TWI501932B - Can strengthen the double silver low-emission coated glass - Google Patents

Description

Double-silver low-emission coated glass

The invention relates to the technical field of engineering glass, in particular to a double-silver low-emission coated glass.

Low-E Glass is a kind of energy-saving product that sputters a multilayer dielectric film and a functional film on the surface of the glass to achieve high reflection of infrared light and high transmission of visible light. Low-emission coated glass is a new-generation coating that can transmit solar energy, visible light, and infrared mirrors like float glass (especially the high reflectivity of the far-infrared), reflecting the secondary radiant heat of the object. glass. Used in any climate, it can control sunlight, save energy, regulate heat and improve the environment. At the same time, no matter how much indoor and outdoor temperature difference, as long as the low-radiation glass is installed, the summer heat-proof energy can enter the room, and the winter heat-proof energy leaks, which has two-way energy-saving effect, so that indoor air conditioning costs can be maintained for a long time in winter and summer.

At present, the low-emission coated glass used in the market is mostly a common double-silver low-emission coating product, which has short oxidation resistance, poor wear resistance, and has no different processing characteristics; on the other hand, it produces double-silver low-emission coated glass. The cost of equipment is expensive and cannot be tolerated by small glass processing enterprises, thus limiting the use and promotion of double-silver low-emission coated glass.

Therefore, in view of the defects of the prior art, the inventors actively researched and improved by many years of design experience in the field, and thus the invention can strengthen the double-silver low-emission coated glass.

In view of the deficiencies in the prior art, the present invention aims to provide a reinforced and low-energy reinforced double-silver low-emission coated glass, which improves adhesion, enhances mechanical performance protection, and improves processing resistance.

A first object of the present invention is to provide a reinforced double-silver low-emission coated glass comprising: a glass substrate, and a glass substrate thereon a first barrier layer, a base dielectric layer, a second barrier layer, a first functional Ag layer, a third barrier layer, an intermediate dielectric combination layer, a fourth barrier layer, a second functional Ag layer, a fifth barrier layer, and the like, which are sequentially deposited thereon Top layer dielectric layer.

A second object of the present invention is that the intermediate dielectric combination layer further includes a first intermediate dielectric layer, a second intermediate dielectric layer, and a third intermediate dielectric layer which are sequentially stacked.

A third object of the present invention is that the first barrier layer, the second barrier layer, and the fourth barrier layer are both NiCr.

A fourth object of the present invention is that the first intermediate dielectric layer and the third intermediate dielectric layer of the intermediate dielectric layer are both Si ₃ N ₄ and the second intermediate dielectric layer is ZnSnO ₃ .

According to a fifth object of the present invention, the base dielectric layer is Si ₃ N ₄ .

According to a sixth object of the present invention, the third barrier layer and the fifth barrier layer are both AZO.

According to a seventh object of the present invention, the first functional Ag layer and the second functional Ag layer are both silver-containing film layers.

In summary, the film system of the invention has the advantages of stable performance, high temperature resistance, improved color shift after steel front steel, low emissivity, high mechanical properties, good oxidation resistance and high adhesion.

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〔this invention〕

1‧‧‧glass substrate

2‧‧‧First barrier

3‧‧‧Basic dielectric layer

4‧‧‧Second barrier

5‧‧‧First functional Ag layer

6‧‧‧ third barrier

7‧‧‧Intermediate dielectric combination layer

71‧‧‧First intermediate dielectric layer

72‧‧‧Second intermediate dielectric layer

73‧‧‧ Third intermediate dielectric layer

8‧‧‧ fourth barrier

9‧‧‧Second functional Ag layer

10‧‧‧ fifth barrier

11‧‧‧Top dielectric layer

Figure 1 is a schematic view showing the structure of an embodiment of the reinforced double-silver low-emission coated glass of the present invention.

In order to make the technical means, the authoring features, the achievement of the object and the effect of the present invention easy to understand, the present invention will be further described below in conjunction with the specific embodiments.

Please refer to FIG. 1 , which is a schematic view showing the structure of a double-silver low-emission coated glass according to the present invention. The reinforced low-emission coated glass comprises a glass substrate 1 which is a float glass; and a first barrier layer 2, a base dielectric layer 3, a second barrier layer 4, and a layer sequentially deposited on the glass substrate 1. A functional Ag layer 5, a third barrier layer 6, an intermediate dielectric combination layer 7, a fourth barrier layer 8, a second functional Ag layer 9, a fifth barrier layer 10, and a top dielectric layer 11. The intermediate dielectric combination layer 7 further includes a first intermediate dielectric layer which is sequentially stacked The layer 71, the second intermediate dielectric layer 72, and the third intermediate dielectric layer 73.

