CN1510103A - Spherical fluorescent powder and preparing method thereof - Google Patents
Spherical fluorescent powder and preparing method thereof Download PDFInfo
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- CN1510103A CN1510103A CNA021572097A CN02157209A CN1510103A CN 1510103 A CN1510103 A CN 1510103A CN A021572097 A CNA021572097 A CN A021572097A CN 02157209 A CN02157209 A CN 02157209A CN 1510103 A CN1510103 A CN 1510103A
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- fluorescence powder
- luminous storage
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- 239000000843 powder Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims description 79
- 239000002994 raw material Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 7
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 6
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 6
- 239000012190 activator Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000002243 precursor Substances 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- 229910052693 Europium Inorganic materials 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- -1 alkaline earth metal aluminosilicate Chemical class 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 229910052775 Thulium Inorganic materials 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 230000003081 coactivator Effects 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 7
- 239000010419 fine particle Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 150000004645 aluminates Chemical class 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000941 radioactive substance Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229910016507 CuCo Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005516 deep trap Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000000176 photostabilization Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000010671 solid-state reaction Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A light-accumulating spherical fluorescent powder is prepared from the light-accumulating fluorescent powder through high-temp heating. Its advantages are high luminous intensity, and high durability.
Description
Technical field
The present invention is about spherical luminous storage fluorescence powder powder and manufacture method thereof.
Background technology
Luminous storage fluorescence powder is when being subjected to the irradiate light of daylight or other light source, can accumulate luminous energy, and is in the dark luminous for a long time, can be used for multiple purpose material.
Luminous storage fluorescence powder in the past is a sulfide entirely almost, for example uses ZnS:CuCo or CaS:Co etc.Though this luminous storage fluorescence powder can hold light, luminous, shortcoming is that fluorescent lifetime has only 1～2 hour at most, unstable chemcial property, poor durability is easily aging.So luminous power can sharply descend after tens hours under mal-condition, shortcoming is to use the life-span short.
In addition, after the sulfide luminous storage fluorescence powder adds radioactive substance,, ban use of in the world now though luminous for a long time because use radioactive substance, can produce human body radioactive rays obstacle and contaminate environment.
Having the people to propose with the aluminate of alkaline-earth metal at the nineties initial stage is the luminous storage fluorescence powder powder of main component.This class has the luminous intensity height with rare earth element Eu activated aluminate luminous storage fluorescence powder, and fluorescent lifetime can reach more than 24 hours, advantages such as chemical property is stable, photostabilization is good, long service life.Can be widely used in a lot of places.As luminescent ink, luminescent coating, noctilucence glass printing, coating and various sign and decorated articles and low strength light source etc.
But the manufacture method of the luminous storage fluorescence powder that all are above-mentioned is, made through 1200 ℃ to 1600 ℃ long-time solid state reaction by starting raw material, and resulting product is the lump of ceramic-like often, and this is because α-Al
2O
3Chemically reactive very low, only under sufficiently high temperature, could interact with the compound of other components such as alkaline-earth metal, under action of high temperature, generate the monoclinic form aluminate, and make rare-earth activated dose as Eu
2O
3Deng entering its lattice, form luminescence center and electronics deep trap.For the hard product of such alumina content height, ceramic-like,, just can not obtain tens microns powder of practical application if do not apply powerful pulverization process.But the damage that light-emitting crystal structures produces during owing to pulverizing can absorb excitation energy reduces luminosity, so can not obtain the good particulate powders of luminous intensity.
On the other hand,, during occasions such as noctilucence cloth, require this fine particle to have certain particle luminous storage fluorescence powder being applied to above-mentioned luminescent ink, luminescent coating, luminous plastics, noctilucence glass, and good dispersity.And have good dispersiveness when carrying out rapid classification, preferably use the spheric particle.But the resulting thing of comminuted solids luminous storage fluorescence powder can not carry out good dispersity, narrow particle size distribution, classification fast.
