CN100530516C - Water paint containing brockite type TiO2 and its use - Google Patents
Water paint containing brockite type TiO2 and its use Download PDFInfo
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- CN100530516C CN100530516C CNB2007100366501A CN200710036650A CN100530516C CN 100530516 C CN100530516 C CN 100530516C CN B2007100366501 A CNB2007100366501 A CN B2007100366501A CN 200710036650 A CN200710036650 A CN 200710036650A CN 100530516 C CN100530516 C CN 100530516C
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- tio
- water paint
- brookite type
- coated
- glass tubes
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Abstract
In water paint of containing brookite type TiO2, solid content of brookite type Nano TiO2 is 0.5-5wt%. Without need of changing equipment and technique of alumina protective film coat, the water paint of containing brookite type TiO2 can replace Nano gamma - Al2O3 pulp to apply to inner wall of glass tube of fluorescent lamp to form continuous and transparent protective film. Advantages are: raised service life of fluorescent lamp evidently; it is consistent between gamma - Al2O3 protective film and the water paint of containing brookite type TiO2 for initial luminous flux within 100 hours; rate of sustaining luminous flux for 4000 hours of the water paint of containing brookite type TiO2 is higher than 3-5% of the rate of the gamma - Al2O3 protective film.
Description
Technical field
The present invention relates to a kind of fluorescent glass tubes, be specifically related to the diaphragm of fluorescent glass tubes inwall.
Background technology
A large amount of energy that fluorescent lamp is in use consumed and to the influence of earth environment more and more cause people's attention.So how improving the useful life of fluorescent lamp and the light efficiency of raising fluorescent lamp is the great techno-economic question of energy savings, protection environment.
A key factor that influences fluorescent lifetime and light efficiency is that fluorescent glass tubes can turn black behind long-term burning-point, and the light transmission rate of glass-tube is descended, and promptly luminous flux reduces.The reason of glass-tube blackout is had:
At first the mercury atom of gaseous state and charged mercury ion constantly ooze the people to the dark network space of glass surface 1nm in discharge environment, the concentration of mercury on the glass-tube surface formation " surperficial accumulating layer " that reaches capacity after limited network space is filled, mercury ion in the accumulating layer is constantly moved to the depths of the inner 30-40nm of glass again from accumulating layer under the optical electric field effect that ultraviolet irradiation forms then. and these mercury ions finally are reduced to mercury atom photoelectronic making under the effect, generate the metallic state mercury of glass-tube blackout is dripped.
Secondly, sodium ion in the glass under the synergy of the negative electric field of glass surface and phosphor particles surface electronic charges and temperature diffusive migration to glass surface and phosphor particles surface, become sodium atom with the electronics neutralization, then with mercury atom reacting generating compound sodium amalgam.Sodium amalgam can be the powder of grey securely attached to glass surface and phosphor particles surface.It can not only absorb the visible light and the wavelength that radiate in the discharge gas is the ultra-violet radiation of 253.7nm, but also can absorb the visible light that fluorescent material emits.
In order to overcome charged mercury ion effectively to the infiltration of glass surface with stop sodium ion in the glass structure to the glass surface diffusive migration with separate out, just need clog the mesh of all crackings of glass surface and seal.It is impossible clogging and seal mesh with the accumulation of powdery granule, because sodium ion still can and be separated out by the gap between particle migration.Conventional method uses continuous printing opacity or transparent thin film layer to come the insulating glass superficial layer to contact with the direct of mercury ion, i.e. the fluorescent tube diaphragm.
The present nanometer γ-Al that generally adopts
2O
3As diaphragm, its stable chemical performance does not absorb ultraviolet ray and visible light, is more satisfactory diaphragm material.But γ-Al
2O
3Diaphragm is by discrete Al
2O
3The accumulation of particle forms, and the hole between these particles is very big, and mercury ion will bombard glass surface at the hole place, and sodium atom will be diffused into the particle surface of fluorescent material by these holes.Therefore, γ-Al
2O
3The protection effect of diaphragm is relatively poor.If protection effect well will be arranged, then require γ-Al
2O
3The thickness of film is several microns, and this will reduce the initial luminous flux of lamp.Rete is too thick in addition also will make fluorescent tube envelope and butt joint produce difficulty.Also can prepare this type oxide transparent protective film with the organic precursor of cerium, titanium, aluminium, yttrium, lanthanum.The advantage of transparent protective film is that rete is firm, continuous, fine and close, unlike γ-Al
2O
3Naturally pile up by fine grain like that.The initial light of lamp is logical higher, and its protection effect is than using γ-Al
2O
3Light transmission protecting film to get well; Secondly, because of rete is continuously fine and close, so just can play a protective role less than the thickness of 1 μ m.
