Glass with film layer, stand column assembly and vehicle

Abstract

The invention relates to glass with a film layer, a stand column assembly and a vehicle. The glass with the film layer comprises a glass substrate and an anti-fogging film layer arranged on the first surface of the glass substrate, the glass substrate is provided with a visible area, and the anti-fogging film layer at least covers the visible area; wherein the anti-fogging film layer comprises a base material layer and a resin functional layer which are arranged in a laminated manner, the base material layer is closer to the glass substrate than the resin functional layer, the material of the resin functional layer comprises a first polymer and a second polymer, the first polymer has a pyrrolidone group, and the second polymer has a hydroxyl group. According to the glass with the film layer, the anti-fogging effect can be improved in an environment with large temperature difference or high humidity, and the use of intelligent modules such as a camera is kept.

Description

Technical Field

[0001] The present application relates to the field of glass, and in particular to a glass with a film layer, a pillar assembly and a vehicle. Background Art

[0002] With the development of vehicle intelligence, more and more vehicles are equipped with cameras or other smart modules such as face recognition around the body to observe and monitor the surrounding environment, realize identity recognition unlocking, vehicle anti-theft, vehicle surround view, etc. Among them, the cleanliness of the glass cover corresponding to the camera or other smart module directly affects the clarity of observation, and in actual use, the glass cover at this position is prone to fogging in an environment with large temperature difference or high humidity, which affects the use of smart modules such as cameras. Summary of the invention

[0003] Based on this, some embodiments of the present application provide a glass with a film layer, which can improve the anti-fogging effect in an environment with large temperature difference or high humidity, and maintain the use of smart modules such as cameras.

[0004] In addition, other embodiments of the present application also provide a pillar assembly and a vehicle including the above-mentioned glass with a film layer.

[0005] A glass with a film layer, comprising:

[0006] A glass substrate, wherein the glass substrate is provided with a visible area;

[0007] An anti-fogging film layer, the anti-fogging film layer is disposed on the first surface of the glass substrate and at least covers the visible area;

[0008] The anti-fogging film layer includes a stacked substrate layer and a resin functional layer, wherein the substrate layer is closer to the glass substrate than the resin functional layer, and the material of the resin functional layer includes a first polymer and a second polymer, wherein the first polymer has a pyrrolidone group and the second polymer has a hydroxyl group.

[0009] In some embodiments, the thickness of the resin functional layer is greater than or equal to 5 μm.

[0010] In some embodiments, the thickness of the resin functional layer is 5 μm to 100 μm.

[0011] In some embodiments, one or more of the following conditions are met:

[0012] (1) The mass ratio of the first polymer to the second polymer is 1:(0.01-0.5);

[0013] (2) The first polymer includes a polymer of a vinyl pyrrolidone compound such as N-vinyl-2-pyrrolidone and N-vinylethyl-2-pyrrolidone; optionally, the first polymer includes one or more of vinyl pyrrolidone-vinyl acetate copolymer and poly(methyl methacrylate-co-N-vinyl pyrrolidone);

[0014] (3) The second polymer includes one or more of cellulose polymers, chitosan polymers, cyclodextrin polymers and polyvinyl alcohol polymers.

[0015] In some embodiments, the cellulose polymer includes one or more of cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, methyl-2-hydroxyethyl cellulose and hydroxypropyl methyl cellulose;

[0016] The chitosan polymer includes one or more of chitosan and hydroxypropyl chitosan;

[0017] The cyclodextrin polymer includes one or more of cyclodextrin and 2-hydroxypropyl-β-cyclodextrin;

[0018] The polyvinyl alcohol polymer includes one or more of polyvinyl alcohol and polyvinyl butyral.

[0019] In some embodiments, the material of the substrate layer includes one or more of cellulose acetate and polyethylene terephthalate.

[0020] In some embodiments, the material of the substrate layer includes cellulose acetate.

[0021] In some embodiments, the thickness of the substrate layer is greater than 10 μm.

[0022] In some embodiments, the thickness of the substrate layer is 10 μm to 200 μm.

[0023] In some of the embodiments, the anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 70 s.

[0024] In some of the embodiments, the anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 80 s.

[0025] In some of the embodiments, the anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 90 s.

[0026] In some of the embodiments, the anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 100 s.

[0027] In some embodiments, the change in visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 2%.

[0028] In some embodiments, the change in visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 1%.

[0029] In some embodiments, a bonding layer is further included, wherein the bonding layer is disposed between the anti-fogging film layer and the glass substrate, and the anti-fogging film layer is disposed on the glass substrate through the bonding layer.

[0030] In some embodiments, the material of the adhesive layer includes one or more of polyvinyl butyral, ethylene-vinyl acetate copolymer, silicone resin, unsaturated polyester, polyurethane and polyacrylate resin.

[0031] In some embodiments, the material of the adhesive layer includes polyvinyl butyral.

[0032] In some embodiments, a heating layer or a heating wire is further included, and the heating layer or the heating wire is arranged on the first surface of the glass substrate, and the anti-fogging film layer is arranged on a side of the heating layer or the heating wire away from the glass substrate.

[0033] In some embodiments, a self-cleaning coating is further included. The self-cleaning coating is disposed on a second surface of the glass substrate. The second surface is disposed opposite to the first surface. The self-cleaning coating at least covers the visible area.

[0034] In some of the embodiments, the material of the self-cleaning coating includes a fluorine-containing material and silicon dioxide particles in a mass ratio of (2-20): (0.01-0.5).

[0035] In some embodiments, the water contact angle of the self-cleaning coating is greater than or equal to 110°, and the oil contact angle is greater than or equal to 90°.

