CN1580181A - Process for preparing strontium aluminate series luminescence material by self-spreading synthesis method - Google Patents
Process for preparing strontium aluminate series luminescence material by self-spreading synthesis method Download PDFInfo
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- CN1580181A CN1580181A CN 03153374 CN03153374A CN1580181A CN 1580181 A CN1580181 A CN 1580181A CN 03153374 CN03153374 CN 03153374 CN 03153374 A CN03153374 A CN 03153374A CN 1580181 A CN1580181 A CN 1580181A
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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.
Description
Technical field:
The present invention relates to the preparation technology of performance function material, particularly a kind of self-spread synthesizing method prepares the technology of strontium aluminate luminescent material.
Background technology:
The strontium aluminate luminescent material is a kind of type material of compliance with environmental protection requirements.The luminescent material that with the strontium aluminate is matrix is the most successful long afterglow luminescence material of exploitation at present, many advantages such as have that luminosity height, time of persistence are long, heat-resisting, radiation hardness, intensity height and chemical property are stable, thereby be subjected to various countries investigator's attention day by day.The Application Areas of this material is extensive, can be used as products such as Noctilucent ceramics, noctilucence glass, luminous cement, porcelain-imitation luminous paint, artificial luminous marble, phosphorescent coating, luminous GRP.Long after glow luminous material is mixed in the building material product, absorb sunlight daytime, storage power, to night will be sparkling, increase artistic atmosphere for the city night life, can make full use of sun power again simultaneously, save a large amount of electric power resources, have very high economic worth.At present, the preparation method of long afterglow luminescence material adopts high temperature solid-state method more, the subject matter that this method exists has: the synthesis temperature height, need add reducing atmosphere when burning till and the recovery time long, product is long cooling time, gained material hardness is big, expect actual required powder, must carry out ball milling, the luminosity that causes the finished product is not as good as 0.5% of original intensity, consuming time, power consumption and performance are not good, thereby have limited Application Areas and range of application.
Summary of the invention:
Purpose of the present invention is intended to solve the conventional high-temperature solid phase method and prepares the shortcoming that luminescent properties sharply descends after the materials processing that luminescent material itself had, and provide a kind of luminescent material that makes preparation to have than higher after-glow brightness of the luminescent material of conventional high-temperature solid phase method preparation and longer time of persistence, reach that brightness is strong, time of persistence long, "dead" and have excellent weather resistance and a photostabilization, can life-time service under outdoor conditions, the self-spread synthesizing method of compliance with environmental protection requirements prepares the technology of strontium aluminate luminescent material.
The related processing step of technical scheme of realizing the foregoing invention purpose is:
A, with Eu
2O
3, Dy
2O
3, SrCO
3Be mixed with certain density nitrate solution;
B, with this nitrate solution and Al (NO
3)
39H
2O mixes by a certain percentage, adds certain quantity of additive solution and urea again and makes mixed solution;
C, the vessel that this mixed solution will be housed place the medium and small fire heating of electric furnace earlier, treat the total material dissolving after, vessel are added a cover rapid dislocation and are heated in advance in 500～900 ℃ the process furnace and continue heating again, observing response is to generating loose spumescence product;
D, this spumescence product is taken out from process furnace, carry out naturally cooling, to be cooled during to room temperature, the powdered product of dry grinding.
Strontium aluminate (SrAl according to above-mentioned self-spread synthesizing method preparation technology preparation
2O
4, Eu, Dy (M)) and long after glow luminous material, after shining upon, it is moved on to the place that is lower than irradiation brightness, promptly can be observed the green light that this luminescent material sends, twilight sunset can be kept 20 hours.Preparation technology compares with the conventional high-temperature solid reaction process, not only has technological advantages such as quick, energy-conservation, and the goods that prepare with this method also have: easily purchasing out has the matrix that single desirable crystal formation is formed; Make Eu
2+Be uniformly dispersed to greatest extent, improved its activation effect; The product of its preparation has loose, easy machining characteristics; The gas that reaction produces has reductibility, to Eu
2+, Dy
3+Shield, need not additionally to add protective atmosphere; After being processed into the powdered long after glow luminous material, the luminescent properties loss is little; Its product is bigger than the powdery long-afterglow material brightness that high temperature solid-state method makes, time of persistence long, "dead" and have excellent weather resistance and photostabilization, can life-time service under outdoor conditions, be a kind of novel fluorescent material of compliance with environmental protection requirements.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention.
Embodiment:
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
It is as follows that self-spread synthesizing method of the present invention prepares the processing step of strontium aluminate luminescent material:
A, with Eu
2O
3, Dy
2O
3, SrCO
3Be mixed with certain density nitrate solution.
B, with this nitrate solution and Al (NO
3)
39H
2O is respectively the mixed of 0.1-0.15mol% by Al/Sr=1.8-2.1 and 3.6-4.2, Eu and Dy ion add-on, adds certain quantity of additive solution and urea again and makes mixed solution.This additive solution can be boric acid (H
3BO
3), borax, Vanadium Pentoxide in FLAKES, phosphoric acid, its add-on: boric acid (H
3BO
3) or borax be 1-2mol%, Vanadium Pentoxide in FLAKES (P
2O
5) or phosphoric acid be 2-3mol%; The add-on of this urea is the 2.5-3.5W reason.
