CN206157059U - Two silver -colored low -emissivity coated glass of high printing opacity of muted color - Google Patents

Abstract

The utility model relates to a double-silver low-radiation coated glass, which comprises a glass substrate and a low-radiation film layer. The low-radiation film layer starts from the surface of the glass substrate in sequence: a first dielectric combination layer, a first infrared reflection layer, The first metal protection layer, the second dielectric combination layer, the second infrared reflection layer, the second barrier layer, and the third dielectric layer; wherein, the first dielectric combination layer is composed of a silicon nitride layer and a bismuth oxide layer arranged in sequence; the second The first metal protective layer is composed of copper layer and nickel-chromium alloy layer arranged in sequence; the second dielectric combination layer is composed of silicon nitride layer, zinc tin oxide layer and zinc aluminum oxide layer arranged in sequence; the second barrier layer is ceramic zinc oxide aluminum layer; the third dielectric layer is a silicon nitride layer. The glass surface, film surface and transmission color of the glass product involved in the utility model all present a neutral color appearance, and the reflectivity of visible light is low, which will not cause glare or so-called "light pollution". The double-silver glass has high visible light transmittance, high light-to-heat ratio, and remarkable thermal insulation effect.

Description

A kind of neutral color high transmittance double silver low radiation coated glass

technical field

The utility model relates to the technical field of energy-saving glass, in particular to a neutral-color, high-transmittance, double-silver, low-radiation coated glass, which belongs to the energy-saving glass product coated with a film layer on the surface of the glass, and is also called Low-E energy-saving glass.

Background technique

With the increasingly serious energy crisis, energy conservation and consumption reduction has become a part of the work of various enterprises and units, and has penetrated into everyone's life. The "13th Five-Year Plan" pointed out that saving building energy consumption and developing green buildings are important ways to build a resource-saving and environment-friendly society.

Low-emissivity energy-saving glass has been widely used in the production of building curtain walls due to its excellent energy-saving properties such as high infrared reflectivity and high visible light transmittance. At the same time, the intensified market competition has forced glass processing enterprises to conduct research and development on low-radiation energy-saving glass products with better energy-saving properties and appearance colors that better meet user needs.

At present, the double-silver products on the market have excellent energy-saving performance, but they are all based on the thickened silver layer, which will inevitably make the glass not have good permeability; while ensuring high visible light transmittance, using The glass surface, film surface, and transparent color all present a neutral color appearance, which has not been reported yet.

For example, the double-silver products involved in Chinese patents CN201020503116.4, CN201210430335.8 and CN201310315178.0 have an appearance close to natural color, but the color of the glass surface is bluish. Patents CN 201410607063.3 and CN201510785058.6 have improved the characteristics of the traditional double silver transmission color being greenish or yellowish, but the transmission color is only neutral.

As a result, the existing single-silver low-emissivity coated glass with high visible light transmittance and neutral color appearance is not as energy-saving as double-silver low-emissivity products. While the existing double-silver low-emissivity coated glass has better energy-saving performance than single-silver products and high visible light transmittance, it is difficult to balance the glass surface, film surface and transmission color of double-silver products. In the case of neutral tones, the color of the glass surface often has a blue tone, and the color of the film surface is not ideal.

Secondly, double-silver products in the field of high visible light transmittance and neutral color have a low light-to-heat ratio, and the heat transfer coefficient U value of hollow products is high, which cannot fully reflect the energy-saving characteristics of double-silver low-emissivity energy-saving glass.

Utility model content

The purpose of the invention of the present utility model is to provide a neutral color high-transmission Light double silver low-E coated glass. The neutral-color, high-transmittance, double-silver and low-radiation coated glass of the utility model is designed with a reasonable film structure and film thickness, so that the glass surface, film surface, and transmission color are all neutral colors, and the outdoor environment can be more efficient. It is truly reflected indoors, and the outdoor visible light reflectance is low, which will not cause glare or light pollution.

In order to achieve the above object, the technical solution adopted by the utility model is:

A double-silver low-emissivity coated glass, comprising a glass substrate and a low-emissivity film layer, the low-emission film layer starting from the surface of the glass substrate is: the first dielectric combination layer, the first infrared reflection layer, the first metal protection layer, the second dielectric combination layer, the second infrared reflection layer, the second blocking layer, and the third dielectric layer.