[0036] In some embodiments, the self-cleaning coating has a thickness of less than 200 nm.

[0037] In some embodiments, the self-cleaning coating has a thickness of less than 100 nm.

[0038] In some embodiments, the self-cleaning coating has a thickness of 5 nm to 100 nm.

[0039] A column assembly comprises the above-mentioned glass with a film layer.

[0040] In some of the embodiments, a smart module is also included. The smart module is arranged corresponding to the visible area in the glass with the film layer. The smart module includes one or more of a camera module, a face recognition module and a display screen module.

[0041] A vehicle comprises the above-mentioned glass with a film layer or the above-mentioned pillar assembly.

[0042] The above-mentioned glass with a film layer includes a glass substrate and an anti-fogging film layer arranged on the surface of the glass substrate. The anti-fogging film layer at least covers the visible area. The base material layer in the anti-fogging film layer, on the one hand, serves as a carrier to support the resin functional layer. On the other hand, the adhesion of the resin functional layer on the glass substrate is weak, and the resin functional layer is prone to produce large internal stress in the long-term anti-fogging test of water absorption and release, and then peeling occurs. The setting of the base material layer is helpful to improve the adhesion between the glass substrate and the set functional layer, so that it can continue to play an anti-fogging role in an environment with large temperature difference or high humidity, and there is no risk of peeling. The material of the resin functional layer includes a first polymer having a pyrrolidone group and a second polymer having a hydroxyl group. Both the first polymer and the second polymer are hydrophilic, but the second polymer contains abundant polar group hydroxyl groups, which can provide a greater contribution value to the anti-fog property of the coating, and the first polymer has a pyrrolidone group. For example, the first polymer includes a polymer of a vinyl pyrrolidone compound such as N-vinyl-2-pyrrolidone and N-vinylethyl-2-pyrrolidone. Vinyl pyrrolidone is often copolymerized with other monomers to achieve the desired functionality, such as ethyl acetate monomers, which can effectively inhibit the dissolution of the polymer in water and improve the water resistance of the coating. The first polymer and the second polymer are used together to achieve a complementary synergistic effect, and the advantages of both are utilized to achieve a better anti-fog effect while meeting the water resistance.

[0043] Therefore, the glass with the film layer can absorb water molecules on the glass surface in a fogging environment with large temperature difference and high humidity to prevent fogging, thereby ensuring the high definition of smart modules such as cameras in the visible area. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A schematic diagram of the structure of glass with a film layer according to some embodiments of the present application. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below in conjunction with the specific embodiments. The preferred embodiments of the present application are provided in the specific embodiments. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0048] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0049] In this application, "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0050] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0051] The words "optionally" and the like in this application refer to embodiments of the present application that may provide certain beneficial effects in certain cases. However, other embodiments may also be optional under the same or other circumstances. In addition, the statement of one or more optional embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this application.

[0052] When a numerical range is disclosed in this application, the above range is considered to be continuous and includes the minimum and maximum values ​​of the range, as well as every value between such minimum and maximum values. Further, when a range refers to an integer, every integer between the minimum and maximum values ​​of the range is included. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed in this application should be understood to include any and all subranges included therein.

[0053] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0054] The terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or modules that are inherent to these processes, methods, products, or devices.

[0055] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0056] In the present application, “above” and “below” both include the number itself. For example, a thickness of 20 μm or more means that the thickness is greater than or equal to 20 μm.

[0057] In a first aspect, the present application provides a glass with a film layer, comprising:

[0058] A glass substrate, wherein the glass substrate is provided with a visible area;

[0059] An anti-fogging film layer, wherein the anti-fogging film layer is arranged in a visible area;

[0060] The anti-fogging film layer includes a stacked substrate layer and a resin functional layer, wherein the substrate layer is closer to the glass substrate than the resin functional layer, and the material of the resin functional layer includes a first polymer and a second polymer, wherein the first polymer has a pyrrolidone group and the second polymer has a hydroxyl group.

[0061] The above-mentioned glass with a film layer includes a glass substrate and an anti-fogging film layer arranged on the surface of the glass substrate. The anti-fogging film layer at least covers the visible area. The substrate layer in the anti-fogging film layer serves as a carrier to support the resin functional layer. On the other hand, the adhesion of the resin functional layer on the glass substrate is relatively weak. The arrangement of the substrate layer is conducive to improving the adhesion between the glass substrate and the arranged functional layer, so that it can play an anti-fogging role in an environment with a large temperature difference or high humidity. The material of the resin functional layer includes a first polymer having a pyrrolidone group and a second polymer having a hydroxyl group. Both the first polymer and the second polymer are hydrophilic, but the second polymer contains abundant polar group hydroxyl groups, which can provide a greater contribution value to the anti-fogging property of the coating. The first polymer has a pyrrolidone group. For example, the first polymer includes a polymer of a vinyl pyrrolidone compound of N-vinyl-2-pyrrolidone and N-vinylethyl-2-pyrrolidone. Vinyl pyrrolidone is often copolymerized with other monomers to achieve the desired functionality, such as ethyl acetate monomers, which can effectively inhibit the dissolution of the polymer in water and improve the water resistance of the coating. Therefore, the glass with the film layer can absorb water molecules on the glass surface in a fogging environment with large temperature difference and high humidity to prevent fogging, thereby ensuring the high definition of smart modules such as cameras in the visible area.

[0062] Specifically, a fogging environment with a large temperature difference and high humidity means that when the environment reaches the dew point temperature, water vapor will condense into water droplets to form fog. Large temperature differences and high humidity make it easier to reach the dew point temperature. For example, if the ambient humidity is 95%, as long as the temperature difference between the inside and outside of the glass is more than 1 degree, it is easy for water vapor to condense into water droplets on the glass and produce fog.

