substrate 1, and a second coating 5 is deposited on the surface of the gradient transition layer 3 of the second glass substrate 2. The outer diameter of the gradient transition layer 3 is smaller than the outer diameters of the first and second glass substrates 2, and a rough edge surface 6 is provided between the edge of the gradient transition layer 3 and the edge of the first and second glass substrates 2. A first rubber sealing gasket 7 is bonded to the rough edge surface 6 on the surface of the first glass substrate 1 using an adhesive, and the upper surface of the first rubber sealing gasket 7 is bonded to the rough edge surface 6 at the bottom of the second glass substrate 2. A second rubber sealing gasket 8 is bonded to the rough edge surface 6 on the upper surface of the second glass substrate 2 using an adhesive, and the outer glass 9 is bonded to the upper surface of the second rubber sealing gasket 8. An outer glass 9 is also provided at the bottom edge of the outer glass 9. The rough edge 6 is bonded to the upper surface of the rubber sealing gasket 8. The first glass substrate 1 and the second glass substrate 2 are made of ultra-thin tempered soda-lime silica glass with a thickness of 3-5mm. The first coating 4 is one of Low-E film, one-way vision film, or anti-ultraviolet film, with a thickness of 8-20nm. The second coating 5 is one of photochromic film, colored decorative film, or ultraviolet absorption film, with a thickness of 50-100nm. The outer glass 9 is made of 5mm thick high-transmittance ultra-white glass with a light transmittance >90%. The second rubber sealing gasket 8 and the first rubber sealing gasket Any part of 7 has a storage space 10, and a rubber sheet 11 is provided inside the storage space 10. A connector 12 passes through the surface of the rubber sheet 11, and a telescopic end cap 14 is connected inside the connector 12 by a spring 13. A first air extraction hole 15 is provided on the outer wall of the inner end of the telescopic end cap 14. A connector 16 is threaded to the outer wall of the connector 12, and an insertion tube 17 is fixed to the inner wall of the connector 16. A second air extraction hole 18 is provided on the outer wall of one end of the insertion tube 17, and an air extraction tube 19 is connected to the other end of the insertion tube 17.

[0033] The specific operation is as follows: Based on functional requirements, two or more pieces of glass to be coated are used. If a coated glass with two functions is required, the two pieces of glass to be coated are referred to as the first glass substrate 1 and the second glass substrate 2, respectively. After processing rough edges 6 on the sides of the first glass substrate 1 and the second glass substrate 2, taking the first glass substrate 1 as an example, a gradient transition layer 3 with a thickness of 5-10 nm is deposited on its surface using a silicon aluminate oxide target (SiO2-Al2O3, molar ratio 7:3) as the target source, under argon atmosphere (purity 99.99%), vacuum degree 0.3-0.5 Pa, and sputtering power 200-300 W. The gradient transition layer 3 adopts a stepwise transition deposition method, that is: first, Si... The first coating film 4 is deposited with an O2 target for 3-5 nm, then with a SiO2-Al2O3 mixed target (molar ratio 8:2) for 2-3 nm, and finally with an Al2O3 target for 1-2 nm. Then the target corresponding to the function of the first coating film 4 is replaced, such as a silver-copper alloy target or a vanadium tungstate target. The sputtering power is adjusted to 150-250W to deposit the first coating film 4 with a thickness of 8-20 nm and a deposition rate of 0.5-1 nm / min. In this way, by pre-depositing a gradient transition layer 3 that is compatible with the material of the first coating film 4, a material gradient transition from the first glass substrate 1 to the first coating film 4 is achieved, thereby enhancing the adhesion of the first coating film 4 after deposition and preventing it from falling off. The gradient transition layer 3 on the surface of the second glass substrate 2 works on the same principle.

[0034] Then, by replacing the target material corresponding to the required function on the gradient transition layer 3 on the surfaces of the two glass substrates to be coated, the first coating 4 and the second coating 5 are formed. The first rubber sealing gasket 7 and the second rubber sealing gasket 8 are bonded to the rough edge surface 6 of the first glass substrate 1, the second glass substrate 2, and the outer glass 9 with adhesive to seal the edge. The first coating 4 and the second coating 5 are then placed in the sealed space. The sealed space is then evacuated to a vacuum by vacuuming. Alternatively, protective gas can be injected into the sealed space to protect the coating.

[0035] Based on the above description, the present invention sets up multiple pieces of glass and deposits functional films with different functions on different glass surfaces. Then, rubber sealing gaskets are used between the glass to achieve mutual adhesion and side sealing, so that the functional film is in the sealed space between the glass, thereby preventing exposure and contact with the outside world, thus avoiding oxidation, blackening and corrosion of the film layer. Moreover, by pre-depositing a gradient transition layer 3 adapted to the material of the functional film on the glass surface in a transitional deposition manner, the material gradient transition from glass to functional film is achieved, thereby enhancing the adhesion of the functional film after deposition and preventing it from falling off.

