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

Process for preparing rare-earth green long-lasting luminescent glass

A technology of long afterglow and glass, which is applied in the field of preparation of rare earth green long afterglow glass, which can solve the problems of narrow application range, single excitation source, complicated process, etc., and achieve the effect of long afterglow time, simple preparation method and bright afterglow

Inactive Publication Date: 2004-11-17
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF2 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to be divided into two steps to obtain the product, and must be carried out under a reducing atmosphere, the process is complicated, and the cost is high; the obtained product needs to be excited by a laser light source, which has the disadvantages of a single excitation source and a narrow application range

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
  • Process for preparing rare-earth green long-lasting luminescent glass
  • Process for preparing rare-earth green long-lasting luminescent glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The molar percentage composition of the glass is: 5% lithium carbonate, 30% barium oxide, 5% aluminum oxide, 10% boron trioxide, 50% silicon dioxide, and 0.05% terbium oxide. After grinding and mixing the raw materials, put them into a crucible, keep the temperature at 1300°C for one hour in a high-temperature furnace, pour them into a preheated mold, anneal at 500°C for half an hour, and cool to room temperature to obtain a colorless and transparent long afterglow glass . After irradiating the glass with UV254nm ultraviolet lamp for half an hour, the glass emits a bright green long afterglow, and after 10 hours after stopping the excitation, the afterglow of the glass is still visible to the naked eye in the dark. After the afterglow disappears, irradiate the whole piece of glass with long-wave ultraviolet light with a wavelength of 366nm for 30 seconds. After removing the excitation light source, the green long afterglow of the glass reappears, that is, the long after...

Embodiment 2

[0028] The molar percentage composition of the glass is: 40% barium oxide, 10% aluminum oxide, 8% boron trioxide, 42% silicon dioxide, and 0.002% terbium oxide. After the raw materials are ground and mixed, put them into a crucible, keep the temperature at 1400°C for one hour in a high-temperature furnace, pour into a preheated mold, anneal at 550°C for one hour, and cool to room temperature to obtain a colorless and transparent long afterglow glass . After irradiating the glass with UV254nm ultraviolet lamp for half an hour, the glass emits a bright green long afterglow, and after 7 hours of stopping excitation, the afterglow of the glass is still visible to the naked eye in the dark. After the afterglow disappears, irradiate the whole piece of glass with a laser with a wavelength of 514nm for 20 seconds. After removing the laser, the green long afterglow of the glass reappears, that is, the long afterglow stimulated by light.

Embodiment 3

[0030] The molar percentage composition of the glass is: 20% barium oxide, 20% boron trioxide, 60% silicon dioxide, 0.3% terbium oxide, 0.05% samarium oxide. After the raw materials are ground and mixed, put them into a crucible, keep the temperature at 1400°C for one hour in a high-temperature furnace, pour into a preheated mold, anneal at 600°C for 3 hours, and cool to room temperature to obtain a colorless and transparent long afterglow glass . After irradiating the glass with UV254nm ultraviolet light for half an hour, the glass emits a bright green long afterglow, and after 9 hours after stopping the excitation, the afterglow of the glass is still visible to the naked eye in the dark. After the afterglow disappears, irradiate the whole piece of glass with long-wave ultraviolet light with a wavelength of 366nm for 30 seconds. After removing the excitation light source, the green long afterglow of the glass reappears, that is, the long afterglow of light excitation.

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

No PUM Login to View More

Abstract

The invention provides a process for preparing rare earth environmental protection long persistence glass comprising the steps of selecting alkaline earth oxide, boron oxide and silicon dioxde as primary hyaline, charging rare earth, grinding and mixing homogeneously, high temperature solid phase reaction, and annealing treatment.

Description

technical field [0001] The invention belongs to the preparation method of rare earth green long afterglow glass. Background technique [0002] The rare earth long afterglow material is an energy-saving low-light lighting and display material. After it is irradiated by sunlight or ultraviolet light, it can store light energy in the material, and then slowly release the energy to emit light. [0003] Traditional long afterglow materials are mainly sulfide systems, such as ZnS: Cu, Co, etc., which have disadvantages such as low afterglow brightness, short afterglow time, poor chemical stability, and easy deliquescence. In order to extend the afterglow time of sulfide, the method of adding radioactive elements is adopted; however, the addition of radioactive elements will cause harm to human health and the environment, so the application of this long afterglow material is greatly limited. In the mid-1990s, a new type of long afterglow material SrAl was discovered in the alkali...

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 Applications(China)
IPC IPC(8): C03C3/068C03C3/095C03C4/00C03C4/12
CPCC03C3/095C03C4/12C03C3/068
Inventor 苏锵赵建军李成宇吕玉华
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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