[0063] In some embodiments, the glass substrate is a curved glass, for example, the glass substrate is obtained by subjecting a straight glass plate to a high temperature heat treatment of at least 560° C. and bending.

[0064] In some embodiments, the visible area of ​​the glass with the film layer can be used as the field of view of the camera, or as the display area for face recognition, etc. When the glass with the film layer is applied to the column assembly, the column assembly is also provided with one or more of a camera module, a face recognition module and a display screen module, thereby giving the column assembly an intelligent function for observing and monitoring the surrounding environment, achieving the purpose of identity recognition unlocking, vehicle anti-theft, vehicle-mounted surround view, etc.

[0065] In some embodiments, the glass substrate further has a non-visible area, and the non-visible area is provided with an ink layer. Specifically, the visible light transmittance of the non-visible area is less than or equal to 5%. The provision of the non-visible area is conducive to shielding and protecting the components inside the vehicle, and ensuring the aesthetic appearance of the appearance.

[0066] Specifically, the first polymer includes a polymer of a vinyl pyrrolidone compound of N-vinyl-2-pyrrolidone and N-vinylethyl-2-pyrrolidone. The first polymer includes a polymer of a vinyl pyrrolidone compound, which is a highly hydrophilic polymer that can form a strong interaction with water molecules and has a strong water absorption. It is often copolymerized with other monomers to achieve the desired functionality, such as copolymerization with ethyl acetate monomers and / or methacrylate monomers. Although the overall water absorption may be reduced, it can effectively inhibit the dissolution of the polymer in water, improve the water resistance of the coating, and avoid the performance degradation caused by excessive water absorption of the resin layer. It can also enhance the cohesion and adhesion of the coating, so that the coating is more firmly attached to the substrate. Specifically, the copolymer of N-vinylethyl-2-pyrrolidone, for example, refers to a copolymer of N-vinyl-2-pyrrolidone and ethyl acetate monomers and / or methacrylate monomers. In some embodiments, the molecular weight of the first polymer is above 50,000 and below 2,000,000, and a certain molecular weight can ensure that the solubility of the polymer in water is suppressed and is not easily carried away by water.

[0067] In some embodiments, the first polymer includes one or more of vinyl pyrrolidone-vinyl acetate copolymer and poly(methyl methacrylate-co-N-vinyl pyrrolidone).

[0068] The second polymer molecular structure contains abundant polar group hydroxyl groups, which can further endow the resin functional layer with good hydrophilicity and water retention. The first polymer and the second polymer can be used together to achieve a complementary synergistic effect, utilizing the advantages of both to achieve better anti-fogging effect while meeting water resistance.

[0069] Specifically, the second polymer includes one or more of cellulose polymers, chitosan polymers, cyclodextrin polymers and polyvinyl alcohol polymers. Among them, cellulose polymers include one or more of cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, methyl-2-hydroxyethyl cellulose and hydroxypropyl methyl cellulose. Chitosan polymers include one or more of chitosan and hydroxypropyl chitosan. Cyclodextrin polymers include one or more of cyclodextrin and 2-hydroxypropyl-β-cyclodextrin. Polyvinyl alcohol polymers include one or more of polyvinyl alcohol and polyvinyl acetate.

[0070] In some embodiments, the mass ratio of the first polymer to the second polymer is 1:(0.01-0.5). For example, the mass ratio of the first polymer to the second polymer may be, but is not limited to, 1:0.01, 1:0.05, 1:0.1, 1:0.15, 1:0.2, 1:0.25, 1:0.3, 1:0.35, 1:0.4, 1:0.45, 1:0.5, or a range consisting of any two of these values. The first polymer and the second polymer can simultaneously take into account anti-fogging and water resistance and other properties at a certain addition ratio.

[0071] In some embodiments, the thickness of the resin functional layer is greater than or equal to 5 μm. Specifically, the thickness of the resin functional layer is 5 μm to 100 μm. Optionally, the thickness of the resin functional layer is 20 μm to 100 μm. For example, the thickness of the resin functional layer may be, but is not limited to, 5 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm or a range consisting of any two of these values. By optimizing the thickness of the resin functional layer and coordinating with the material of the resin functional layer, its anti-fogging effect is further improved. Under other conditions, the thicker the thickness of the resin functional layer, the better the anti-fogging effect, but the thicker the thickness of the resin functional layer, the higher the cost. At the above thickness, it can take into account both good anti-fogging effect and cost advantage.

[0072] In some embodiments, the resin functional layer can be one layer or multiple layers, and the materials of the multiple layers can be the same or different, as long as the total thickness of the resin functional layer is greater than 5 μm, for example, 5 μm to 100 μm. It can be understood that multiple layers refer to more than two layers.

[0073] In some embodiments, the material of the resin functional layer also includes additives. Specifically, the additives include one or more of a plasticizer, a curing agent, a UV absorber, an antioxidant, a light stabilizer, an inorganic filler, a leveling agent, a coupling agent, and a wetting agent. Specifically, in some of the embodiments, the additives include one or more of a UV absorber, an inorganic filler, a plasticizer, an antioxidant, and a light stabilizer. Adding the above-mentioned additive materials is beneficial to improving its anti-aging performance, film-forming properties, etc., and ensuring the normal use of the smart module in complex driving conditions.

[0074] In some embodiments, the step of preparing the resin functional layer includes: dispersing the first polymer, the second polymer and optional additives in a solvent, applying them on the substrate layer, and curing them to prepare the resin functional layer. Specifically, the curing method includes one or a combination of room temperature curing, heat curing and light curing.

