Coated glass with self-cleaning function

Abstract

The utility model discloses coated glass with a self-cleaning function. The coated glass comprises a basic glass layer serving as a supporting substrate, the photocatalytic layer is arranged above the basic glass layer and is used for catalytically decomposing organic matters under the irradiation of ultraviolet light to realize self-cleaning; the super-hydrophilic layer is arranged on the outer side of the photocatalytic layer; the self-cleaning super-hydrophilic photochromic glass has the advantages that multiple functions of self-cleaning, super-hydrophilic and photochromic are integrated in the glass, so that the glass not only can be self-cleaned, but also can be used for automatically adjusting the light transmission according to illumination conditions, and the self-cleaning super-hydrophilic photochromic glass has the advantages of being simple in structure and convenient to use. The user experience and the comfort level are effectively improved; the titanium dioxide photocatalytic layer is used for decomposing organic pollutants under the irradiation of ultraviolet light, and the design of the super-hydrophilic layer is combined, so that dust and pollutants can be effectively removed, and the frequency and cost of cleaning and maintenance are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coated glass, in particular to a coated glass with a self-cleaning function. Background Art

[0002] Coated glass, also known as reflective glass, is a glass product that is coated with one or more layers of metal, alloy or metal compound film on the surface of the glass to change the optical properties of the glass and meet certain specific requirements; such as heat-reflective glass and low-emissivity glass (Low-E). The surface of heat-reflective glass is coated with one or more layers of thin films composed of metals such as chromium, titanium or stainless steel or their compounds, and is mainly used in buildings and glass curtain walls. The surface of low-emissivity glass (Low-E) is coated with a thin film system composed of multiple layers of metals such as silver, copper or tin or their compounds, and is mainly used in buildings and transportation vehicles such as automobiles and ships.

[0003] Existing coated glass does not have a self-cleaning function, cannot effectively remove dust and pollutants, reduce the frequency and cost of cleaning and maintenance, and cannot automatically adjust light transmittance according to lighting conditions, and cannot effectively improve user experience and comfort. Utility Model Content

[0004] The utility model aims to provide a coated glass with a self-cleaning function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a coated glass with self-cleaning function, comprising:

[0006] A base glass layer as a supporting substrate;

[0007] A photocatalytic layer, which is placed above the base glass layer and is used to catalytically decompose organic matter under the irradiation of ultraviolet light to achieve self-cleaning;

[0008] A super hydrophilic layer, which is disposed outside the photocatalytic layer;

[0009] The photochromic layer is arranged on the outer side of the super-hydrophilic layer and is used for changing transparency under light and automatically adjusting light transmittance.

[0010] Preferably, a bottom film is provided between the base glass layer and the photocatalytic layer to improve the adhesion between the upper layer material and the base glass.

[0011] Preferably, a protective layer is disposed on the outer side of the photochromic layer, and the protective layer is a transparent protective film made of silicon dioxide.

[0012] Preferably, the photocatalytic layer is a titanium dioxide nanofilm.

[0013] Preferably, the photochromic layer is made of photochromic molecular material.

[0014] Preferably, the photochromic molecular material is tungsten oxide.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: self-cleaning, super-hydrophilic, and photochromic functions are integrated into the glass, so that the glass is not only self-cleaning, but also can automatically adjust light transmittance according to lighting conditions, effectively improving user experience and comfort; the titanium dioxide photocatalytic layer decomposes organic pollutants under ultraviolet light, and combined with the design of the super-hydrophilic layer, it can effectively remove dust and pollutants, reducing the frequency and cost of cleaning and maintenance; the photochromic layer adjusts the light and heat entering the room by changing the transparency, which helps to save energy consumption for air conditioning and lighting; at the same time, the protective layer can prevent the external environment from damaging the functional layer, thereby enhancing the durability and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] In the figure: 2. Base glass layer; 3. Bottom film; 4. Photocatalytic layer; 5. Super hydrophilic layer; 6. Photochromic layer; 7. Protective layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 As shown, the utility model provides a technical solution: a coated glass with a self-cleaning function, comprising: a base glass layer 2 as a supporting substrate; a photocatalytic layer 4 is arranged above the base glass layer 2, and is used for catalytically decomposing organic matter under the irradiation of ultraviolet light to achieve self-cleaning; a super hydrophilic layer 5 is arranged on the outside of the photocatalytic layer 4; a photochromic layer 6 is arranged on the outside of the super hydrophilic layer 5, and is used for changing transparency under light and automatically adjusting light transmittance.