(" compact fluorescent lamp diaphragms " such as side's road fats; China's electric lighting; 1991 (1)) reported that the use metallo-organic compound is applied to the glass lamp inwall, as 9W double-H groove weld lamp, lux maintenance can improve 8～10% than what be not coated with diaphragm during burning-point 2000h.But prepare the transparent oxide diaphragm with metallo-organic compound, with water nano γ-Al
2O
3Protective layer technology difference must be through special high-temperature heat treatment process decomposing organic matter.And in order to obtain evenly transparent diaphragm continuously, must strict control to metallorganic Technology for Heating Processing condition.This technology controlling and process and operation be difficulty relatively, easily causes the diaphragm structural integrity poor, influences the lux maintenance of lamp.
Shao Yuhui etc. (" long life fluorescent lamp envelope material and surface treatment thereof are learned ", China's electric lighting, 1999 (11) have reported that U.S.'s Westinghouse Electrical Corp. uses organo-metallic compound tetra isopropyl titanate (ester) or tetrabutyl titanate salt to be dissolved into and makes the solution that is coated with application in organic solvent butanols or the butyl acetate, the transparent TiO that obtains
2Film.But because thermal decomposition obtains TiO through metallo-organic compound
2Crystalline phase is rutile-type or anatase titanium dioxide.The rutile-type or the anatase titanium dioxide TiO of this high refractive index
2, at vacuum and TiO
2Rete at the interface with at TiO
2Rete and glass can produce stronger Fresnel reflection light loss at the interface, this will cause light output to reduce, promptly light efficiency reduces.
Summary of the invention
One of technical issues that need to address of the present invention are to disclose a kind of brookite type TiO that contains
2Water paint, be used for the diaphragm of fluorescent glass tubes inwall, to overcome the above-mentioned defective that existing technology exists;
Two of the technical issues that need to address of the present invention are to disclose a kind of inwall to be coated with said brookite type TiO
2The fluorescent glass tubes and preparation method thereof of water paint.
The said brookite type TiO that contains
2Water paint, its crystalline phase is the stable type brookite type.Nano-TiO
2Solids content be 0.5-5wt%; Solid content is less than 0.5wt%, and it is too thin to be coated with thicknesses of layers, can not play the effect of diaphragm.If greater than 5wt%, diaphragm thickness is too thick, influences the output of light.
Nano-TiO
2Particle diameter be the 5-100nm nanometer, be dispersed in the aqueous solution, if TiO
2Particle is greater than 100nm, and the diaphragm of formation is easy to generate the space, and sodium ion will generate the black sodium amalgam by space and mercury reaction, influences light efficiency;
The said brookite type TiO that contains
2Water paint can substitute γ-Al in the equipment and the technology that not change existing alumina protective layer coating
2O
3Slurry is applied to the inwall of fluorescent glass tubes, forms continuous transparent protective film.Owing to be water paint, after filming, need not heat treatment, with to be coated with alumina protective layer the same, dryly in hot-blast stove can obtain transparent TiO continuously
2Rete.The diaphragm that this layer is transparent does not have influence to sealing with docking operation, does not need the extra wiping pipe of picture alumina protective layer.Owing to be brookite type TiO2, visible reflectance is low than rutile and anatase titanium dioxide, has overcome rutile and anatase titanium dioxide diaphragm coating and glass and fluorescent material Fresnel reflection at the interface, has reduced the light output that reflection causes.Therefore scribble titanium ore type nano-TiO
2The fluorescent lamp of diaphragm not only has high lux maintenance, keeps high light efficiency in addition.
Said fluorescent glass tubes comprises compact fluorescent lamps such as straight tube shape, spirality, U-shaped.