Also have when adding in the synthetic resins luminous storage fluorescence powder to injection molding; fine grain shape has a significant impact the processibility of resin; be the very injection molding machine of quick-wearing synthetic resins of the fine particle that obtains after the luminous storage fluorescence powder pulverization process of high rigidity of main component with the aluminum oxide, use the difficulty that becomes.So wait in expectation on the market a kind of good luminous storage fluorescence powder of post-treatment in the resin that adds to can be arranged.
Summary of the invention
So purpose of the present invention just provides a kind of luminous intensity height, fluorescent lifetime is long, and weather resistance is good, and particle is a spheric, adds the spherical luminous storage fluorescence powder powder that does not also reduce processibility in the synthetic resins to.
Furtherly, other purpose of the present invention provides the extremely simple method of a kind of usefulness and produces the luminous storage fluorescence powder manufacturing method of power with high-quality quality.
The method of dealing with problems
In order to achieve the above object, the present inventor has finished the present invention on the basis of studying assiduously.According to the present invention, luminous storage fluorescence powder powder or luminous storage fluorescence powder synthesis material are obtained spherical luminous storage fluorescence powder powder after by heat.It is compared with pulverizing the resulting powder of luminous storage fluorescence powder solid substance, this sphere luminous storage fluorescence powder powder luminous intensity height, fluorescent lifetime is long, and weather resistance is good, and adds to and do not influence processibility in the synthetic resins fully.
To the effect that of the present invention, be main component with the alkaline earth metal aluminosilicate, transition element such as adding rare earth element is characterized in that as the luminous storage fluorescence powder end of activator this powder is a spherical powder.
Of the present invention another to the effect that, with prior synthetic luminous storage fluorescence powder powder, or behind the synthesis material preparatory response of luminous storage fluorescence powder, resulting luminous storage fluorescence powder precursor powder allows this raw material form the spherical luminous storage fluorescence powder manufacturing method of power of globular by the heating region that exceeds more than the luminous storage fluorescence powder fusing point as raw material.
Of the present invention again one to the effect that, with what form by alkaline-earth metal and aluminosilicate in advance, behind the raw material preparatory response of synthetic luminous storage fluorescence powder, resulting luminous storage fluorescence powder precursor powder allows this raw material form the spherical luminous storage fluorescence powder manufacturing method of power of globular by the heating region that exceeds more than the luminous storage fluorescence powder fusing point as raw material.
Used luminous storage fluorescence powder among the present invention, the fine particle that obtains after can using well-known any one luminous storage fluorescence powder solid substance to pulverize, also can use well-known any one to be main component, add transition metal such as various rare earth elements hold the activator of light and luminous electronic orbit " trap " as generation well-known luminous storage fluorescence powder with alkali earth metal aluminate.
Spheric luminous storage fluorescence powder particulate size of the present invention is relatively good between 0.1～500 μ.Particle diameter can be used as transparent luminous storage material when 1 μ is following, promptly fluorescence dye uses.And for the big particle diameter more than 100 μ, can be considered as luminous storage fluorescence powder and use.When being used for the purposes such as dyestuff of offset printing luminescent ink, used in copy machines fluorescence toning agent, fiber printing and dyeing usefulness, preferably use the following thing of 3 μ.
Above-mentioned well-known luminous storage fluorescence powder by its powder is made the spheric fine particle, can improve the luminescent properties of luminous storage fluorescence powder, and workability and operability when also having improved materials such as adding synthetic resins and printing-ink to.
The manufacturing raw material of the spherical luminous storage fluorescence powder manufacture method among the present invention, it both can be the luminous storage fluorescence powder fine particle that obtains after prior synthetic luminous storage fluorescence powder solid substance is pulverized, the component raw material that also can be several necessity of luminous storage fluorescence powder is mixed, and behind the preparatory response, make the preceding precursor powder of luminous storage fluorescence powder sintering.
With top this raw material, by exceeding this heating region more than solid fusing point, the fusing back forms the spheric powder.Exceed the plasma area that the above heating region of fusing point is meant that the method for being generally acknowledged by non-parallel-moving type and parallel-moving type direct current plasma flame, ratio-frequency heating plasma body, electric-arc heating, gas burner etc. produces.
