High transparency type toughened double-silver low-e coated glass and preparation method thereof

Abstract

The invention provides a high transparency type toughened double-silver low-e coated glass, which is characterized in that: the coated glass comprises in sequence: a glass substrate, a bottom dielectric layer, a first barrier layer, a first functional layer, a second barrier layer, an intermediate dielectric layer, a third barrier layer, a second functional layer, a fourth barrier layer, and a top dielectric layer, wherein the bottom dielectric layer and the top dielectric layer are Si3N4 layers; the first, second, third and fourth barrier layers are a ZnO layer or an AZO layer or an NiCrOx layer; the first functional layer and the second functional layer are Ag layers; the intermediate dielectric layer is a ZnSnO3 layer or a combination layer of Si3N4 and ZnSnO3. The high transparency type toughened double-silver low-e coated glass uses a novel architecture membrane system, and has the advantages that: (1) the product is high in visible light transmittance, Tr>=80; (2) data drift is small before being toughened and after being toughened, the product has good and stable mechanical properties; and (3) the product has appearance color close to natural color and is true, beautiful and comfortable.

Description

technical field [0001] The invention relates to the technical field of coated glass, in particular to a high-transmittance temperable double-silver low-radiation coated glass and a preparation method thereof. Background technique [0002] Low-E glass is a high-performance glass product formed by depositing a multilayer film on the glass surface by magnetron sputtering, and depositing one or two or more layers of pure silver substrates in the multilayer film material. LOW-E glass highlights the shielding effect of glass on solar heat radiation, combines the high light transmittance of glass with the low transmittance of solar heat radiation, and successfully solves the problem of high light transmittance and low heat transfer. The co-existing problem of dual advantages of coefficient U value and shading coefficient SC value has a very good energy-saving effect. [0003] Compared with single-silver Low-E glass, double-silver Low-E glass has greatly improved the performance of...

AI Technical Summary

Problems solved by technology

[0004] While double-silver LOW-E glass has many advantages, it cannot avoid some defects, such as: low visible light transmittance of the product; unstable product performance; difficult follow-up processing, etc.

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