Laminated glass, preparation method thereof and vehicle

Abstract

The invention provides laminated glass, a preparation method thereof and a vehicle. The laminated glass comprises a first glass plate, a second glass plate and a functional composite structure, at least one of the first glass plate and the second glass plate is chemically-tempered glass, the functional composite structure comprises a functional layer, a bonding layer and a dark polymer film, and the bonding layer is arranged between the chemically-tempered glass and the functional layer. The dark polymer film covers at least a portion of the edge region of the functional layer. According to the laminated glass, the dark polymer film is adopted to replace an ink printing layer in related technologies, the functional layer, the bonding layer and the dark polymer film can be compounded into the functional composite structure firstly, then the functional composite structure is laminated with the chemically-tempered glass and the functional composite structure, the laminated glass is obtained, the strength of the laminated glass is improved, and the service life of the laminated glass is prolonged. According to the laminated glass, the defect that ink cannot be printed on the tempered glass is overcome, an ink printing procedure is not needed, the functional layer of the laminated glass is modularized, the production cost is reduced, and the production efficiency of the laminated glass is improved.

Description

Technical Field

[0001] This application belongs to the field of glass assembly technology, specifically relating to laminated glass and its preparation method, and vehicles. Background Technology

[0002] Users now have increasingly diverse functional requirements for automotive glass, demanding not only high strength but also lightweight and functional properties.

[0003] One approach to addressing the demand for lightweight glass is to reduce its thickness. While reducing the thickness, strength requirements must also be met; therefore, chemical tempering is typically used for these thin glasses. Chemical tempering differs from physical tempering. Physical tempering requires heating and shaping the glass at a softening temperature of at least 500 degrees Celsius followed by rapid cooling; chemical tempering, on the other hand, increases the surface stress of the already-shaped glass through ion exchange at temperatures below its strain point, thereby improving the strength of the thin glass.

[0004] For functional glass, when adding functional layers with functions such as dimming and heating to laminated glass, it is generally necessary to shield the periphery of the functional layer or the location of electrical connection components. The common shielding method is to print an opaque ink layer on the glass. After printing, this ink needs to be sintered and cured at a high temperature, which is generally comparable to the softening and forming temperature of the glass.

[0005] For laminated glass that needs to meet both lightweight and functional requirements, if at least one glass pane is first treated with chemical tempering and then an ink layer is printed to cover the functional layer, the sintering process after printing the ink layer will damage the ion layer on the surface of the tempered glass, thus affecting the strength of the tempered glass. On the other hand, if the glass is printed and sintered first and then chemically tempered, the ink will hinder ion exchange on the glass surface, which will also affect the strength of the tempered glass. Summary of the Invention

[0006] In view of this, the first aspect of this application provides a laminated glass, the laminated glass comprising a first glass plate, a second glass plate, and a functional composite structure; The first glass plate and the second glass plate are disposed on opposite sides of the functional composite structure; At least one of the first glass plate and the second glass plate is chemically tempered glass; The functional composite structure includes a functional layer, an adhesive layer, and a dark polymer film; The adhesive layer is provided between the chemically tempered glass and the functional layer; The dark polymer film is disposed between the chemically tempered glass and the adhesive layer, or the dark polymer film is disposed between the adhesive layer and the functional layer; The dark polymer film covers at least a portion of the edge region of the functional layer, and the visible light transmittance of the dark polymer film is ≤1%.

[0007] The material of the dark polymer film is selected from at least one of polyvinyl butyral (PVB), polyethylene terephthalate (PET), ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), thermoplastic polyurethane elastomer (TPU), polyurethane (PU), and ionic polymer (SGP).

[0008] The thickness of the dark polymer film is 0.05mm to 0.1mm.

[0009] Wherein, the width of the dark polymer film is 5mm to 15mm along the arrangement direction from the edge of the laminated glass to the center of the laminated glass.

[0010] The functional layer includes a functional film, which has a dimming function to adjust the visible light transmittance of the laminated glass, and / or has a heating function.

[0011] The adhesive layer includes a first adhesive sub-layer, a second adhesive sub-layer, and an edge-repairing adhesive sub-layer. The first adhesive sub-layer is disposed between the functional film and the first glass plate, the second adhesive sub-layer is disposed between the functional film and the second glass plate, and the edge-repairing adhesive sub-layer is disposed in the same layer as the functional film. The functional composite structure further includes an electrode assembly electrically connected to the functional film, the electrode assembly being disposed on the edge bonding sublayer, and the dark polymer film covering the edge bonding sublayer along the lamination direction of the laminated glass.

[0012] The dark polymer film includes a first shielding sub-film and a second shielding sub-film. The first shielding sub-film is disposed between the first adhesive sub-layer and the first glass plate, and the second shielding sub-film is disposed between the second adhesive sub-layer and the second glass plate.

[0013] The dark polymer film includes a first shielding sub-film and a second shielding sub-film. The first shielding sub-film is disposed between the first adhesive sub-layer and the functional film, and the second shielding sub-film is disposed between the second adhesive sub-layer and the functional film.

[0014] The functional layer includes a heating wire for heating, which is embedded in the adhesive layer.

