CN110642528A - Sterilizing self-cleaning glass and production process thereof - Google Patents

Abstract

The invention provides a sterilization self-cleaning glass and a production process thereof, wherein the glass comprises the following components: a glass substrate; si laminated on the surface layer of the glass substrate from bottom to top₃N₄Layer, SnO_xLayer and TiO_xAnd (3) a layer. The glass is provided with Si on the surface layer of the glass substrate in a laminating way₃N₄Layer, SnO_xLayer and TiO_xLayer of TiO therein_xLayer passing through N₂、O₂And Ar gas are mixed as reaction gas to form TiO on the surface of the glass substrate by magnetron sputtering_xThe layer ensures that the glass has good sterilization and self-cleaning capabilities, and the surface layer of the glass is formed by TiO_xThe setting on layer under sunshine shines, can decompose the bacterium that the organic matter formed, reinforcing bactericidal effect, glass visible light transmissivity is high, and production low in manufacturing cost, economic benefits is good.

Description

Sterilizing self-cleaning glass and production process thereof

Technical Field

The invention belongs to the technical field of glass production, and particularly relates to sterilizing self-cleaning glass and a production process thereof.

Background

Glass is an amorphous inorganic non-metallic material, and is generally prepared by using various inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash and the like) as main raw materials and adding a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides. The chemical composition of the ordinary glass is Na₂SiO₃、CaSiO₃、SiO₂Or Na₂O·CaO·6SiO₂And the main component is silicate double salt which is amorphous solid with a random structure. The light-transmitting composite material is widely applied to buildings, is used for isolating wind and transmitting light, and belongs to a mixture. In addition haveColored glass in which an oxide or salt of a certain metal is mixed to develop a color, tempered glass produced by a physical or chemical method, or the like. Some transparent plastics, such as polymethylmethacrylate, are sometimes also referred to as plexiglas.

Chinese patent publication No. CN2702996 discloses float on-line self-cleaning bactericidal glass, which comprises a float glass plate, and an on-line processing method adopted in an annealing kiln of a float glass production line on the upper surface of the glass plate, wherein gas phase SiO is firstly attached and plated₂Or silica sol to form a diffusion preventing layer, and then plating a titanium compound on the diffusion layer to form the photocatalytic layer. Because the anti-diffusion layer is arranged between the glass plate and the photocatalytic layer, the problem that the photocatalytic function of the self-cleaning glass is decreased gradually is effectively solved, and the self-cleaning and sterilization functions of the product are ensured for a long time. However, the self-cleaning sterilizing glass provided by the patent has weak ultraviolet resistance and high production and manufacturing costs.

Disclosure of Invention

In order to solve the problems, the invention aims to provide the sterilizing self-cleaning glass and the production process thereof, wherein the glass is formed by laminating Si on the surface layer of a glass substrate₃N₄Layer, SnO_xLayer and TiO_xLayer of TiO therein_xLayer passing through N₂、O₂And Ar gas are mixed as reaction gas to form TiO on the surface of the glass substrate by magnetron sputtering_xThe layer ensures that the glass has good sterilization and self-cleaning capabilities, and the surface layer of the glass is formed by TiO_xThe setting on layer under sunshine shines, can decompose the bacterium that the organic matter formed, reinforcing bactericidal effect, glass visible light transmissivity is high, and production low in manufacturing cost, economic benefits is good.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a bactericidal self-cleaning glass, comprising: a glass substrate; si laminated on the surface layer of the glass substrate from bottom to top₃N₄Layer, SnO_xLayer and TiO_xAnd (3) a layer.

Furthermore, the visible light transmittance of the sterilizing self-cleaning glass is less than or equal to 80.

Further, said Si₃N₄The thickness of the layer was 40 ~ 45 nm.

Further, the SnO_xThe thickness of the layer was 20 ~ 25 nm.

Further, the TiO_xThe layer thickness was 40 ~ 50 nm.

Meanwhile, the invention also provides a production process of the sterilizing self-cleaning glass, which comprises the following steps:

1) taking a glass substrate, conveying the glass substrate into a magnetron sputtering coating chamber, and adopting a direct current power supply and N₂And Ar gas, wherein N in the mixed gas is used as a reaction gas₂And Ar in a ratio of 80: 20, the pressure of the reaction gas is 2.0mt, and Si is magnetically sputtered on the surface layer of the glass substrate₃N₄A layer;

2) using a DC power supply with O₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂And Ar in a ratio of 80: 20, gas pressure of the reaction gas was 2.0mt in Si₃N₄SnO is magnetically sputtered on one surface of layer far away from glass substrate_xA layer;

3) using a DC power supply with O₂、N₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂、N₂And Ar in a ratio of 40: 40: 20, the pressure of the reaction gas is 2.0mt, in the SnO_xLayer away from Si₃N₄Layer one side of the film is coated with TiO by magnetron sputtering_xAnd (4) obtaining the sterilizing self-cleaning glass.