[0075] The substrate layer can serve as a supporting structure for the resin functional layer, so that the resin functional layer can be firmly attached thereto. In some embodiments, part of the substrate layer not only has a supporting function, but also has a low water absorption and anti-fogging function. The water absorbed in the resin functional layer is transferred to the substrate layer, further improving the anti-fogging and durability of the anti-fogging film layer. This type of substrate layer and the resin functional layer complement each other, and the two can more easily achieve ultra-thick film thickness processes, that is, it is easier to customize a film layer structure with better anti-fogging performance according to customer needs. Specifically, the material of the substrate layer includes one or more of cellulose acetate and polyethylene terephthalate. In one embodiment, the material of the substrate layer includes cellulose acetate. Cellulose acetate can absorb and release water by temperature changes and humidity changes. Experiments have shown that the material of the substrate layer includes cellulose acetate, which can better adapt to high humidity environments and is conducive to further improving the anti-fogging effect.

[0076] In some embodiments, the thickness of the substrate layer is above 10 μm. For example, the thickness of the substrate layer can be, but is not limited to, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, or a range consisting of any two of these values. Optionally, the thickness of the substrate layer is 10 μm to 200 μm.

[0077] In some embodiments, the anti-fogging time of the anti-fogging film layer in the 35°C water bath anti-fogging test is greater than or equal to 70s. Optionally, the anti-fogging time of the anti-fogging film layer in the 35°C water bath anti-fogging test is greater than or equal to 80s. Optionally, the anti-fogging time of the anti-fogging film layer in the 35°C water bath anti-fogging test is greater than or equal to 90s. Optionally, the anti-fogging time of the anti-fogging film layer in the 35°C water bath anti-fogging test is greater than or equal to 100s.

[0078] In some embodiments, the change value of the visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 2%. Optionally, the change value of the visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 1%. Wherein, the change value of the visible light transmittance=|T1-T2|, where T1 is the visible light transmittance of the glass substrate, and T2 is the visible light transmittance of the glass substrate after the anti-fogging film layer is provided.

[0079] In some embodiments, the glass with the film layer further includes an adhesive layer, which is disposed between the anti-fogging film layer and the glass substrate, and the anti-fogging film layer is disposed on the glass substrate through the adhesive layer. The adhesive layer is disposed to further improve the adhesion between the base material layer and the glass substrate.

[0080] In some embodiments, the material of the adhesive layer includes one or more of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), silicone resin, unsaturated polyester, polyurethane and polyacrylate resin. In one embodiment, the material of the adhesive layer includes polyvinyl butyral. Experiments have shown that the material of the adhesive layer includes polyvinyl butyral, which is combined with the anti-fogging film layer to further improve its anti-fogging effect.

[0081] In some embodiments, the thickness of the adhesive layer is 5 μm to 760 μm. For example, the thickness of the adhesive layer may be, but is not limited to, 5 μm, 10 μm, 20 μm, 50 μm, 80 μm, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 500 μm, 600 μm, 700 μm, 760 μm, or a range consisting of any two of these values.

[0082] In some embodiments, the glass with the film layer further includes a heating layer or a heating wire, the heating layer or the heating wire is disposed on the first surface of the glass substrate, and the anti-fogging film layer is disposed on a side of the heating layer or the heating wire away from the glass substrate. For example, the heating layer or the heating wire may be a silver-plated heating layer or a silver-plated heating wire. The heating layer or the heating wire is disposed on the glass substrate, so that the glass substrate can be defogged and de-iced when heated, which is conducive to further maintaining a clear field of vision.

[0083] In some embodiments, the glass with the film layer further includes a self-cleaning coating, which is disposed on the second surface of the glass substrate, the second surface being disposed opposite to the first surface, and the self-cleaning coating at least covers the visible area. By providing the self-cleaning coating, the glass substrate is not easily adhered to dust, dripped with rain, etc., so that the above-mentioned smart module disposed in the visible area always maintains high definition, and cooperates with the anti-fogging film layer, so that the glass with the film layer is not easy to fog in a high temperature difference and high humidity environment, and at the same time, is not easy to adhere to dust, drip with rain, etc., thereby ensuring that the above-mentioned smart modules such as the camera always maintain high definition in different environments.

[0084] In some embodiments, the thickness of the self-cleaning coating is below 200nm. For example, the thickness of the self-cleaning coating can be, but is not limited to, 200nm, 180nm, 150nm, 120nm, 100nm, 90nm, 80nm, 70nm, 60nm, 50nm, 40nm, or a range consisting of any two of these values. Optionally, the thickness of the self-cleaning coating is below 100nm. Optionally, the thickness of the self-cleaning coating is above 5nm.

[0085] In some embodiments, the water contact angle of the self-cleaning coating is greater than 110°, and the oil contact angle is greater than 90°. For example, the water contact angle of the self-cleaning coating may be, but is not limited to, 110°, 112°, 114°, 115°, 116°, 118°, 119°, 120°, 122°, or a range consisting of any two of these values. The oil contact angle of the self-cleaning coating may be, but is not limited to, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 100°, or a range consisting of any two of these values. The self-cleaning coating has a certain water and oil repellency, and can quickly roll away dirt attached to the surface of the glass with the film layer under the action of wind and rain, maintain the clarity of the visible area, and ensure the normal use of the smart module.

[0086] In some embodiments, the material of the self-cleaning coating includes a fluorine-containing material and silicon dioxide particles in a mass ratio of (2-20): (0.01-0.5). Optionally, the material of the self-cleaning coating includes a fluorine-containing material and silicon dioxide particles in a mass ratio of (2-20): (0.2-0.4). By adding a certain amount of silicon dioxide particles to the self-cleaning coating, it is beneficial to improve the water contact angle and oil contact angle of the self-cleaning coating.