[0020] It should be noted that the basic glass layer 2 of the utility model serves as the supporting base of the entire structure and carries various functional layers. The basic glass layer 2 uses ordinary float glass or tempered glass, which has good mechanical strength and light transmittance. The photocatalytic layer 4 uses photocatalytic materials to catalytically decompose organic matter, such as dust and pollutants, under ultraviolet light, thereby achieving a self-cleaning function. The super-hydrophilic layer 5 provides super-hydrophilic properties, so that water molecules can form a thin film on the surface instead of droplets, which helps to remove the decomposed pollutants and further enhance the self-cleaning effect. It is formed by chemical or physical coating using silane compounds or other surface modification materials. The photochromic layer 6 changes its transparency under light, especially ultraviolet light, and is used to automatically adjust the light transmittance and reduce the heat and light intensity caused by direct sunlight.

[0021] See also Figure 1 As shown, a bottom film 3 is provided between the base glass layer 2 and the photocatalytic layer 4 to improve the adhesion between the upper layer material and the base glass.

[0022] It should be noted that the bottom film 3 of the utility model includes materials such as silane coupling agent, which is used to improve the bonding strength between the upper film and the base glass. The bottom film serves as an interface layer, effectively promoting the bonding between the upper photocatalytic material and the lower base glass, thereby improving the durability and efficiency of the entire structure.

[0023] See also Figure 1 As shown, a protective layer 7 is disposed on the outer side of the photochromic layer 6 , and the protective layer 7 is a transparent protective film made of silicon dioxide.

[0024] It should be noted that the transparent protective film made of silicon dioxide in the present invention protects the photochromic layer from damage by external factors, such as ultraviolet rays, pollutants and mechanical wear, etc. The protective layer 7 can improve the service life and reliability of the entire device.

[0025] See also Figure 1 As shown, the photocatalytic layer 4 is a titanium dioxide nanofilm.

[0026] It should be noted that the titanium dioxide (TiO2) of the utility model has strong photocatalytic activity under sunlight or ultraviolet light, can decompose organic pollutants and some inorganic substances, and the photocatalytic material can be coated on the base glass layer by sol-gel method, chemical vapor deposition or magnetron sputtering.

[0027] See also Figure 1 As shown, the photochromic layer 6 is made of a photochromic molecular material, and the photochromic molecular material is tungsten oxide.

[0028] It should be noted that the tungsten oxide of the utility model has unique photoelectrochemical properties and can change color under ultraviolet light. Under light conditions, tungsten oxide can insert and extract lithium ions or hydrogen ions in its crystal structure, thereby changing its optical properties. When ions are inserted, the color of tungsten oxide changes from transparent or light color to dark blue or gray, and when ions are extracted, the color is restored, and it can automatically darken under strong light, reduce glare and heat entry, and restore transparency when the light is weakened.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning coated glass, characterized in that: include: A base glass layer (2) as a supporting substrate; A photocatalytic layer (4), the photocatalytic layer (4) is disposed above the base glass layer (2) and is used for catalytically decomposing organic matter under the irradiation of ultraviolet light to achieve self-cleaning; A super hydrophilic layer (5), the super hydrophilic layer (5) being disposed on the outer side of the photocatalytic layer (4); The photochromic layer (6) is disposed on the outer side of the super-hydrophilic layer (5) and is used to change transparency under light and automatically adjust light transmittance.

2. The self-cleaning coated glass according to claim 1, characterized in that: A bottom film (3) is provided between the base glass layer (2) and the photocatalytic layer (4) to improve the adhesion between the upper layer material and the base glass.

3. The self-cleaning coated glass according to claim 1, characterized in that: A protective layer (7) is provided on the outer side of the photochromic layer (6); the protective layer (7) is a transparent protective film made of silicon dioxide.

4. The self-cleaning coated glass according to claim 1, characterized in that: The photocatalytic layer (4) is a titanium dioxide nanofilm.

5. The self-cleaning coated glass according to claim 1, characterized in that: The photochromic layer (6) is made of photochromic molecular material.

6. The self-cleaning coated glass according to claim 5, characterized in that: The photochromic molecular material is tungsten oxide.

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