CN102337117A - Surface processing method of aluminate blue fluorescent powder for lamp - Google Patents
Surface processing method of aluminate blue fluorescent powder for lamp Download PDFInfo
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- CN102337117A CN102337117A CN2011102058018A CN201110205801A CN102337117A CN 102337117 A CN102337117 A CN 102337117A CN 2011102058018 A CN2011102058018 A CN 2011102058018A CN 201110205801 A CN201110205801 A CN 201110205801A CN 102337117 A CN102337117 A CN 102337117A
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- powder
- blue fluorescent
- fluorescent powder
- aluminate blue
- surface treatment
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- 239000000843 powder Substances 0.000 title claims abstract description 179
- 150000004645 aluminates Chemical class 0.000 title claims abstract description 90
- 238000003672 processing method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 230000018044 dehydration Effects 0.000 claims abstract description 11
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000011149 active material Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 238000000498 ball milling Methods 0.000 claims description 53
- 238000004381 surface treatment Methods 0.000 claims description 53
- 239000011805 ball Substances 0.000 claims description 32
- 238000005303 weighing Methods 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 5
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- DXNVUKXMTZHOTP-UHFFFAOYSA-N dialuminum;dimagnesium;barium(2+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Mg+2].[Al+3].[Al+3].[Ba+2].[Ba+2] DXNVUKXMTZHOTP-UHFFFAOYSA-N 0.000 claims description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000007873 sieving Methods 0.000 abstract 2
- 229910003158 γ-Al2O3 Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 16
- 238000012216 screening Methods 0.000 description 8
- 238000009775 high-speed stirring Methods 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Luminescent Compositions (AREA)
Abstract
The invention discloses a surface processing method of aluminate blue fluorescent powder for a lamp, which comprises the following steps of: (1) preparation and processing a surface active material, i.e. preparing gamma-Al2O3 surface processing active solution with the mass percentage of 5 to 20 percent; and (2) implementing a process of processing the surface of the aluminate blue fluorescent powder, i.e. stirring slurry of the aluminate blue fluorescent powder, adding the gamma-Al2O3 surface processing active solution prepared in the step (1), uniformly stirring the mixture, sieving the uniformly stirred slurry through 350 meshes, and carrying out dehydration, drying and sieving to obtain the aluminate blue fluorescent powder subjected to surface processing. Due to the adoption of the method disclosed by the invention, the powder dispersibility is changed, the surface electrical property of the powder is changed, and the condition of damage to the surface of the powder is improved. In the invention, a unique surface active material formula and a surface processing method are adopted; and the aluminate blue fluorescent powder for the lamp, which has excellent liquidity, coating property, dispersibility and luminescent property, is prepared by reasonably regulation.
Description
Technical field
The present invention relates to the surface treatment method of a kind of lamp with aluminate blue fluorescent powder.
Background technology
20 end of the centurys, people to the demand of electricity-saving lamp more and more widely from the energy-conservation angle of illumination.With trichromatic energy saving lamp powder is that the electricity-saving lamp of material is widely used, and still, the deficiency of this electricity-saving lamp slowly displays, and light efficiency is on the low side, light decay is bigger, and people improve high lighting effect energy-saving lamp powder attention rate day by day.The trichromatic energy saving lamp is BaMgAl with the chemical general formula of barium magnesium aluminate europium blue colour fluorescent powder
10O
17: Eu.Because high temperature solid phase synthesis equipment is simple, process stabilizing, product have consistence preferably, are more suitable for carrying out scale operation, so present commercially available aluminate blue powder still adopts high temperature solid phase synthesis.Because of aluminate blue powder prepares process through high-temperature roasting, form crystalline structure preferably, better heat stability occupies electricity-saving lamp with the main status of blue powder.Because powder surface characteristic; The powder of handling well can occur reuniting and adhesion, and behind the system lamp along with the prolongation of burning time, the burst of ultraviolel light source also can damage aluminate blue powder crystalline surface tissue; Cause the light efficiency decay of electricity-saving lamp, having a strong impact on the work-ing life of lamp.
Summary of the invention
The purpose of this invention is to provide the surface treatment method of a kind of lamp with aluminate blue fluorescent powder; Through coating the layer of surface active material at phosphor surface; Change the surface property of fluorescent material, reach the reunion and the adhesion that reduce between the fluorescent material powder, reduce the damage of excitation light source glass-tube coating inner surface fluorescent powder; Thereby reduce fluorescent material light decay in use, improve lux maintenance.
