Passive low-energy-consumption offline temperable LOW-E coated glass and preparation process thereof

Abstract

The invention discloses passive low-energy-consumption offline temperable LOW-E coated glass, which comprises a glass substrate, and a first dielectric layer, a second dielectric layer, a metal silver layer, a first shielding layer, a second shielding layer, a third dielectric layer, a fourth dielectric layer and a fifth dielectric layer are sequentially sputtered on the glass substrate from bottom to top, wherein the first dielectric layer and the fourth dielectric layer are silicon nitride layers, the second dielectric layer and the third dielectric layer are zinc oxide layers, the fifth dielectric layer is a zirconium oxide layer, the first shielding layer and the second shielding layer are a nichrome layer and a nichrome layer respectively, and the preparation process adopts high-vacuum magnetron sputtering coating equipment for layer-by-layer coating. The five dielectric layers are adopted, the visible light transmittance of the film layer is effectively increased, it is guaranteed that the film layer has a good anti-damage effect, the shielding layer effectively protects the silver layer, and the oxidation resistance of the silver layer is improved; the visible light transmittance of the low-emissivity glass is not lower than 89%, the emissivity is not larger than 0.095, and the use standard of passive low-energy-consumption buildings is met.

Description

technical field [0001] The invention relates to the technical field of low-radiation glass, in particular to a passive low-energy off-line temperable LOW-E coated glass and a preparation process thereof. Background technique [0002] Low-E glass, also known as low-emissivity glass, is a film system product composed of multiple layers of metal or other compounds coated on the glass surface. Its coating layer has the characteristics of high transmission of visible light and high reflection of mid- and far-infrared rays, which makes it have excellent heat insulation effect and good light transmission compared with ordinary glass and traditional architectural coated glass. [0003] Glass is an important building material. With the continuous improvement of decorative requirements for buildings, the use of glass in the construction industry is also increasing. Nowadays, when people choose glass doors and windows of buildings, in addition to considering their aesthetics and appea...

AI Technical Summary

Problems solved by technology

For this reason, an object of the present invention is to propose a passive low-energy off-line temperable LOW-E coated glass, which solves the problems of low heat transfer coefficient and low shading coefficient of existing passive low-energy low-radiation glass

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