[0036] After the first glass substrate 1, the second glass substrate 2, and the outer glass 9 are bonded together and assembled, coated glass can be formed. At this time, it is necessary to extract the air in the sealed space between the glass to form a vacuum space or inject protective gas. At this time, the insertion tube 17 is inserted into the telescopic head 14, which compresses the spring 13 and extends the telescopic head 14 into the sealed space. Then, the pump body is used to extract the air in the sealed space through the first air extraction hole 15 and the second air extraction hole 18 through the air extraction tube 19. After the vacuum degree or protective gas injection reaches the preset value, the insertion tube 17 is taken out. At this time, the spring 13 automatically resets, causing the telescopic head 14 to retract into the connector 12 to seal the vacuum area. Under the action of the inclined rubber sheet 11, the connector 12 is hidden in the storage space 10 to prevent exposure and affect the appearance. Thus, coated glass is obtained.

[0037] The rubber sealing gaskets on both sides of the concealed space 10 have a petal-shaped closed structure. When the telescopic head 14 extends, the petal-shaped closed structure will open, and after it retracts, the petal-shaped closed structure will close, thus achieving the concealment effect.

[0038] Based on the above description, the coated glass prepared by the present invention, which has multiple functional films, can meet multiple needs at the same time. The elastically expandable telescopic end cap 14 facilitates the extraction or injection of protective gas between the glass during the processing. After the extraction or injection is completed, it can automatically seal the connector 12 to prevent gas leakage or the entry of outside air. Furthermore, the connector 12, based on the inclined portion of the rubber sheet 11, can be perfectly hidden in the storage space 10 to prevent exposure and affect the aesthetics.

[0039] like Figures 1-6 As shown, a method for preparing coated glass is described, which is applied to the preparation of the aforementioned coated glass. The method for preparing coated glass includes the following steps:

[0040] Step 1: The rough edge surface 6 is reserved on the side of the first glass substrate 1, the second glass substrate 2, and the outer glass 9 respectively. The rough edge surface 6 is roughened, and then ultrasonic cleaning and drying are performed.

[0041] Step 2: Place the first glass substrate 1 and the second glass substrate 2 in a magnetron sputtering coating machine in sequence, and deposit a gradient transition layer 3 with a thickness of 5-10 nm to correspond to the target source of the first coating 4 and the second coating 5.

[0042] Step 3: For the first glass substrate 1, after depositing and forming a gradient transition layer 3 on its surface, replace the target material corresponding to the first coating 4 to deposit and form the first coating 4 on the surface of the gradient transition layer 3.

[0043] Step 4: For the second glass substrate 2, after depositing and forming a gradient transition layer 3 on its surface, replace the target material corresponding to the second coating 5 to deposit and form the second coating 5 on the surface of the gradient transition layer 3.

[0044] Step 5: Adhere the first rubber sealing gasket 7 to the rough edge 6 on the upper surface of the first glass substrate 1 using an adhesive, then adhere the second glass substrate 2 to the surface of the first rubber sealing gasket 7, then adhere the second rubber sealing gasket 8 to the rough edge 6 on the upper surface of the second glass substrate 2 using an adhesive, and adhere the outer glass 9 to the upper surface of the second rubber sealing gasket 8.

[0045] Step 6: Insert the insertion tube 17 into the telescopic end cap 14, so that the spring 13 is compressed and the telescopic end cap 14 extends outward to the space between the first glass substrate 1 and the second glass substrate 2, and between the second glass substrate 2 and the outer glass 9. Then screw the connector 16 to connect it to the connector 12 by thread.

[0046] Step 7: Using the pump body, the space between the first glass substrate 1 and the second glass substrate 2, and between the second glass substrate 2 and the outer glass 9, is evacuated to a vacuum through the suction pipe 19. The gas is extracted along the first suction hole 15 and the second suction hole 18. After the vacuum reaches the preset value, the insertion tube 17 is removed. At this time, the spring 13 automatically resets, causing the telescopic end cap 14 to retract into the connector 12 to seal the vacuum area. Under the action of the inclined rubber sheet 11, the connector 12 is hidden inside the storage space 10 to prevent it from being exposed and affecting the appearance. Thus, coated glass is obtained. When installing the coated glass, the frame needs to cover the rough edge 6 to avoid affecting the appearance.