For reaching above purpose, the present invention adopts following technical scheme:
A kind of lamp may further comprise the steps with the surface treatment method of aluminate blue fluorescent powder:
(1) preparation of surface active material and processing:
γ-Al after at first will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball and carry out getting γ-Al behind the ball milling
2O
3Solution; With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution; With the γ-Al that crosses 600 mesh sieves
2O
3γ-Al in the solution
2O
3Mass percent concentration be adjusted into 5-20% and stir, promptly get γ-Al
2O
3The surface treatment living solution;
(2) enforcement of aluminate blue fluorescent powder surface treatment process:
Take by weighing aluminate blue fluorescent powder, with crossing 350 eye mesh screens after its powder pulp, the powder pulp-water that removes behind the screening reject is washed; With getting rid of powder slurry upper water solution behind the slurry of the powder after the washing standing sedimentation, stirring also adds the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.05-0.5 ‰ that takes by weighing
2O
3The surface treatment living solution, 350 mesh sieves are crossed in the back that stirs, dehydration, dry, sieve, promptly obtain the surface treatment aluminate blue fluorescent powder.
In the step (1) during ball milling, γ-Al
2O
3Powder: ball milling ball: the mass ratio of water is 1: 2: 2.
Said ball milling ball is the agate ball of Φ 0.5-1.5mm.
In the step (2) powder that stirs was starched 350 mesh sieves and dehydration back drying under 110-120 ℃.
Dry back powder sieves to crossing 160 mesh sieves in the step (2).
γ-the Al that adds in the step (2)
2O
3The mass percent concentration of surface treatment living solution is 20%; γ-the Al that adds
2O
3The surface treatment living solution accounts for 0.05 ‰, 0.10 ‰, 0.15 ‰, 0.20 ‰, 0.25 ‰ or 0.30 ‰ of the aluminate blue fluorescent powder quality that takes by weighing.
The ball milling time is 12-48 hour in the step (1).
Aluminate blue fluorescent powder is a barium magnesium aluminate europium blue colour fluorescent powder described in step (1), (2), and its chemical general formula is BaMgAl
10O
17: Eu.
The aluminate blue fluorescent powder that adds during ball milling in the step (1) is γ-Al in the ball milling bottle
2O
3The 0-5 ‰ of powder quality.
The number of times of washing is 2-4 time in the step (2).
Advantage of the present invention is:
(1), change powder dispersity: because aluminate material self and burn till and handle back powder self-characteristic, adhesion and agglomeration are serious between powder granule, through surface treatment, can improve above problem, and the dispersiveness of fluorescent material is greatly taken on a new look;
(2), it is electrical to change powder surface: it is comparatively fragile that aluminate blue powder burns till back powder crystal, and when powder was dismissed, intensity can not be strong excessively; Otherwise can destroy the crystallo-luminescence center; Because powder surface is had electrically, therefore in the powder coating process, can be because of charged and powder granule is condensed mutually; Occur applying irregular phenomenon, through can effectively addressing this problem after the surface treatment;
(3), improve the powder surface degree of impairment: the internal surface of fluorescent coating is in when lighting a lamp under the radiation of UV-light for a long time in the glass-tube, and the surface crystal structure is destroyed gradually.The damage of perfection of crystal directly causes the deterioration of powder luminescent properties, problems such as light efficiency reduction, light decay increase occur, reduces the work-ing life of fluorescent tube.Through surface treatment, coat layer protective layer at the fluorescent material powder surface, do not influencing under the fluorescent material powder characteristic condition, weaken or avoided exciting the damaging action of UV-light powder, effectively alleviate the bad change of fluorescent material, improve the use properties of fluorescent material.
The present invention adopts unique surface active material prescription and surface treatment method, has made the good lamp of flowability, screening characteristics, dispersiveness and luminescent properties through adjustment rationally and has used aluminate blue fluorescent powder.
Embodiment
Embodiment 1:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the mass ratio of water is 1: 2: 2, and the ball milling time is 48 hours.Disperseing ball here is the agate ball of Φ 0.5-1.5mm; The add-on of aluminate blue fluorescent powder is γ-Al in the ball milling bottle
2O
31 ‰ of powder quality.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 5% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 5% with concentration
2O
3The surface treatment living solution is by 0.05 ‰ adding of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder after the pulp of aluminate blue fluorescent powder powder is starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.05 ‰ that takes by weighing
2O
3Surfactivity solution continues to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.6, σ ln 0.38.
