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Preparation method of red or green long afterglow glass using zinc borate as substrate

A technology of zinc borate and long afterglow, applied in the field of preparation of red and green long afterglow glass, can solve the problems of short afterglow, high power of femtosecond laser, high price, etc., achieve low melting temperature, guaranteed afterglow performance, and reduce construction cost and the effect of production costs

Inactive Publication Date: 2006-06-14
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology irradiates the glass with a femtosecond laser for 10 seconds, removes the femtosecond laser, and the glass has a red afterglow phenomenon, which is visible to the naked eye within 5 minutes, and the afterglow is relatively short; and the power of the femtosecond laser used as an excitation source is huge , expensive and limited to laboratory research

Method used

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  • Preparation method of red or green long afterglow glass using zinc borate as substrate
  • Preparation method of red or green long afterglow glass using zinc borate as substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Each component of this glass composition is weighed by the following mole percentages:

[0015] ZnO: 69.00%; B 2 o 3 : 30.99%;

[0016] MnCO 3 : 0.01%.

[0017] The raw material components accurately weighed according to the composition ratio were finely ground and mixed, and then put into a crucible, and carbon powder was placed in the furnace as a reducing atmosphere, and the temperature was kept at 900°C for 5 hours. After the glass is out of the furnace, it is poured into a stainless steel mold for molding, and then annealed at 500°C for 4 hours in an air atmosphere, and then cooled to room temperature naturally to obtain a colorless and transparent long-lasting glass; after 20 minutes of irradiation with a 254nm ultraviolet lamp, the red afterglow of the glass Up to 12 hours.

Embodiment 2

[0019] Each component of this glass composition is weighed by the following mole percentages:

[0020] ZnO: 69.00%; B 2 o 3 : 30.99%

[0021] MnCO 3 : 0.01%.

[0022] The raw material components accurately weighed according to the composition ratio are finely ground and mixed, and then put into a crucible, and hydrogen gas is introduced into the furnace as a reducing atmosphere, and the temperature is kept at 1500°C for 0.5h. After the glass is out of the furnace, it is poured into a stainless steel mold for molding, and then annealed at 450°C for 5 hours in an air atmosphere, and then cooled to room temperature naturally to obtain a colorless and transparent long-lasting glass; after 20 minutes of irradiation with a 254nm ultraviolet lamp, the red afterglow of the glass Up to 12 hours.

Embodiment 3

[0024] Each component of this glass composition is weighed by the following mole percentages:

[0025] ZnO: 34.00% B 2 o 3 : 65.00%

[0026] MnCO 3 : 0.10% Zn: 0.90%

[0027] The raw material components will be accurately weighed according to the composition ratio, ground and mixed, put into a crucible, and kept at 1400°C for 1 hour in an air atmosphere. After the glass is out of the furnace, it is poured into a stainless steel mold for molding, and then annealed at 500°C for 4 hours in an air atmosphere, and then cooled to room temperature naturally to obtain a colorless and transparent long-lasting glass; after 20 minutes of irradiation with a 254nm ultraviolet lamp, the red afterglow of the glass Up to 12 hours.

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Abstract

The present invention provides a preparation method of red or green long persistence glass by using zinc borate as matrix. Said invention uses zinc oxide and boron oxide as glass matrix, the luminous ion manganese or terbium can be doped in said glass matrix, in the reduction atmosphere or under the air atmosphere in which the reducing agent elementary zinc is added the above-mentioned materials are molten at 900-1500deg.C and constant temperature is retained for 0.5-5hr, so that the invented product can be obtained. After said long persistence luminescent glass is irradiated for 20 min. by 254nm UV lamp, it can produce red long persistence light whose emissive wavelength is 600nm and green long persistence light whose emissive wavelength is 542nm, the persistence time can be respectively up to 12h and 8h.

Description

technical field [0001] The invention relates to a preparation method of red and green long afterglow glass with zinc borate as the glass matrix. technical background [0002] Long afterglow material is a new type of energy material and energy-saving material. The generation of long afterglow is due to the existence of traps with suitable energy levels and depths in the material, which store excitation energy and release it slowly in the form of light according to a certain dynamic law. Utilizing the light storage-luminescence characteristics of long afterglow materials can be widely used in various aspects of production and people's lives. At present, there are three main uses of long afterglow luminescent materials: low-level emergency lighting, indicator marks and decoration and beautification. Most of the long afterglow materials reported at home and abroad are polycrystalline powders, and there are few reports on long afterglow glasses, and they are mainly long aftergl...

Claims

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Application Information

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IPC IPC(8): C03C3/14C03C4/02C03C4/12
Inventor 苏锵廉志红李成宇王静吕玉华陆广琴
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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