Process for preparing strontium aluminate series luminescence material by self-spreading synthesis method

A technology of luminescent materials and synthesis methods, which can be used in luminescent materials, chemical instruments and methods, etc., and can solve the problems of high hardness of substances, limited application fields and application scope, and poor performance.

CN1580181AInactive Publication Date: 2005-02-16沈毅
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2005-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a kind of high-powered material and the preparation method, especially it is a kind of self gleamy material which spreas of itself to compose department of alumnic acid. the craft follows this, first dispense the amotate liquor of finite concentration using Eu2O3, Dy2O3 and SrCo3, then mix the liquor with Al(NO3) in finite concentration, after add quantitative additive liquor and carbamide to produce compounded liquid, heat up it above the electric fire, later, observe it till loose spumescence outcome appears, cool the outcome maturely in room temperature, porphyrize it thus product is ok. Compared with the traditional art of solid phase reaction in high temperature, the art has many advantages, for example, it saves energy and has long time and brightness of afterlight. Even using it in exterior for long time, it is not ratioactive and environmental.
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Description

Technical field:

[0001] The invention relates to a preparation process of high-performance functional materials, in particular to a process for preparing strontium aluminate luminescent materials by a self-propagating synthesis method. Background technique:

[0002] Strontium aluminate-based luminescent material is a new type of material that meets environmental protection requirements. The luminescent material based on strontium aluminate is the most successful long-lasting photoluminescent material developed so far. It has many advantages such as high luminous brightness, long afterglow time, heat resistance, radiation resistance, high strength and stable chemical properties, so it is increasingly attention of researchers from all over the world. The material has a wide range of applications, and can be used as luminous ceramics, luminous glass, luminous cement, imitation porcelain luminous paint, luminous artificial marble, luminous paint, luminous glass steel and other ...

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Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] The process steps of preparing strontium aluminate-based luminescent materials by the self-propagating synthesis method of the present invention are as follows:

[0013] a. Add Eu 2 o 3 、Dy 2 o 3 , SrCO 3 Prepare a certain concentration of nitrate solution.

[0014] b. Mix the nitrate solution with Al(NO 3 ) 3 9H 2 O is mixed according to the ratio of Al / Sr=1.8-2.1 and 3.6-4.2, Eu and Dy ions are added in a ratio of 0.1-0.15 mol%, and then a certain amount of additive solution and urea are added to make a mixed solution. The additive solution can be boric acid (H 3 BO 3 ), borax, phosphorus pentoxide, phosphoric acid, its addition: boric acid (H 3 BO 3 ) or borax is 1-2mol%, phosphorus pentoxide (P 2 o 5 ) or phosphoric acid is 2-3mol%; the addition of this urea is 2.5-3.5W rationale.

[0015] c. Put the container containing the ...