Wherein, the first dielectric combination layer is composed of a silicon nitride layer and a bismuth oxide layer arranged in sequence;

The first metal protection layer is composed of a copper layer and a nickel-chromium alloy layer arranged in sequence;

The second dielectric combination layer is composed of a silicon nitride layer, a zinc tin oxide layer, and a zinc aluminum oxide layer arranged in sequence;

The second barrier layer is a ceramic zinc-aluminum oxide layer (abbreviated as AZO);

The third dielectric layer is a silicon nitride layer.

The low-radiation and energy-saving glass products of the utility model design a reasonable composite film layer structure, and the sequence matching relationship between the composite film layers bonded on the surface of the glass substrate is suitable. Through the internal synergy of the composite film layers, the glass surface , film surface, and transmitted color all present a neutral color appearance, and the visible light reflectance is low, which will not cause glare or the so-called "light pollution". At the same time, the double-silver glass has high visible light transmittance, low solar thermal radiation transmittance, high light-to-heat ratio, and good energy-saving performance; the heat transfer coefficient U value is low, and the thermal insulation effect is remarkable. The mid-infrared reflective layer of the double-silver low-radiation glass of the utility model is a silver layer. Among them, the "serial arrangement" of the film layers such as the first dielectric combination layer, the first metal protective layer, and the second dielectric combination layer is to arrange them sequentially from the inside to the outside according to their positions in the low-emissivity coated glass, and adjacent to them The two layers of film are combined. For example, in the first dielectric combination layer, the silicon nitride layer is adjacent to the glass substrate, the bismuth oxide layer is adjacent to the first infrared reflection layer, and the other combination layers or functional layers including multiple layers are arranged in a similar structure.

As a preferred solution of the present invention, the glass substrate is float white glass, such as a high-quality float white glass substrate or an ordinary float white glass substrate. In particular, high-quality float white glass substrates can be selected.

As a preferred solution of the present invention, the double-silver low-emissivity coated glass is plated by vacuum magnetron sputtering technology, especially high vacuum magnetron sputtering technology, and is plated by magnetron sputtering technology The film layer has the characteristics of high control precision and good plating effect.

As a preferred solution of the present invention, in the first dielectric combination layer, the thickness of the silicon nitride layer is 11-14 nm, and the thickness of the bismuth oxide layer is 18-25 nm. Silicon nitride is used as the bottom layer to prevent the sodium element in the glass body from diffusing into the film layer and destroying the structure of the functional layer; the bismuth oxide layer is used as the adhesion layer of the first silver layer.

As a preferred solution of the present invention, the first infrared reflection layer has a thickness of 11-13 nm, and is specifically a silver layer.

As a preferred solution of the present invention, in the first metal protective layer, the thickness of the copper layer is 2.5-4.0 nm, and the thickness of the nickel-chromium alloy layer is 2-4 nm, so as to protect the first silver layer from oxidation.

As a preferred solution of the present invention, in the second dielectric combination layer, the thickness of the silicon nitride layer is 30-43nm, the thickness of the zinc-tin oxide layer is 30-40nm, and the thickness of the zinc-aluminum oxide layer is 5-8nm. Among them, silicon nitride acts as a barrier layer to prevent the oxidation of the metal layer in an oxygen atmosphere; zinc tin oxide and zinc aluminum oxide are used as transparent conductive layers, which can further reduce the resistance of the film layer and increase the visible light transmittance.

As a preferred solution of the present invention, the second infrared reflection layer has a thickness of 13-15 nm. Specifically, a silver layer.

As a preferred solution of the present invention, the second barrier layer is a ceramic zinc oxide aluminum layer with a thickness of 5-8nm to protect the second silver layer from oxidation.

As a preferred solution of the present invention, in the third dielectric layer, the thickness of the silicon nitride layer is 28-34nm, which is used as the outermost protective layer of the film layer to improve the mechanical properties of the film layer. The third dielectric layer is also called the third dielectric protection layer.

As a preferred solution of the present utility model, the double-silver low-emissivity coated glass is a double-silver low-emissivity coated glass with a neutral color and high light transmission effect, and the film layer structure on the glass substrate is as follows from inside to outside: silicon nitride /Bismuth Oxide/Silver/Copper/Nichrome/Silicon Nitride/Zinc Tin Oxide/Zinc Aluminum Oxide/Silver/Ceramic Zinc Aluminum Oxide/Silicon Nitride. The side close to the glass substrate is the inside, and the side close to the air is the outside.

