Preparation method of glass material with high compactness, glass material and application

Abstract

The invention discloses a preparation method of a glass material with high compactness. The preparation method comprises the following steps: 1) obtaining a glass substrate; and 2) carrying out heat treatment on the glass substrate obtained in the step 1) for a certain time before the first chemical strengthening to obtain the glass material with high compactness, wherein the heat treatment temperature T heat and the strain point T of the glass material should be controlled according to the following formula: T heat = (T should-70 DEG C)-(T should + 20 DEG C); and the strain point T is less than or equal to 550 DEG C. According to the preparation method of the glass material with high compactness, the network structure of the glass can be more complete, the intrinsic strength of the glass is improved, and the glass has more excellent anti-falling performance after being subjected to subsequent ion exchange treatment.

Description

technical field [0001] The invention relates to the technical field of glass products, in particular to a method for preparing a high-density glass material, the glass material and its application. Background technique [0002] Ultra-thin glass, its thickness is usually between 0.1mm and 1.2mm. Of course, there are also some models that achieve a thickness of less than 0.1 mm; among them, ultra-thin glass with a thickness between 0.2 mm and 1 mm can be bent, and those with a thickness of less than 0.2 mm can be folded. Considering the scope of application, yield rate and cost, ultra-thin glass with a thickness of 0.1 mm to 0.5 mm occupies a larger share in the market. [0003] The ultra-thin glass is very thin, which also reduces the weight of the ultra-thin glass product itself. In the application, it can reduce the weight of the final product, thus bringing weight advantages. The "thinness" of ultra-thin glass also brings better optical quality to ultra-thin glass produc...

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a high-density glass material preparation method to solve the difficulty in the prior art of balancing the ion exchange capacity of the glass sample during the chemical strengthening process and the final obtained glass sample. The CT-LD has contradictory problems

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