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A kind of composition for glass and aluminosilicate glass and its preparation method and application

A technology of aluminosilicate glass and composition, applied in semiconductor devices, photovoltaic power generation, electrical components, etc., to achieve high thermal expansion coefficient, good tempering effect, and high elastic modulus

Active Publication Date: 2020-12-25
DONGXU OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of flexible packaging cover materials, substrate materials, substrate composite materials, etc., chemically toughened low-brittle ultra-thin flexible glass is far superior to polymer materials in terms of strength and air tightness, but there are also unavoidable problems with glass materials. Fragility issues, shattering damage when dropped still needs to be avoided

Method used

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  • A kind of composition for glass and aluminosilicate glass and its preparation method and application
  • A kind of composition for glass and aluminosilicate glass and its preparation method and application
  • A kind of composition for glass and aluminosilicate glass and its preparation method and application

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Embodiment 1-20

[0100] Weigh each component according to Table 1-3, mix well, pour the mixture into a platinum crucible, then heat in a 1450°C resistance furnace for 4 hours, and stir with a platinum rod to remove air bubbles. Pour the molten glass into a stainless steel cast iron mold to form a specified block glass product, then anneal the glass product in an annealing furnace for 2 hours, turn off the power and cool down to 25°C with the furnace. The glass product is cut, ground and polished, then cleaned with deionized water and dried to obtain a finished glass product with a thickness of 0.5mm. The various properties of each glass product were measured respectively, and the results are shown in Table 1-3, wherein, RO means alkaline earth metal oxide, R 2 O stands for Li 2 O+Na 2 O+K 2 O.

[0101] Among them, Example 3 and Example 7 are treated by secondary strengthening process (wherein, those skilled in the art should understand that the secondary chemical strengthening treatment me...

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Abstract

The invention relates to the field of glass, and discloses a composition for glass, aluminosilicate glass, a preparation method and application thereof. Specifically, based on the total number of moles of each component, the composition for glass contains 60-85 mol% of SiO in terms of oxides. 2 +B 2 o 3 +P 2 o 5 +Ge 2 o 3 +Te 2 o 3 , 1‑20mol% Al 2 o 3 + Ga 2 o 3 , 10‑25mol% Li 2 O+Na 2 O+K 2 O, 0.01-15mol% alkaline earth metal oxide, the alkaline earth metal oxide is one or more of MgO, CaO, SrO and BaO; wherein, the brittleness factor C value of the composition for glass is -0.25 -20. The glass prepared by the invention has good tempering effect, high strain point, high elastic modulus, low melting temperature, high thermal expansion coefficient and good toughness.

Description

technical field [0001] The invention relates to the field of glass, in particular to a composition for glass, aluminosilicate glass and a preparation method and application thereof. Background technique [0002] In the field of flat panel display, the touch screen product market has developed rapidly in recent years. The current mainstream product is a capacitive touch screen, and its main component is a glass substrate that protects the surface. With the development of display technology and touch technology, the market's requirements for glass substrates are increasing. As touch screens are more and more widely used, almost all devices of large, medium and small sizes have touch screens, so the most important performance of touch screens is to have excellent mechanical properties, scratch resistance and scratch resistance, and this performance is reflected by the strength of the glass Yes, so improving the strength of the glass itself is the key. In addition to being aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/097C03C3/064C03C21/00H01L31/048
CPCC03C3/064C03C3/097C03C21/002H01L31/0481Y02E10/50
Inventor 张广涛李青王俊峰王肖义闫冬成王丽红郑权
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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