Composition for glass, low-brittleness alkali-free glass and preparation method and application thereof

An alkali-free glass and composition technology, applied in the field of glass, to achieve the effects of high elastic modulus, low melting temperature, high temperature surface tension, and low liquidus temperature

Active Publication Date: 2016-05-25
WUHU DONGXU OPTOELECTRONICS EQUIP TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of flexible packaging cover materials, the low-brittleness ultra-thin flexible non-alkali glass cover is far superior to polymer materials in terms of strength and air tightness

Method used

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  • Composition for glass, low-brittleness alkali-free glass and preparation method and application thereof
  • Composition for glass, low-brittleness alkali-free glass and preparation method and application thereof
  • Composition for glass, low-brittleness alkali-free glass and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0058] Examples 1-9

[0059] Weigh each component as shown in Table 1, mix well, pour the mixture into a platinum crucible, then heat in a resistance furnace at 1430°C 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. Various properties of each glass product were measured respectively, and the results are shown in Table 1.

[0060] Table 1

[0061]

[0062]

Example Embodiment

[0063] Examples 10-18

[0064] According to the method of Example 4, the difference is that the performance measurement results of the mixture components and the obtained product are shown in Table 2.

[0065] Table 2

[0066]

[0067]

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PUM

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Abstract

The invention relates to the field of glass and discloses a composition for glass, low-brittleness alkali-free glass and a preparation method and application thereof. The composition comprises 45-66 mol% of SiO2, 3-19 mol% of B2O3, 3-10 mol% of Al2O3, 3-12 mol% of MgO, 0-6 mol% of CaO, 0-5 mol% of SrO, 3-10 mol% of BaO, 0-3 mol% of ZnO and 0.1-6mol% of RE2O3. The glass has the high strain point, high elasticity modulus, high chemical stability, low melting temperature and high-temperature surface tension, low liquidus temperature, low expansion coefficient and low brittleness, and meanwhile has the good strength and toughness.

Description

technical field [0001] The invention relates to the field of glass, in particular to a composition for glass, low brittle alkali-free glass and a preparation method and application thereof. Background technique [0002] With the popularity of smart phones and tablet computers, the era of smart mobility has opened. In the past, mobile phones were limited to communication functions, but now the performance of smart devices including smartphones and tablet computers is close to that of notebooks, allowing people to perform and enjoy high-level business and entertainment activities all the time with the convenience of wireless communication. Under such a trend, the requirements for display performance are also continuously increasing, especially for the picture quality of mobile smart devices and the requirements for outdoor visual performance. Thinning has become an inevitable trend. Under the guidance of this development trend, the display panel is developing in the directio...

Claims

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Application Information

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IPC IPC(8): C03C4/00C03C3/095
CPCC03C3/095C03C4/00C03C2204/00
Inventor 张广涛闫冬成王丽红胡恒广王俊峰徐兴军
Owner WUHU DONGXU OPTOELECTRONICS EQUIP TECH
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