Chemical tempered glass with combined stress advantage as well as preparation method and application thereof

Abstract

The invention discloses chemical tempered glass with a combined stress advantage as well as a preparation method and application thereof. When the chemical tempered glass is 0.4-1.5mm in thickness specification, and the planar pressure stress CS_F at an area which is 50 mu m below a surface depth meets: CS_F is greater than or equal to 215.24-230.61 / (1+EXP((T-0.715) / 0.203)). The chemical temperedglass disclosed by the invention has high-level deep layer stress and high drop-resistant strength, and is high in mechanical strength. The chemical tempered glass further has relatively low dielectric constant and dielectric loss. As the chemical tempered glass has the advantages, the application of the chemical tempered glass is effectively expanded. The chemical tempered glass is obtained by adopting a single binary ion exchange processing method, the chemical reinforcing method of the chemical tempered glass can effectively save the usage amount of salt bath, the reinforcing treatment process is simplified, the stability of chemical tempered glass performance is guaranteed, and the cost of production is lowered.

Description

technical field [0001] The invention belongs to the technical field of glass products, and in particular relates to a chemically strengthened glass and its preparation method and application. Background technique [0002] Glass is widely used in daily life due to its own characteristics of transparency and high temperature resistance. For example, glass is widely used in protective devices, decoration and other fields. However, glass also has certain deficiencies, such as weak impact resistance and brittleness, which limit the application of glass in some fields. [0003] With the popularity of electronic products, the requirements for glass materials are getting higher and higher. For example, the current screen protection materials on smartphones are all chemically strengthened glass materials. In recent years, due to the demand for 5G communication, the metal back cover material of smartphones has gradually been replaced by ceramics, glass and other materials. Due to t...

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Problems solved by technology

[0014] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a chemically strengthened glass and its preparation method, so as to solve the problem that the existing chemically strengthened glass has too low deep layer compressive stress, low drop resistance and other mechanical properties that cannot be produced with it. costly technical issues

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