C, the vessel that this mixed solution will be housed place the medium and small fire heating of electric furnace earlier, after treating the total material dissolving, vessel are added a cover rapid dislocation and are heated in advance and continue heating in 700 ℃ the process furnace again, can be observed a series of variations such as the very fast boiling of solution, exsiccation, burning, there are a large amount of gases to emit simultaneously, generate loose spumescence product, whole process finishes in 3～5min.
D, this spumescence product is taken out from process furnace, carry out naturally cooling, to be cooled during to room temperature, the powdered product of dry grinding 3min.
E, sample detection.
Claims (4)
1, a kind of self-spread synthesizing method prepares the technology of strontium aluminate luminescent material, and this processing step is:
A, with Eu
2O
3, Dy
2O
3, SrCO
3Be mixed with certain density nitrate solution;
B, with this nitrate solution and Al (NO
3)
39H
2O mixes by a certain percentage, adds certain quantity of additive solution and urea again and makes mixed solution;
C, the vessel that this mixed solution will be housed place the medium and small fire heating of electric furnace earlier, treat the total material dissolving after, vessel are added a cover rapid dislocation and are heated in advance in 500～900 ℃ the process furnace and continue heating again, observing response is to generating loose spumescence product;
D, this spumescence product is taken out from process furnace, carry out naturally cooling, to be cooled during to room temperature, the powdered product of dry grinding.
2, self-spread synthesizing method according to claim 1 prepares the technology of strontium aluminate luminescent material, it is characterized in that this nitrate solution and Al (NO
3)
39H
2O is respectively the mixed of 0.1-0.15mol% by Al/Sr=1.8-2.1 and 3.6-4.2, Eu and Dy ion add-on.
3, self-spread synthesizing method according to claim 1 prepares the technology of strontium aluminate luminescent material, it is characterized in that this additive solution can be boric acid (H
3BO
3), borax, Vanadium Pentoxide in FLAKES, phosphoric acid, its add-on: boric acid (H
3BO
3) or borax be 1-2mol%, Vanadium Pentoxide in FLAKES (P
2O
5) or phosphoric acid be 2-3mol%.
4, self-spread synthesizing method according to claim 1 prepares the technology of strontium aluminate luminescent material, and the add-on that it is characterized in that this urea is the 2.5-3.5W reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153374 CN1580181A (en) | 2003-08-12 | 2003-08-12 | Process for preparing strontium aluminate series luminescence material by self-spreading synthesis method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153374 CN1580181A (en) | 2003-08-12 | 2003-08-12 | Process for preparing strontium aluminate series luminescence material by self-spreading synthesis method |
Publications (1)
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|---|---|
| CN1580181A true CN1580181A (en) | 2005-02-16 |
Family
ID=34580030
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363459C (en) * | 2005-03-31 | 2008-01-23 | 中国科学院合肥物质科学研究院 | Red strontium aluminate long afterglow material and its preparation method |
| CN100432184C (en) * | 2005-03-25 | 2008-11-12 | 上海师范大学 | Preparation of visible light -initiated nano superlong-persistence luminescent materials |
| RU2455336C1 (en) * | 2010-12-15 | 2012-07-10 | Государственное образовательное учреждение высшего профессионального образования "Мордовский государственный университет им. Н.П. Огарева" | Method of producing luminophores |
| CN102888220A (en) * | 2012-10-23 | 2013-01-23 | 兰州理工大学 | Preparation method of aluminate luminescent material |
| CN105670615A (en) * | 2016-03-08 | 2016-06-15 | 浙江大学 | Bivalent europium ion-doped strontium aluminate cage type microsphere light-emitting material and preparation method thereof |
| CN108424768A (en) * | 2018-05-02 | 2018-08-21 | 安徽沛隆智能机械科技有限公司 | A kind of environment-friendly type persistence luminous agent applied to plastic toy |
-
2003
- 2003-08-12 CN CN 03153374 patent/CN1580181A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432184C (en) * | 2005-03-25 | 2008-11-12 | 上海师范大学 | Preparation of visible light -initiated nano superlong-persistence luminescent materials |
| CN100363459C (en) * | 2005-03-31 | 2008-01-23 | 中国科学院合肥物质科学研究院 | Red strontium aluminate long afterglow material and its preparation method |
| RU2455336C1 (en) * | 2010-12-15 | 2012-07-10 | Государственное образовательное учреждение высшего профессионального образования "Мордовский государственный университет им. Н.П. Огарева" | Method of producing luminophores |
| CN102888220A (en) * | 2012-10-23 | 2013-01-23 | 兰州理工大学 | Preparation method of aluminate luminescent material |
| CN102888220B (en) * | 2012-10-23 | 2015-04-01 | 兰州理工大学 | Preparation method of aluminate luminescent material |
| CN105670615A (en) * | 2016-03-08 | 2016-06-15 | 浙江大学 | Bivalent europium ion-doped strontium aluminate cage type microsphere light-emitting material and preparation method thereof |
| CN108424768A (en) * | 2018-05-02 | 2018-08-21 | 安徽沛隆智能机械科技有限公司 | A kind of environment-friendly type persistence luminous agent applied to plastic toy |
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