CN101857363A - White light glass and preparation method thereof - Google Patents
White light glass and preparation method thereof Download PDFInfo
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- CN101857363A CN101857363A CN201010205012A CN201010205012A CN101857363A CN 101857363 A CN101857363 A CN 101857363A CN 201010205012 A CN201010205012 A CN 201010205012A CN 201010205012 A CN201010205012 A CN 201010205012A CN 101857363 A CN101857363 A CN 101857363A
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- glass
- white light
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- light glass
- manganese oxide
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Abstract
The invention relates to a white light glass and a preparation method thereof, in particular to a white light glass with tin oxide and manganese oxide as light emitting centers and a preparation method thereof. White light illumination plays an important role in daily production and living, but the existing white light illumination has low efficiency, complicated process and difficult miniaturization. Under the condition, the research on the white light glass is taken seriously because the white light glass has the advantages of simple preparation, high luminous efficiency, easy color temperature regulation and the like. Currently, the researches focus on the white light glass doped with rare earth, but rare earth light emission can generate quenching at high concentration, and the lighting peak position can shift along with the use time so as to cause color temperature change. The white light glass with the tin oxide and the manganese oxide as the light emitting centers can make up the shortcomings. The tin oxide and the manganese oxide belong to network intermediates, can be introduced at high concentration, and have higher luminous intensity and conversion efficiency. Simultaneously, the tin oxide and the manganese oxide adopt wide spectrum lighting, and the compounded white light color temperature basically does not change along with time.
Description
Technical field
The present invention relates to white light material and preparation thereof, especially relate to SnO
2It with MnO white light glass of luminescence center and preparation method thereof.
Background technology
In recent years rice, along with the continuous increase of energy consumption, energy dilemma and environmental pollution are more and more serious.When seeking novel substitute energy, also must aspect energy-saving and emission-reduction, obtain certain breakthrough, this adjusts existing energy consumption structure with regard to necessary, thereby reaches the purpose of energy-saving and emission-reduction.Illumination has been played indispensable effect in the human being's production life, but has also therefore consumed a large amount of energy, so extremely urgent to the improvement of lighting system.For now, incandescent light and luminescent lamp are the main modes of illumination.Since incandescent light be by the heating tungsten filament to incandescent state realize luminous, very most of energy transformation has become heat energy loss, its energy utilization efficiency is extremely low.Luminescent lamp mainly is to cause mercury vapour by electricity to produce ultraviolet ray, then excite inner fluorescent material and realize luminous, its energy utilization efficiency is higher, but its structure and preparation process are comparatively complicated, are difficult to miniaturization, use to be subjected to certain restriction.Eighties of last century is since the nineties, and the research that developing and preparation are used for an illuminating material in fields such as productive life has both at home and abroad had many reports.Wherein photodiode (LED) has received the concern of height, since its luminous efficiency height, compact construction, and preparation has simply obtained a large amount of research.Can realize white light emission at present by the combination of specific LED, and the part commercialization of these products.But because existing LED utilizes rare earth as luminescence center, it is luminous to be line spectrum, and in use emission wavelength can produce skew, thereby the compound white light colour temperature that goes out is changed.Simultaneously, because LED is generally fluorescent material with luminous host, need as thin film deposition on led chip in its encapsulation process, thickness is wayward, thereby the white light irregular colour that causes sending is spared.And its encapsulation process need be used Resins, epoxy, thereby inevitably produces problem of aging.
With stannic oxide (SnO
2) and manganese oxide (MnO) can remedy the shortcoming of above-mentioned white-light illuminating for the white light glass of luminescence center.Stannic oxide and manganese oxide belong to glass network intermediate, can introduce with higher concentration in glass, thereby make glass have higher luminous intensity, have improved photoelectric conversion rate.The luminous of stannic oxide and manganese oxide is wide range, and wavelength shift in use can exert an influence hardly to the colour temperature of white light.Simultaneously, owing to directly use glass, there are not encapsulation back non-uniform light and problem of aging as luminous host.
Summary of the invention
One of purpose of the present invention provides a kind of white light glass that can be used in fields such as productive life illumination, technique of display, replaces present widely used incandescent light, luminescent lamp etc. with part, and it is low that the latter has luminous efficiency, complex structure, shortcoming such as size is bigger.
Two of the object of the invention provides a kind of method for preparing above-mentioned white light glass.
Inventive concept:
Stannic oxide and manganese oxide are the very high wide range luminescence center of luminous efficiency, it is big to have luminous intensity, excite and the transmitted wave length and width, good characteristics such as can in glass, introduce in a large number, in glass, introduce after these two kinds of oxide compounds, can pass through general forming technique, directly prepare illuminator as mold pressing, hot pressing and extrusion technique etc.Compare with traditional incandescent light, luminescent lamp and new LED, have the luminous efficiency height, simple in structure, luminous stable, advantage such as with low cost.
