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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, but it also has the unavoidable brittleness problem of glass materials, so the brittleness is reduced at the material level , Improving flexibility is still one of the important issues

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

Embodiment 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]

Embodiment 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 present invention relates to the field of glass, and specifically to a composition for glass, low brittle alkali-free glass and preparation methods and applications thereof. Background technique [0002] With the popularity of smartphones and tablets, the era of smart mobility has begun. In the past, mobile phones were limited to communication functions, but now the performance of smart devices including smartphones and tablets is close to that of notebooks, allowing people to perform and enjoy higher-level business and entertainment activities all the time with the convenience of wireless communication. Under this trend, the performance requirements for displays are also increasing, especially the picture quality and outdoor visual performance requirements for mobile smart devices are also increasing. At the same time, in order to reduce the burden of using handheld devices, the weight and thickness are becoming lighter. Thinning has become an in...

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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