The existing neutral-color double-silver low-emissivity coated glass products have high visible light transmittance and good energy-saving performance, but their neutral color is only reflected in the transparent color or glass surface. In contrast, the neutral-color high-transmittance double-silver low-emission coated glass provided by the utility model not only has a high visible light transmittance, but also has a neutral color on the glass surface, film surface, and transparent color, which makes the outdoor The environment can be presented to indoor users more realistically, and the outdoor reflectivity is low, which will not cause glare or light pollution; in addition, the hollow product involved in the utility model has a high light-to-heat ratio, a low heat transfer coefficient U value, and excellent energy-saving performance.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. The neutral-color double-silver low-emissivity coated glass of the utility model, and the glass surface, the film surface, and the transmission color all present neutral colors, and the appearance is more attractive, which makes the outdoor environment more realistic for indoor users , Secondly, the outdoor reflectivity is low, which will not cause glare or light pollution.

2. The neutral-color double-silver low-emissivity coated glass of the present invention has excellent thermal performance, the film layer has good chemical stability, strong oxidation resistance and corrosion resistance; and its high mechanical performance can effectively prevent scratches and other mechanical damage.

3. The neutral-color double-silver low-emissivity coated glass of the present invention can realize the excellent characteristics of high visible light transmittance, low solar thermal radiation transmittance, and high light-to-heat ratio after synthesizing hollow glass products. Low-emissivity coated glass has a low heat transfer coefficient U value, which can fully reduce the heating and cooling energy consumption of buildings, and has excellent energy-saving effect.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Marks in the figure: 0-glass substrate, 1-first dielectric composite layer, 2-first infrared reflective layer, 3-first metal protection layer, 4-second dielectric composite layer, 5-second infrared reflective layer, 6-the second barrier layer, 7-the third dielectric layer, 9-all coating layers.

detailed description

The utility model can be realized through the following technical solutions: starting from the surface of ordinary float glass, using high-vacuum magnetron sputtering technology to sequentially plate the first dielectric combination layer including silicon nitride and bismuth oxide, and the first infrared reflection layer is Silver, the first metal protection layer is copper, nickel-chromium alloy, the second dielectric combination layer includes silicon nitride, zinc tin oxide, zinc-aluminum oxide, the second infrared reflection layer is silver, and the second barrier layer is ceramic zinc-aluminum oxide. The third dielectric layer is silicon nitride.

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example

Using vacuum magnetron sputtering technology to coat high-quality float substrates with low-emissivity film layers, the film layer structure starts from the surface of the glass substrate in order of silicon nitride layer, bismuth oxide layer, silver layer, copper layer, nickel chrome Alloy layer, silicon nitride layer, zinc tin oxide layer, zinc aluminum oxide layer, silver layer, ceramic zinc oxide aluminum layer, silicon nitride layer. The resulting double-silver low-emissivity coated glass has a cut-away view of its structure as shown in Figure 1. 6mm float white glass is used as the glass substrate 0, and on the glass substrate 0, there are arranged in sequence from inside to outside: the first Dielectric composition layer 1, first infrared reflection layer 2, first metal protection layer 3, second dielectric composition layer 4, second infrared reflection layer 5, second barrier layer 6, third dielectric layer 7. The first dielectric combination layer 1 includes a silicon nitride layer and a bismuth oxide layer arranged in sequence; the first metal protection layer 3 is a copper layer and a nickel-chromium alloy layer arranged in sequence; the second dielectric combination layer 4 is a silicon nitride layer arranged in sequence layer, zinc tin oxide layer and zinc aluminum oxide layer; the second barrier layer 6 is a ceramic zinc oxide aluminum layer, and the third dielectric layer 7 is a silicon nitride layer. In conjunction with FIG. 1 , the lower side in FIG. 1 close to the glass substrate 0 is the inner side, and the upper side is the outer side. The relevant expressions for the inner and outer sides of the film layer in the present invention should be understood in this way. The composite film layer was plated by high vacuum magnetron sputtering technology, and the thickness of each film layer is shown in Table 1 below.

