CN112159116B

CN112159116B - Neutral gray temperable double-silver Low-E coated glass

Info

Publication number: CN112159116B
Application number: CN202011127807.3A
Authority: CN
Inventors: 阮泽云; 赵晓非; 刘志健
Original assignee: Flat Glass Group Co Ltd
Current assignee: Flat Glass Group Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2022-09-30
Anticipated expiration: 2040-10-20
Also published as: CN112159116A

Abstract

The invention discloses neutral gray temperable double-silver Low-E coated glass, which comprises a glass substrate, wherein fourteen film layers are sequentially plated on the surface of the glass substrate by a vacuum magnetron sputtering method, wherein the first film layer is a ZTO film layer, the second film layer is an AZO film layer, the third film layer is a Ti film layer, the fourth film layer is an Ag film layer, the fifth film layer is a Ti film layer, the sixth film layer is an AZO film layer, the seventh film layer is a ZTO film layer, the eighth film layer is an AZO film layer, the ninth film layer is a Ti film layer, the tenth film layer is an Ag layer, the eleventh film layer is a Ti film layer, the twelfth film layer is an AZO film layer, the thirteenth film layer is a ZTO film layer, and the fourteenth film layer is a ZrO2 film layer; according to the invention, through reasonable selection of materials and reasonable arrangement of film layer structures, the bonding force between different film layers is enhanced, and simultaneously, the double-silver Low-E coated glass with neutral gray color after tempering can be adjusted.

Description

Neutral gray temperable double-silver Low-E coated glass

Technical Field

The invention belongs to the technical field of vacuum magnetron sputtering coated glass, and particularly relates to neutral gray temperable double-silver Low-E coated glass.

Background

As an excellent building material, glass has the functions of light transmission, wind and snow resistance due to good permeability, and is widely applied to buildings. With the development of modern science and technology, glass is endowed with various new connotations, wherein the Low-E glass is widely applied to the field of building curtain walls with rich color, better texture and excellent energy-saving characteristic. Low-E coated glass is short for Low-emissivity coated glass, and a nano film layer is deposited on the surface of a glass substrate by using an off-line vacuum magnetron sputtering method, so that the photo-thermal property of the glass is changed, and the aims of decoration, energy conservation, environmental protection and the like are fulfilled.

As an energy-saving building material, compared with common glass and heat reflection and single-silver Low-E coated glass, the energy-saving characteristic of the double-silver Low-E coated glass has higher reflectivity for far infrared radiation. Can keep the indoor temperature stable, reduce the energy consumption of building heating or refrigeration, play very excellent energy saving and consumption reduction effect. The project of the domestic market public construction under the national policy of energy conservation and emission reduction and the promotion of glass deep processing enterprises, which adopts double-silver Low-e coated glass, is increased year by year.

The machinable double-silver Low-E coated glass which can be tempered in different places and is produced by a vacuum magnetron sputtering method in the market at present tends to be mature, but due to the film layer structure and the selection of target materials, even if the outdoor reflection color presents color data of neutral gray, the visual effect after the glass is placed on the wall is green and the effect of the neutral gray cannot be seen due to the green color, or the film layer can not be tempered and can not be machined in different places, and only can be tempered and then coated. Because the visual effect of the glass with the color of neutral gray on the wall is more and more popular, deep processing enterprises have more and more requirements on the neutral gray temperable double-silver Low-E coated glass which can be processed in different places, reasonable material selection and film structure design have great importance on the influence of outdoor reflection color, transmission color and reworkability of the temperable double-silver Low-E coated glass, the film thickness and thickness uniformity are key factors for determining the color and uniformity of the coated glass, and the film thickness and thickness uniformity are bottlenecks and difficulties in design and production of the current neutral gray temperable double-silver Low-E coated glass.

Disclosure of Invention

The invention aims to provide the temperable double-silver Low-E coated glass which is reasonable in film layer structure, uniform in film layer deposition distribution and neutral gray in both transmission color and outdoor color. The invention aims to solve the technical problem that a proper material is selected to achieve the effect of neutral gray color through the design of a coating layer and the thickness proportion among film layers.

In order to achieve the purpose, the neutral gray temperable double-silver Low-E coated glass provided by the invention comprises a glass substrate and is characterized in that thirteen film layers are sequentially plated on the surface of the glass substrate by adopting a vacuum magnetron sputtering method, wherein the first film layer is a ZTO film layer (the thickness of the film layer is 25-35nm), the second film layer is an AZO film layer (the thickness of the film layer is 5-8nm), the third film layer is a Ti film layer (the thickness of the film layer is 0.5-2nm), the fourth film layer is an Ag film layer (the thickness of the film layer is 7-10nm), the fifth film layer is a Ti film layer (the thickness of the film layer is 0.5-2nm), the sixth film layer is an AZO film layer (the thickness of the film layer is 5-8nm), the seventh film layer is a ZTO film layer (the thickness of 65-75nm), the eighth film layer is an AZO film layer (the thickness of the film layer is 5-8nm), the ninth film layer is a Ti film layer (the thickness of the film layer is 0.5-2nm), the tenth film layer is an Ag film layer (with a film thickness of 8-12nm), the eleventh film layer is a Ti film layer (with a film thickness of 0.5-2nm), the twelfth film layer is an AZO film layer (with a film thickness of 5-8nm), the thirteenth film layer is a ZTO film layer (with a film thickness of 25-35nm), and the fourteenth film layer is a ZrO2 film layer (with a film thickness of 1-5 nm).

