Aluminum silicate luminescent material and preparation method thereof

A technology of luminescent materials and aluminum silicate salts, which is applied in the field of materials, can solve the problems of poor moisture resistance, poor luminous performance, and high requirements for raw material luminescent spectra, and achieve high luminous efficiency, strong absorption and emission capabilities.

Inactive Publication Date: 2016-06-22
SUZHOU JIEDERUI PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The afterglow time of aluminate luminescent materials is long, but it has the disadvantages of poor moisture resistance, high requirements for raw materials and single luminescent spectrum.
Silicate luminescent materials have the advantages of high stability and wide source of raw materials, but their luminescent performance is not as good as that of aluminate luminescent materials. Therefore, further research and improvement of aluminate luminescent materials is the key to the development of long-lasting luminescent materials in the future. an important road

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An aluminum silicate luminescent material, prepared from the following components in parts by weight: 10 parts of ethyl orthosilicate, 20 parts of aluminum nitrate, 20 parts of strontium nitrate, 0.15 parts of europium oxide, 1 part of aluminum hydroxide, Magnesium 1 part, sodium citrate 0.1 part, water glass 7 parts, rosin 1 part, carbonamide 0.2 part, ammonia water 1 part, absolute ethanol 15 parts, nitric acid 1 part, boric acid 10 parts, water 40 parts.

[0024] The preparation method of the above-mentioned aluminum silicate luminescent material is as follows: first mix europium oxide and nitric acid, stir for 5 minutes, then add 10 parts of water, and stir for 10 minutes; mix aluminum nitrate, strontium nitrate, carbonamide, boric acid and the remaining water , stirred for 10 minutes; mixed ethyl orthosilicate and absolute ethanol, stirred for 5 minutes; mixed all components, placed in a water bath, stirred with a stirrer at a temperature of 70 ° C and a speed of 10...

Embodiment 2

[0026] An aluminum silicate luminescent material, prepared from the following components in parts by weight: 12 parts of ethyl orthosilicate, 25 parts of aluminum nitrate, 25 parts of strontium nitrate, 0.2 parts of europium oxide, 1.2 parts of aluminum hydroxide, 1.5 parts of magnesium, 0.15 parts of sodium citrate, 8 parts of water glass, 1.2 parts of rosin, 0.3 parts of carbonamide, 1.5 parts of ammonia water, 16 parts of absolute ethanol, 1.5 parts of nitric acid, 15 parts of boric acid, and 50 parts of water.

[0027] The preparation method of the above-mentioned aluminum silicate luminescent material is as follows: first mix europium oxide and nitric acid, stir for 6 minutes, then add 15 parts of water, and stir for 15 minutes; mix aluminum nitrate, strontium nitrate, carbonamide, boric acid and the remaining water , stirred for 15 minutes; mixed ethyl orthosilicate and absolute ethanol, stirred for 6 minutes; mixed all components, placed in a water bath, stirred with a s...

Embodiment 3

[0029] An aluminum silicate luminescent material, prepared from the following components in parts by weight: 15 parts of ethyl orthosilicate, 30 parts of aluminum nitrate, 30 parts of strontium nitrate, 0.22 parts of europium oxide, 1.5 parts of aluminum hydroxide, 2 parts of magnesium, 0.2 parts of sodium citrate, 10 parts of water glass, 1.5 parts of rosin, 0.35 parts of carbonamide, 2 parts of ammonia water, 17 parts of absolute ethanol, 2 parts of nitric acid, 20 parts of boric acid, and 55 parts of water.

[0030] The preparation method of the above-mentioned aluminum silicate luminescent material is as follows: first mix europium oxide and nitric acid, stir for 7.5 minutes, then add 15 parts of water, and stir for 20 minutes; mix aluminum nitrate, strontium nitrate, carbonamide, boric acid and the remaining water , stirred for 20 minutes; mixed ethyl orthosilicate and absolute ethanol, stirred for 7.5 minutes; mixed all components, placed in a water bath, stirred with a s...

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Abstract

The invention provides an aluminum silicate luminescent material and a preparation method thereof. The aluminum silicate luminescent material is prepared from the following ingredients: ethyl orthosilicate, aluminum nitrate, strontium nitrate, europium oxide, aluminum hydroxide, magnesium hydroxide, sodium citrate, water glass, rosin, carbamide, ammonia water, anhydrous ethanol, nitric acid, boric acid and water. The preparation method of the aluminum silicate luminescent material comprises the following steps: firstly, mixing and stirring the europium oxide and the nitric acid, then, adding part of the water into the mixture, and carrying out stirring; mixing and stirring the aluminum nitrate, the strontium nitrate, the carbamide, the boric acid and the remaining water; mixing and stirring the ethyl orthosilicate and the anhydrous ethanol; mixing all the ingredients, putting the mixture in a water bath, stirring by a stirrer, then, drying in a baking oven so as to obtain gel, and finally firing in a muffle furnace until flame is extinct, thereby obtaining the aluminum silicate luminescent material. The aluminum silicate luminescent material provided by the invention has very high luminous efficiency, and both matrix absorption capability and matrix emission capability are relatively high.

Description

technical field [0001] The invention relates to the field of materials, in particular to an aluminum silicate luminescent material and a preparation method thereof. Background technique [0002] Long afterglow luminescent material Long afterglow material for short, also known as light storage type Luminescent material and luminous material, which is essentially a photoluminescent material . It has a strong absorption capacity and a wide absorption range. The absorbed wavelengths include visible light, ultraviolet rays and infrared rays. At the same time, it also has a strong emission ability. It has a very wide application range and development potential. At present, there are two main types of long-lasting luminescent materials: aluminate materials and silicate bulk materials. Aluminate-based luminescent materials have a long afterglow time, but have disadvantages such as poor moisture resistance, high requirements for raw materials, and a single luminescent spectrum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/64
CPCC09K11/7734
Inventor 姚振红
Owner SUZHOU JIEDERUI PRECISION MACHINERY
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