[0087] In some embodiments, the fluorine-containing material includes one or more of a fluorocarbon material and a fluorosilicon material. Specifically, the fluorine-containing material includes one or more of 3,3,4,4,5,5,5-heptafluoropentyl (trimethoxy) silane, triethoxy (1H,1H,2H,2H-nonafluorohexyl) silane, nonafluorohexyl trimethoxy silane, perfluorooctyl trichlorosilane, perfluorooctyl triethoxy silane, perfluorodecyl trichlorosilane, perfluorodecyl trimethoxy silane, perfluorodecyl triethoxy silane, perfluorotetradecyl-1H,1H,2H,2H-triethoxy silane, perfluorohexadecyl-1H,1H,2H,2H-triethoxy silane, heptadecafluorodecyl triisopropoxy silane and a fluorine-containing silicone oil.

[0088] In some embodiments, the silica particles include hydrophobic fumed silica with a primary particle size of 10 nm to 20 nm. Specifically, the silica particles include one or more of Evonik Degussa AEROSIL R202, AEROSIL R812, AEROSIL R812S, AEROSIL R972, AEROSIL R974 and AEROSIL R805.

[0089] It can be understood that the primary particle size refers to the particle size of a single small crystal grain, also called the original particle size or initial particle size. When the crystal is very small, due to the large surface energy of the crystal grain, the small crystal grains are easily combined together due to weak interaction forces, resulting in agglomeration between the crystal grains, that is, many small crystal grains gather together to form larger secondary particles. The particle size of a single small crystal grain before agglomeration is called the primary particle size, and the particle size of the secondary particles formed after agglomeration is called the secondary particle size. This statement also applies to amorphous particles.

[0090] In some embodiments, the self-cleaning coating can be applied to the glass substrate by spraying, pouring, wiping, evaporation, etc., and then cured. Specifically, the curing method includes one or a combination of room temperature curing, heat curing and light curing.

[0091] Specifically, the self-cleaning coating comprises a fluorine-containing material, a solvent and silicon dioxide particles in a mass ratio of (2-20): (1000-2000): (0.01-0.5). Optionally, the self-cleaning coating comprises a fluorine-containing material, a solvent and silicon dioxide particles in a mass ratio of (2-20): (1000-2000): (0.2-0.4).

[0092] In some embodiments, the solvent includes a fluorine-containing ether solvent. Specifically, the solvent includes one or more of ethyl nonafluorobutyl ether, ethyl nonafluoroisobutyl ether, 1,1,1,3,3,3-hexafluoroisopropyl methyl ether, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, 1,1,1,2,3,3-hexafluoropropyl methyl ether, 1,1,2,2-tetrafluoroethyl ethyl ether, 3-fluoro-4-methylanisole, 4-fluoro-2-methylanisole, heptafluoroisopropyl ethyl ether, isoflurane, sevoflurane, 1,-dichloro-2,2,2-trifluoroethyl chlorodifluoromethyl ether, 2-chloro-1,1,2-trifluoroethyl difluoromethyl ether, 1,1,2,3,3,3-pentafluoropropyl-2,2,2-trifluoroethyl ether, perfluoroheptyl ether, 2,2,3,3-tetrafluoropropyl difluoromethyl ether and 2,6-difluoro-3-methylanisole. Self-cleaning coatings use these solvents with lower boiling points and have extremely strong dissolving power, which can effectively reduce surface tension and improve the wettability of the coating.

[0093] See also Figure 1The glass 100 with film layers includes a glass substrate 110, an adhesive layer 120, an anti-fogging film layer 130 and a self-cleaning coating 140. The glass substrate 110 has a first surface 112 and a second surface 114 arranged opposite to each other. The glass substrate 110 is provided with a visible area 116 and a non-visible area 118. The adhesive layer 120 and the anti-fogging film layer 130 are sequentially stacked on the first surface 112 of the glass substrate 110. The anti-fogging film layer 130 includes a substrate layer 132 and a resin functional layer 134 stacked, and the substrate layer 132 is closer to the glass substrate 110. The self-cleaning coating 140 is arranged on the second surface 114 of the glass substrate 110, and the adhesive layer 120, the anti-fogging film layer 130 and the self-cleaning coating 140 all cover at least the visible area 116.

[0094] In some embodiments, the change value of the visible light transmittance of the glass substrate before and after the anti-fogging film layer and the self-cleaning coating are provided is less than or equal to 2%. Optionally, the change value of the visible light transmittance of the glass substrate before and after the anti-fogging film layer and the self-cleaning coating are provided is less than or equal to 1%. Wherein, the change value of the visible light transmittance=|T1-T3|, where T1 is the visible light transmittance of the glass substrate, and T3 is the visible light transmittance of the glass substrate after the anti-fogging film layer and the self-cleaning coating are provided.

[0095] In some embodiments, the glass with the film layer can be A-pillar exterior panel glass, B-pillar exterior panel glass, C-pillar exterior panel glass, etc. It can be understood that in other embodiments, the glass with the film layer is not limited to being used as a pillar exterior panel glass, but can also be used as a front windshield, a rear windshield, a side window glass, etc.

[0096] In some embodiments, a method for preparing glass with a film layer comprises the following steps:

[0097] Disposing an anti-fogging film layer on the first surface of the glass substrate;

[0098] A self-cleaning coating is disposed on the second surface of the glass substrate, wherein the second surface is disposed opposite to the first surface.

