Low-emissivity coated glass

Abstract

The invention discloses low-emissivity coated glass, sequentially comprising glass, a first dielectric layer, a silver layer, a first shielding layer, a second dielectric layer, a second shielding layer, a third shielding layer and a third dielectric layer from inside to outside. In the invention, since three medium layers are adopted, the protection on the silver layer is enhanced, and the transmittance, the reflectivity and the colour of the low-emissivity coated glass can be effectively regulated by regulating the thicknesses of the three medium layers so as to widen the colour range of a product and beautify the product. The three shielding layers are adopted, wherein a dielectric layer is sandwiched between the first shielding layer and the second shielding layer, therefore, the inoxidizability of the silver layer in the low-emissivity coated glass is effectively improved; Meanwhile, the transmittance and the reflectivity can be regulated by regulating the thicknesses of the three dielectric layers, so that the film system can be used for producing multiple colours of sunshading low-emissivity glass with the radiation rate of 0.05-0.15 and the transmittance of 10-60%.

Description

technical field [0001] The invention relates to the technical field of low-emissivity coated glass, in particular to low-emission coated glass with high oxidation resistance. Background technique [0002] Low-emissivity glass (Low-E) is a film system composed of multiple layers of silver, copper or tin or other metals or their compounds coated on the surface of the glass. There are two main types of LOW-E glass according to their performance, namely high-transmittance type LOW-E Glass and sunshade type LOW-E glass. Among them, the high-transmittance LOW-E glass has high transmittance to visible light, high reflectivity to far-infrared rays, good heat insulation performance, good lighting performance and high solar energy acquisition ability, making it It has become an ideal energy-saving building material in cold northern regions. The difference between sun-shading LOW-E glass and ordinary LOW-E glass is that it enhances the sun-shading performance of the product and is mo...

AI Technical Summary

Problems solved by technology

[0003] At present, low-emissivity glass, especially sun-shading LOW-E glass, has some defects such as single color and low oxidation resistance, which affects the production and promotion of sun-shading LOW-E glass

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