[0047] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A coated glass, comprising a first glass substrate (1), a second glass substrate (2), and an outer glass (9), characterized in that: A second glass substrate (2) is disposed above the first glass substrate (1), and a gradient transition layer (3) is deposited on the surface of the first glass substrate (1) and the second glass substrate (2). A first coating (4) is deposited on the surface of the gradient transition layer (3) of the first glass substrate (1), and a second coating (5) is deposited on the surface of the gradient transition layer (3) of the second glass substrate (2). The outer diameter of the gradient transition layer (3) is smaller than the outer diameter of the first glass substrate (1) and the second glass substrate (2), and a rough edge surface (6) is provided between the side of the gradient transition layer (3) and the side of the first glass substrate (1) and the second glass substrate (2). A first rubber sealing gasket (7) is bonded to the rough edge surface (6) on the surface of the first glass substrate (1) by an adhesive, and the upper surface of the first rubber sealing gasket (7) is bonded to the rough edge surface (6) at the bottom of the second glass substrate (2). The rough edge surface (6) on the upper surface of the second glass substrate (2) is bonded to the rough edge surface (6) by an adhesive. A second rubber sealing gasket (8) is bonded to the surface of the second rubber sealing gasket (8), and an outer glass (9) is bonded to the upper surface of the second rubber sealing gasket (8). A rough edge (6) is also provided at the bottom side of the outer glass (9) to be bonded to the upper surface of the second rubber sealing gasket (8). A storage space (10) is provided in any part of the second rubber sealing gasket (8) and the first rubber sealing gasket (7). A rubber sheet (11) is provided inside the storage space (10). A connector (12) is passed through the surface of the rubber sheet (11). A telescopic end cap (14) is connected to the inside of the connector (12) by a spring (13). A first air extraction hole (15) is provided on the outer wall of the inner end of the telescopic end cap (14). A connector (16) is threaded to the outer wall of the connector (12). An insertion tube (17) is fixed to the inner wall of the connector (16). A second air extraction hole (18) is provided on the outer wall of one end of the insertion tube (17). An air extraction tube (19) is connected to the other end of the insertion tube (17).

2. The coated glass according to claim 1, characterized in that: The first glass substrate (1) and the second glass substrate (2) are made of ultra-thin tempered soda-lime glass with a thickness of 3-5 mm.

3. The coated glass according to claim 1, characterized in that: The first coating (4) is one of Low-E film, one-way transparent film or UV protection film, with a thickness of 8-20nm. The second coating (5) is one of photochromic film, colored decorative film or UV absorption film, with a thickness of 50-100nm.

4. The coated glass according to claim 1, characterized in that: The outer glass (9) is made of 5mm thick high-transmittance ultra-white glass with a light transmittance of >90%.

5. A method for preparing coated glass, applied to the preparation of the coated glass according to any one of claims 1-4, characterized in that: The method for preparing the coated glass includes the following steps: Step 1: The rough edge surface (6) processing area is reserved on the side of the first glass substrate (1), the second glass substrate (2) and the outer glass (9) respectively. The area is roughened and then ultrasonically cleaned and dried. Step 2: Place the first glass substrate (1) and the second glass substrate (2) in a magnetron sputtering coating machine in sequence to deposit a gradient transition layer (3) with a thickness of 5-10 nm, corresponding to the target source of the first coating (4) and the second coating (5).

6. The method for preparing coated glass according to claim 5, characterized in that: The method for preparing the coated glass further includes the following steps: Step 3: For the first glass substrate (1), after depositing and forming a gradient transition layer (3) on its surface, replace the target material corresponding to the first coating (4) to deposit and form the first coating (4) on the surface of the gradient transition layer (3). Step 4: For the second glass substrate (2), after depositing a gradient transition layer (3) on its surface, replace the target material corresponding to the second coating (5) to deposit a second coating (5) on the surface of the gradient transition layer (3).

7. The method for preparing coated glass according to claim 6, characterized in that: The method for preparing the coated glass further includes the following steps: Step 5: Adhere the first rubber sealing gasket (7) to the rough edge (6) on the upper surface of the first glass substrate (1) using an adhesive, then adhere the second glass substrate (2) to the surface of the first rubber sealing gasket (7), then adhere the second rubber sealing gasket (8) to the rough edge (6) on the upper surface of the second glass substrate (2) using an adhesive, and adhere the outer glass (9) to the upper surface of the second rubber sealing gasket (8).

8. The method for preparing coated glass according to claim 7, characterized in that: The method for preparing the coated glass further includes the following steps: Step 6: Insert the insertion tube (17) into the telescopic head (14) so ​​that the spring (13) is compressed and the telescopic head (14) extends outward between the first glass substrate (1) and the second glass substrate (2), and between the second glass substrate (2) and the outer glass (9). Then screw the connector (16) to connect it to the connector (12) by thread. Step 7: Using the pump body, the space between the first glass substrate (1) and the second glass substrate (2), and between the second glass substrate (2) and the outer glass (9) is evacuated to a vacuum through the evacuation pipe (19). The gas is extracted along the first evacuation hole (15) and the second evacuation hole (18). After the vacuum reaches the preset value, the insertion tube (17) is taken out. At this time, the spring (13) automatically resets, causing the telescopic end cap (14) to retract into the connector (12) to seal the vacuum area. Under the action of the inclined rubber sheet (11), the connector (12) is hidden inside the storage space (10) to prevent it from being exposed and affecting the aesthetics. Thus, coated glass is obtained. When installing the coated glass, the frame needs to cover the rough edge (6) to avoid affecting the aesthetics.

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