According to the invention, the ZTO film layers are arranged on the bottom layer, the middle layer and the top layer to serve as dielectric layers, the Ti film layers and the AZO film layers are sequentially and symmetrically arranged on two sides of the Ag film layer, and the ZrO2 at the topmost layer serves as a protective layer. The neutral gray temperable double-silver Low-E coated glass is prepared into 6mm neutral gray temperable double-silver Low-E glass +12A +6mm common tempered white glass hollow glass after tempering heat treatment:

visible light transmittance T: t is more than or equal to 40 percent and less than or equal to 75 percent

Visible light transmission colors at, bt: -2 ≤ at ≤ 1; -2. ltoreq. bt. ltoreq.1

Visible light glass surface reflectance Rout: rout is more than or equal to 8 percent and less than or equal to 20 percent

Visible light glass surface color aout, bout: -1 ≦ aout ≦ 0; -2. ltoreq. bout. ltoreq. 4

Visible light film surface reflection Rin: rin is less than or equal to 10 percent,

color ain, bin of visible light film surface: -5 ≤ ain ≤ 3, and bin ≤

Finally, the colors of the outdoor reflection and the transmission are kept neutral gray.

The heat transfer coefficient U value and the shading coefficient Sc value of two important energy-saving indexes are as follows: u is less than or equal to 1.7, and Sc is less than or equal to 0.45.

Drawings

FIG. 1 is a schematic structural view of the present invention;

the labels in the figures are: 1-a first film layer, 2-a second film layer, 3-a third film layer, 4-a fourth film layer, 5-a fifth film layer, 6-a sixth film layer, 7-a seventh film layer, 8-an eighth film layer, 9-a ninth film layer, 10-a tenth film layer, 11-an eleventh film layer, 12-a twelfth film layer, 13-a thirteenth film layer, 14-a fourteenth film layer and 15-a glass substrate.

The invention is described in detail below with reference to fig. 1.

Detailed Description

Referring to fig. 1, the neutral gray temperable double-silver Low-E coated glass comprises a glass substrate 15 and fourteen film layers sequentially plated on the surface of the glass substrate 15 by a vacuum magnetron sputtering method. The glass substrate 15 may be float glass or ultra-white float glass. Wherein first rete is ZTO rete (1), the second rete is AZO rete (2), the third rete is Ti rete (3), the fourth rete is Ag rete (4), the fifth rete is Ti rete (5), the sixth rete is AZO rete (6), the seventh rete is ZTO rete (7), the eighth rete is AZO rete (8), the ninth rete is Ti rete (9), the tenth rete is Ag layer (10), eleventh rete Ti rete (11), the twelfth rete is AZO rete (12), the thirteenth rete is ZTO rete (13), the fourteenth rete is ZrO2 rete (14).

The first film ZTO film 1 is a bottom layer, and is formed directly on the surface of the glass substrate 14 by magnetron sputtering using zinc tin oxide (52% ZnO, 48% SnO2) as a target. The seventh film layer ZTO film layer 7 is the middle layer, the thirteenth film layer ZTO film layer 13 is the top layer, and the two layers are also formed by magnetron sputtering using zinc tin oxide as a target. The bottom layer, the middle layer and the top layer are all zinc tin oxide film layers, the zinc tin oxide film layers have good binding force with glass, the chemical stability is good, the visible light transmittance is high, and the refractive index is about 2. As the dielectric layer can well combine the AZO film layer and the Ag film layer, the whole film layer has wide color range due to good visible light transmittance and suitable refractive index adjustment, and the zinc tin oxide film layer 13 plays a good top layer protection role.

The second film layer, the sixth film layer, the eighth film layer and the twelfth film layer are AZO film layers, the aluminum-doped zinc oxide is used as a target material, and the film layers are formed by a magnetron sputtering method.

The third film layer, the fifth film layer, the ninth film layer and the eleventh film layer are Ti film layers, titanium is used as a target material, and a magnetron sputtering method is adopted for forming. The Ti film layers are arranged on two sides of the functional layer Ag film layer and are anti-oxidation protection layers of the Ag film layer, the anti-oxidation protection layers have good anti-oxidation performance, the Ti film layers can be used as protection layers (sacrificial layers) of the Ag layer to be partially oxidized in the toughening process of the temperable double-silver Low-E glass, in the partial oxidation process, the visible light transmittance of the film layers can be improved, and the color is more transparent.

