Luminescent ceramic with high afterglow intensity and preparation method thereof

A technology of luminous ceramics and high strength, which is applied in the field of ceramics, can solve the problems of poor luminous afterglow performance, large loss of luminous intensity, and decreased luminous intensity of luminous ceramic tiles, so as to avoid rain erosion and acid and alkali corrosion, improve service life, reduce The effect of hydrolysis

Active Publication Date: 2020-04-03
FOSHAN OCEANO CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymer materials in the luminescent coating are affected by pollutants in the air, especially acid rain and alkali rain, which will cause chalking, poor appearance quality, and reduced luminous intensity.
The luminescent material in the luminescent glaze is easy to hydrolyze, and the degree of hydrolysis intensifies after heat treatment, resulting in a large loss of luminous intensity
At the same time, there are requirements for the particle size of the luminescent material in the wet glazing process. The smaller the particle size, the more conducive to the stable suspension of the glaze slurry, but the luminescent material with a small particle size is damaged by the grinding process, and the luminous intensity is not high.
Therefore, the afterglow performance of luminous ceramic tiles prepared by wet application of luminous glaze is poor

Method used

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  • Luminescent ceramic with high afterglow intensity and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] A luminescent ceramic with high afterglow intensity. The bottom-up structure of the luminescent ceramic is: a body layer, a surface glaze layer, a bonding layer, a light-emitting layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer The materials are all low-temperature glazes, and the material of the luminescent layer is a mixture of low-temperature glaze and luminescent materials at a ratio of 50:50. The composition and mass percentage of low-temperature glaze are: SiO 2 40%, Al 2 O 3 10%, Fe 2 O 3 0.01%, TiO 2 Is 0.01%, CaO is 8%, K 2 O is 2%, Na 2 O is 2%, B 2 O 3 Is 30%, BaO is 4.98% and Li 2 O is 3%; the mass percentage of each component of the glaze layer material is: SiO 2 60%, Al 2 O 3 25%, Fe 2 O 3 0.2%, TiO 2 0.3%, CaO2.5%, MgO3.0%, K 2 O 2.5%, Na 2 O 3.0%, ZnO0.5% and ZrO 2 3.0%; the luminescent material is SrAl co-doped with rare earth Eu and Dy 2 O 4 And Ca 2 MgSi 2 O 7 Luminescent material.

[0028] A method fo...

Embodiment 2

[0035] A luminescent ceramic with high afterglow intensity. The bottom-up structure of the luminescent ceramic is: a body layer, a surface glaze layer, a bonding layer, a light-emitting layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer The materials are all low-temperature glazes, and the material of the luminescent layer is a mixture of low-temperature glaze and luminescent materials in an 80:20 ratio. The composition and mass percentage of the low-temperature glaze are: SiO 2 41.25%, Al 2 O 3 13.59%, Fe 2 O 3 0.01%, TiO 2 0.02%, CaO is 7.6%, K 2 O is 1.7%, Na 2 O is 2%, B 2 O 3 Is 25%, BaO is 6.46% and Li 2 O is 2.37%; the mass percentage of each component of the glaze layer material is: SiO 2 65%, Al 2 O 3 20%, Fe 2 O 3 0.1%, TiO 2 0.1%, CaO1.5%, MgO 3%, K 2 O 4.5%, Na 2 O2.2%, ZnO 0.1% and ZrO 2 3.5%; the luminescent material is SrAl co-doped with rare earth Eu and Dy 2 O 4 Of luminescent materials.

[0036] A method for pre...

Embodiment 3

[0043] A luminescent ceramic with high afterglow intensity. The bottom-up structure of the luminescent ceramic is: a body layer, a surface glaze layer, a bonding layer, a light-emitting layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer The materials are all low-temperature glazes, and the material of the luminescent layer is a mixture of low-temperature glaze and luminescent materials at a ratio of 70:20. The composition and mass percentage of low-temperature glaze are: SiO 2 47.17%, Al 2 O 3 10.12%, Fe 2 O 3 0.02%, TiO 2 0.01%, CaO 5.54%, K 2 O is 1.27%, Na 2 O is 1.48%, B 2 O 3 27.05%, BaO 4.78% and Li 2 O is 2.56%; the mass percentage of each component of the glaze layer material is: SiO 2 63.3%, Al 2 O 3 21%, Fe 2 O 3 0.2%, TiO 2 0.2%, CaO2.5%, MgO2.0%, K 2 O3.5%、Na 2 O3.8%, ZnO0.5% and ZrO 2 3%; the luminescent material is SrAl co-doped with rare earth Eu and Dy 2 O 4 , Sr 2 MgSi 2 O 7 , CaA1 2 O 4 And Ca 2 MgSi 2 O 7 Of l...

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Abstract

The invention provides luminescent ceramic with high afterglow intensity. The luminescent ceramic structurally comprises a green body layer, a cover glaze layer, a bonding layer, a luminescent layer,a transparent layer and a pattern layer from bottom to top. According to the luminescent ceramic, the bonding layer is added, so the bonding strength of the luminescent layer and the green body is achieved, the transparent layer is added, so the sealing effect on the luminescent layer can be achieved by the transparent layer, the resistance to rainwater erosion and acid-base corrosion is improved,the service life of luminous ceramic tile can be effectively prolonged, and meanwhile, surface stains and stickers can be cleaned conveniently.

Description

Technical field [0001] The present disclosure relates to the technical field of ceramics, in particular to a luminescent ceramic with high afterglow intensity and a preparation method thereof. Background technique [0002] The light-storing energy-saving luminous ceramic tiles can absorb visible light such as sunlight or lights, and store the light energy. When the light excitation stops, the stored energy is slowly released in the form of light, and the duration can be as long as several hours or even More than ten hours. Luminous ceramic tiles have the advantages of long afterglow luminescence, high luminescence brightness, long luminescence time, and no radioactivity. They can not only be used for warning signs for building decoration facilities and safety passages in public places, but also for concealed lighting and low-level emergency lighting. Bring great convenience to people's night life and engineering operations. [0003] At present, there are two main ways to realize ...

Claims

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Application Information

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IPC IPC(8): C04B41/89C03C8/00
CPCC04B41/89C04B41/52C03C8/00C04B41/504C04B41/5022C04B41/5046C04B41/5027C04B41/522C04B41/50
Inventor 马超柯善军田维朱志超周营孙飞野
Owner FOSHAN OCEANO CERAMICS
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