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High-acid-resistant alkali-free aluminoborosilicate glass suitable for floating process, and preparation method and applications thereof

A borosilicate glass, float process technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problem of insufficient environmental protection components, achieve high strain point, high acid resistance, high elastic modulus Effect

Pending Publication Date: 2018-10-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the glass composition ratio of the above patents, the alkali-free aluminoborosilicate glass ratio provided contains Ba, Sn and other harmful elements, and the composition is not environmentally friendly.

Method used

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  • High-acid-resistant alkali-free aluminoborosilicate glass suitable for floating process, and preparation method and applications thereof
  • High-acid-resistant alkali-free aluminoborosilicate glass suitable for floating process, and preparation method and applications thereof
  • High-acid-resistant alkali-free aluminoborosilicate glass suitable for floating process, and preparation method and applications thereof

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preparation example Construction

[0032] The invention provides a method for preparing high acid-resistant alkali-free aluminoborosilicate glass suitable for a float production process, comprising the following steps:

[0033] 1) Selection of raw materials: according to the mole fraction of each component in the glass: 64-71% SiO 2 , 11~13.5% Al 2 o 3 , 6~8%B 2 o 3 , 4~6.4% MgO, 3~4.8% CaO, 3~4.8% SrO, 0~3.2% ZnO, 0~1% CeO 2 ,0~1%Yb 2 o 3 Choose ingredients. And the sum of the mole percentages of each oxide satisfies 100%. Of which SiO 2 、Al 2 o 3 , B 2 o 3 , MgO, CaO, SrO, ZnO, CeO 2 , Yb 2 o 3 They are introduced by quartz sand, alumina, boric acid, light magnesium oxide, calcium carbonate, strontium carbonate, zinc oxide, cerium oxide, and ytterbium oxide.

[0034] 2) Glass preparation process: Calculate the required amount of each raw material in the batch according to the designed components, weigh it with an analytical balance, then put all the raw materials in the mixing bottle and mix t...

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Abstract

The invention discloses a high-acid-resistant alkali-free aluminoborosilicate glass suitable for floating process, and a preparation method and applications thereof. 100% of the high-acid-resistant alkali-free aluminoborosilicate glass comprises, by oxide molar percentage content, 64 to 71% of SiO2, 11 to 13.5% of Al2O3, 6 to 8% of B2O3, 4 to 6.4% of MgO, 3 to 4.8% of CaO, 3 to 4.8% of SrO, 0 to 3.2% of ZnO, 0 to 1% of CeO2, 0 to 1% of Yb2O3. The optimal acir resistance parameters of the high-acid-resistant alkali-free aluminoborosilicate glass is HF-10vol%, 20 DEG C, 20min, 2.54mg / cm<2>; thehardness is high; the strain point is high; the elastic modulus is high; the high-acid-resistant alkali-free aluminoborosilicate glass is suitable for floating process, and can be used for producing glass substrates of thin film transistor liquid crystal displays.

Description

technical field [0001] The invention belongs to the technical field of glass, and in particular relates to a highly acid-resistant alkali-free aluminoborosilicate glass suitable for a float process and a preparation method and application thereof. Background technique [0002] Substrate glass is the key basic material of TFT-LCD. It plays the role of fixing liquid crystal molecules and manufacturing control points in the TFT-LCD display system. Its performance largely determines the performance of TFT-LCD products. Therefore, the TFT-LCD display system has extremely high requirements on the substrate glass, and its performance must perfectly meet the needs of TFT-LCD. [0003] The United States and Japan have always been in the leading position in the research of TFT-LCD substrate glass. The domestic substrate glass industry started relatively late, and the domestic display panel has a relatively complete production line, but the demand for high-generation substrate glass r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095C03B19/02C03B25/00C03B18/00
CPCC03B18/00C03B19/02C03B25/00C03C3/095
Inventor 王静杜睿韩建军刘超谢俊阮健
Owner WUHAN UNIV OF TECH
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