Coated glass with dual functions of highly reflecting visible light and blocking infrared rays and preparation method thereof

A technology of coated glass and reflective glass, which is applied in the field of dual-functional coated glass with high reflection of visible light and cut-off infrared rays and its preparation, to achieve the effects of energy saving, high reflectivity of visible light and firm combination

Inactive Publication Date: 2017-02-15
JIANGSU XIUQIANG GLASSWORK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is currently no coated glass that can simultaneously achieve the dual functions of high reflection of visible light and infrared cutoff.

Method used

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  • Coated glass with dual functions of highly reflecting visible light and blocking infrared rays and preparation method thereof
  • Coated glass with dual functions of highly reflecting visible light and blocking infrared rays and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, it is a dual-function coated glass with high visible light reflection and infrared cutoff provided in this embodiment. The dual-function coated glass includes a glass substrate 1 and a near-middle infrared reflection layer and a visible light enhanced reflection layer 4 sequentially arranged on the surface of the glass substrate 1 . In this embodiment, the near-middle infrared reflective layer includes an isolation layer 2 and a transparent conductive semiconductor layer 3 in sequence, and the isolation layer 2 is SiO x film layer, wherein x=1-2, the refractive index of the isolation layer 2 is 1.44-1.48; the transparent conductive semiconductor layer 3 is ITO, ATO, AZO, GZO or ZnO-SiO 2 Any one of the film layers; the visible light enhanced reflection layer 4 includes SiO arranged alternately in sequence x film layer and high refractive index medium film layer, wherein x=1-2, the SiO xThe refractive index of the film layer is 1.44-1.48; th...

Embodiment 2

[0035] Such as figure 2 As shown, it is a dual-function coated glass with high visible light reflection and infrared cutoff provided in this embodiment. The dual-function coated glass includes a float FTO glass substrate 5 and a visible light enhanced reflection layer 6 arranged on the surface of the float FTO glass substrate 5 .

Embodiment 3

[0037] This embodiment provides a method for preparing a dual-functional coated glass with high reflection of visible light and cut-off infrared rays, including the following steps:

[0038] 1. Glass cleaning: use deionized water to clean the glass and dry it to obtain clean glass;

[0039] 2. Put the clean glass in the vacuum box of sputtering coating, and treat the glass surface with plasma formed by 500-1000V voltage under the atmospheric pressure nitrogen, and then pump the air pressure of the vacuum box to (3.5-8.5)× 10 -4 Pa;

[0040] 3. Adopt the method of magnetron sputtering to plate the isolation layer, the near-middle infrared reflection layer and the visible light enhanced reflection layer on the glass surface sequentially. The specific operation is as follows:

[0041] 1) Plating isolation film system SiO x Film layer, where X=1-2: In the vacuum box, the flow ratio of oxygen and argon is 5-15%, and the sputtering pressure is (2.5-4.5)×10 -1 Pa, use pure silico...

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Abstract

The invention provides a coated glass with dual functions of highly reflecting visible light and blocking infrared rays and a preparation method thereof. The coated glass comprises near-middle infrared ray reflecting glass and a visible light reflection increasing layer arranged on the surface of the near-middle infrared ray reflecting glass. The near-middle infrared ray reflecting glass is a float FTO glass substrate; or the near-middle infrared ray reflecting glass comprises a glass substrate, an isolation layer, and a transparent conductive semiconductor layer, wherein the isolation layer and the transparent conductive semiconductor layer are sequentially arranged on the surface of the glass substrate, the isolation layer is a SiOx membrane layer, and the transparent conductive semiconductor layer is any one of ITO, ATO, AZO, GZO, and ZnO-SiO2 membrane layers. The visible light reflection increasing layer comprises SiOx membrane layers and high refractive index medium membrane layers which are alternately arranged. The high refractive index medium membrane layers comprise titanium dioxide, niobium pentoxide, zirconium dioxide, tin dioxide, zinc oxide, or a silicon nitride film. The obtained coated glass can block infrared rays, has a high reflectivity of visible light, and can prevent outdoor heat from entering the interior of window through the glass.

Description

technical field [0001] The invention belongs to the field of display windows, isolation windows, privacy one-way perspective protection glass plates of partition walls, LED lamp covers, cabinet windows and home appliance doors, etc., and specifically relates to a dual-function coated glass with high reflection of visible light and cut-off infrared rays and its preparation method. Background technique [0002] In the fields where glass is used as a window, such as isolation windows, partition walls, privacy one-way perspective protective glass panels, cabinet windows, and home appliance doors, because ordinary glass has a visible light transmittance of more than 89%, the items inside the window can be seen by outsiders. Peeping can not effectively protect privacy; at the same time, because the external heat (near and mid-infrared rays) can be transmitted to the inside of the window through ordinary glass, the temperature of the space inside the window will rise, and the cooli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
CPCC03C17/3417C03C17/3411
Inventor 赵青南董玉红赵杰刘旭
Owner JIANGSU XIUQIANG GLASSWORK CO LTD
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