According to the composition of luminous storage fluorescence powder, heating atmosphere is adjusted into reducing atmosphere, oxidizing atmosphere or inert atmosphere, and selects solid fusing point above heating means and heated air thus.For example, can in air plasma flame, heat for the luminous storage fluorescence powder that is fit to have oxidizing atmosphere.For the luminous storage fluorescence powder that must under reducing atmosphere, carry out, the mixed gas that can use rare gas elementes such as hydrogen or argon gas and hydrogen is as plasma gas, and the carrier gases that contains reducing gass such as the raw material of making luminous storage fluorescence powder and hydrogen is blown in the plasma flame of rare gas elementes such as argon gas simultaneously.
The method of charging feed powder in the heating region more than exceeding fusing point, can raw material powder be arranged with aforesaid in carrier gases, flowing, and it is blown in the plasma flame, both hybrid-type methods, be mixed with the raw material fine particle in the plasma carrier gases being used in, and produce in the well-known plasma powder heating method such as parallel-moving type plasma method any one.
As the light storing phosphor of the luminous storage fluorescence powder of the spherical particle shape among the present invention, though any luminous storage fluorescence powder known today can utilize, use that following general expression expresses by Eu activated alkaline earth metal aluminosilicate better effects if.
(A
1-z-yD
xE
y)O·a(G
1-zH
z)
2O
3
One or more the element of A for from alkaline-earth metal Mg, Ca, Sr, Ba and divalent Metal Zn, choosing in the formula, D is activator Eu, E is one or more the element of choosing among coactivator rare earth element Dy, Nd, Pr, Ho, Er, Tm, Yb, Lu and transition element Ni, Mn, Zr, Nb, Ti, Sb, Li, Ge, In, the W, O is an oxygen, G is more than one the element of choosing among female xln Al and the Si, and H is more than one the element of choosing among female xln B and the Ga;
And the scope of x, y, z, a is
0.01≤x≤0.5???????????????0.0001≤y≤0.3
0.0001≤z≤0.5?????????????1.5≤a≤3.0
With α-Al
2O
3As the parent material in component Al source, with SrCO
3As the starting raw material in component Sr source, with SiO
2As the parent material in component Si source, with CaCO
3As the parent material in component C a source, with the parent material of MgO, with NiCO as component Mg source
3As the parent material in component Ni source, with Eu
2O
3And Dy
2O
3Starting raw material as corresponding Eu, Dy source; The mole proportioning of various materials is as follows:
SrCO
3∶Al
2O
3＝1∶0.1～1.5
MgO∶SiO
2＝1∶0.8～2.0
CaCO
3∶SiO
2＝1∶0.5～2.0
Eu
2O
3∶Dy
2O
3＝1∶1.5～3
SrCO
3∶Eu
2O
3＝1∶0.001～0.02
SrCO
3∶SiO
2＝1∶0.1～2
SrCO
3∶NiCO
3＝1∶0.001～0.1
The effect of invention
Pass through said process, the spherical aluminosilicate luminous storage fluorescence powder that makes according to the present invention, secondary processing operation when adding in synthetic resins, coating, the glass etc. when having exempted the pulverizing process that destroys ray structure and having made molding, the luminous intensity height, fluorescent lifetime is long, water tolerance is good, and moment directly forms spherical luminous storage fluorescence powder.
Description of drawings
Fig. 1 is the luminescent spectrum of the spherical aluminosilicate luminous storage fluorescence powder that made by the present invention and the graph of a relation of relative intensity.
Fig. 2 is the spherical aluminosilicate luminous storage fluorescence powder that made by the present invention and former product glorious degrees and the comparison figure of time of persistence.
Fig. 3 is the comparison diagram of the size-grade distribution of the spherical aluminosilicate luminous storage fluorescence powder that made by the present invention and former product.
Fig. 4 is the spherical aluminosilicate luminous storage fluorescence powder recovery system synoptic diagram among the present invention.