The present invention be a kind of be the white light glass of luminescence center with stannic oxide and manganese oxide, the composition of this system glass relates to the following factor of having taken into account: the formation ability of glass, the high optical transmission of near ultraviolet and visibility region, the colour temperature of compound white light, the intensity of white light.
Technical scheme:
White light glass of the present invention comprises following component and content (content calculates with molar percentage mol%):
P
2O
5：10-90
RO：0-50
SnO
2：0-10
MnO：0-10
R=Ca wherein, Sr, Ba
The method for preparing above-mentioned white light glass comprises the steps:
A) preparation of glass batch
Raw material is made glass batch according to above-mentioned component and content behind thorough mixing.P wherein
2O
5, MnO and RO are respectively with NH
4H
2PO
4, MnCO
3And RCO
3Form is introduced.
B) founding of admixtion:
To place container to melt by the glass batch that step (a) makes, temperature of fusion be 1200-1300 ℃, and fusing time is 1-3 hour.
Pour the glass metal of fusing in mould curing molding.Glass behind the curing molding is moved in the retort furnace, be incubated half an hour, obtain glass specimen after the cooling at 450 ℃.
Wherein: mould therefor preferably is heated to about 450 ℃ in advance, and retort furnace is warming up to about 450 ℃ in advance
C) thermal treatment:
To make glass specimen by step (b) and be reentered into retort furnace, be 350-550 ℃ in temperature, and insulation 3-10 hour promptly obtains fast blink glass of the present invention after the cooling.
White light glass of the present invention is compared with the existing rare-earth white light material of mixing, and then has the fluorescence intensity height, excites and the transmitted wave length and width, and the white light colour temperature is easy to characteristics such as adjusting; Simultaneously, fluorescent glass of the present invention has again that the process of founding is simple, and glass forming ability is strong, and colour temperature is easy to adjust, and the luminescence center ion is introduced the high characteristics of concentration.White light glass of the present invention can be applied to fields such as productive life illumination, technique of display.
Embodiment
Content for a better understanding of the present invention, the invention will be further described below by implementing, but illustrated embodiment does not limit protection scope of the present invention.
Embodiment 1
Formulating of recipe:
Adopt phosphate system.Design of components is as follows:
The glass of table 1 embodiment 1 is formed (mol%)
| ??P 2O 5 | ??SrO | ??SnO 2 | ??MnO |
| ??75 | ??25 | ??1.5 | ??2.0 |
The admixtion preparation:
Adopt high purity (99.9%) primary ammonium phosphate (NH respectively
4H
2PO
4), Strontium carbonate powder (SrCO
3), manganous carbonate (MnCO
3) and stannic oxide for introducing P
2O
5, SrO, MnO and SnO
2Raw material, carry out the preparation of formula calculation and admixtion by the composition shown in the table 1.The admixtion compound method is identical with conventional glass batch compound method.Admixtion needs thorough mixing.
Glass smelting:
The admixtion that mixes is put into corundum crucible, fusion cast glass in electric furnace.Founding atmosphere is air, and temperature of fusion is 1250 ℃, and fusing time is 2 hours, glass is carried out hand mixing 2 times between soak, with fusing and the clear quality of improving glass metal.
Pour natural moulding in the mould of heat-resistance stainless steel into melting good glass metal.Stainless steel mould is heated to 450 ℃ in advance, and the glass specimen after solidifying is moved in the retort furnace.Retort furnace is warming up to 450 ℃ in advance.Insulation half hour time is closed electric furnace in retort furnace, and glass specimen cools to room temperature with the furnace.
Thermal treatment:
Cooled glass specimen is reentered into retort furnace, and Heating temperature is 450 ℃, and soaking time is 6 hours.Insulation after finishing is closed retort furnace, and glass specimen cools to room temperature with the furnace.
Experimental result:
Resulting glass specimen is done the fluorescence property test after cutting, surface grinding, polished finish and chromaticity coordinates calculates.
Test and calculation result see Table 2.