Embodiment 2:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the ratio of water is 1: 2: 2, and the ball milling time is 12 hours.Disperseing ball here is the agate ball of Φ 0.5-1.5mm; The add-on of aluminate blue fluorescent powder is γ-Al in the ball milling bottle
2O
32 ‰ of powder quality.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 20% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 20% with concentration
2O
3The surface treatment living solution is by 0.1 ‰ addings of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder after the pulp of aluminate blue fluorescent powder powder is starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.1 ‰ that takes by weighing
2O
3Surfactivity solution continues to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.4, σ ln 0.35.
Embodiment 3:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the ratio of water is 1: 2: 2, and the ball milling time is 36 hours.Disperseing ball here is the agate ball of Φ 0.5-1.5mm; The add-on of aluminate blue fluorescent powder is γ-Al in the ball milling bottle
2O
33 ‰ of powder quality.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 10% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 10% with concentration
2O
3The surface treatment living solution is by 0.15 ‰ adding of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder after the pulp of aluminate blue fluorescent powder powder is starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.15 ‰ that takes by weighing
2O
3Surfactivity solution continues to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.5, σ ln 0.32.
Embodiment 4:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the ratio of water is 1: 2: 2, and the ball milling time is 24 hours.Require to disperse ball is the agate ball of Φ 0.5-1.5mm here; The add-on of aluminate blue fluorescent powder is γ-Al in the ball milling bottle
2O
35 ‰ of powder quality.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 15% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 15% with concentration
2O
3The surface treatment living solution is by 0.20 ‰ adding of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder after the pulp of aluminate blue fluorescent powder powder is starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.20 ‰ that takes by weighing
2O
3Surfactivity solution continues to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.6, σ ln 0.30.
Embodiment 5:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add aluminate blue fluorescent powder, water and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the ratio of water is 1: 2: 2, and the ball milling time is 48 hours.Require to disperse ball is the agate ball of Φ 0.5-1.5mm here; The add-on of aluminate blue fluorescent powder is γ-Al in the ball milling bottle
2O
32.5 ‰ of powder quality.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 20% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 20% with concentration
2O
3The surface treatment living solution is by 0.35 ‰ adding of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder after the pulp of aluminate blue fluorescent powder powder is starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the tensio-active agent that accounts for the aluminate blue fluorescent powder quality 0.35 ‰ that takes by weighing, continue to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.7, σ ln0.31.
Embodiment 6:
A kind of lamp is with the surface treatment method of aluminate blue fluorescent powder, and the practical implementation step is:
(1) γ-Al after will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, add entry and ball milling ball, guarantee γ-Al
2O
3Powder: ball: the ratio of water is 1: 2: 2, and the ball milling time is 36 hours.Require to disperse ball is the agate ball of Φ 0.5-1.5mm here.With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves, removes screen overflow and keeps γ-Al
2O
3Solution.With γ-Al
2O
3The solution quality percentage concentration is adjusted into 20% and under the high-speed stirring condition, stirred 12-24 hour, promptly gets qualified γ-Al
2O
3The surface treatment living solution.
(2) taking by weighing aluminate blue fluorescent powder, is γ-Al of 20% with concentration
2O
3Face is handled living solution, by 0.50 ‰ adding of the aluminate blue fluorescent powder quality that takes by weighing.Before the surfactant treatment, the powder of getting after the pulp of a certain amount of aluminate blue fluorescent powder powder was starched 350 eye mesh screens, removed screening reject, obtained qualified powder slurry.The powder pulp-water is washed the back standing sedimentation 2-4 time, get rid of upper water solution, and in whipping process, add the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.50 ‰ that takes by weighing
2O
3Surfactivity solution continues to stir 2.0 hours.The powder that stirs was starched 350 mesh sieves, and powder slurry dehydration back is dry under 110-120 ℃, and dried powder is crossed 160 eye mesh screens and promptly got the surface treatment aluminate blue fluorescent powder.This fluorescent material brightness 102.5, σ ln 0.33.
The aluminate blue fluorescent powder that uses in the inventive method is BaMgAl
10O
17: Eu; The aluminate blue fluorescent powder that adds trace during ball milling, γ-Al in ball milling bottle when it accounts for ball milling
2O
3The 0-5 ‰ of quality.