The said brookite type TiO that contains
2The preparation method of water paint be foolproof, with said brookite type TiO
2Mix with water and to get final product.
The said inwall of the present invention is coated with said brookite type TiO
2The fluorescent glass tubes of water paint, comprise fluorescent glass tubes and be coated in the diaphragm of its inwall that said diaphragm is for containing pyromelane nanometer TiO
2, nano-TiO
2Particle diameter be the 5-100nm nanometer, TiO on the glass-tube unit are
2Amount be 0.02-2.00g/m
2
Inwall is coated with said brookite type TiO
2The preparation method of fluorescent glass tubes of water paint, comprise the steps:
With above-mentioned water-based pyromelane nanometer TiO
2Water paint is coated on the fluorescent glass tubes inwall with vacuum, pressure or spraying method, through 65-120 ℃ heated-air drying.
Advantage of the present invention is very significant, and obviously improve the useful life of fluorescent lamp, 100 hours initial luminous fluxs and nanometer γ-Al
2O
3The diaphragm unanimity, lux maintenance was than using nanometer γ-Al in 4000 hours
2O
3The high 3-5% of diaphragm.
Embodiment
Embodiment 1
Being averaged particle diameter is the brookite type titanium dioxide aqueous solution of 10nm, 0.5wt%, is coated on 20W three U the inner surface of tube, glass-tube inwall TiO with spraying method
2Average coated weight is 0.09g/m
2, dry in 85 degrees centigrade hot-blast stove then, technology is made the 20W fluorescent lamp routinely.Adopt the GB/T17262-2002 standard method to detect, 100 hours initial luminous fluxs are 1287lm, and lux maintenance was 91.2% in 4000 hours.
Embodiment 2
Being averaged particle diameter is the brookite type titanium dioxide aqueous solution of 40nm, 1wt%, is coated on 20W three U the inner surface of tube, glass-tube inwall TiO with spraying method
2Average coated weight is 0.16g/m
2, dry in 85 degrees centigrade hot-blast stove then, technology is made the 20W fluorescent lamp routinely.Adopt the GB/T17262-2002 standard method to detect, 100 hours initial luminous fluxs are 1279lm, and lux maintenance was 91.4% in 4000 hours.
Embodiment 3
Being averaged particle diameter is the brookite type titanium dioxide aqueous solution of 40nm, 1wt%, is coated on 27W T8 the inner surface of tube with spraying method, glass-tube inwall TiO
2Average coated weight is 0.18g/m
2, dry in 85 degrees centigrade hot-blast stove then, technology is made the 20W fluorescent lamp routinely.Adopt the GB/T10682-2002 standard method to detect, 100 hours initial luminous fluxs are 2210lm, and lux maintenance was 90.5% in 4000 hours.
Embodiment 4
Being averaged particle diameter is the brookite type titanium dioxide aqueous solution of 20nm, 2wt%, inhales coating method with vacuum and is coated on 15W helical type lamp inner surface, glass-tube inwall TiO
2Average coated weight is 0.4g/m
2, dry in 85 degrees centigrade hot-blast stove then, technology is made the 15W fluorescent lamp routinely.Adopt the GB/T17262-2002 standard method to detect, 100 hours initial luminous fluxs are 860lm, and lux maintenance was 91.8% in 4000 hours.
Comparative example 1
Being averaged particle diameter is the gama-alumina solution of 200nm, 5wt%, is coated on 15W helical type lamp inner surface, glass-tube inwall Al
2O
3Average coated weight is 4.2g/m
2, dry in 85 degrees centigrade hot-blast stove then, technology is made the 15W fluorescent lamp routinely.Adopt the GB/T17262-2002 standard method to detect, 100 hours initial luminous fluxs are 855lm, and lux maintenance was 88.2% in 4000 hours.
Comparative example 2
Exposed conduit is coating protective film not, directly carries out dusting, roasted tube according to a conventional method, seals, exhaust, ageing, makes the 13W helical type florescent lamp.100 hours initial luminous fluxs are 870lm.Adopt the GB/T17262-2002 standard method to detect, lux maintenance was 85.0% in 4000 hours.