[0015] The functional composite structure further includes a conductive component that electrically connects the heating wire, the conductive component being embedded in the adhesive layer; Along the stacking direction of the laminated glass, the dark polymer film covers the conductive component.

[0016] The dark polymer film includes a first shielding sub-film and a second shielding sub-film. The first shielding sub-film is disposed between the adhesive layer and the first glass plate, and the second shielding sub-film is disposed between the adhesive layer and the second glass plate.

[0017] The thickness of the chemically tempered glass is 0.5 mm to 1.4 mm.

[0018] Wherein, one of the first glass plate and the second glass plate is the chemically tempered glass, and the other is physically tempered glass or physically strengthened glass; The laminated glass further includes a shielding layer, which is disposed on the side of the physically tempered glass facing the functional composite structure, or on the side of the physically reinforced glass facing the functional composite structure.

[0019] A second aspect of this application provides a vehicle comprising a body and a laminated glass as described above, the laminated glass being disposed on the body.

[0020] A third aspect of this application provides a method for preparing laminated glass, the method comprising: A first glass plate, a second glass plate, and a functional composite structure are provided. At least one of the first glass plate and the second glass plate is chemically tempered glass. The functional composite structure includes a functional layer, an adhesive layer, and a dark polymer film. The visible light transmittance of the dark polymer film is ≤1%. The first glass plate, the functional composite structure, and the second glass plate are stacked sequentially, and the adhesive layer is provided between the chemically tempered glass and the functional layer. The dark polymer film is provided between the chemically tempered glass and the adhesive layer, or the dark polymer film is provided between the adhesive layer and the functional layer. A first lamination process is performed on the first glass plate, the functional composite structure, and the second glass plate to obtain laminated glass.

[0021] The step of obtaining the functional composite structure includes: It provides a functional layer, an adhesive layer, and a dark polymer film; The functional layer is disposed on the adhesive layer, and the dark polymer film covers at least a portion of the edge region of the functional layer; A second lamination process is performed on the functional layer, the adhesive layer, and the dark polymer film to obtain the functional composite structure.

[0022] The step of providing the first glass plate and the second glass plate further includes: At least one of the first glass plate and the second glass plate is tempered to make at least one of the first glass plate and the second glass plate the chemically tempered glass.

[0023] The tempering process performed on one of the first glass plate and the second glass plate is a chemical tempering process, while the tempering process performed on the other glass plate is a physical tempering process.

[0024] The laminated glass, its preparation method, and the vehicle provided in this application, by using a dark polymer film instead of the ink printing layer in related technologies, can first composite the functional layer, the adhesive layer, and the dark polymer film into a functional composite structure. Then, it is laminated with chemically tempered glass and the functional composite structure to obtain laminated glass, which improves the strength of the laminated glass. It not only overcomes the defect that tempered glass cannot be printed with ink, but also reduces the production difficulty of tempered glass formed after printing in related technologies. It eliminates the need for an ink printing process and has the advantages of easy forming and small fit deviation. Furthermore, it modularizes the functional layer of the laminated glass, reduces production costs, and improves the production efficiency of laminated glass. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0026] Figure 1 This is a schematic diagram of the functional composite structure provided in one embodiment of this application.

[0027] Figure 2 A schematic diagram of a functional composite structure provided for another embodiment of this application.

[0028] Figure 3 A schematic diagram of a functional composite structure provided in another embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of laminated glass provided in one embodiment of this application.

[0030] Figure 5 This is a schematic flowchart illustrating a method for preparing laminated glass according to an embodiment of this application.

[0031] Labeling: Laminated glass 1, functional composite structure 10, functional layer 11, functional film 111, heating wire 112, adhesive layer 12, first adhesive sub-layer 121, second adhesive sub-layer 122, edge patching adhesive sub-layer 123, dark polymer film 13, first shielding sub-film 131, second shielding sub-film 132, electrode assembly 14, conductive assembly 15, busbar 151, connector 152, first glass plate 20, second glass plate 30. Detailed Implementation

[0032] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0033] In view of this, in order to solve the above problems, please refer to the following: Figures 1-4 This embodiment provides a laminated glass 1, which includes a first glass plate 20, a second glass plate 30, and a functional composite structure 10. The first glass plate 20 and the second glass plate 30 are disposed on opposite sides of the functional composite structure 10. At least one of the first glass plate 20 and the second glass plate 30 is chemically tempered glass.

[0034] The functional composite structure 10 includes a functional layer 11, an adhesive layer 12, and a dark polymer film 13. The adhesive layer 12 is disposed between the chemically tempered glass and the functional layer 11. The dark polymer film 13 is disposed between the chemically tempered glass and the adhesive layer 12, or the dark polymer film 13 is disposed between the adhesive layer 12 and the functional layer 11.

[0035] The dark polymer film 13 covers at least a portion of the edge region of the functional layer 11, and the visible light transmittance of the dark polymer film 13 is ≤1%.

