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Luminescent ceramic with high afterglow intensity and preparation method thereof

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

Active Publication Date: 2022-07-22
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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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 luminescent layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer are The materials are all low-temperature glazes, and the material of the light-emitting layer is a mixture of low-temperature glaze and light-emitting materials in a ratio of 50:50. The components and mass percentages of the low-temperature glaze are: SiO 2 40%, Al 2 O 3 10%, Fe 2 O 3 0.01%, TiO 2 0.01%, CaO 8%, K 2 O is 2%, Na 2 O is 2%, B 2 O 3 30%, BaO 4.98% and Li 2 O is 3%; the mass percentage of each component of the material of the surface glaze layer 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%, ZnO 0.5% 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 ...

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 luminescent layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer are The materials are all low-temperature glazes, and the material of the light-emitting layer is a mixture of low-temperature glaze and light-emitting material in a ratio of 80:20. The components and mass percentages of 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 7.6%, K 2 O is 1.7%, Na 2 O is 2%, B 2 O 3 25%, BaO 6.46% and Li 2 O is 2.37%; the mass percentage of each component of the material of the surface glaze layer is: SiO 2 65%, Al 2 O 3 20%, Fe 2 O 3 0.1%, TiO 2 0.1%, CaO 1.5%, 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 luminescent mate...

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 luminescent layer, a transparent layer and a pattern layer, wherein the bonding layer and the transparent layer are The materials are all low-temperature glazes, and the material of the light-emitting layer is a mixture of low-temperature glaze and light-emitting material in a ratio of 70:20. The components and mass percentages 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 material of the surface glaze layer 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 Mg...

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Abstract

The present disclosure provides 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 luminescent layer, a transparent layer and a pattern layer. The luminescent ceramic is added with a bonding layer to achieve the bonding strength between the luminescent layer and the green body, and a transparent layer is also added. Corrosion resistance, which can effectively increase the service life of luminous ceramic tiles, and also facilitate the cleaning of surface stains and adhesions.

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] Light-storing and energy-saving luminescent 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, which can last for several hours or even ten hours. Luminous ceramic tiles, due to their advantages of long afterglow, high luminous brightness, long luminous time, and no radioactivity, can not only be used for building decoration facilities, warning signs of safety passages in public places, but also for concealed lighting and low-level emergency lighting. It brings great convenience to people's night life and engineering operations. [0003] At present, there are two main ways to realize the light-storage and energy-saving f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B18/00
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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