Claims (5)
1. an inwall is coated with brookite type TiO
2The fluorescent glass tubes of water paint, comprise fluorescent glass tubes and be coated in the diaphragm of its inwall, it is characterized in that said diaphragm is pyromelane nanometer TiO
2
2. inwall according to claim 1 is coated with brookite type TiO
2The fluorescent glass tubes of water paint, it is characterized in that pyromelane nanometer TiO
2Particle diameter be the 5-100nm nanometer.
3. inwall according to claim 1 and 2 is coated with brookite type TiO
2The fluorescent glass tubes of water paint, it is characterized in that brookite type nano-TiO on the glass-tube unit are
2Amount be 0.02-2.00g/m
2
4. inwall according to claim 1 and 2 is coated with brookite type TiO
2The fluorescent glass tubes of water paint, it is characterized in that said fluorescent glass tubes comprises straight tube shape, spirality or U-shaped.
5. claim 1,2 or 3 described inwalls are coated with brookite type TiO
2The preparation method of fluorescent glass tubes of water paint, it is characterized in that, comprise the steps: water-based pyromelane nanometer TiO
2Water paint is coated on the fluorescent glass tubes inwall with vacuum, pressure or spraying method, through 65-120 ℃ heated-air drying;
Described water-based pyromelane nanometer TiO
2In the water paint, pyromelane nanometer TiO
2Solids content be 0.5-5wt%, pyromelane nanometer TiO
2Particle diameter be the 5-100 nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100366501A CN100530516C (en) | 2007-01-19 | 2007-01-19 | Water paint containing brockite type TiO2 and its use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100366501A CN100530516C (en) | 2007-01-19 | 2007-01-19 | Water paint containing brockite type TiO2 and its use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101005004A CN101005004A (en) | 2007-07-25 |
| CN100530516C true CN100530516C (en) | 2009-08-19 |
Family
ID=38704066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100366501A Expired - Fee Related CN100530516C (en) | 2007-01-19 | 2007-01-19 | Water paint containing brockite type TiO2 and its use |
Country Status (1)
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|---|---|
| CN (1) | CN100530516C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224820B (en) * | 2016-07-25 | 2019-05-31 | 连云港市一明医疗科技有限公司 | A kind of high photosynthetic efficiency eye-protecting lamp |
| CN110400702A (en) * | 2019-04-15 | 2019-11-01 | 南京工业大学 | The composite material of a kind of extra small titanium dioxide granule and carbon and its application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3377494A (en) * | 1965-05-24 | 1968-04-09 | Westinghouse Electric Corp | Fluorescent lamp envelope with transparent protective coatings |
| US3599029A (en) * | 1969-10-31 | 1971-08-10 | Gen Electric | Fluorescent lamp envelope with transparent protective coating |
| CN1309621A (en) * | 1998-05-14 | 2001-08-22 | 昭和电工株式会社 | Titanium oxide sol, thin film, and process for producing these |
| US20030232186A1 (en) * | 2002-06-12 | 2003-12-18 | Toshiba Lighting & Technology Corporation | Photocatalyst coating |
| US20040146740A1 (en) * | 1996-08-30 | 2004-07-29 | Showa Denko K.K. | Particles, aqueous dispersion and film of titanium oxide, and preparation thereof |
-
2007
- 2007-01-19 CN CNB2007100366501A patent/CN100530516C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3377494A (en) * | 1965-05-24 | 1968-04-09 | Westinghouse Electric Corp | Fluorescent lamp envelope with transparent protective coatings |
| US3599029A (en) * | 1969-10-31 | 1971-08-10 | Gen Electric | Fluorescent lamp envelope with transparent protective coating |
| US20040146740A1 (en) * | 1996-08-30 | 2004-07-29 | Showa Denko K.K. | Particles, aqueous dispersion and film of titanium oxide, and preparation thereof |
| CN1309621A (en) * | 1998-05-14 | 2001-08-22 | 昭和电工株式会社 | Titanium oxide sol, thin film, and process for producing these |
| US20030232186A1 (en) * | 2002-06-12 | 2003-12-18 | Toshiba Lighting & Technology Corporation | Photocatalyst coating |
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| Publication number | Publication date |
|---|---|
| CN101005004A (en) | 2007-07-25 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090819 Termination date: 20140119 |