[0036] The functional layer 11 has a dimming function, a heating function, or a dimming-heating function. The functional layer 11 includes at least one of a functional film 111 and a heating wire 112. For example, the functional film 111 can be a dimming film, a heating film, or a dimming-heating film. Optionally, the functional layer 11 is laminated with the adhesive layer 12, or the functional layer 11 is embedded in the adhesive layer 12. Optionally, the thickness of the functional layer 11 is 0.3 mm to 1 mm. For example, the thickness of the functional layer 11 can be, but is not limited to, other values ​​between 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm. Preferably, the thickness of the functional layer 11 is 0.38 mm or 0.76 mm.

[0037] The first glass panel 20 can serve as the outer glass panel of a vehicle. The thickness of the first glass panel 20 is 0.7 mm to 4.0 mm, and the visible light transmittance of the first glass panel 20 is ≥70%. For example, the first glass panel 20 is transparent glass, wherein the total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80% to 95%. For example, the first glass panel 20 can be 2.1 mm thick transparent glass with a visible light transmittance of 89%. The thickness of the first glass panel 20 is preferably 1.6 mm to 3.5 mm.

[0038] The second glass panel 30 can be used as the interior glass panel of a vehicle. The thickness of the second glass panel 30 is 0.7 mm to 4.0 mm, and the visible light transmittance of the second glass panel 30 is ≥70%. For example, the second glass panel 30 is transparent glass or colored glass. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80% to 95%. The total iron content (calculated as Fe2O3) of the colored glass is 0.1% to 0.8%, preferably 0.1% to 0.5%, and the visible light transmittance of the colored glass is 70% to 90%. For example, the second glass panel 30 can be 2.1 mm thick transparent glass with a visible light transmittance of 89%, or 1.6 mm thick green glass with a visible light transmittance of 83%, or 2.1 mm thick green glass with a visible light transmittance of 80%.

[0039] The first glass panel 20 has a first side and a second side. The first side is away from the functional composite structure 10 and is in contact with the external environment of the vehicle, while the second side is close to the functional composite structure 10. The second glass panel 30 has a third side and a fourth side. The third side is close to the functional composite structure 10, while the fourth side is away from the functional composite structure 10 and is in contact with the internal environment of the vehicle. The functional composite structure 10 is located between the second side and the third side.

[0040] For example, the first glass plate 20, the first shielding sub-film 131, the first adhesive sub-layer 121, the edge-patching adhesive sub-layer 123, the functional film 111, the second adhesive sub-layer 122, the second shielding sub-film 132, and the second glass plate 30 are sequentially stacked. The electrode assembly 14 is disposed on the edge-patching adhesive sub-layer 123.

[0041] For example, the first glass plate 20, the first adhesive sublayer 121, the first shielding sublayer 131, the edge-patching adhesive sublayer 123, the functional film 111, the second shielding sublayer 132, the second adhesive sublayer 122, and the second glass plate 30 are stacked sequentially. The electrode assembly 14 is disposed on the edge-patching adhesive sublayer 123.

[0042] For example, the first glass plate 20, the first shielding sub-film 131, the adhesive layer 12, the second shielding sub-film 132, and the second glass plate 30 are stacked in sequence. The heating wire 112 and the conductive component 15 are embedded in the adhesive layer 12.

[0043] For example, the first glass plate 20 is chemically tempered glass. As another example, the second glass plate 30 is chemically tempered glass. Yet another example is that both the first glass plate 20 and the second glass plate 30 are chemically tempered glass.

[0044] Further, the thickness of the chemically tempered glass is 0.5mm to 1.4mm, specifically, examples include 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, or 1.4mm, etc. Preferably, the thickness of the chemically tempered glass is 0.7mm to 1.1mm.

[0045] The material of the adhesive layer 12 may be selected from at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), thermoplastic polyurethane elastomer (TPU), polyurethane (PU), and ionic polymer (SGP). Optionally, the thickness of the adhesive layer 12 is 0.3 mm to 1 mm. For example, the thickness of the adhesive layer 12 may be, but is not limited to, other values ​​between 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm. Preferably, the thickness of the adhesive layer 12 is 0.38 mm or 0.76 mm.

[0046] The adhesive layer 12 and the dark polymer film 13 are stacked. Optionally, the dark polymer film 13 is embedded in the adhesive layer 12. Optionally, the adhesive layer 12 and the dark polymer film 13 are bonded together, and the adhesive layer 12 is bonded together with the functional layer 11.

[0047] Optionally, the visible light transmittance of the adhesive layer 12 is ≥80%. The adhesive layer 12 can be a transparent thermoplastic polymer film or a colored thermoplastic polymer film. Optionally, when the adhesive layer 12 is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 80%. For example, the visible light transmittance of the adhesive layer 12 can be, but is not limited to, 80%, 85%, 90%, or 95%. Optionally, when the adhesive layer 12 is a colored thermoplastic polymer film, the visible light transmittance of the colored thermoplastic polymer film is greater than or equal to 70%. For example, the visible light transmittance of the adhesive layer 12 can be, but is not limited to, 70%, 75%, 80%, 85%, or 90%. The colored thermoplastic polymer film can be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film.

[0048] For example, the adhesive layer 12 can be a single-layer structure or a multi-layer structure. Examples of multi-layer structures include double-layer, triple-layer, quadruple-layer, and five-layer structures. The adhesive layer 12 can also have other functions, such as adding infrared absorbers to provide sun protection or heat insulation, adding ultraviolet absorbers to provide ultraviolet protection, or having at least one layer of the multi-layer structure with a higher plasticizer content to provide sound insulation.