Claims (10)
1. a lamp is characterized in that with the surface treatment method of aluminate blue fluorescent powder, may further comprise the steps:
(1) preparation of surface active material and processing:
γ-Al after at first will cleaning
2O
3Cross 350 eye mesh screens, remove impurity, in the ball milling bottle of packing into after the screen underflow weighing, and in the ball milling bottle, add aluminate blue fluorescent powder, water and ball milling ball carry out behind the ball milling γ-Al
2O
3Solution; With the γ-Al behind the ball milling
2O
3Solution is crossed 600 mesh sieves; With the γ-Al that crosses 600 mesh sieves
2O
3The solution quality percentage concentration is adjusted into 5-20% and stirs, and promptly gets γ-Al
2O
3The surface treatment living solution;
(2) enforcement of aluminate blue fluorescent powder surface treatment process:
Take by weighing aluminate blue fluorescent powder, with crossing 350 eye mesh screens and washing after its powder pulp; With getting rid of powder slurry upper water solution behind the slurry of the powder after the washing standing sedimentation, stirring also adds the γ-Al that accounts for the aluminate blue fluorescent powder quality 0.05-0.5 ‰ that takes by weighing
2O
3The surface treatment living solution, 350 mesh sieves are crossed in the back that stirs, dehydration, dry, sieve, promptly obtain the surface treatment aluminate blue fluorescent powder.
2. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder, in the step (1) during ball milling, and γ-Al
2O
3Powder: ball milling ball: the mass ratio of water is 1: 2: 2.
3. lamp as claimed in claim 2 is characterized in that with the surface treatment method of aluminate blue fluorescent powder said ball milling ball is the agate ball of Φ 0.5-1.5mm.
4. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder, in the step (2) powder that stirs is starched 350 mesh sieves and dehydration back drying under 110-120 ℃.
5. lamp as claimed in claim 4 is characterized in that with the surface treatment method of aluminate blue fluorescent powder dry back powder sieves to crossing 160 mesh sieves in the step (2).
6. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder, the γ-Al that adds in the step (2)
2O
3The mass percent concentration of surface treatment living solution is 20%; γ-the Al that adds
2O
3The surface treatment living solution accounts for 0.05 ‰, 0.10 ‰, 0.15 ‰, 0.20 ‰, 0.25 ‰ or 0.30 ‰ of the aluminate blue fluorescent powder quality that takes by weighing.
7. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder the ball milling time is 12-48 hour in the step (1).
8. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder aluminate blue fluorescent powder is a barium magnesium aluminate europium blue colour fluorescent powder described in step (1), (2), and its chemical general formula is BaMgAl
10O
17: Eu.
9. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder, and the aluminate blue fluorescent powder that adds during ball milling in the step (1) is γ-Al in the ball milling bottle
2O
3The 0-5 ‰ of powder quality.
10. lamp as claimed in claim 1 is characterized in that with the surface treatment method of aluminate blue fluorescent powder the number of times of washing is 2-4 time in the step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102058018A CN102337117A (en) | 2011-07-22 | 2011-07-22 | Surface processing method of aluminate blue fluorescent powder for lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102058018A CN102337117A (en) | 2011-07-22 | 2011-07-22 | Surface processing method of aluminate blue fluorescent powder for lamp |
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| Publication Number | Publication Date |
|---|---|
| CN102337117A true CN102337117A (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102058018A Pending CN102337117A (en) | 2011-07-22 | 2011-07-22 | Surface processing method of aluminate blue fluorescent powder for lamp |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624602A (en) * | 1989-09-25 | 1997-04-29 | Osram Sylvania Inc. | Method of improving the maintenance of a fluorescent lamp containing terbium-activated cerium magnesium aluminate phosphor |
| US20030198738A1 (en) * | 1999-05-19 | 2003-10-23 | Yongchi Tian | Method of coating micrometer sized inorganic particles |
-
2011
- 2011-07-22 CN CN2011102058018A patent/CN102337117A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624602A (en) * | 1989-09-25 | 1997-04-29 | Osram Sylvania Inc. | Method of improving the maintenance of a fluorescent lamp containing terbium-activated cerium magnesium aluminate phosphor |
| US20030198738A1 (en) * | 1999-05-19 | 2003-10-23 | Yongchi Tian | Method of coating micrometer sized inorganic particles |
Non-Patent Citations (2)
| Title |
|---|
| 《光源与照明》 20060331 胡恒瑶等 节能灯用溶胶-凝胶法gamma-Al2O3保护膜的研究 19-21 1-10 , 第1期 * |
| 胡恒瑶等: "节能灯用溶胶—凝胶法γ-Al2O3保护膜的研究", 《光源与照明》 * |
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Application publication date: 20120201 |