Table 1 Thickness of neutral color double-silver low-emissivity coated glass

Example 101 Example 102 Example 103 SiNx 12.9 13.4 11.3 BiOx 20.6 18.7 25 Ag 12 11.5 13 Cu 3.6 2.5 3.8 NiCr 3.1 4 2.3 SiNx 37.6 33 41 ZnSnOx 35 39 36.4 ZnAlOx 5 8 6.4 Ag 14.3 13.6 15 ZnAlOx 5 5.6 6 SiNx 31.6 32.7 29.3

According to the thickness control range of the above-mentioned composite film layer, the vacuum magnetron sputtering technology is used for plating and processing to obtain a neutral color high light transmission double silver low radiation coated glass. After testing and analysis, the corresponding monolithic coated glass has excellent thermal performance. The most important thing is that the glass surface, film surface, and transmission color are all neutral in color, making the appearance more attractive, which makes the outdoor environment more realistic. For indoor users, the statistical results of specific optical performance parameters are shown in Table 2. T (%), visible light transmittance; R (%), visible light reflectance.

Table 2 Parameters of monolithic coated glass

T (%) R (%) L* a* b* glass surface - 13~16 44~46 -3.0~-1.5 -4~-2 Film surface - 4.5-7 28~30 0~3 -3.5~-1 Through color 60-64 - - -3~-1.5 -0.5~0.5

The emissivity of the low-radiation coated glass of the utility model is ≤0.04, and has good energy saving and environmental protection characteristics.

The low-radiation coated glass of the utility model is made of insulating glass (6mm+12mmA+6mm), which has low penetration of solar heat radiation, low heat transfer coefficient U value, high light-to-heat ratio (see Table 3), remarkable thermal insulation effect, and energy saving Excellent performance.

Table 3 The thermal parameters of the hollow products involved in the utility model

Visible light transmittance Tvis (%) Solar thermal radiation transmittance Tsol (%) Heat transfer coefficient U Light to heat ratio LSG 54~56 ≤25 ≤1.65 ≥2.2

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A double-silver low-emissivity coated glass comprises a glass substrate and a low-emissivity coating, and the low-emission coating starts from the surface of the glass substrate as follows: the first dielectric combination layer, the first infrared reflection layer, the first Metal protection layer, second dielectric combination layer, second infrared reflection layer, second barrier layer, third dielectric layer; Wherein, the first dielectric combination layer is composed of a silicon nitride layer and a bismuth oxide layer arranged in sequence; The first metal protection layer is composed of a copper layer and a nickel-chromium alloy layer arranged in sequence; The second dielectric combination layer is composed of a silicon nitride layer, a zinc tin oxide layer, and a zinc aluminum oxide layer arranged in sequence; The second barrier layer is a ceramic zinc oxide aluminum layer; The third dielectric layer is a silicon nitride layer. 2. The double-silver low-emissivity coated glass according to claim 1, characterized in that the glass substrate is float glass. 3. The double-silver low-emissivity coated glass according to claim 1, characterized in that the double-silver low-emissivity coated glass is plated by vacuum magnetron sputtering technology. 4. The double-silver low-emissivity coated glass according to claim 1, characterized in that, in the first dielectric combination layer, the thickness of the silicon nitride layer is 11-14 nm, and the thickness of the bismuth oxide layer is 18-25 nm. 5. double-silver low-emissivity coated glass according to claim 1, is characterized in that, the first infrared reflective layer, thickness is 11～13nm, is specifically silver layer; The second infrared reflection layer has a thickness of 13-15 nm, and is specifically a silver layer. 6. The double-silver low-emissivity coated glass according to claim 1, characterized in that, in the first metal protective layer, the thickness of the copper layer is 2.5-4.0 nm, and the thickness of the nickel-chromium alloy layer is 2-4 nm. 7. The double-silver low-emissivity coated glass according to claim 1, characterized in that, in the second dielectric composite layer, the thickness of the silicon nitride layer is 30-43nm, the thickness of the zinc-tin oxide layer is 30-40nm, and the oxide The thickness of the zinc-aluminum layer is 5-8nm. 8. The double-silver low-emissivity coated glass according to claim 1, wherein the second barrier layer is a ceramic zinc oxide aluminum layer with a thickness of 5-8nm. 9. The double-silver low-emissivity coated glass according to claim 1, characterized in that, in the third dielectric layer, the thickness of the silicon nitride layer is 28-34nm. 10. The double-silver low-emissivity coated glass according to claim 1, characterized in that, the film structure on the glass substrate is sequentially from inside to outside: silicon nitride/bismuth oxide/silver/copper/nickel-chromium alloy/ Silicon nitride/zinc tin oxide/zinc aluminum oxide/silver/ceramic zinc oxide aluminum/silicon nitride.