[0049] The visible light transmittance of the dark polymer film 13 is ≤1%, specifically, examples include 1%, 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2%, 0.1%, or 0%. Preferably, the visible light transmittance of the dark polymer film 13 is ≤0.5%, and more preferably, the visible light transmittance of the dark polymer film 13 is ≤0.2%.

[0050] The dark polymer film 13 can form a shielding area, also known as a black border area. The dark polymer film 13 can better block ambient light, avoiding unnecessary interference with vision; it can also shield interior trim parts, improving visual aesthetics; it can serve as a background for displayed images; and it can improve the contrast between the displayed image and background, achieving a higher color gamut and making the image clearer. For example, the dark polymer film 13 is prepared from black PET tape.

[0051] Optionally, the adhesive layer 12 is made of the same material as the dark polymer film 13. Preferably, both the adhesive layer 12 and the dark polymer film 13 are made of polyvinyl butyral (PVB).

[0052] This embodiment improves the bonding performance between the adhesive layer 12 and the dark polymer film 13 by limiting the materials of the adhesive layer 12 and the dark polymer film 13 to be the same, thereby improving the reliability of the laminated glass 1.

[0053] In one embodiment, the material of the dark polymer film 13 is selected from at least one of polyvinyl butyral (PVB), polyethylene terephthalate (PET), ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), thermoplastic polyurethane elastomer (TPU), polyurethane (PU), and ionic polymer (SGP).

[0054] In one embodiment, the thickness of the dark polymer film 13 is 0.05 mm to 0.1 mm, specifically, for example, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm. Preferably, the thickness of the dark polymer film 13 is 0.05 mm to 0.08 mm, and more preferably, the thickness of the dark polymer film 13 is 0.05 mm to 0.06 mm.

[0055] In this embodiment, an ultra-thin dark polymer film 13 is used instead of the ink printing layer in the related technology. This can ensure the shielding performance of the dark polymer film 13 and minimize the misalignment of multiple film layers, thereby improving the yield of laminated glass 1.

[0056] In one embodiment, the width of the dark polymer film 13 is 5mm to 15mm along the arrangement direction from the edge of the laminated glass 1 to the center of the laminated glass 1. Specifically, it can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm, etc. Preferably, the width of the dark polymer film 13 is 8mm to 10mm.

[0057] In related technologies, ink printing can cause some problems for subsequent processes, such as increased molding difficulty and increased misalignment.

[0058] Furthermore, in related technologies, the light-shielding adhesive layer 12 and the light-transmitting adhesive layer 12 can be spliced ​​together to replace the ink printing layer. However, there will inevitably be a gap between the light-shielding adhesive layer 12 and the light-transmitting adhesive layer 12. During subsequent lamination under high temperature and high pressure, this can cause obvious appearance problems such as large spots and large serrations. In addition, the gas in the gap may be difficult to expel, resulting in air bubbles.

[0059] In summary, the laminated glass 1 provided in this embodiment, by using a dark polymer film 13 instead of the ink printing layer in related technologies, can first combine the functional layer 11, the adhesive layer 12, and the dark polymer film 13 into a functional composite structure 10. Then, it is laminated with chemically tempered glass and the functional composite structure 10 to obtain laminated glass 1. This improves the strength of laminated glass 1, not only overcoming the defect that tempered glass cannot be printed with ink, but also reducing the production difficulty of tempered glass formed after printing in related technologies. It eliminates the need for an ink printing process and has the advantages of easy forming and small fit deviation. Furthermore, it modularizes the functional layer 11 of laminated glass 1, reducing production costs and improving the production efficiency of laminated glass 1.

[0060] In addition, by using a dark polymer film 13 and an adhesive layer 12 to overlap, this embodiment can not only replace the ink printing layer, but also avoid splicing gaps, thus avoiding appearance problems and bubble problems.

[0061] Please refer to this as well. Figures 1-2 In one embodiment, the functional layer 11 includes a functional film 111, which has a dimming function to adjust the visible light transmittance of the laminated glass 1, and / or has a heating function.

[0062] The functional film 111 has a dimming function and / or a heating function. For example, the functional film 111 can be a dimming film, or a heating film, or a dimming and heating film.

[0063] Optionally, the functional film 111 is a dimming film, which can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. When energized, the dimming film exhibits different visible light transmittances depending on the voltage applied, thus meeting the visible light transmittance requirements in various scenarios.

[0064] Optionally, the heating film is a transparent conductive film, and the material of the transparent conductive film is selected from metals such as gold, silver, copper, and zinc, or alloy materials. When energized, the heating film can heat evenly, enabling the laminated glass 1 to have functions such as defrosting, defogging, and heat insulation.

[0065] Optionally, the functional film 111 is a dimming and heating film, which has both dimming and heating functions.

[0066] In one embodiment, the adhesive layer 12 includes a first adhesive sublayer 121, a second adhesive sublayer 122, and an edge-repairing adhesive sublayer 123. The first adhesive sublayer 121 is disposed between the functional film 111 and the first glass plate 20, the second adhesive sublayer 122 is disposed between the functional film 111 and the second glass plate 30, and the edge-repairing adhesive sublayer 123 is disposed in the same layer as the functional film 111.