[0099] Specifically, the step of providing an anti-fogging film layer on the first surface of the glass substrate includes: forming a resin functional layer on the base material layer to obtain an anti-fogging film layer; and laminating the anti-fogging film layer, the adhesive layer and the glass substrate to form an anti-fogging film layer on the glass substrate.

[0100] In some embodiments, before the self-cleaning coating is provided on the second surface of the glass substrate, the method further includes: performing a cleaning and activation treatment on the second surface of the glass substrate. Specifically, the cleaning and activation treatment includes one or more of cerium oxide polishing, plasma treatment, flame treatment, and dry ice treatment. The above treatment is conducive to improving the bonding strength between the self-cleaning coating and the glass substrate.

[0101] It can be understood that there is no order in which to arrange the anti-fogging film layer on the first surface of the glass substrate and the self-cleaning coating layer on the second surface of the glass substrate. The anti-fogging film layer may be arranged first and then the self-cleaning coating layer, or the self-cleaning coating may be arranged first and then the anti-fogging film layer, or both layers may be arranged at the same time.

[0102] In a second aspect, the present application provides a pillar assembly, comprising the glass with a film layer according to the first aspect.

[0103] In some embodiments, the column assembly further includes a smart module, which is arranged corresponding to the visible area in the glass with the film layer, and the smart module includes one or more of a camera module, a face recognition module, and a display screen module. Specifically, the visible area in the glass with the film layer can be used as a field of view of a camera, or as a display area for face recognition.

[0104] In a third aspect, the present application provides a vehicle, comprising the glass with a film layer according to the first aspect or the pillar assembly according to the second aspect.

[0105] Specifically, the vehicle includes a vehicle body and a pillar assembly, and the pillar assembly is mounted on the vehicle body.

[0106] Specifically, when the glass with the film layer is used in a vehicle, the side with the anti-fogging film layer faces the inside of the vehicle, and the side with the self-cleaning coating faces the outside of the vehicle. The anti-fogging film layer on the inside can absorb water molecules on the glass surface in a fogging environment with a large temperature difference and high humidity to delay fogging. The self-cleaning coating on the outside has a certain water and oil repellency, is not easy to adhere to dust, drip rain, etc., and can quickly roll away dirt attached to the glass surface under the action of wind and rain, maintain the clarity of the visible area, and ensure that the smart module maintains high clarity for normal use.

[0107] Specifically, the vehicle may be one commonly used in the art and is not particularly limited herein. For example, the vehicle may be, but is not limited to, a car, a truck, a passenger car, a pickup truck, and the like.

[0108] In order to make the purpose and advantages of the present application clearer, the glass with a film layer of the present application and its effects are further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and shall not be used to limit the present application. The following embodiments do not include other components except for unavoidable impurities unless otherwise specified. The drugs and instruments used in the embodiments are conventionally selected in the art unless otherwise specified. The experimental methods for which specific conditions are not specified in the embodiments are implemented according to conventional conditions, such as the conditions described in the literature and books or the methods recommended by the manufacturer.

[0109] Example 1

[0110] This embodiment provides a glass with a film layer, including a glass substrate, the glass substrate is provided with a visible area and a non-visible area, the first surface of the glass substrate corresponding to the visible area is provided with an adhesive layer, a substrate layer and a resin functional layer in sequence, and the second surface of the glass substrate corresponding to the visible area is provided with a self-cleaning coating. Among them, the adhesive layer is a polyvinyl butyral adhesive layer (PVB adhesive layer) with a thickness of 380μm, the material of the substrate layer is cellulose acetate with a thickness of 120μm, the material of the resin functional layer includes a first polymer vinyl pyrrolidone-vinyl acetate copolymer and a second polymer hydroxyethyl cellulose with a mass ratio of 1:0.25, and the thickness is 20μm, and the material of the self-cleaning coating includes a fluorine-containing material 3,3,4,4,5,5,5-heptafluoropentyl (trimethoxy) silane and silicon dioxide particles (primary particle size is 14nm) with a mass ratio of 2:0.2.

[0111] The steps for preparing the glass with the film layer in this embodiment are as follows:

[0112] (1) Preparation of self-cleaning coating: fluorine-containing material 3,3,4,4,5,5,5-heptafluoropentyl (trimethoxy) silane, solvent ethyl nonafluorobutyl ether, and silica particles (primary particle size of 14 nm) were mixed in a mass ratio of 2:1000:0.2, and stirred to obtain a self-cleaning coating.

[0113] (2) The non-visible area of ​​the glass substrate is shielded, and the self-cleaning coating is sprayed on the outer side of the visible area of ​​the glass substrate and cured to form a self-cleaning coating.

[0114] (3) Preparing an anti-fogging film layer, the anti-fogging film layer comprising a substrate layer and a resin functional layer, wherein the substrate layer is made of cellulose acetate and has a thickness of 120 μm, and the resin functional layer comprises a first polymer vinyl pyrrolidone-vinyl acetate copolymer and a second polymer hydroxyethyl cellulose in a mass ratio of 1:0.25 and has a thickness of 20 μm.

[0115] (4) One side of the base material layer of the anti-fogging film layer is bonded to the inner side of the visible area of ​​the glass substrate through the PVB adhesive layer, and the bonding is performed at a temperature of 135° C. and a pressure of 1.2 MPa to obtain glass with an anti-fogging film layer and a self-cleaning coating.

[0116] Example 2

[0117] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Example 1, except that in the self-cleaning coating, the mass ratio of the fluorine-containing material to the silicon dioxide particles is 2:0.01; the material of the substrate layer is polyethylene terephthalate (PET). Other parameters are the same as those in Example 1 and will not be repeated.

[0118] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0119] Example 3

[0120] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that the thickness of the resin functional layer is 30 μm. Other parameters are the same as those in Embodiment 1 and will not be described in detail.

