A composition for glass, low surface tension alkali-free glass and its preparation method and application

A low surface tension, alkali-free glass technology, applied in instruments, optics, electrical solid devices, etc., can solve the problems of low thermal stability and formation stability of alkali-free glass plates, and achieve high specific modulus and high strain point. , the effect of high liquidus temperature

Active Publication Date: 2018-11-27
WUHU DONGXU OPTOELECTRONICS EQUIP TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The object of the present invention is to provide a glass composition, low surface tension alkali-free glass and its preparation method and application

Method used

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  • A composition for glass, low surface tension alkali-free glass and its preparation method and application
  • A composition for glass, low surface tension alkali-free glass and its preparation method and application
  • A composition for glass, low surface tension alkali-free glass and its preparation method and application

Examples

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Effect test

Embodiment 1-17

[0076] Weigh the components as shown in Tables 1 and 2, mix well, pour the mixture into a platinum crucible, and then heat it in a resistance furnace at 1530°C for 4 hours, and stir with a platinum rod to expel bubbles. Pour the molten glass into a stainless steel cast iron grinding tool to shape it into a prescribed block glass product. Then, the glass product is annealed in an annealing furnace at 830°C for 2 hours. The power is turned off and the furnace is cooled to 25°C. The glass products are cut, ground, polished, cleaned with deionized water and dried to obtain glass products. The various properties of each glass product were measured, and the results are shown in Tables 1 and 2.

Embodiment 18-20 and comparative example 1-4

[0078] According to the method of Example 3, the difference is that the composition of the mixture and the performance measurement results of the obtained product are shown in Table 3.

[0079] Comparing the data in Table 1-2 and Table 3, it can be seen that the glass prepared by the present invention has lower surface tension and higher overall stability. The glass composition or low surface tension alkali-free glass of the present invention can be used to prepare display devices and / or solar cells, and is especially useful for preparing substrate glass substrate materials for flat panel display products.

[0080] Comparing Example 1 and Example 18, it can be seen that B 2 O 3 +0.5*MgO+0.3*Y 2 O 3 <8mol%, which can significantly improve the overall performance of the prepared glass such as thermal stability and glass formation stability.

[0081] Comparing Example 1 and Example 19, it can be seen that when the glass composition contains B 2 O 3 , Based on the total moles of each com...

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Abstract

The invention relates to the field of glass manufacturing, and discloses a composition for glass, which contains SiO2, Al2O3, ZnO, WO3, CaF2 and / or SrCl2, alkaline earth metal oxides and rare earth metal oxides, and is used as a composition for glass Based on the total moles of each component of the product, the content of SiO2 is 68-73.5mol%, the content of Al2O3 is 11-16mol%, the content of ZnO is 0.1-4mol%, the content of WO3 is 0.001-0.5mol%, and the content of CaF2 And / or the content of SrCl2 is 0.3-1.5 mol%, the content of alkaline earth metal oxides is 3-20 mol%, and the content of rare earth metal oxides is 0.1-3 mol%. The low surface tension non-alkali glass and its preparation method and application are also disclosed. The alkali-free glass prepared by the invention has excellent comprehensive stability and low surface tension.

Description

Technical field [0001] The invention relates to the field of glass manufacturing, in particular to a composition for glass, a low surface tension alkali-free glass, and a preparation method and application thereof. Background technique [0002] With the rapid development of the optoelectronic industry, the demand for various display devices is increasing, such as active matrix liquid crystal display (AMLCD), organic light-emitting diode (OLED), and active matrix liquid crystal display (LTPS TFT- LCD) devices, these display devices are based on the use of thin film semiconductor materials to produce thin film transistor (TFT) technology. The mainstream silicon-based TFTs can be divided into amorphous silicon (a-Si) TFTs, polycrystalline silicon (p-Si) TFTs and single crystal silicon (SCS) TFTs. Among them, amorphous silicon (a-Si) TFTs are the current mainstream TFT-LCDs. Applied technology, its production and preparation can be completed at a temperature of 300-450°C. For displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/095G02F1/1333H01L27/12
CPCC03C3/095G02F1/1333G02F1/133302H01L27/1218
Inventor 张广涛何豪闫冬成王丽红胡恒广王俊峰李志勇
Owner WUHU DONGXU OPTOELECTRONICS EQUIP TECH
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