The first barrier layer 2, the second barrier layer 4, and the fourth barrier layer 8 are NiCr. The first barrier layer 2 serves to block Na+ or the like in the glass substrate 1 from diffusing into the functional film layer during the coating process. The third barrier layer 6 and the fifth barrier layer 10 are AZO. The second barrier layer 4 and the third barrier layer 6 are respectively disposed on the lower side and the lower side of the first functional Ag layer 5, and are used to protect the first functional Ag layer 5 from oxidation during the coating process. The fourth barrier layer 8 and the fifth barrier layer 10 are respectively disposed on the lower side and the lower side of the second functional Ag layer 9, and are used to protect the second functional Ag layer 9 from oxidation during the coating process. The base dielectric layer 3, the first intermediate dielectric layer 71, and the third intermediate dielectric layer 73 are Si ₃ N ₄ . The first functional Ag layer 5 and the second functional Ag layer 9 are silver-containing film layers. The second intermediate dielectric layer 72 is a zinc tin oxide, ZnSnO ₃ .

In this embodiment, by providing a double-layer low-emission film layer, specifically a first-function Ag layer 5 and a second-function Ag layer 9, the radiance of infrared rays is greatly reduced. By arranging the third barrier layer 6 and the second barrier layer 4 on the upper and lower film layers of the first functional Ag layer 5, the oxidation of the first functional Ag layer 5 is effectively avoided; and the second functional Ag layer 9 is disposed above and below. The fifth barrier layer 10 and the fourth barrier layer 8 effectively avoid oxidation of the second functional Ag layer 9.

More importantly, in the present invention, the third barrier layer 6 and the fifth barrier layer 10 are AZO, which greatly increases the visible light transmittance compared to the conventional metal layer barrier layer. The first barrier layer 2, the second barrier layer 4, the third barrier layer 6, the fourth barrier layer 8, and the fifth barrier layer 10 enable the film system to be processed by pretreatment or high temperature treatment such as strengthening, hot bending, and the appearance thereof. The performance will not be affected, avoiding the falling off of the film layer, better wear resistance and oxidation resistance, and long-term storage.

In addition, the provision of the third intermediate dielectric layer 73 and the first intermediate dielectric layer 71 on the second intermediate dielectric layer 72 enhances the mechanical property protection of the film system and improves the processability of the film system. The second intermediate dielectric layer 72 is effectively toned in the film system and reduces color drift before and after film steel.

Optionally, the first functional Ag layer 5 and the second functional Ag layer 9 are doped Ag layer or Ag element; as a preferred solution, the first functional Ag layer 5 and the second functional Ag layer 9 of the embodiment are both adopted. The Ni-doped Ag layer can improve the adhesion of the film by the incorporation of Ni, so that it has the characteristics of low radiation, heat insulation and heat preservation performance, and its high adhesion through the film layer is avoided. Release of the film layer.

In this embodiment, a top dielectric layer 11 is disposed on the top layer of the film system to enhance the mechanical properties of the film, which facilitates product transportation and storage.

The invention has the advantages of stable film layer, high temperature resistance, improved color shift after steel front steel, low emissivity, high mechanical property, good oxidation resistance and high adhesion.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is only described in the foregoing description and the description of the present invention, without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

1‧‧‧glass substrate

2‧‧‧First barrier

3‧‧‧Basic dielectric layer

4‧‧‧Second barrier

5‧‧‧First functional Ag layer

6‧‧‧ third barrier

7‧‧‧Intermediate dielectric combination layer

71‧‧‧First intermediate dielectric layer

72‧‧‧Second intermediate dielectric layer

73‧‧‧ Third intermediate dielectric layer

8‧‧‧ fourth barrier

9‧‧‧Second functional Ag layer

10‧‧‧ fifth barrier

11‧‧‧Top dielectric layer

Claims (5)

A reinforced double-silver low-emission coated glass, characterized in that the reinforced double-silver low-emission coated glass comprises a glass substrate, and a first barrier layer, a base dielectric layer, and a layer sequentially deposited on the glass substrate a second barrier layer, a first functional Ag layer, a third barrier layer, an intermediate dielectric combination layer, a fourth barrier layer, a second functional Ag layer, a fifth barrier layer and a top dielectric layer, wherein The third barrier layer and the fifth barrier layer are both AZO. The double-silver low-emission coated glass according to claim 1, wherein the first barrier layer, the second barrier layer and the fourth barrier layer are both NiCr. The double-silver low-emission coated glass according to claim 2, wherein one of the first intermediate dielectric layer and the third intermediate dielectric layer is Si ₃ N ₄ , and one of the intermediate dielectric layers is second The intermediate dielectric layer is ZnSnO ₃ . The double-silver low-emission coated glass according to claim 2, wherein the base dielectric layer is Si ₃ N ₄ . The double-silver low-emission coated glass according to claim 2, wherein the first functional Ag layer and the second functional Ag layer are both silver-containing film layers.