The invention has the beneficial effects that:

the glass is provided with Si on the surface layer of the glass substrate in a laminating way₃N₄Layer, SnO_xLayer and TiO_xLayer of TiO therein_xLayer passing through N₂、O₂And Ar gas are mixed as reaction gas to form TiO on the surface of the glass substrate by magnetron sputtering_xThe layer ensures that the glass has good sterilization and self-cleaning capabilities, and the surface layer of the glass is formed by TiO_xThe layer is arranged under the irradiation of sunlightThe glass decomposes bacteria formed by organic matters, enhances the sterilization effect, and has high visible light transmittance, low production and manufacturing cost and good economic benefit.

Drawings

FIG. 1 is a schematic structural view of the self-cleaning glass with sterilization provided by the invention.

Detailed Description

Referring to fig. 1, the self-cleaning glass with sterilization function of the invention comprises: a glass substrate 1; si laminated on the surface layer of the glass substrate 1 from bottom to top₃N₄Layer 2, SnO_xLayer 3 and TiO_xAnd (4) a layer.

Furthermore, the visible light transmittance of the sterilizing self-cleaning glass is less than or equal to 80.

Further, said Si₃N₄The thickness of layer 2 was 40 ~ 45 nm.

Further, the SnO_xThe thickness of layer 3 was 20 ~ 25 nm.

Further, the TiO_xThe thickness of layer 4 was 40 ~ 50 nm.

Meanwhile, the invention also provides a production process of the sterilizing self-cleaning glass, which comprises the following steps:

1) taking a glass substrate 1, conveying the glass substrate into a magnetron sputtering coating chamber, and adopting a direct current power supply and N₂And Ar gas, wherein N in the mixed gas is used as a reaction gas₂And Ar in a ratio of 80: 20, the pressure of the reaction gas is 2.0mt, and Si is magnetically sputtered on the surface layer of the glass substrate₃N₄A layer 2;

2) using a DC power supply with O₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂And Ar in a ratio of 80: 20, gas pressure of the reaction gas was 2.0mt in Si₃N₄SnO is magnetically sputtered on one surface of layer 2 far away from glass substrate 1_x A layer 3;

3) using a DC power supply with O₂、N₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂、N₂And Ar in a ratio of 40: 40: 20, reaction gasAt a gas pressure of 2.0mt in said SnO_xLayer 3 away from Si₃N₄ Layer 2 one side of the layer being made of TiO by magnetron sputtering_xAnd 4, obtaining the sterilizing self-cleaning glass.

The invention relates to a sterilization self-cleaning glass, wherein Si is laminated on the surface layer of a glass substrate₃N₄Layer, SnO_xLayer and TiO_xLayer of TiO therein_xLayer passing through N₂、O₂And Ar gas are mixed as reaction gas to form TiO on the surface of the glass substrate by magnetron sputtering_xThe layer ensures that the glass has good sterilization and self-cleaning capabilities, and the surface layer of the glass is formed by TiO_xThe setting on layer under sunshine shines, can decompose the bacterium that the organic matter formed, reinforcing bactericidal effect, glass visible light transmissivity is high, and production low in manufacturing cost, economic benefits is good.

It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present invention.

Claims (6)

1. A bactericidal self-cleaning glass, characterized in that the glass comprises:

a glass substrate;

si laminated on the surface layer of the glass substrate from bottom to top₃N₄Layer, SnO_xLayer and TiO_xAnd (3) a layer.

2. The bactericidal self-cleaning glass according to claim 1, wherein the visible light transmittance of the bactericidal self-cleaning glass is less than or equal to 80.

3. The bactericidal self-cleaning glass of claim 1, wherein the Si is₃N₄The thickness of the layer was 40 ~ 45 nm.

4. The bactericidal self-cleaning glass according to claim 1, wherein the SnO_xThe thickness of the layer was 20 ~ 25 nm.

5. The bactericidal self-cleaning glass of claim 1, wherein the TiO is selected from the group consisting of_xThe layer thickness was 40 ~ 50 nm.

6. A process for producing a bactericidal self-cleaning glass as claimed in any one of claims 1 ~ 5, wherein the process comprises the steps of:

1) taking a glass substrate, conveying the glass substrate into a magnetron sputtering coating chamber, and adopting a direct current power supply and N₂And Ar gas, wherein N in the mixed gas is used as a reaction gas₂And Ar in a ratio of 80: 20, the pressure of the reaction gas is 2.0mt, and Si is magnetically sputtered on the surface layer of the glass substrate₃N₄A layer;

2) using a DC power supply with O₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂And Ar in a ratio of 80: 20, gas pressure of the reaction gas was 2.0mt in Si₃N₄SnO is magnetically sputtered on one surface of layer far away from glass substrate_xA layer;

3) using a DC power supply with O₂、N₂And Ar gas as a reaction gas, wherein O is contained in the gas mixture₂、N₂And Ar in a ratio of 40: 40: 20, the pressure of the reaction gas is 2.0mt, in the SnO_xLayer away from Si₃N₄Layer one side of the film is coated with TiO by magnetron sputtering_xAnd (4) obtaining the sterilizing self-cleaning glass.

Images