Ultra-thin electronic touch screen glass and processing technology thereof

Abstract

The invention discloses ultra-thin electronic touch screen glass and a processing technology thereof. The ultra-thin electronic touch screen glass is prepared from the following components: silicon dioxide, aluminum oxide, a first additive, a fused salt treating agent and the like, wherein the first additive is used for improving the properties and ingredients of a glass substrate, the structure of the glass substrate is also optimized while the thermal property and chemical stability are improved, and the ion exchange effect is improved; and the fused salt treating agent is selected from a multiple-component fused salt blending system, the thermal decomposition temperature is increased, and the influence of nitrite ions is lowered. According to the ultra-thin electronic touch screen glassand the processing technology thereof, component proportion is reasonable in design, a preparation technology is optimized, the touch screen glass is prepared, the surface pressure stress value of the glass substrate is increased, anti-folding strength of the glass substrate is improved, meanwhile, the time required by chemical tempering is shortened, the production efficiency is improved, the cost is lowered, and the high practicality is achieved.

Description

technical field [0001] The invention relates to the field of ultra-thin glass, in particular to an ultra-thin electronic touch screen glass and a processing technology thereof. Background technique [0002] Touch screen glass, a chemically strengthened glass, is mainly used in electronic products such as touch screen panels, and has a wide range of applications. Nowadays, ultra-thin glass below 1mm is generally used. Commonly used are 0.7mm soda-lime glass, silica-alumina glass and boron Silica glass. [0003] Due to the reduction of thickness, the mechanical strength of glass will be greatly reduced. In order to solve this problem, we gradually developed a chemical tempering method, which uses potassium ions with a larger radius in molten salt to replace sodium ions with a smaller radius in the glass network to extrude The network structure on the glass surface improves the mechanical strength of the glass; the commonly used molten salts are mostly potassium nitrate molten...

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Problems solved by technology

[0003] Due to the reduction of the thickness, the mechanical strength of the glass will be greatly reduced. In order to solve this problem, we have gradually developed a chemical toughening method, using potassium ions with a larger radius in molten salt to replace sodium ions with a smaller radius in the glass network to squeeze The network structure on the surface of the glass improves the mechanical strength of the glass; the commonly used molten salt is mostly potassium nitrate molten salt, but in actual use, potassium nitrate molten salt is easy to decompose and produce potassium nitrite, and the nitrite ion will be extremely strong during the tempering process. Greatly affect the tempering effect; at the same time, there are many impurity ions in the potassium nitrate molten salt, which also greatly reduces the tempering effect

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