CN101973712A - Ultraviolet shielding compound coating for fluorescent lamp tubes and preparation method thereof - Google Patents
Ultraviolet shielding compound coating for fluorescent lamp tubes and preparation method thereof Download PDFInfo
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- CN101973712A CN101973712A CN 201010521833 CN201010521833A CN101973712A CN 101973712 A CN101973712 A CN 101973712A CN 201010521833 CN201010521833 CN 201010521833 CN 201010521833 A CN201010521833 A CN 201010521833A CN 101973712 A CN101973712 A CN 101973712A
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Abstract
The invention relates to an ultraviolet shielding compound coating for fluorescent lamp tubes, comprising the following substances in percent by weight: 0.1-5wt% of graphene oxide, 80-90wt% of SiO2 and 5-15wt% of TiO2. A graphene oxide alcohol solution on the surface of which TiO2 particles deposit and TiO2 chemical film coating solution are utilized to prepare an ultraviolet shielding agent, and then the ultraviolet shielding agent is coated, dried and cured to prepare the ultraviolet shielding compound coating. The invention has the advantages that the compound coating has the advantages of excellent ultraviolet shielding performance, high visible light transmissivity, low usage amount and good coating binding force, can be applied to the ultraviolet shielding coatings of various transparent devices, is especially suitable for the inner coatings of the glass bulbs of various fluorescent lamp tubes and has wide market application prospect.
Description
Technical field
The present invention relates to a kind of compound coating and preparation method thereof, relate in particular to ultraviolet shielded compound coating that a kind of fluorescent tube bulb uses and preparation method thereof.
Background technology
Illumination is to be full of low-pressure argon or argon neon mixture body and mercury vapour, to coat layer of fluorescent powder at the internal surface of glass fluorescent tube with fluorescent tube, and lamp tube ends is provided with the heater winding of being made by tungsten.Behind power connection, at first electric current is by filament heating and discharge electronics, electronics can become plasma to gas in the pipe, and intraductal electric current is strengthened, after voltage between two groups of filaments surpassed certain value, fluorescent tube began to produce discharge, makes mercuryvapour put out the ultraviolet ray of 253.7nm and 185nm wavelength, the fluorescent material of fluorescent tube inner surface can absorb ultraviolet ray, sends visible light.Because ultraviolet ray can not absorb by fluorescent material fully, can see through the fluorescent tube shell, people's eyes and skin is damaged.In addition, be in the alkalimetal ion sodium ion for example in the random network of the glass cracking mesh, by diffusive migration to glass surface and phosphor particles surface, with electronics neutralization becoming sodium atom, and with mercury atom reacting generating compound sodium amalgam.It can not only absorb the visible light and the wavelength that radiate in the discharge gas is the uv-radiation of 253.7nm, but also can absorb the visible light that fluorescent material emits, and causes the light decay of luminescent lamp.
In order to slow down light decay; usually between fluorescent material and glass, apply layer of transparent successive oxide film; as nano coatings such as aluminum oxide, titanium oxide, zirconium white [Shao Yuhui, Qiu Aiye, Shao Jianzhong. long life fluorescent lamp envelope material and surface treatment thereof are learned. Chinese electric lighting; 1999; No.11,1-4], but the specific refraction of these oxide compounds is higher; cause the fluorescent tube visible light transmissivity to reduce, influence brightness.In order to solve the defective of existing ultraviolet shielded coating, can consider to use with the compound coating of silicon-dioxide as matrix, silicon-dioxide itself not only has the excellent visible light antireflective effect, and has certain uv-shielding capacity, on this basis, further interpolation is the filler of shielding of ultraviolet significantly, as graphene oxide and a small amount of titanium dioxide, thereby significantly improve ultraviolet shielded, the visible light transmissivity and the sodium ion diffusion blocking-up performance of coating, can be used as ultraviolet shielded compound coating and be applied to various illuminating lamp tubes.At present both at home and abroad in the general lighting fluorescent tube ultraviolet protection coating be nano titanium oxide, not only usage quantity is big, cost is higher, and visible light transmissivity is lower, the general illumination fluorescent tube seldom uses, and only uses in children's eye-protecting desk lamp.
Graphene is a kind of novel material of just finding in 2004, and it is by sp
2The monoatomic layer two-dirnentional structure graphite crystal that the carbon atom of hydridization is formed.This particular structure has given Graphene abundant and novel physical phenomenon and excellent performance, as has high-clarity, high strength, high conductivity, high thermal conductivity and room temperature quantum hall effect etc.As the main raw material(s) of Graphene, graphene oxide preparation not only in enormous quantities easily, and also cost is extremely cheap, and have good uv-shielding capacity.Utilize graphene oxide surface deposition thin layer titanium dioxide granule, and prepare compound ultraviolet light screener with the silicon dioxde solution uniform mixing.Apply thus the ultraviolet shielded coating obtain not only the titanium dioxide usage quantity reduce significantly, reduce material cost, and ultraviolet shielded coating visible light transmissivity significantly improves, and can substitute nano titanium oxide fully, is applied to the ultraviolet shielded coating of various transparent devices.
Summary of the invention
The object of the present invention is to provide ultraviolet shielded compound coating that a kind of fluorescent tube bulb uses and preparation method thereof, the graphene oxide (GO) of surface deposition titania nanoparticles is mixed the porous silica coating, form TiO
2-GO/SiO
2Compound coating.This coating has following outstanding advantage: (1) SiO
2Specific refraction low, can improve the visible light transmissivity of tube glass shell as anti-reflection film; (2) the compound coating sodium ion of having blocked the tube glass shell internal surface contacts with the direct of mercury vapour, thereby slows down light decay, prolonging lamp tube service life; (3) can reduce the ultraviolet ray transmissivity of illuminating lamp tube significantly, play the shielding ultraviolet rays effect.
