Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of alkali-free aluminoborosilicate glass and preparation method thereof

A borosilicate glass, alkali aluminum technology, applied in glass manufacturing equipment, glass molding, manufacturing tools and other directions, can solve problems such as non-compliance with environmental protection requirements, and achieve enhanced glass network structure, easy acquisition, and simple preparation process. Effect

Active Publication Date: 2022-01-14
CENT SOUTH UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two clarifiers are gradually abandoned because they do not meet the requirements of environmental protection. SnO, SnO 2 Gradually become the mainstream clarifier for substrate glass

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of alkali-free aluminoborosilicate glass and preparation method thereof
  • A kind of alkali-free aluminoborosilicate glass and preparation method thereof
  • A kind of alkali-free aluminoborosilicate glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of alkali-free aluminoborosilicate glass, the mass percentage of glass is: 60.0wt% SiO 2 , 19 wt% Al 2 o 3 , 5.5 wt% B 2 o 3 , 2.0wt%P 2 o 5 , 2.5wt% MgO, 5.5wt% CaO, 5.0wt% SrO, 0.5wt% ZnO, plus 0.2wt% SnO of the total weight of raw materials 2 .

[0041] The preparation method of glass comprises the following steps: 1) calculating the mass fraction of batch materials and the corresponding raw material consumption according to the mass fractions of the above-mentioned oxides, and accurately weighing each raw material according to the proportion; 2) pouring the glass raw material obtained in step 1 into a mortar 3) Put the mixed glass batch into a corundum crucible or platinum crucible or a melting pool, and then melt it at a high temperature of 1650-1680°C for 3 hours; 4) Pour the uniformly melted high-temperature glass liquid into the preheated It is formed in a stainless steel mold, and then transferred to a muffle furnace at 680°C for annealing for 3 h...

Embodiment 2

[0044] A kind of alkali-free aluminoborosilicate glass, the mass percentage of glass is: 60.0wt% SiO 2 , 17.5 wt% Al 2 o 3 , 4.0 wt% B 2 o 3 , 5.0wt%P 2 o 5 , 2.0wt% MgO, 6.0wt% CaO, 5.0wt% SrO, 0.5wt% ZnO, plus 0.2wt% SnO 2 .

[0045] The preparation method of glass comprises the following steps: 1) calculating the mass fraction of batch materials and the corresponding raw material consumption according to the mass fractions of the above-mentioned oxides, and accurately weighing each raw material according to the proportion; 2) pouring the glass raw material obtained in step 1 into a mortar 3) Put the mixed glass batch into a corundum crucible or platinum crucible or a melting pool, and then melt it at a high temperature of 1650-1680°C for 3 hours; 4) Pour the uniformly melted high-temperature glass liquid into the preheated It is formed in a stainless steel mold, and then transferred to a muffle furnace at 680°C for annealing for 3 hours to eliminate the thermal stres...

Embodiment 3

[0048] A kind of alkali-free aluminoborosilicate glass, the mass percentage of glass is: 60.0wt% SiO 2 , 13.5 wt% Al 2 o 3 , 8.0 wt% B 2 o 3 , 5.0wt%P 2 o 5 , 6.0wt% MgO, 4.0wt% CaO, 3.0wt% SrO, 0.5wt% ZnO, plus 0.4wt% SnO 2 .

[0049] The preparation method of glass comprises the following steps: 1) calculating the mass fraction of batch materials and the corresponding raw material consumption according to the mass fractions of the above-mentioned oxides, and accurately weighing each raw material according to the proportion; 2) pouring the glass raw material obtained in step 1 into a mortar 3) Put the mixed glass batch into a corundum crucible or platinum crucible or a melting pool, and then melt it at a high temperature of 1650-1680°C for 3 hours; 4) Pour the uniformly melted high-temperature glass liquid into the preheated It is formed in a stainless steel mold, and then transferred to a muffle furnace at 680°C for annealing for 3 hours to eliminate the thermal stres...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strain pointaaaaaaaaaa
densityaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

An alkali-free aluminoborosilicate glass and its preparation method, the glass composition contains 50.0-60.0% SiO in mass % 2 , 13.5~23.0% Al 2 o 3 ,4.0~8.0%B 2 o 3 , 2.0~5.0%P 2 o 5 , 2.0-8.0% MgO, 3.0-10.0% CaO, 0.5-5.0% SrO, 0.5-2.0% ZnO, plus SnO 2 The amount is 0.2-1.0wt%. The strain point of the glass prepared by the present invention is 685-742°C, the transformation point is 721-780°C, and the coefficient of thermal expansion is 29.91×10 ‑7 ~33.30×10 ‑7 / ℃, the density is 2.3922~2.4584g / cm 3 , the transmittance in the visible light region is 91.84-92.14%, and the bending strength is 75.0-88.9MPa.

Description

technical field [0001] The invention belongs to the field of glass technology, and relates to substrate glass for flat panel displays and a preparation method thereof, in particular to alkali-free aluminoborosilicate glass with excellent comprehensive performance for TFT-LCDs and a preparation method thereof. Background technique [0002] At present, among many new flat panel display technologies, thin film transistor liquid crystal display (TFT-LCD) has gradually replaced the traditional cathode ray tube (CRT) due to its large display size, good environmental performance, high definition, and light weight. ) display technology has become a mainstream product in the flat panel display technology and even the display market. [0003] The glass substrate for TFT-LCD must have the following performance indicators and technical parameters: [0004] 1) The thermal expansion coefficient of the glass substrate needs to match the silicon material in the thin film transistor array, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/097C03C1/00C03B19/02
CPCC03C3/097C03C1/004C03B19/02
Inventor 卢安贤何茜张家硕
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com