[0121] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0122] Example 4

[0123] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that in the self-cleaning coating, the mass ratio of the fluorine-containing material to the silicon dioxide particles is 2:0.5; the material of the substrate layer is polyethylene terephthalate, and the thickness of the resin functional layer is 30 μm. Other parameters are the same as those in Embodiment 1 and will not be repeated.

[0124] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0125] Example 5

[0126] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that the material of the substrate layer is polyethylene terephthalate, the thickness of the resin functional layer is 30 μm, and the bonding layer is a polyacrylate adhesive layer. Other parameters are the same as those in Embodiment 1 and will not be repeated.

[0127] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0128] Example 6

[0129] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that it does not contain a self-cleaning coating, the thickness of the resin functional layer is 30 μm, and the bonding layer is a polyacrylate adhesive layer. Other steps are the same as in Embodiment 1 and will not be repeated.

[0130] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0131] Example 7

[0132] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that the mass ratio of the first polymer to the second polymer in the resin functional layer is 1:0.5. Other parameters are the same as those in Embodiment 1 and will not be described in detail.

[0133] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0134] Example 8

[0135] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that the mass ratio of the first polymer to the second polymer in the resin functional layer is 1:0.05. Other parameters are the same as those in Embodiment 1 and will not be described in detail.

[0136] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0137] Example 9

[0138] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that the second polymer in the resin functional layer is methyl cellulose. Other parameters are the same as those in Embodiment 1 and will not be described in detail.

[0139] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0140] Example 10

[0141] This embodiment provides a glass with a film layer, which is similar to the glass with a film layer in Embodiment 1, except that in the resin functional layer, the first polymer is poly(methyl methacrylate-co-N-vinyl pyrrolidone). Other parameters are the same as those in Embodiment 1 and will not be described in detail.

[0142] The steps for preparing the glass with the film layer in this embodiment refer to those in Embodiment 1 and are not described in detail.

[0143] Comparative Example 1

[0144] Comparative Example 1 provides a glass with a film layer, which is different from the glass with a film layer in Example 1 in that it does not contain a self-cleaning coating, an anti-fogging film layer, and an adhesive layer.

[0145] Comparative Example 2

[0146] Comparative Example 2 provides a glass with a film layer, which is similar to the glass with a film layer in Example 1, except that the mass of silicon dioxide in the self-cleaning coating is 0; in step (3), the thickness of the resin functional layer is 5 μm. Other parameters are the same as those in Example 1 and are not described in detail.

[0147] The preparation steps of the glass with the film layer in Comparative Example 2 refer to those in Example 1 and are not described in detail.

[0148] Comparative Example 3

[0149] Comparative Example 3 provides a glass with a film layer, which is similar to the glass with a film layer in Example 1, except that the material of the resin functional layer does not contain the first polymer. Other parameters are the same as those in Example 1 and are not described in detail.

[0150] The preparation steps of the glass with the film layer in Comparative Example 3 refer to those in Example 1 and are not described in detail.

[0151] Comparative Example 4

[0152] Comparative Example 4 provides a glass with a film layer, which is similar to the glass with a film layer in Example 1, except that the material of the resin functional layer does not contain the second polymer. Other parameters are the same as those in Example 1 and are not described in detail.

[0153] The preparation steps of the glass with the film layer of Comparative Example 4 refer to those of Example 1 and are not described in detail.

[0154] Comparative Example 5

[0155] Comparative Example 5 provides a glass with a film layer, which is similar to the glass with a film layer in Example 1, except that it does not contain a substrate layer, and the resin functional layer is bonded to the inner side of the visible area of ​​the glass substrate through a PVB adhesive layer. Other parameters are the same as those in Example 1 and are not repeated here.

[0156] The preparation steps of the glass with the film layer in Comparative Example 5 refer to those in Example 1 and are not described in detail.

[0157] The thickness of each layer in the above embodiments and comparative examples was measured using a step profiler.

[0158] The main process parameters in the preparation process of the glass with film layer in the above embodiments and comparative examples are shown in Tables 1 and 2 below.

[0159] Table 1 Main process parameters of each embodiment

[0160]

[0161] Table 2 Main process parameters of each comparative example

[0162]

[0163] The following is the specific test part:

[0164] The glass samples with film layers of each embodiment and each comparative example were subjected to the following tests, and the test results are shown in Table 3.

[0165] (1) Contact angle: The sample was measured using a German Krüss MSA portable contact angle meter. A 3 μL droplet was dripped into the sample. The water and oil droplets were provided by deionized water and diiodomethane, respectively.

[0166] The contact angles in Table 3 below are average values ​​obtained by measuring three different points on the same sample.

[0167] (2) 35°C water bath anti-fog test: Place the glass sample with the film layer in a 20°C, 50% RH environment for 1 h, then transfer it to a container of more than 100 mL filled with 35°C water, and record the time (s) when fogging begins.

[0168] (3) Water splashing anti-fog test: Place the glass sample with the film layer in a 50℃, 95%RH environment for 12 hours. After taking it out, pour 5℃ cold water on the visible area for 1 minute to observe whether the surface inside the visible area is fogged.

[0169] Table 3 Test results of glass with film layer in various embodiments and comparative examples

[0170]

[0171] From Table 3 we can see that:

[0172] Without adding the anti-fogging film layer, the anti-fogging effect is poor. After setting the self-cleaning coating on the glass substrate, the water contact angle of the glass with the film layer reached more than 110°, and the oil contact angle was more than 90°. By optimizing the addition amount of silica particles, the water-oil contact angle can be moderately increased within a certain range.