Embodiment
Embodiment 1
Press shown in the table 1, accurately take by weighing Al
2O
3, SrCO
3, SiO
2, NiCO
3, Eu
2O
3, Dy
2O
3And H
3BO
3Behind the thorough mixing in the electric furnace of 1000 ℃ or 1100 ℃ hot setting, resulting sinter is ground into the presoma that obtains luminescent powder behind the powder, with this luminous storage fluorescence powder presoma under the plasma atmosphere about 1800 ℃, spray in retrieving arrangement, moment is synthetic.Make by Eu, Dy activated, luminescent spectrum is 420～440nm, blue look luminous aluminosilicate luminous storage fluorescence powder.
The blue look luminescent ligand ratio of table 1
| ????Al 2O 3 | ????10.5g |
| ????SrCO 3 | ????77.1g |
| ????MgO | ????12.0g |
| ????Eu 2O 3 | ????1.8g |
| ????Dy 2O 3 | ????2.3g |
| ????SiO 2 | ????45.3g |
| ????NiCO 3 | ????0.5g |
| ????H 3BO 3 | ????4.1g |
Embodiment 2
By accurately taking by weighing Al shown in the table 2
2O
3, CaCO
3, SrCO
3, SiO
2, NiCO
3, Eu
2O
3, Dy
2O
3And H
3BO
3Behind the thorough mixing in the electric furnace of 1000 ℃ or 1100 ℃ hot setting, resulting sinter is ground into the presoma that obtains luminescent powder behind the powder, with this luminous storage fluorescence powder presoma under the plasma atmosphere about 1800 ℃, spray in retrieving arrangement, moment is synthetic.Make by Eu, Dy activated, luminescent spectrum is 500～520nm, green emitting aluminosilicate luminous storage fluorescence powder.
Table 2 green emitting proportioning
| ????Al 2O 3 | ????8.7g |
| ????CaCO 3 | ????49.5g |
| ????SrCO 3 | ????15.1g |
| ????Eu 2O 3 | ????1.6g |
| ????Dy 2O 3 | ????2.0g |
| ????SiO 2 | ????30.3g |
| ????NiCO 3 | ????0.4g |
| ????H 3BO 3 | ????3.3g |
Claims (8)
1, a kind of is main component with the alkaline earth metal aluminosilicate, and transition element such as adding rare earth element is characterized in that as the luminous storage fluorescence powder end of activator this powder is a spherical powder.
2, spherical luminous storage fluorescence powder according to claim 1 end is characterized in that spherical luminous storage fluorescence powder end particle diameter is between 0.1～500 μ.
3, spherical luminous storage fluorescence powder according to claim 1 and 2 end is characterized in that the general expression that spherical luminous storage fluorescence powder is formed can be expressed as
(A
1-z-yD
xE
y)O·a(G
1-zH
z)
2O
3
One or more the element of A for from alkaline-earth metal Mg, Ca, Sr, Ba and divalent Metal Zn, choosing in the formula, D is activator Eu, E is one or more the element of choosing among coactivator rare earth element Dy, Nd, Pr, Ho, Er, Tm, Yb, Lu and transition element Ni, Mn, Zr, Nb, Ti, Sb, Li, Ge, In, the W, O is an oxygen, G is more than one the element of choosing among female xln Al and the Si, and H is more than one the element of choosing among female xln B and the Ga; And the scope of x, y, z, a is
0.01≤x≤0.5??????????????0.0001≤y≤0.3
0.0001≤z≤0.5????????????1.5≤a≤3.0
4, spherical luminous storage fluorescence powder according to claim 3 end is characterized in that with α-Al
2O
3As the parent material in component Al source, with SrCO
3As the starting raw material in component Sr source, with SiO
2As the parent material in component Si source, with CaCO
3As the parent material in component C a source, with the parent material of MgO, with NiCO as component Mg source
3As the parent material in component Ni source, with Eu
2O
3And Dy
2O
3Starting raw material as corresponding Eu, Dy source; The mole proportioning of various materials is as follows:
SrCO
3∶Al
2O
3＝1∶0.1～1.5
MgO∶SiO
2＝1∶0.8～2.0
CaCO
3∶SiO
2＝1∶0.5～2.0
Eu
2O
3∶Dy
2O
3＝1∶1.5～3
SrCO
3∶Eu
2O
3＝1∶0.001～0.02
SrCO
3∶SiO
2＝1∶0.1～2
SrCO
3∶NiCO
3＝1∶0.001～0.1
5, the manufacture method at a kind of spherical luminous storage fluorescence powder end, it is characterized in that prior synthetic luminous storage fluorescence powder powder, or behind the synthesis material preparatory response of luminous storage fluorescence powder, resulting luminous storage fluorescence powder precursor powder allows this raw material form the spherical luminous storage fluorescence powder powder of globular by the heating region that exceeds more than the luminous storage fluorescence powder fusing point as raw material.
