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

Alkali-free glass composition, alkali-free glass and application

A glass composition and alkali-free glass technology, applied in the field of glass, can solve the problems of damage to other properties, unsatisfactory chemical corrosion resistance, etc., and achieve the effects of high mechanical strength, suitable chemical corrosion resistance, and high strain point temperature

Active Publication Date: 2022-03-25
DONGXU OPTOELECTRONICS TECH CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to overcome the problem that improving the glass mechanical properties existing in the prior art will damage other properties (such as heat resistance stability, chemical corrosion resistance) so that it cannot meet the technical requirements of TFT liquid crystal display, and provide an alkali-free glass composition And alkali-free glass and its application

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
  • Alkali-free glass composition, alkali-free glass and application
  • Alkali-free glass composition, alkali-free glass and application
  • Alkali-free glass composition, alkali-free glass and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-24 and comparative example 1-3

[0119] According to the composition formula of the alkali-free glass composition shown in Table 1, all components were mixed uniformly, and then heated at 1600° C. for 10 hours, and stirred slowly at a uniform speed. The melted glass is poured into the stainless steel cast iron grinding tool to form a specified block glass product, and then the glass product is placed in the annealing furnace at the corresponding annealing point T a Anneal 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 with a thickness of 0.5mm. Various properties of each glass product were measured respectively, and the results are shown in Table 2.

[0120]

[0121] "-" in Table 1 means that this component is not contained or this parameter does not exist.

[0122]

[0123]

[0124]

[0125]

[0126]

[0127]

[0128]

[0129] As can ...

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
liquidus temperatureaaaaaaaaaa
strain pointaaaaaaaaaa
liquidus temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of glass, and discloses an alkali-free glass composition, an alkali-free glass and a preparation method thereof. The alkali-free glass composition includes: based on the total weight of the alkali-free glass composition, the glass composition contains 58-64wt% SiO 2 , 16‑19wt% Al 2 o 3 , 7‑13 wt% of B 2 o 3 +P 2 o 5 , 0.5‑3.5wt% of MgO, 4‑8wt% of CaO, 0‑4wt% of SrO, 0‑2.5wt% of BaO, 0‑4wt% of ZnO, less than 0.05wt% of R 2 O, where R 2 O is for Li 2 O, Na 2 O, K 2 The sum of the content of O. The glass prepared by the composition of the present invention has higher mechanical strength, lower density, higher chemical corrosion resistance (i.e. high chemical stability), low coefficient of thermal expansion (less than 38×10 ‑7 / °C), high strain point temperature and other excellent properties, can be used in the field of preparing display devices and / or solar cells, and has a good application prospect.

Description

technical field [0001] The invention relates to the field of glass, in particular to an alkali-free glass composition, an alkali-free glass and applications. Background technique [0002] Liquid crystal display technology has become the most important key technology for image transmission and reproduction in modern times. The imaging principle of the liquid crystal display is to place the liquid crystal between two pieces of conductive glass, driven by the electric field between the two electrodes, to cause the electric field effect of twisting the liquid crystal molecules to control the transmission or shielding function of the light source. The image is displayed by generating light and shade between them. If a color filter is added, a color image can be displayed. TFT liquid crystal display mode has a pixel response speed 600 times faster than the old LCD screen. The addition of advanced silicon electrodes greatly speeds up the pixel response speed of the LCD screen and...

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): C03C3/097C03C3/091C03C3/093C03C4/20C03C4/00
CPCC03C3/091C03C3/093C03C3/097C03C4/00C03C4/20
Inventor 张广涛李青郑权王丽红闫冬成安利营王俊峰田鹏
Owner DONGXU OPTOELECTRONICS TECH CO LTD
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