[0173] In addition, it can be seen from the comparison of Examples 1 to 4 that the thicker the resin functional layer in the anti-fogging film layer, the better the anti-fogging effect. Cellulose acetate as a substrate layer has a positive effect on the anti-fogging property of the film layer compared to the PET substrate layer.

[0174] From the comparison between Example 1 and Comparative Examples 3 and 4, it can be seen that the resin functional layer does not contain the first polymer or the second polymer, and the anti-fogging effect is significantly poor. From the comparison between Example 1 and Comparative Example 5, it can be seen that the anti-fogging film layer does not contain the substrate layer, the anti-fogging effect is poor, and the coating is peeling.

[0175] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0176] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the scope of protection of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the scope of protection of the claims attached to the present application. Therefore, the scope of protection of the patent of this application shall be based on the contents of the attached claims, and the description and drawings can be used to explain the contents of the claims.

Claims

1. A glass with a film layer, characterized in that: include: A glass substrate, wherein the glass substrate is provided with a visible area; An anti-fogging film layer, the anti-fogging film layer is disposed on the first surface of the glass substrate and at least covers the visible area; The anti-fogging film layer includes a stacked substrate layer and a resin functional layer, wherein the substrate layer is closer to the glass substrate than the resin functional layer, and the material of the resin functional layer includes a first polymer and a second polymer, wherein the first polymer has a pyrrolidone group and the second polymer has a hydroxyl group.

2. The glass with a film layer according to claim 1, characterized in that: The thickness of the resin functional layer is greater than or equal to 5 μm; Optionally, the thickness of the resin functional layer is 5 μm to 100 μm.

3. The glass with a film layer according to claim 1 or 2, characterized in that: Meet one or more of the following conditions: (1) The mass ratio of the first polymer to the second polymer is 1:(0.01-0.5); (2) The first polymer includes a polymer of a vinyl pyrrolidone compound such as N-vinyl-2-pyrrolidone and N-vinylethyl-2-pyrrolidone; optionally, the first polymer includes one or more of vinyl pyrrolidone-vinyl acetate copolymer and poly(methyl methacrylate-co-N-vinyl pyrrolidone); (3) The second polymer includes one or more of cellulose polymers, chitosan polymers, cyclodextrin polymers and polyvinyl alcohol polymers.

4. The glass with a film layer according to claim 3, characterized in that: The cellulose polymer includes one or more of cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, methyl-2-hydroxyethyl cellulose and hydroxypropyl methyl cellulose; The chitosan polymer includes one or more of chitosan and hydroxypropyl chitosan; The cyclodextrin polymer includes one or more of cyclodextrin and 2-hydroxypropyl-β-cyclodextrin; The polyvinyl alcohol polymer includes one or more of polyvinyl alcohol and polyvinyl butyral.

5. The glass with a film layer according to claim 1, characterized in that: The material of the substrate layer includes one or more of cellulose acetate and polyethylene terephthalate.

6. The glass with a film layer according to claim 1, 2, 4 or 5, characterized in that: The thickness of the substrate layer is greater than 10 μm; Optionally, the substrate layer has a thickness of 10 μm to 200 μm.

7. The glass with a film layer according to claim 1, 2, 4 or 5, characterized in that: The anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 70 seconds.

8. The glass with a film layer according to claim 7, characterized in that: The anti-fogging time of the anti-fogging film layer in a 35° C. water bath anti-fogging test is greater than or equal to 90 seconds.

9. The glass with a film layer according to claim 1, 2, 4 or 5, characterized in that: The change value of the visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 2%; Optionally, a change in visible light transmittance of the glass substrate before and after the anti-fogging film layer is provided is less than or equal to 1%.

10. The glass with a film layer according to claim 1, characterized in that: The invention also comprises an adhesive layer, wherein the adhesive layer is arranged between the anti-fogging film layer and the glass substrate, and the anti-fogging film layer is arranged on the glass substrate through the adhesive layer.

11. The glass with a film layer according to claim 10, characterized in that: The material of the bonding layer includes one or more of polyvinyl butyral, ethylene-vinyl acetate copolymer, silicone resin, unsaturated polyester, polyurethane and polyacrylate resin.

12. The glass with a film layer according to any one of claims 1, 2, 4, 5, 8 or 10-11, characterized in that: It also includes a heating layer or a heating wire, which is arranged on the first surface of the glass substrate, and the anti-fogging film layer is arranged on a side of the heating layer or the heating wire away from the glass substrate.

13. The glass with a film layer according to any one of claims 1, 2, 4, 5, 8 or 10-11, characterized in that: It also includes a self-cleaning coating, which is arranged on the second surface of the glass substrate. The second surface is arranged opposite to the first surface, and the self-cleaning coating at least covers the visible area.

14. The glass with a film layer according to claim 13, characterized in that: The material of the self-cleaning coating includes a fluorine-containing material and silicon dioxide particles in a mass ratio of (2-20): (0.01-0.5).

15. The glass with a film layer according to claim 13, characterized in that: The water contact angle of the self-cleaning coating is greater than or equal to 110°, and the oil contact angle is greater than or equal to 90°; and / or, The thickness of the self-cleaning coating is below 200 nm.

16. A column assembly, characterized in that: The invention relates to a glass with a film layer comprising the glass with a film layer as described in any one of claims 1 to 15.

17. The column assembly according to claim 16, characterized in that: It also includes a smart module, which is arranged corresponding to the visible area in the glass with the film layer, and the smart module includes one or more of a camera module, a face recognition module and a display screen module.

18. A vehicle, characterized in that: It comprises the glass with a film layer as described in any one of claims 1 to 15 or the column assembly as described in claim 16 or 17.

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