6, a kind of preparation method of spherical luminous storage fluorescence powder, it is characterized in that what the general be made up of alkaline-earth metal and aluminosilicate in advance, behind the raw material preparatory response of synthetic luminous storage fluorescence powder, resulting luminous storage fluorescence powder precursor powder allows this raw material form the spherical luminous storage fluorescence powder powder of globular by the heating region that exceeds more than the luminous storage fluorescence powder fusing point as raw material.
7, according to the manufacture method at claim 5 or 6 described spherical luminous storage fluorescence powder ends, it is characterized in that exceeding the above heating region of luminous storage fluorescence powder fusing point is plasma area.
8, the manufacture method at spherical luminous storage fluorescence powder according to claim 7 end is characterized in that plasma area is the plasma area that is produced by the direct current plasma flame of non-parallel-moving type and parallel-moving type, ratio-frequency heating plasma body, electric-arc heating etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157209 CN1242021C (en) | 2002-12-23 | 2002-12-23 | Spherical fluorescent powder and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157209 CN1242021C (en) | 2002-12-23 | 2002-12-23 | Spherical fluorescent powder and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510103A true CN1510103A (en) | 2004-07-07 |
| CN1242021C CN1242021C (en) | 2006-02-15 |
Family
ID=34236514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157209 Expired - Fee Related CN1242021C (en) | 2002-12-23 | 2002-12-23 | Spherical fluorescent powder and preparing method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1242021C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925147A (en) * | 2012-10-29 | 2013-02-13 | 江苏博睿光电有限公司 | Superfine particle size high-luminous-efficiency blue-green long-afterglow fluorescent powder and preparation method thereof |
| CN105670603A (en) * | 2014-11-20 | 2016-06-15 | 中国科学院化学研究所 | Efficient light-emitting microsphere and preparation method and application thereof |
| CN113651531A (en) * | 2021-09-22 | 2021-11-16 | 烟台希尔德材料科技有限公司 | Second phase glass reinforced phosphor compound and preparation method and composition thereof |
-
2002
- 2002-12-23 CN CN 02157209 patent/CN1242021C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925147A (en) * | 2012-10-29 | 2013-02-13 | 江苏博睿光电有限公司 | Superfine particle size high-luminous-efficiency blue-green long-afterglow fluorescent powder and preparation method thereof |
| CN102925147B (en) * | 2012-10-29 | 2014-12-17 | 江苏博睿光电有限公司 | Superfine particle size high-luminous-efficiency blue-green long-afterglow fluorescent powder and preparation method thereof |
| CN105670603A (en) * | 2014-11-20 | 2016-06-15 | 中国科学院化学研究所 | Efficient light-emitting microsphere and preparation method and application thereof |
| CN105670603B (en) * | 2014-11-20 | 2018-01-02 | 中国科学院化学研究所 | A kind of High Efficiency Luminescence microballoon and its preparation method and application |
| CN113651531A (en) * | 2021-09-22 | 2021-11-16 | 烟台希尔德材料科技有限公司 | Second phase glass reinforced phosphor compound and preparation method and composition thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1242021C (en) | 2006-02-15 |
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