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CN-224197431-U - Glass film with low hemispherical emissivity and glass

CN224197431UCN 224197431 UCN224197431 UCN 224197431UCN-224197431-U

Abstract

The utility model discloses a glass film with low hemispherical emissivity and glass, wherein the film comprises a release film layer (00), a pressure-sensitive adhesive layer (10), a resin film layer (20) and a magnetic control metal layer, the magnetic control metal layer is arranged on the upper surface of the resin film layer (20), and the magnetic control metal layer is of a multilayer structure and comprises 1-4 metal reflecting layers (30) and an outermost low-radiation oxidation-resistant layer (40). The low-radiation oxidation-resistant layer (40) can protect the surface of the glass film from scratch in the transportation and construction process, has lower emissivity, and when the indoor temperature is higher, radiation is mainly transmitted from the indoor, and the low-radiation oxidation-resistant layer (40) can reflect heat back into the indoor.

Inventors

  • CHEN JIANZHONG
  • HE YONG
  • CAI HONGQIN

Assignees

  • 上海玻赫科技有限公司
  • 贵州省建筑材料科学研究设计院有限责任公司

Dates

Publication Date
20260505
Application Date
20250509

Claims (9)

  1. 1. The glass film with low hemispherical emissivity comprises a release film layer (00), a pressure-sensitive adhesive layer (10), a resin film layer (20) and a magnetic control metal layer, and is characterized in that the magnetic control metal layer is positioned on the upper surface of the resin film layer (20), is of a multi-layer structure and comprises 1-4 metal reflection layers (30) and an outermost low-radiation oxidation-resistant layer (40).
  2. 2. The glass film with low hemispherical emissivity according to claim 1, wherein the material of the low radiation oxidation resistant layer (40) is AZO or FTZO, and the thickness is 20-40nm.
  3. 3. The glass film with low hemispherical emissivity according to claim 1, wherein the thickness of the metal reflecting layer (30) is 5-15nm.
  4. 4. The glass film with low hemispherical emissivity according to claim 1, wherein a transition layer (34) is arranged on each metal reflecting layer (30), and the thickness of the transition layer (34) is 1-5nm.
  5. 5. The glass film with low hemispherical emissivity according to claim 4, wherein the magnetically controlled metal layer comprises an anti-reflection layer (23), a metal reflecting layer (30), a transition layer (34) and a low-emissivity anti-oxidation layer (40) in sequence from bottom to top, wherein the metal reflecting layer (30) and the transition layer (34) are alternately repeated if the metal reflecting layer (30) is a multilayer.
  6. 6. The glass film with low hemispherical emissivity according to claim 5, wherein the material of the anti-reflection layer (23) is silicon dioxide.
  7. 7. The glass with low hemispherical emissivity is characterized in that the magnetic control metal layer is sequentially provided with an anti-reflection layer (23), a metal reflection layer (30), a transition layer (34) and a low-radiation oxidation-resistant layer (40) from bottom to top.
  8. 8. The low hemispherical emissivity glass of claim 7, having a plurality of metal reflective layers (30), the metal reflective layers (30) and the transition layers (34) being alternately arranged.
  9. 9. The low hemispherical emissivity glass according to claim 7 or 8, wherein the low hemispherical emissivity glass is used as an outermost glass of the hollow glass and the magnetically controlled metal layer is located inside the hollow glass cavity.

Description

Glass film with low hemispherical emissivity and glass Technical Field The utility model relates to the field of glass and glass film. Background CN218755557U discloses a hollow glass film with LOW hemispherical emissivity and LOW-E effect, the film comprises a layer of magnetron sputtering layer, the metal of the magnetron sputtering layer has LOW emissivity, the glass film is stuck on the glass to reduce the overall emissivity, thereby reducing the heat transfer coefficient of the hollow glass, and the film is stuck on the inner side of the hollow glass to improve the heat insulating capability. However, the metal of the magnetron sputtering layer is easy to oxidize and needs to be protected, a protective film is adhered to the surface of the magnetron sputtering layer, the protective film needs to be torn off in the processing process of the hollow glass, the refractive index of the protective film is high, the reflection of infrared rays is on the surface of the magnetron sputtering layer, and if the infrared rays enter the magnetron sputtering layer through the protective film with high refractive index, the reflection rate is reduced. Although the mode of adding the protective film has the protective effect, the problem of complex process exists, the magnetron sputtering layer can be damaged in the film tearing process, and metal oxidation can occur if the sealing performance of the hollow glass is poor. Disclosure of Invention Aiming at the problem that the protection and the reflectivity of the magnetron sputtering layer in the hollow glass cannot be considered, the utility model provides a structure for covering the magnetron sputtering layer by using a protective layer with low refractive index. The technical scheme of the utility model is as follows: The glass film with low hemispherical emissivity comprises a release film layer 00, a pressure sensitive adhesive layer 10, a resin film layer 20 and a magnetic control metal layer, and is characterized in that the magnetic control metal layer is positioned on the upper surface of the resin film layer 20, is of a multi-layer structure and comprises 1-4 metal reflection layers 30 and an outermost low-radiation oxidation resistant layer 40. The material of the low-emissivity oxidation resistant layer 40 is AZO or FTZO, and the thickness is 20-40nm. The thickness of the metal reflective layer 30 is 5-15nm. Each metal reflective layer 30 has a transition layer 34 thereon, the transition layer 34 having a thickness of 1-5nm. The magnetic control metal layer comprises an anti-reflection layer 23, a metal reflecting layer 30, a transition layer 34 and a low-radiation oxidation resistant layer 40 from bottom to top, wherein if the metal reflecting layer 30 is a plurality of layers, the metal reflecting layer 30 and the transition layer 34 are alternately repeated. The material of the anti-reflection layer 23 is silicon dioxide. The glass with low hemispherical emissivity is provided with a pressure-sensitive adhesive layer 10, a resin film layer 20 and a magnetic control metal layer in sequence from bottom to top, wherein the magnetic control metal layer comprises an anti-reflection layer 23, a metal reflecting layer 30, a transition layer 34 and a low-radiation oxidation resistant layer 40. There are a plurality of metal reflective layers 30, with the metal reflective layers 30 and the transition layers 34 being alternately arranged. A hollow glass with low hemispherical emissivity, wherein the outermost glass layer of the hollow glass is the low hemispherical emissivity glass, and the magnetic control metal layer is positioned at the inner side of the hollow glass cavity. The utility model has the beneficial effects that: 1. The glass film can be stuck on glass when the glass breaks, so that the glass film cannot fall off. Meanwhile, the magnetic control metal layer on the surface of the glass film has low emissivity, the glass film can reduce the overall emissivity when being attached to the glass, so that the heat transfer coefficient of the hollow glass is reduced, and the metal layer has the main function of reflecting near infrared rays in the sun, so that the heat of sunlight entering a room is reduced. 2. The outermost surface of the magnetic control metal layer is AZO (aluminum doped zinc oxide) or FTZO (fluorine doped zinc oxide), and the two materials are used as surface layer plating to protect the inner metal reflecting layer from being oxidized by air, and meanwhile, the magnetic control metal layer has lower emissivity, reduces the transmission from high temperature to low temperature caused by the environmental temperature difference, can reduce the heat radiation from indoor to outdoor in winter, and can reduce the heat radiation from outdoor to indoor in summer. Drawings Fig. 1 is a schematic view of the layer structure of a glass film (single metal reflective layer). Fig. 2 is a schematic view of the layer structure of a glass film (three