Luminescent material and production method thereof

A technology of luminescent materials and production methods, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of poor physical properties of luminescent glass materials, unfavorable industrial production, complex reaction conditions, etc., and achieve good luminescent properties and physical properties , improve the luminous performance, and the effect of simple preparation process

Inactive Publication Date: 2019-03-22
ZHONGSHAN LVLANG ADDITIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation methods of luminescent glass materials in the prior art often require complex reaction condition control, which is not conducive to industrial production, and the physical properties of the prepared luminescent glass materials are not good, which affects the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The present invention also provides a preparation method of the luminescent material, which specifically includes the following steps:

[0026] (1) Weigh M according to molar parts 2 O, SiO 2 、H 3 BO 3 , CaF 2 、Re 2 o 3 , mixed and ground in a mortar evenly to obtain mixed raw materials;

[0027] (2) Calcining the mixed raw material prepared in the step (1) at 1450°C to 1650°C for 1 to 1.5 hours to form a molten material;

[0028] (3) Pour the molten material in the step (2) into the mold, use water mist to assist to cool down to 400-450°C within 15s, and then slowly cool to room temperature to obtain a solidified body;

[0029] (4) Annealing the cured body prepared in the step (3) at 450-550° C. to obtain the luminescent material.

Embodiment 1

[0032] The following molar fractions of raw materials are used: a is 25, b is 30, c is 30, d is 20, e is 5, f is 20, M is Na, Re is Pm, and the preparation method provided by the above-mentioned invention is used to obtain The structural formula of the luminescent material is: 25Na 2 O 30SiO 2 ·30H 3 BO 3 20CaF 2 5Pm 2 o 3 ·20CaO, excited by ultraviolet light, emits pink light, uniform appearance without warping, flexural strength 127Mpa, rapid heat and rapid cooling without bursting.

Embodiment 2

[0034] Raw materials with the following molar fractions are used: a is 30, b is 35, c is 35, d is 22, e is 8, f is 24, M is Na, Re is Dy, and the preparation method provided by the above-mentioned invention is used to obtain The structural formula of the luminescent material is: 30Na 2 O·35SiO 2 ·35H 3 BO 3 ·22CaF 2 ·8Dy 2 o 3 ·24CaO, excited by ultraviolet light, emits yellow light, uniform in appearance without warping, flexural strength of 125Mpa, no cracking in rapid heating and rapid cooling.

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PUM

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Abstract

The invention relates to a luminescent material and a production method thereof. Part of calcium oxide is replaced with alkali metal oxide, a glass network is effectively enabled to be broken, calciumfluoride crystallization is promoted, and the luminescent property of a product material is improved; by means of control for reasonable reaction conditions and parameters in a preparation process, the luminescent material has good luminescent property and physical performance, the service life is prolonged, furthermore, the preparation process is simple and convenient, special reaction atmosphere is not needed, a reaction can be performed in conventional air atmosphere, and besides, the process is simple, easy to operate and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, in particular to a luminescent material and a production method thereof. Background technique [0002] In traditional light-emitting devices, the light-emitting materials used generally include phosphors, nanocrystals, and glass. At present, low-voltage phosphors are mainly used as luminescent materials. However, phosphors need to be crushed and washed before coating, and necessary heat treatment is required after coating, which leads to a decrease in the luminescent performance of phosphors. The above disadvantages can be avoided when using luminescent glass. Compared with crystals and phosphors, glass is transparent, hard, and has good chemical stability and optical properties; and glass is easier to be processed into products of various sizes and shapes, such as various The shape or size of a display device or lighting source. [0003] Today, rare earth ion-doped glasses play a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/86C03C3/068C03C4/12
CPCC09K11/7712C03C3/068C03C4/12C09K11/774C09K11/7755C09K11/7758C09K11/7764C09K11/778C09K11/7797
Inventor 李陶杰
Owner ZHONGSHAN LVLANG ADDITIVES CO LTD
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