[0067] The functional composite structure 10 further includes an electrode assembly 14 electrically connected to the functional film 111. The electrode assembly 14 is disposed on the edge bonding sublayer 123. Along the stacking direction of the laminated glass 1, the dark polymer film 13 covers the edge bonding sublayer 123.

[0068] The materials of the first adhesive sublayer 121, the second adhesive sublayer 122, and the edge-patterning adhesive sublayer 123 may be selected from at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), thermoplastic polyurethane elastomer (TPU), polyurethane (PU), and ionic polymer (SGP). The first adhesive sublayer 121, the second adhesive sublayer 122, and the edge-patterning adhesive sublayer 123 may be transparent thermoplastic polymer films or colored thermoplastic polymer films. Optionally, the visible light transmittance of the first adhesive sublayer 121, the second adhesive sublayer 122, and the edge-patterning adhesive sublayer 123 may be ≥80%.

[0069] The edge-patterning adhesive sublayer 123 bonds the first adhesive sublayer 121 and the second adhesive sublayer 122 together, and the edge-patterning adhesive sublayer 123 can be used to seal the functional membrane 111. Further optionally, the edge-patterning adhesive sublayer 123 is disposed around the functional membrane 111, and the thickness of the edge-patterning adhesive sublayer 123 is equal to the thickness of the functional membrane 111.

[0070] The edge-sealing adhesive layer 123 can cooperate with the first adhesive layer 121 and the second adhesive layer 122. The edge-sealing adhesive layer 123, the first adhesive layer 121, and the second adhesive layer 122 form a double seal for the functional membrane 111, further preventing external water, oxygen, and other impurities from entering the functional membrane 111, extending the service life of the functional membrane 111, and improving the reliability of the laminated glass 1. Optionally, the material of the edge-sealing adhesive layer 123 is selected from transparent sealing adhesive. Optionally, the electrode assembly 14 is embedded in the edge-sealing adhesive layer 123.

[0071] Optionally, the dark polymer film 13 is disposed on the first adhesive sublayer 121 and / or the second adhesive sublayer 122. For example, the dark polymer film 13 is disposed on the first adhesive sublayer 121. Another example is that the dark polymer film 13 is disposed on the second adhesive sublayer 122. Yet another example is that the dark polymer film 13 is disposed on both the first adhesive sublayer 121 and the second adhesive sublayer 122.

[0072] Along the lamination direction of the laminated glass 1, the dark polymer film 13 shields the edge bonding sublayer 123 and the electrode assembly 14, thereby making the laminated glass 1 visually cleaner and more aesthetically pleasing. This avoids the exposure of the metallic luster or conductive materials of the electrode assembly 14, which could affect the overall interior effect of the car. At the same time, it can also play a certain role in heat insulation and decoration, and can also play a certain role in protecting the laminated glass 1, reducing the damage of ultraviolet rays to the internal structure.

[0073] In one embodiment, the dark polymer film 13 includes a first shielding sub-film 131 and a second shielding sub-film 132. The first shielding sub-film 131 is disposed between the first adhesive sub-layer 121 and the first glass plate 20, and the second shielding sub-film 132 is disposed between the second adhesive sub-layer 122 and the second glass plate 30.

[0074] In this embodiment, the first glass plate 20, the first shielding sub-film 131, the first adhesive sub-layer 121, the edge-patching adhesive sub-layer 123, the functional film 111, the second adhesive sub-layer 122, the second shielding sub-film 132, and the second glass plate 30 are sequentially stacked. The electrode assembly 14 is disposed on the edge-patching adhesive sub-layer 123.

[0075] In another embodiment, the dark polymer film 13 includes a first shielding sub-film 131 and a second shielding sub-film 132, wherein the first shielding sub-film 131 is disposed between the first adhesive sub-layer 121 and the functional film 111, and the second shielding sub-film 132 is disposed between the second adhesive sub-layer 122 and the functional film 111.

[0076] In this embodiment, the first adhesive sublayer 121, the first shielding subfilm 131, the edge-patching adhesive sublayer 123, the functional film 111, the second shielding subfilm 132, and the second adhesive sublayer 122 are sequentially stacked. The electrode assembly 14 is disposed on the edge-patching adhesive sublayer 123.

[0077] This embodiment provides a first shielding sub-film 131 and a second shielding sub-film 132 to shield both sides of the edge bonding sub-layer 123, preventing users from observing the electrode assembly 14 outside or inside the vehicle, thereby further improving the visual effect of the laminated glass 1.

[0078] Please refer to Figure 3 In one embodiment, the functional layer 11 includes a heating wire 112 for heating, and the heating wire 112 is embedded in the adhesive layer 12.

[0079] Optionally, the heating wire 112 is a metal wire or a carbon fiber wire. The metal wire is selected from at least one of copper wire, tungsten wire, or enameled wire. When energized, the heating wire 112 can heat the glass uniformly, enabling the laminated glass 1 to perform functions such as defrosting, defogging, and heat insulation.

[0080] In one embodiment, the functional composite structure 10 further includes a conductive component 15 electrically connected to the heating wire 112, the conductive component 15 being embedded in the adhesive layer 12.

