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Coated product

A product and film technology, applied in the field of high-temperature heat-treated coated glass, can solve the problems of limited deposition, poor wettability, performance degradation, etc., and achieve the effects of reducing corrosion, reducing costs, and uniform film growth.

Inactive Publication Date: 2012-07-04
FUYAO GLASS IND GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent discloses that the silver alloy containing copper as the infrared reflection layer has good infrared reflection function, but the copper contained in the silver alloy will cause the risk of erythema defects in the film layer during subsequent processing
[0004] Nowadays, in the production of off-line low-emissivity coated glass, most of them use pure silver as the functional film layer to reflect infrared rays. Because pure metal silver is easy to react with sulfide gas in the air, the performance of silver will be degraded, and silver will be easily oxidized and lost during high temperature heat treatment. Low-emissivity function, therefore, the current production of low-emissivity coated glass uses multiple dielectric layers to protect the silver layer, and many low-emissivity coatings cannot withstand high-temperature heat treatment
Due to the different characteristics of metal and dielectric materials, the wettability of silver on the dielectric film is not very good. After a lot of research, it is found that using zinc oxide as the seed layer of silver deposition can make the deposition of silver film more uniform. On the other hand, , which also limits the deposition of silver on other dielectric layers, thus limiting the design of film structures

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] On the glass substrate 2.0C, sequentially plate ZnSnO with a thickness of 40nm 2 Film layer; Ag with a thickness of 12nm 1-a Sb a Film layer, wherein a=9wt%; a Ti film layer with a thickness of 3nm; a ZnSnO layer with a thickness of 25nm 2 Film layer; Si with a thickness of 15nm 3 N 4 The film layer is used as a protective layer to obtain heat-treatable low-emissivity coated glass.

[0051] Optical performance test

[0052] Before heat treatment, the emissivity of a single piece of low-emissivity coated glass is 0.05, and the visible light transmittance is 80.1%. The resistance is 10.2 Ω / square; the low-emissivity coated laminated glass obtained after washing and laminating processes has been tested and found to have a visible light transmittance of 75.9% and a direct solar transmittance of 47.8%.

[0053] physical properties

[0054] According to GB9656-2003, impact test, radiation resistance test, damp heat cycle test, etc. can meet the requirements. After tes...

Embodiment 2

[0056] On the glass substrate 2.0C, sequentially plate ZnSnO with a thickness of 35nm 1.8 Film layer; Ag with a thickness of 10nm 1-a Sb a Film layer, wherein a=1wt%; Ti film layer with a thickness of 2nm; ZnSnO with a thickness of 75nm 1.8 Film layer; Ag with a thickness of 12nm 1-a Sb a Film layer, wherein a=1wt%; Ti film layer with a thickness of 3nm; ZnSnO with a thickness of 25nm 1.8 Film layer; TiO with a thickness of 10 nm 2 The film layer is used as a protective layer to obtain heat-treatable low-emissivity coated glass.

[0057] Optical performance test

[0058] Before heat treatment, the emissivity of a single piece of low-emissivity coated glass is 0.04, and the visible light transmittance is 78.5%. The resistance is 4Ω / square; the low-emissivity coated laminated glass obtained after washing and assembling processes has been tested and found to have a visible light transmittance of 75.6% and a direct solar transmittance of 41.5%.

[0059] physical properties...

Embodiment 3

[0062] On the glass substrate 2.0C, sequentially plate ZnSnO with a thickness of 35nm 2.3 Film layer; Ag with a thickness of 12nm 1-a Sb a Film layer, wherein a=0.01wt%; Ti film layer with a thickness of 2nm; ZnSnO with a thickness of 70nm 2.3 Film layer; Ag with a thickness of 10nm 1-a Sb a Film layer, wherein a=0.01wt%; Ti film layer with a thickness of 3nm; ZnSnO with a thickness of 65nm 2.3 Film layer; Ag with a thickness of 9nm 1-a Sb a Film layer, wherein a=0.01wt%; a Ti film layer with a thickness of 3nm; a ZnSnO layer with a thickness of 20nm 2.3 Film layer; ZrO with a thickness of 15 nm 2 The film layer is used as a protective layer to obtain heat-treatable low-emissivity coated glass.

[0063] Optical performance test

[0064] Before heat treatment, the emissivity of a single piece of low-emissivity coated glass is 0.025, and the visible light transmittance is 76.6%. The resistance is 2.3Ω / square; the low-emissivity coated laminated glass obtained after was...

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Abstract

The invention discloses a coated product and particularly relates to coated glass which can be processed at a high temperature. The material of a reflective infrared film layer of the coated product is changed from the traditional pure silver material to an alloy material Ag1-aSba including silver (Ag) and stibium (Sb) metals, wherein a is greater than 0 and is less than or equal to 9wt%, and Sb is used as a wetting agent in the deposition process of a silver layer and enables the silver layer to grow in a two-dimensional shape; meanwhile, Sb can prevent Ag to interact with the adjacent oxide layer, improve the stability of a coating system in a high-temperature heat treatment and further improve the chemical stability as well as mechanical property of the silver layer. The coated product disclosed by the invention has high visible light transmittance, favorable mechanical resistance and chemical stability and is mainly applied to automobile windshields.

Description

【Technical field】 [0001] The invention relates to a coated product, in particular to a coated glass capable of high temperature heat treatment. 【Background technique】 [0002] Ordinary glass has no heat insulation function. With the enhancement of people's awareness of energy saving, many buildings or cars now use low-emissivity coated glass or heat-reflective coated glass. These coated glasses can play a very good heat insulation effect, making the building Increased comfort inside the vehicle or in the vehicle. [0003] U.S. Patent US2004 / 0258928A1 discloses a metal alloy film as a solar control film, the infrared reflective layer of the solar control film adopts a metal alloy, the metal alloy is made of silver and selected from copper, gold, aluminum, titanium, zirconium, hafnium Composition of one or several elements, preferably an alloy composed of 85 atomic percent silver and 15 atomic percent copper as the infrared reflective layer material. The emissivity of the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/04B32B15/00B32B17/00C03C17/36C03C27/12
Inventor 李艺明尚贵才
Owner FUYAO GLASS IND GROUP CO LTD
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