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Chemically strengthened glass with compound stress advantage and its preparation method and application

A kind of strengthened glass and chemical technology, which is applied in the field of chemically strengthened glass and its preparation, can solve the problems of low drop resistance, low deep compressive stress, and poor mechanical properties, and achieve excellent drop resistance, high mechanical strength, and low dielectric strength. Effect of Electrical Loss Characteristics

Active Publication Date: 2021-08-27
CHONGQING XINJING SPECIAL GLASS CO LTD
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  • Claims
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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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  • Chemically strengthened glass with compound stress advantage and its preparation method and application
  • Chemically strengthened glass with compound stress advantage and its preparation method and application
  • Chemically strengthened glass with compound stress advantage and its preparation method and application

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Embodiment 1-5

[0067] Embodiments 1-5 respectively provide a chemically strengthened glass and a chemically strengthened method thereof. The relevant properties of the chemically strengthened glass and the relevant process parameters of the chemical strengthening method are respectively described in Table 1 below.

[0068] Wherein, each of the chemically strengthened glass chemical strengthening methods is to carry out a chemical strengthening treatment (single binary ion strengthening treatment) for each plain glass to be chemically strengthened in a monovalent metal nitrate mixed salt bath containing sodium nitrate and potassium nitrate ; Wherein, the temperature and time of the first chemical strengthening treatment in each embodiment and the monovalent metal nitrate mixed salt bath used are respectively shown in the following table 1.

[0069] Meanwhile, the composition of the plain glass to be chemically strengthened in each embodiment is also shown in Table 1. Table 1 also shows the r...

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Abstract

The invention discloses a chemically strengthened glass as well as a preparation method and application thereof. When the chemically strengthened glass has a thickness of 0.4-1.5 mm, and the compressive stress CS_F of the plane in the 50 μm area below the surface depth satisfies: CS_F is greater than or equal to 215.24-230.61 / (1+EXP((T-0.715) / 0.203)) . The chemically strengthened glass of the present invention has a high level of deep stress, high drop resistance strength, and high mechanical strength. But also has a lower dielectric constant and dielectric loss. Since the chemically strengthened glass has this advantage, the application of the chemically strengthened glass is effectively expanded. It is obtained by a single binary ion exchange treatment method, and its chemical strengthening method can effectively save the amount of salt bath used, simplifies the strengthening treatment process, ensures the stability of the performance of the chemically strengthened glass, and reduces the production cost.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C21/00C03C3/085C03C3/093C03C3/097
CPCC03C3/085C03C3/093C03C3/097C03C21/002
Inventor 胡伟覃文城谈宝权陈芳华
Owner CHONGQING XINJING SPECIAL GLASS CO LTD
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