The fourteenth film layer is a ZrO2 film layer at the topmost layer, and is formed by using zirconium oxide as a target material and adopting a magnetron sputtering method. The ZrO2 film has high hardness, excellent acid, alkali and weather resistance and excellent mechanical properties such as scratch resistance, and the reprocessing capability of the whole coated glass is greatly improved by selecting the material as a top protective layer.

In the production process, the uniformity of the thickness of the film layer can be ensured by repeatedly adjusting the magnetic field intensity of each adjusting point of the cathode magnetic steel and the supply amount of the process gas, and the color uniformity of the cathode magnetic steel is also ensured. The overall appearance effect of neutral gray color can be obtained by adjusting the film layer mainly comprising the dielectric layer zinc tin oxide film layer.

According to the invention, the bottom layer, the middle layer and the top layer are provided with the zinc tin oxide film layers, the Ti film layers and the AZO film layers are sequentially and symmetrically arranged on two sides of the Ag film layer, through reasonable arrangement of the film layer structures, the adhesive force among different film layers is enhanced, and simultaneously, the good Na ion diffusion prevention and Ag film layer protection effects are achieved, and after the neutral temperable double-silver Low-E coated glass is subjected to tempering heat treatment, the hollow glass is prepared into hollow glass main parameters of 6mm neutral gray temperable double-silver Low-E glass and 12A +6mm common temperable white glass:

color ain, bin of visible light film surface: -5 ≦ ain ≦ 3, bin ≦ 3

In view of the foregoing, it will be seen that the present invention is one well adapted to attain all ends and objectives hereinabove set forth, which are believed to be part of the objectives and intended to be part of the specification.

Claims

1. The neutral gray temperable double-silver Low-E coated glass is characterized by comprising a glass substrate layer and a coated layer, wherein fourteen film layers are sequentially coated on the surface of a glass substrate (15) by a vacuum magnetron sputtering method, wherein the first film layer is a ZTO film layer (1), the second film layer is an AZO film layer (2), the third film layer is a Ti film layer (3), the fourth film layer is an Ag film layer (4), the fifth film layer is a Ti film layer (5), the sixth film layer is an AZO film layer (6), the seventh film layer is a ZTO film layer (7), the eighth film layer is an AZO film layer (8), the ninth film layer is a Ti film layer (9), the tenth film layer is an Ag layer (10), the eleventh film layer is a Ti film layer (11), the twelfth film layer is an AZO film layer (12), the thirteenth film layer is a ZTO film layer (13), and the fourteenth film layer is a ZrO2 film layer (14);

the thickness of the first film layer is 25-35nm, the thickness of the second film layer is 5-8nm, the thickness of the third film layer is 0.5-2nm, the thickness of the fourth film layer is 7-10nm, the thickness of the fifth film layer is 0.5-2nm, the thickness of the sixth film layer is 5-8nm, the thickness of the seventh film layer is 65-75nm, the thickness of the eighth film layer is 5-8nm, the thickness of the ninth film layer is 0.5-2nm, the thickness of the tenth film layer is 8-12nm, the thickness of the eleventh film layer is 0.5-2nm, the thickness of the twelfth film layer is 5-8nm, the thickness of the thirteenth film layer is 25-35nm, and the thickness of the fourteenth film layer is 1-5 nm;

the ZTO film layer is made of 52% ZnO and 48% SnO ₂ The zinc tin oxide is used as a target material to be formed by magnetron sputtering;

the neutral gray temperable double-silver Low-E coated glass is subjected to tempering heat treatment and is prepared into hollow glass of 6mm neutral gray temperable double-silver Low-E glass and 12A +6mm common temperable white glass, and the main parameters are as follows: visible light transmittance T: t is more than or equal to 40% and less than or equal to 75%, and the visible light transmission colors at and bt: -2 ≤ at ≤ 1; -2 ≤ bt ≤ 1, visible light glass surface reflectance Rout: rout is more than or equal to 8% and less than or equal to 20%, and the colors aout and bout of the visible light glass surface are as follows: -1 ≦ aout ≦ 0; -2 ≤ bout ≤ 4, visible film surface reflection Rin: rin is less than or equal to 10%, and the visible film surface colors ain, bin: -5 ain 3, bin, and finally maintaining the colors of transmission and outdoor reflection in neutral grey, the values of heat transfer coefficient U and shading coefficient Sc: u is less than or equal to 1.7, and Sc is less than or equal to 0.45.

2. A neutral gray temperable double silver Low-E coated glass according to claim 1, wherein the glass substrate (15) is float glass.

3. The neutral gray temperable double-silver Low-E coated glass according to claim 1, wherein the AZO film layer is formed by magnetron sputtering using aluminum-doped zinc oxide as a target.

4. The Low-E coated glass capable of being tempered with neutral gray color as claimed in claim 1, wherein the Ti film layer is formed by magnetron sputtering using Ti as a target.

5. The neutral gray temperable double silver Low-E coated glass according to claim 1, wherein the ZrO-Si-O-R-O-R is selected from the group consisting of ZrO-O-R and ZrO-O-R ₂ The film layer is formed by adopting zirconium oxide as a target material and performing a magnetron sputtering method.