[0081] Along the stacking direction of the laminated glass 1, the dark polymer film 13 covers the conductive component 15.

[0082] Optionally, the conductive component 15 includes at least two busbars 151 and connectors 152. The busbars 151 are electrically connected to the heating wires 112, and the connectors 152 are electrically connected to the busbars 151. The busbars 151 can be electrically connected to a power source through the connectors 152.

[0083] Optionally, a dark polymer film 13 is disposed on at least one side of the adhesive layer 12. For example, the dark polymer film 13 is disposed on one side surface of the adhesive layer 12. Or, for example, the dark polymer film 13 is disposed on opposite side surfaces of the adhesive layer 12.

[0084] Along the stacking direction of the laminated glass 1, the dark polymer film 13 shields the conductive component 15, making the laminated glass 1 visually cleaner and more aesthetically pleasing. This avoids the metallic luster of the conductive component 15 or the exposure of conductive materials from affecting the overall interior effect of the car. At the same time, it can also play a certain role in heat insulation and decoration, and can also play a certain role in protecting the laminated glass 1 and reducing the damage of ultraviolet rays to the internal structure.

[0085] In one embodiment, the dark polymer film 13 includes a first shielding sub-film 131 and a second shielding sub-film 132, wherein the first shielding sub-film 131 is disposed between the adhesive layer 12 and the first glass plate 20, and the second shielding sub-film 132 is disposed between the adhesive layer 12 and the second glass plate 30.

[0086] In this embodiment, the first glass plate 20, the first shielding sub-film 131, the adhesive layer 12, the second shielding sub-film 132, and the second glass plate 30 are stacked sequentially. The heating wire 112 and the conductive component 15 are embedded in the adhesive layer 12.

[0087] This embodiment shields both sides of the conductive component 15 by setting a first shielding sub-film 131 and a second shielding sub-film 132, preventing users from observing the conductive component 15 outside or inside the vehicle, and further improving the visual effect of the laminated glass 1.

[0088] In another embodiment, one of the first glass plate 20 and the second glass plate 30 is the chemically tempered glass, and the other is physically tempered glass or physically strengthened glass.

[0089] The laminated glass 1 further includes a shielding layer, which is disposed on the side of the physically tempered glass facing the functional composite structure 10, or on the side of the physically strengthened glass facing the functional composite structure 10.

[0090] For example, the first glass panel 20 serves as the outer glass panel of the vehicle, and the first glass panel 20 is physically tempered glass or physically reinforced glass; the second glass panel 30 serves as the inner glass panel of the vehicle, and the second glass panel 30 is chemically tempered glass.

[0091] Alternatively, the first glass panel 20 can be used as the outer glass panel of the vehicle, and the first glass panel 20 can be chemically tempered glass. The second glass panel 30 can be used as the inner glass panel of the vehicle, and the second glass panel 30 can be physically tempered glass or physically reinforced glass.

[0092] Optionally, the thickness of physically tempered glass or physically strengthened glass is 1.6mm to 3.5mm, specifically for example, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, or 3.5mm, etc.

[0093] A shielding layer is disposed on the second surface of the first glass plate 20. Optionally, the shielding layer is disposed on the edge region of the first glass plate 20. Optionally, the material of the shielding layer is selected from at least one of dark ink and dark polymer film.

[0094] Optionally, the visible light transmittance of the shielding layer is ≤1%, specifically, examples include 1%, 0.9%, 0.8%, 0.7%, 0.6%, 0.5%, 0.4%, 0.3%, 0.2%, 0.1%, or 0%. Preferably, the visible light transmittance of the shielding layer is ≤0.5%, and more preferably, the visible light transmittance of the shielding layer is ≤0.2%.

[0095] For laminated glass 1 with high light-blocking requirements, a shielding layer can be set on physically tempered glass or physically strengthened glass. The shielding layer can work with the dark polymer film 13 to form double shielding, which can better block light and further improve the visual effect of laminated glass 1.

[0096] This application also provides a vehicle, the vehicle including a body and a laminated glass 1 as described above, the laminated glass 1 being disposed on the body.

[0097] Optionally, the laminated glass 1 can be the vehicle's windshield, side window, sunroof, corner window, or rear windshield, etc.

[0098] In summary, the vehicle provided in this embodiment, by adopting the laminated glass 1 provided above in this application, uses a dark polymer film 13 instead of the ink printing layer in the related technology. This allows the functional layer 11, the adhesive layer 12, and the dark polymer film 13 to be first composited into a functional composite structure 10. Then, chemically tempered glass is laminated with the functional composite structure 10 to obtain the laminated glass 1. This improves the strength of the laminated glass 1, overcomes the defect that tempered glass cannot be printed with ink, and reduces the production difficulty of tempered glass formed after printing in the related technology. It eliminates the need for an ink printing process and has the advantages of easy forming and small fit deviation. Furthermore, it modularizes the functional layer 11 of the laminated glass 1, reduces production costs, and improves the production efficiency of the laminated glass 1.

