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

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.

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 ...

AI Technical Summary

Problems solved by technology

At present, the preparation method of long afterglow photoluminescent materials mostly adopts high-temperature solid-phase method. The main problems of this method are: high synthesis temperature, additional reducing atmosphere and long reduction time during firing, long cooling time of the product, and hardness of the obtained material. Large, in order to obtain the actual required powder, ball milling must be carried out, resulting in the luminous brightness of the final product being less than 0.5% of the initial brightness, time-consuming, energy-consuming and poor performance, thus limiting the application field and application range

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