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Composition for glass, glass, preparation method and application thereof

A composition and glass technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems that are difficult to improve, such as stress relaxation and compression stress enhancement, good impact resistance strength, rough surface of touch screen, etc., to achieve improvement Effects of glass stability, high impact strength, and enhanced compressive stress

Active Publication Date: 2020-10-27
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, the touch screen cover glass is prone to contact and friction, and the resulting scratches directly cause the surface of the touch screen to be rough and smooth, which affects the use effect and is more likely to cause the screen to break; but some data show that 80% of the display The damage of the device is caused by the damage of the display screen caused by accidentally falling
[0004] The glass composition used to protect display devices in the prior art, after chemical strengthening, it is difficult to obtain a glass with excellent comprehensive properties such as improved stress relaxation and compression stress enhancement, deep strengthening depth, and good impact resistance strength.

Method used

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  • Composition for glass, glass, preparation method and application thereof
  • Composition for glass, glass, preparation method and application thereof
  • Composition for glass, glass, preparation method and application thereof

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preparation example Construction

[0032] In a second aspect, the present invention provides a method for preparing glass, the method comprising: sequentially mixing, melting, homogenizing, casting and annealing the composition for glass.

[0033] In the method of the present invention, the melting can be carried out in a platinum rhodium crucible. Preferably, the melting conditions include: a temperature of 1450-1630°C and a time of 6-12h. Those skilled in the art can determine the specific melting temperature and melting time according to actual conditions, which are well known to those skilled in the art and will not be repeated here.

[0034] In the method of the present invention, the pouring molding is a conventional pouring molding method in the art, for example, it can be performed in a stainless steel mold, and the specific steps and condition parameters are well-known technologies in the field, and will not be repeated here.

[0035] In the method of the present invention, preferably, the annealing condition...

Embodiment 1-18

[0054] Weigh the components according to Table 1-3, mix them, pour the mixture into a platinum-rhodium crucible, and then heat it at 1620°C for 9 hours, and cast the molten glass into a prescribed block glass The glass product is then annealed in an annealing furnace at 640 for 3 hours. Put glassware in pure KNO 3 In the molten strengthening liquid, the glass product is made after chemical strengthening. The various properties of each glass product were measured, and the results are shown in Table 1 to Table 3.

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PUM

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Abstract

The invention relates to the field of glass materials, and discloses a composition for glass, glass and a preparation method and application thereof. The composition for glass of the present invention, based on the total weight of the composition for glass, contains 45-66% by weight of SiO 2 , 10‑23% by weight Al 2 o 3 , 0.01‑10% by weight of B 2 o 3 , 0.01‑12% by weight of P 2 o 5 , 10‑19% by weight Na 2 O, 0.01‑5% by weight of K 2 O, 0.01‑5% by weight Li 2 O, 0.01-5% by weight of CaO and 0.01-3% by weight of TiO 2 . The components in the glass composition of the present invention act synergistically to effectively improve the stress relaxation of the prepared glass, and have the advantages of enhanced compressive stress, deep strengthening depth and high impact resistance. It is suitable for protecting display devices, especially for protective covers of display devices, such as touch screen covers.

Description

Technical field [0001] The invention relates to the field of glass materials, in particular to a composition for glass and glass, and a preparation method and application thereof. Background technique [0002] With the rapid development of display technology in recent years, high-tech electronic display products such as liquid crystal display (TFT-LCD), low-temperature polysilicon display technology, and OLED display technology have emerged one after another. Displays are widely used as electronic display equipment in public places such as high-definition wall-mounted televisions, notebook computers, monitors, communication equipment, home appliance design, the Internet, and stadiums. [0003] Organic materials have been used in protective cover plates for the above-mentioned display devices, but they have not been widely used due to the defects of the materials themselves (easy to aging, poor transmittance). Glass has always been an indispensable material in the development of di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/097C03B19/02C03C21/00G06F3/041
CPCC03B19/02C03C3/097C03C21/002G06F3/0416
Inventor 徐兴军李青郑权闫冬成王丽红张广涛李俊锋
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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