[0099] Please refer to this as well. Figures 1-5 This application also provides a method for preparing laminated glass 1, the method comprising: S100, providing a first glass plate 20, a second glass plate 30, and a functional composite structure 10, wherein at least one of the first glass plate 20 and the second glass plate 30 is chemically tempered glass, and the functional composite structure 10 includes a functional layer 11, an adhesive layer 12, and a dark polymer film 13, wherein the visible light transmittance of the dark polymer film 13 is ≤1%.

[0100] S200, the first glass plate 20, the functional composite structure 10, and the second glass plate 30 are sequentially stacked, and the adhesive layer 12 is provided between the chemically tempered glass and the functional layer 11, and the dark polymer film 13 is provided between the chemically tempered glass and the adhesive layer 12, or the dark polymer film 13 is provided between the adhesive layer 12 and the functional layer 11.

[0101] S300, the first glass plate 20, the functional composite structure 10, and the second glass plate 30 are subjected to a first lamination process to obtain laminated glass 1.

[0102] For a detailed description of the first glass plate 20, the second glass plate 30, the functional layer 11, the adhesive layer 12, and the dark polymer film 13, please refer to the above description of this application, and it will not be repeated here.

[0103] Optionally, the first glass plate 20 and the second glass plate 30 may be cleaned.

[0104] Then, the first glass plate 20, the functional composite structure 10, and the second glass plate 30 are sequentially stacked to obtain the laminated glass assembly to be assembled; subsequently, a second lamination process is performed. Optionally, the second lamination process includes: applying a vacuum ring around the periphery of the laminated glass assembly to be assembled, cold evacuation, initial pressing, and high pressure; finally, laminated glass 1 is obtained.

[0105] In summary, the method for preparing laminated glass 1 provided in this embodiment can first combine the functional layer 11, the adhesive layer 12, and the dark polymer film 13 into a functional composite structure 10. The functional composite structure 10 uses the dark polymer film 13 to replace the ink printing layer in related technologies. Then, it is laminated with chemically tempered glass and the functional composite structure 10 to obtain laminated glass 1. This method improves the strength of laminated glass 1, overcomes the defect that tempered glass cannot be printed with ink, and reduces the production difficulty of tempered glass formed after printing in related technologies. It eliminates the need for an ink printing process and has the advantages of easy forming and small fit deviation. Furthermore, it modularizes the functional layer 11 of laminated glass 1, reduces production costs, and improves the production efficiency of laminated glass 1.

[0106] In one embodiment, step S300 of obtaining the functional composite structure 10 includes: S400 provides a functional layer 11, an adhesive layer 12, and a dark polymer film 13.

[0107] S500, the functional layer 11 is disposed on the adhesive layer 12, and the dark polymer film 13 covers at least a portion of the edge region of the functional layer 11.

[0108] S600, a second lamination process is performed on the functional layer 11, the adhesive layer 12, and the dark polymer film 13 to obtain the functional composite structure 10.

[0109] In the second lamination process, pre-composite equipment can be used to vacuum, heat, and pressurize the functional layer 11, the adhesive layer 12, and the dark thermoplastic polymer to form an integral film layer.

[0110] In one embodiment, the step of providing the first glass plate 20 and the second glass plate 30 further includes: At least one of the first glass plate 20 and the second glass plate 30 is tempered to make at least one of the first glass plate 20 and the second glass plate 30 the chemically tempered glass.

[0111] Before the first glass plate 20 and the second glass plate 30 are laminated, the first glass plate 20 and / or the second glass plate 30 are tempered to improve the strength of the laminated glass 1. This not only overcomes the defect that tempered glass cannot be printed with ink, but also reduces the production difficulty of tempered glass after printing in related technologies. It eliminates the need for ink printing and has the advantages of easy molding and small fit deviation. Furthermore, it modularizes the functional layer 11 of the laminated glass 1, reduces production costs, and improves the production efficiency of the laminated glass 1.

[0112] In one embodiment, the tempering treatment performed on one of the first glass plate 20 and the second glass plate 30 is a chemical tempering treatment, and the tempering treatment performed on the other is a physical tempering treatment.

[0113] Optionally, the chemical tempering process can be as follows: the cleaned first glass plate 20 and / or the second glass plate 30 are placed in potassium nitrate molten salt for ion exchange, so that sodium ions at a certain depth on the surface of the first glass plate 20 and / or the second glass plate 30 are replaced by potassium ions in the molten salt, thereby generating compressive stress on the surface of the first glass plate 20 and / or the second glass plate 30 and forming a compressive stress layer, while a corresponding tensile stress is generated in the central area of ​​the first glass plate 20 and / or the second glass plate 30.

[0114] Unless otherwise stated or in case of conflict, the terms or phrases used in this application shall have the following meanings: In this application, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0115] In this application, "one or more" refers to any one, any two, or any two or more of the listed items. "Several" refers to any two or more.

[0116] In this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0117] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0118] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0119] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A laminated glass, characterized in that, The laminated glass includes a first glass plate, a second glass plate, and a functional composite structure; The first glass plate and the second glass plate are disposed on opposite sides of the functional composite structure; At least one of the first glass plate and the second glass plate is chemically tempered glass; The functional composite structure includes a functional layer, an adhesive layer, and a dark polymer film; The adhesive layer is provided between the chemically tempered glass and the functional layer; The dark polymer film is disposed between the chemically tempered glass and the adhesive layer, or the dark polymer film is disposed between the adhesive layer and the functional layer; The dark polymer film covers at least a portion of the edge region of the functional layer, and the visible light transmittance of the dark polymer film is ≤1%.