The fluorescence property of table 2 embodiment 1 glass and chromaticity coordinates calculation result
| Excitation wavelength (nm) | Emission wavelength (nm) | Chromaticity coordinates (x, y) |
| ??267 | ??420，606 | ??0.3457，0.2894 |
Embodiment 2-6
In each of the embodiments described below, the preparation method of glass is with embodiment 1, and fluorescence property test and chromaticity coordinates calculation result that the different glass that is adopted is formed are listed in table 3 and table 4. respectively
The glass of table 3 embodiment 2-6 is formed (mol%)
| Sequence number | ??P 2O 5 | ??SrO | ??BaO | ??CaO | ??SnO 2 | ??MnO |
| ??2 | ??70 | ??30 | ??2.0 | ??2.0 | ||
| ??3 | ??65 | ??35 | ??1.0 | ??2.0 | ||
| ??4 | ??75 | ??25 | ??2.5 | ??2.0 |
| Sequence number | ??P 2O 5 | ??SrO | ??BaO | ??CaO | ??SnO 2 | ??MnO |
| ??5 | ??60 | ??40 | ??1.5 | ??1.0 | ||
| ??6 | ??75 | ??25 | ??1.5 | ??4.0 |
The fluorescence property and the density measurement result of table 4 embodiment 2-6 glass
Claims (3)
1. a white light glass is characterized in that, described glass comprises following component and content (content calculates with molar percentage):
P
2O
5：10-90
RO：0-50
SnO
2：0-10
MnO：0-10
R=Ca wherein, Sr, Ba
2. prepare the method for the described glass of claim 1, it is characterized in that, described preparation method comprises the steps:
A) preparation of glass batch
Raw material is made glass batch according to described composition of claim 1 and content behind thorough mixing;
B) admixtion founds
To place corundum crucible to melt by the glass batch that step (a) makes, temperature of fusion is 1200-1300 ℃, fusing time is 1-3 hour, pour the glass metal of fusing in mould curing molding, glass after the moulding is moved on in the retort furnace, about 450 ℃, be incubated half hour, obtain glass specimen after the cooling:
C) thermal treatment
To be reentered into retort furnace by the glass specimen that step (b) makes, be 350-550 ℃ in temperature, is incubated 3-10 hour, obtains white light glass of the present invention after the cooling.
3. preparation method as claimed in claim 2 is characterized in that, wherein mould therefor is preheated to about 450 ℃ in the step (b), and retort furnace is warming up to about 450 ℃ in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010205012A CN101857363A (en) | 2010-06-18 | 2010-06-18 | White light glass and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010205012A CN101857363A (en) | 2010-06-18 | 2010-06-18 | White light glass and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101857363A true CN101857363A (en) | 2010-10-13 |
Family
ID=42943559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010205012A Pending CN101857363A (en) | 2010-06-18 | 2010-06-18 | White light glass and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101857363A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923947A (en) * | 2012-11-06 | 2013-02-13 | 华东理工大学 | Novel white light glass and preparation method thereof |
| CN104108879A (en) * | 2014-07-28 | 2014-10-22 | 武汉工程大学 | Preparation method of luminous glass/microcrystal glass for LED |
| CN105347673A (en) * | 2015-11-23 | 2016-02-24 | 华东理工大学 | Tin-terbium co-doped luminescent glass having excitation wavelength broadened to deep ultraviolet region |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2400147A (en) * | 1942-07-17 | 1946-05-14 | Corning Glass Works | Fluorescent glass composition |
| CN1087883A (en) * | 1992-08-03 | 1994-06-15 | 康宁玻璃公司 | Barium crown sealed glass |
| CN1526673A (en) * | 2003-03-03 | 2004-09-08 | 华东理工大学 | Quick flashing glass and its prepn process |
| US20060052230A1 (en) * | 2004-05-11 | 2006-03-09 | Tokan Material Technology Co., Ltd. | Lead-free low softening point glass |
| CN101602571A (en) * | 2009-07-15 | 2009-12-16 | 华东理工大学 | A kind of scintillation glass and preparation method thereof |
-
2010
- 2010-06-18 CN CN201010205012A patent/CN101857363A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2400147A (en) * | 1942-07-17 | 1946-05-14 | Corning Glass Works | Fluorescent glass composition |
| CN1087883A (en) * | 1992-08-03 | 1994-06-15 | 康宁玻璃公司 | Barium crown sealed glass |
| CN1526673A (en) * | 2003-03-03 | 2004-09-08 | 华东理工大学 | Quick flashing glass and its prepn process |
| US20060052230A1 (en) * | 2004-05-11 | 2006-03-09 | Tokan Material Technology Co., Ltd. | Lead-free low softening point glass |
| CN101602571A (en) * | 2009-07-15 | 2009-12-16 | 华东理工大学 | A kind of scintillation glass and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| CE SHEN等: "Different luminescence behaviors of SnO 2 /Eu 3+ and SnO 2 /Tm 3+ co-doped phosphate glasses", 《CHEMICAL PHYSICS LETTERS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923947A (en) * | 2012-11-06 | 2013-02-13 | 华东理工大学 | Novel white light glass and preparation method thereof |
| CN104108879A (en) * | 2014-07-28 | 2014-10-22 | 武汉工程大学 | Preparation method of luminous glass/microcrystal glass for LED |
| CN104108879B (en) * | 2014-07-28 | 2017-02-15 | 武汉工程大学 | Preparation method of luminous glass/microcrystal glass for LED |
| CN105347673A (en) * | 2015-11-23 | 2016-02-24 | 华东理工大学 | Tin-terbium co-doped luminescent glass having excitation wavelength broadened to deep ultraviolet region |
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Application publication date: 20101013 |