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Low-emissivity film-coated glass high in infrared reflection and sandwich glass product thereof

A technology of low-radiation coating and infrared reflection layer, which is applied in the field of glass coating, can solve problems such as inappropriate diffusion of oxygen atoms, and achieve the effects of improved mechanical durability, qualified optical quality, and improved chemical durability

Active Publication Date: 2012-12-05
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although ZrO 2 It is a well-known material in the field of sputter coating and low-e thin film, but according to the general understanding of those skilled in the art, ZrO 2 It is an excellent oxygen ion conductor, not suitable as the upper dielectric layer of the low-e film layer to block the diffusion of oxygen atoms

Method used

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  • Low-emissivity film-coated glass high in infrared reflection and sandwich glass product thereof
  • Low-emissivity film-coated glass high in infrared reflection and sandwich glass product thereof
  • Low-emissivity film-coated glass high in infrared reflection and sandwich glass product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0045] Sodium calcium silicate float green glass with a thickness of 2.1 mm is used as the substrate. After cutting, edging, washing and drying, it enters the magnetron sputtering coating line for deposition. The background vacuum is higher than 9× 10 -4 Pa. According to the different film structures shown in Table 2, they were sequentially deposited on the glass. where ZrO 2 Using Zr metal target in Ar / O 2 Intermediate Frequency Reactive Sputtering Deposition in a Mixed Atmosphere with a Flow Ratio of 3 / 1, TiO 2 Using TiOx ceramic target in Ar and containing trace O 2 (O 2 Medium frequency sputtering deposition in an atmosphere with a flow ratio of 5%. The film materials and thicknesses of the other layers are shown in Table 2, and the sputtering process is also well known to those skilled in the art, so they will not be described in detail here.

[0046] Table 2: Comparative Examples 1-3 and Examples 1-6 Film Structure and Comparison of Appearance and Key Technical In...

Embodiment 7～10

[0056] Sodium calcium silicate float green glass with a thickness of 2.1 mm is used as the substrate. After cutting, edging, washing and drying, it enters the magnetron sputtering coating line for deposition. The background vacuum is higher than 9× 10 -4 Pa. According to the different film structures shown in Table 4, they were sequentially deposited on the glass. where ZrO 2 Using Zr metal target in Ar / O 2 Intermediate frequency reactive sputtering deposition under mixed atmosphere with flow ratio of 3 / 1. The film materials and thicknesses of the other layers are shown in Table 4, and the sputtering process is also well known to those skilled in the art, so they will not be detailed here.

[0057] Table 4: Comparison of the film structure of Examples 7-10 and the appearance and key technical indicators before and after high-temperature heat treatment

[0058]

[0059] After the vacuum coating is completed, according to the auto glass baking and bending process, carry ...

Embodiment 11～12

[0061] Sodium calcium silicate float white glass with a thickness of 2.1 mm is used as the substrate. After cutting, edging, washing and drying, it enters the magnetron sputtering coating line for deposition. The background vacuum is higher than 9× 10 -4 Pa. Low-emissivity films containing three infrared reflective layers were sequentially deposited on glass as shown in Table 5. where ZrO 2 Using Zr metal target in Ar / O 2 Medium frequency reactive sputtering deposition under the mixed atmosphere with flow ratio of 3 / 1, and ZrOxNy using Zr metal target in Ar / O 2 / N 2 Intermediate frequency reactive sputtering deposition in a mixed atmosphere with a flow ratio of 6 / 2 / 1. The film materials and thicknesses of the other layers are shown in Table 5, and the sputtering process is also well known to those skilled in the art, so they will not be detailed here.

[0062] Table 5: Comparative Example 4 and Examples 11-12 film structure and appearance and key technical indicators com...

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Abstract

The invention relates to the field of the film coating of glass, in particular to low-emissivity film-coated glass which is high in visible light transmittance, high in infrared reflection and available in heat treatment, and a sandwich glass product thereof. A film layer structure comprises medium layers and infrared reflecting layers, which are upwards superposed alternately from a glass substrate; a sequence of superposing the medium layers and the infrared reflecting layers alternately is that the medium layers are followed by the infrared reflecting layers; and the low-emissivity film-coated glass is characterized in that an upper medium layer positioned at an uppermost layer comprises a second medium film which is selected from at least one of ZrO2 and ZrOxNy, and a third medium film which is deposited on the second medium film and is selected from at least one of oxides of Ti, Al, Si, Ta, Hf, Nb, Cr, Ni, Fe, Mo, W and Y or is selected from at least one of nitrides and nitrogen oxides of the Ti, the Al, the Ta, the Nb, the Fe, the Hf, the Ni and the Cr. The low-emissivity film-coated glass and the sandwich glass product thereof have the advantages that the film-coated glass and the sandwich glass product thereof are high in the visible light transmittance and good in mechanical stability and high-temperature heat treatment stability.

Description

Technical field: [0001] The invention relates to the field of glass coating, in particular to low-emissivity coated glass with high visible light transmittance, high infrared reflection and heat treatment and its laminated glass products, especially suitable for double-silver or triple-silver coated laminated glass on vehicles. Background technique: [0002] Low-emissivity film (low-e film) glass has the advantages of transmitting visible light and reflecting infrared rays. Therefore, as a green product, there is a huge market demand in buildings and vehicles. The core material of the low-emissivity film is one or more layers of silver (9nm to 15nm). Since the silver layer is easily corroded and oxidized, a transparent medium that can transmit visible light must be deposited on the top and bottom of the silver layer. layer; these dielectric layers can protect the silver layer from being damaged during subsequent processing, especially high-temperature heat treatment (such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/36
Inventor 曹晖林柱袁军林朱谧何立山卢国水彭颖昊福原康太
Owner FUYAO GLASS IND GROUP CO LTD
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