2. The laminated glass as described in claim 1, characterized in that, The material of the dark polymer film is selected from at least one of polyvinyl butyral (PVB), polyethylene terephthalate (PET), ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), thermoplastic polyurethane elastomer (TPU), polyurethane (PU), and ionic polymer (SGP).

3. The laminated glass as described in claim 1, characterized in that, The thickness of the dark polymer film is 0.05mm to 0.1mm.

4. The laminated glass as described in claim 1, characterized in that, The width of the dark polymer film is 5mm to 15mm along the arrangement direction from the edge of the laminated glass to the center of the laminated glass.

5. The laminated glass as described in claim 1, characterized in that, The functional layer includes a functional film having a dimming function to adjust the visible light transmittance of the laminated glass, and / or having a heating function.

6. The laminated glass as described in claim 5, characterized in that, The adhesive layer includes a first adhesive sublayer, a second adhesive sublayer, and an edge-repairing adhesive sublayer. The first adhesive sublayer is disposed between the functional film and the first glass plate, the second adhesive sublayer is disposed between the functional film and the second glass plate, and the edge-repairing adhesive sublayer is disposed in the same layer as the functional film. The functional composite structure further includes an electrode assembly electrically connected to the functional film, the electrode assembly being disposed on the edge bonding sublayer, and the dark polymer film covering the edge bonding sublayer along the lamination direction of the laminated glass.

7. The laminated glass as described in claim 6, characterized in that, The dark polymer film includes a first shielding sub-film and a second shielding sub-film. The first shielding sub-film is disposed between the first adhesive sub-layer and the first glass plate, and the second shielding sub-film is disposed between the second adhesive sub-layer and the second glass plate.

8. The laminated glass as described in claim 6, characterized in that, The dark polymer film includes a first shielding sub-film and a second shielding sub-film. The first shielding sub-film is disposed between the first adhesive sub-layer and the functional film, and the second shielding sub-film is disposed between the second adhesive sub-layer and the functional film.

9. The laminated glass as described in claim 1, characterized in that, The functional layer includes a heating wire for heating, which is embedded in the adhesive layer.

10. The laminated glass as described in claim 9, characterized in that, The functional composite structure also includes a conductive component that electrically connects the heating wire, the conductive component being embedded in the adhesive layer; Along the stacking direction of the laminated glass, the dark polymer film covers the conductive component.

11. The laminated glass as claimed in claim 10, characterized in that, The dark polymer film includes a first shielding sub-film and a second shielding sub-film, wherein the first shielding sub-film is disposed between the adhesive layer and the first glass plate, and the second shielding sub-film is disposed between the adhesive layer and the second glass plate.

12. The laminated glass as claimed in claim 1, characterized in that, The thickness of the chemically tempered glass is 0.5 mm to 1.4 mm.

13. The laminated glass as claimed in claim 1, characterized in that, One of the first glass plate and the second glass plate is the chemically tempered glass, and the other is physically tempered glass or physically strengthened glass; The laminated glass further includes a shielding layer, which is disposed on the side of the physically tempered glass facing the functional composite structure, or on the side of the physically reinforced glass facing the functional composite structure.

14. A vehicle, characterized in that, The vehicle includes a body and a laminated glass as described in any one of claims 1-13, the laminated glass being disposed on the body.

15. A method for preparing laminated glass, characterized in that, The preparation method includes: A first glass plate, a second glass plate, and a functional composite structure are provided. At least one of the first glass plate and the second glass plate is chemically tempered glass. The functional composite structure includes a functional layer, an adhesive layer, and a dark polymer film. The visible light transmittance of the dark polymer film is ≤1%. The first glass plate, the functional composite structure, and the second glass plate are stacked sequentially, and the adhesive layer is provided between the chemically tempered glass and the functional layer. The dark polymer film is provided between the chemically tempered glass and the adhesive layer, or the dark polymer film is provided between the adhesive layer and the functional layer. A first lamination process is performed on the first glass plate, the functional composite structure, and the second glass plate to obtain laminated glass.

16. The method for preparing laminated glass as described in claim 15, characterized in that, The steps for obtaining the functional composite structure include: It provides a functional layer, an adhesive layer, and a dark polymer film; The functional layer is disposed on the adhesive layer, and the dark polymer film covers at least a portion of the edge region of the functional layer; A second lamination process is performed on the functional layer, the adhesive layer, and the dark polymer film to obtain the functional composite structure.

17. The method for preparing laminated glass as described in claim 15, characterized in that, The step of providing the first glass plate and the second glass plate also includes: At least one of the first glass plate and the second glass plate is tempered to make at least one of the first glass plate and the second glass plate the chemically tempered glass.

18. The method for preparing laminated glass as described in claim 17, characterized in that, The tempering treatment performed on one of the first glass plate and the second glass plate is a chemical tempering treatment, and the tempering treatment performed on the other is a physical tempering treatment.

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