CN201901646U - A kind of triple silver low-emissivity coated glass - Google Patents

Abstract

The utility model belongs to the technical field of glass, a three-silver low-emissivity coated glass is provided. The three-silver low-emissivity coated glass has a hierarchical structure comprising glass, a first barrier layer, a first dielectric layer, a first silver layer, a second barrier layer, a second dielectric layer, a second silver layer, a third barrier layer, a third dielectric layer, a third silver layer, a fourth barrier layer, a fourth dielectric layer and a top protective layer in sequence. The three-silver low-emissivity coated glass has the advantages of emissivity less than 0.03, good sun-shading coefficient, adjustable color and good heat insulation, and can be used as building glass, automobile glass and the like; through setting up the barrier layer, can subsequent silver layer of effectual protection, prevent the diffusion of sodion etc. in the glass body, reduce harmful ion to the erosion of silver layer, utilize the oxide of sputtered silicon fine with the glass body among the silica network body link up, better matching effect, ageing resistance, the anti-corrosion performance that can effectual improvement whole membrane system, the performance is more stable, the life-span is more permanent.

Description

A kind of triple silver low-emissivity coated glass

technical field

The utility model relates to coated glass, in particular to a triple-silver low-radiation coated glass.

Background technique

The national standard GBT18915[2]-2002 "Architectural Glass Part 2 Low-emissivity Coated Glass", stipulates that the emissivity of off-line low-emission coated glass is lower than 0.15. In the prior art single-silver low-emissivity coated glass and double-silver low-emissivity coated glass, the emissivity can be 0.05-0.08. In order to improve the heat insulation, it is generally by increasing the thickness of the silver layer, which means that a lower emissivity is obtained under the premise of sacrificing a certain transmittance. And the increase of the thickness of the silver layer will also cause the increase of the cost.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a triple-silver coated glass with low emissivity.

The technical scheme provided by the utility model is:

A kind of triple-silver low-emissivity coated glass, the hierarchical structure is glass, the first barrier layer, the first dielectric layer, the first silver layer, the second barrier layer, the second dielectric layer, the second silver layer, the third barrier layer, The third dielectric layer, the third silver layer, the fourth barrier layer, the fourth dielectric layer, and the top protection layer.

The thickness of the first barrier layer is 10-30nm.

The thickness of the second barrier layer, the third barrier layer and the fourth barrier layer is 0.5-8 nm.

The first silver layer, the second silver layer, and the third silver layer are sputtered from a planar target, and the film thickness is 6-20nm;

The thickness of the first dielectric layer, the second dielectric layer, the third dielectric layer and the fourth dielectric layer is 10-60 nm.

The thickness of the top protective layer is 10-30nm.

In the utility model, the first barrier layer is made of silicon oxide, nitride or nitrogen oxide; the second barrier layer, the third barrier layer, and the fourth barrier layer are made of nickel-chromium oxide, nitride or nitrogen oxide material; the first silver layer, the second silver layer, and the third silver layer are sputtered by planar targets; the first dielectric layer, the second dielectric layer, the third dielectric layer, and the fourth dielectric layer are made of titanium, zinc, Aluminum, silicon oxide, nitride or oxynitride, can be made of one or more of TiO ₂ , SiO ₂ , ZnO, Al ₂ O ₃ ; the top protective layer is silicon oxynitride Si ₃ N _x O _y made, where x>2, 0<y<2.

The beneficial effect of the utility model: it has very low emissivity <0.03, good shading coefficient, adjustable color, good heat insulation, and can be applied to architectural glass and automobile glass; by setting a barrier layer, it can effectively protect The subsequent silver layer prevents the diffusion of sodium ions in the glass body, reduces the erosion of harmful ions on the silver layer, and uses the sputtered silicon oxide to connect well with the silicon-oxygen network in the glass body, which is better The matching effect can effectively improve the anti-aging performance and anti-corrosion performance of the entire film system, with more stable performance and longer service life.

Description of drawings

Fig. 1 is a schematic structural view of a triple-silver low-emissivity coated glass provided by an embodiment of the present invention.

Detailed ways

Referring to Figure 1, a triple-silver low-emissivity coated glass, its hierarchical structure is: glass 1, first barrier layer 2, first dielectric layer 3, first silver layer 4, second barrier layer 5, second dielectric layer 6. The second silver layer 7 , the third barrier layer 8 , the third dielectric layer 9 , the third silver layer 10 , the fourth barrier layer 11 , the fourth dielectric layer 12 , and the top protection layer 13 .

The first barrier layer 2: made of _SiO2 , the film thickness is 15nm;

The first dielectric layer 3: made of zinc tin oxide, the film thickness is 18nm;

The first silver layer 4: sputtered by an Ag planar target, with a film thickness of 10nm;

The second barrier layer 5: made of nickel-chromium oxide, the film thickness is 2nm;

The second dielectric layer 6: made of zinc tin oxide, the film thickness is 56nm;

The second silver layer 7: sputtered by an Ag planar target, the film thickness is 12nm;

The third barrier layer 8: made of nickel-chromium oxide, the film thickness is 2nm;

The third dielectric layer 9: made of zinc tin oxide, the film thickness is 60nm;

The third silver layer 10: formed by sputtering an Ag planar target, with a film thickness of 18nm;

The fourth barrier layer 11: made of nickel-chromium oxide, the film thickness is 2nm;

The fourth dielectric layer 12: made of zinc tin oxide, the film thickness is 20nm;

Top protection layer 13: made of Si ₃ N ₄ with a film thickness of 16nm;

The first barrier layer (10-30nm): SiO ₂ , the thickness of the film layer is 12-18nm; the function is a very good protective effect, preventing the migration of sodium ions in the glass body from affecting the bonding performance of the film layer, and the insulation effect, but The sputtered Si oxide is well connected with the silicon-oxygen network body in the glass body, and the better matching effect is beneficial to improve the optical performance and chemical stability of the glass.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, on the premise of not departing from the concept of the utility model, making specific changes or changes all belong to the protection scope of the utility model.

Claims (6)

1. a kind of three silver low radiation coated glass, it is characterized in that: hierarchical structure is glass successively, the first barrier layer, the first dielectric layer, the first silver layer, the second barrier layer, the second dielectric layer, the second silver layer , the third barrier layer, the third dielectric layer, the third silver layer, the fourth barrier layer, the fourth dielectric layer, and the top protective layer. 2. The triple-silver low-emissivity coated glass according to claim 1, characterized in that: the thickness of the first barrier layer is 10-30nm. 3. The triple-silver low-emissivity coated glass according to claim 1, characterized in that: the thickness of the second barrier layer, the third barrier layer and the fourth barrier layer is 0.5-8nm. 4. The triple-silver low-emissivity coated glass according to claim 1, characterized in that: the first silver layer, the second silver layer, and the third silver layer are sputtered from a planar target, and the film thickness is 6- 20nm; 5. The triple-silver low-emissivity coated glass according to claim 1, characterized in that: the thickness of the first dielectric layer, the second dielectric layer, the third dielectric layer and the fourth dielectric layer is 10-60 nm. 6. The triple-silver low-emissivity coated glass according to claim 1, characterized in that: the thickness of the top protective layer is 10-30nm.