The present invention is achieved like this, and the ultraviolet shielded compound coating that a kind of fluorescent tube bulb is used is made up of following material: graphene oxide 0.1-5 wt%, SiO
280-90 wt%, TiO
25-15 wt%.
The preparation method of the ultraviolet shielded compound coating that a kind of fluorescent tube bulb is used is:
1) using redistilled water to prepare the graphite oxide aqueous solution of 100 ml concns as the 1-50 grams per liter, add 20 milliliters of Virahols, is between 1 ~ 2 with concentrated hydrochloric acid regulator solution acidity-basicity ph value; Add gradually after mechanical stirring is even and be equivalent to TiO
2Concentration is the titanium tetrachloride of 5-150 grams per liter; This solution constant temperature under 70 ° of C was stirred 3-12 hour, filter then, wash, drying, obtain graphene oxide-titanium dioxide composite powder;
2) the step 1) composite granule being mixed with 50 gram solids contents in dehydrated alcohol is the suspension of 2-4 wt%, adding 80-90 gram solids content is the silicon-dioxide ethanolic soln of 10 wt%, evenly stir after 2 hours, obtain the fluorescent tube bulb compound ultraviolet light screener of graphene oxide-titanium dioxide-silicon-dioxide;
3) compound ultraviolet light screener is utilized dip coating, be coated on the tube glass shell inwall, successively distinguish dry solidification 30 minutes, obtain ultraviolet shielded compound coating at 60 ° of C, 200 ° of C.
Described silicon-dioxide ethanolic soln is to be the plated film solution of preparation of raw material with the tetraethoxysilance.
Advantage of the present invention is: advantages such as this compound coating has uv-shielding capacity excellence, visible light transmissivity height, usage quantity is few, the coating bonding force is good, can be applicable to the ultraviolet shielded coating of various transparent devices, be particularly useful for the undercoat of various fluorescent tube bulb glass bulbs, have wide market application prospect.
Embodiment
Embodiment one
With 0.5 wt% graphene oxide, 90 wt%SiO
2, 9.5 wt%TiO
2Component for compound coating, the preparation solid content is 7.5% ultraviolet light screener, use dip coating to apply compound coating, successively, obtain the ultraviolet shielded compound coating that thickness is about 64 nanometers 60 ° of C, 200 ° of C dry solidifications 30 minutes at the thick tube glass shell internal surface of 1mm.The ultraviolet-visible spectrum test result shows, this coating only is 0.5% in the transmitance that wavelength is lower than the following ultraviolet region of 400 nanometers, visible region in the 400-680 nanometer, average transmittances is 67%, the coating bonding force adopts hundred lattice methods, use the 3M adhesive tape test not come off, show that coating is in conjunction with good.
Embodiment two
With 2 wt% graphene oxides, 85 wt%SiO
2, 13 wt%TiO
2Component for compound coating, the preparation solid content is 7.5% ultraviolet light screener, use dip coating to apply compound coating at the thick tube glass shell internal surface of 1mm, successively 60 ° of C, 200 ° of C dry solidifications 30 minutes, obtaining thickness only was the ultraviolet shielded compound coating of 68 nanometers.The ultraviolet-visible spectrum test result shows, this coating only is 0.2% in the transmitance that wavelength is lower than the following ultraviolet region of 400 nanometers, visible region in the 400-680 nanometer, average transmittances is 64%, the coating bonding force adopts hundred lattice methods, use the 3M adhesive tape test not come off, show that coating is in conjunction with good.
Embodiment three
With 5 wt% graphene oxides, 80 wt%SiO
2, 15 wt%TiO
2Component for compound coating, the preparation solid content is 7.5% ultraviolet light screener, use dip coating to apply compound coating at the thick tube glass shell internal surface of 1mm, successively 60 ° of C, 200 ° of C dry solidifications 30 minutes, obtaining thickness only was the ultraviolet shielded compound coating of 74 nanometers.The ultraviolet-visible spectrum test result shows, this coating only is 0.1% in the transmitance that wavelength is lower than the following ultraviolet region of 400 nanometers, visible region in the 400-680 nanometer, average transmittances is 61%, the coating bonding force adopts hundred lattice methods, use the 3M adhesive tape test not come off, show that coating is in conjunction with good.
Claims (3)
1. the ultraviolet shielded compound coating that fluorescent tube bulb is used is characterized in that being made up of following material: graphene oxide 0.1-5 wt%, SiO
280-90 wt%, TiO
25-15 wt%.
2. the preparation method of the ultraviolet shielded compound coating used of the described a kind of fluorescent tube bulb of claim 1 is characterized in that method steps is:
1) using redistilled water to prepare the graphite oxide aqueous solution of 100 ml concns as the 1-50 grams per liter, add 20 milliliters of Virahols, is between 1 ~ 2 with concentrated hydrochloric acid regulator solution acidity-basicity ph value; Add gradually after mechanical stirring is even and be equivalent to TiO
2Concentration is the titanium tetrachloride of 5-150 grams per liter; This solution constant temperature under 70 ° of C was stirred 3-12 hour, filter then, wash, drying, obtain graphene oxide-titanium dioxide composite powder;
2) the step 1) composite granule being mixed with 50 gram solids contents in dehydrated alcohol is the suspension of 2-4 wt%, adding 80-90 gram solids content is the silicon-dioxide ethanolic soln of 10 wt%, evenly stir after 2 hours, obtain the fluorescent tube bulb compound ultraviolet light screener of graphene oxide-titanium dioxide-silicon-dioxide;
3) compound ultraviolet light screener is utilized dip coating, be coated on the tube glass shell inwall, successively distinguish dry solidification 30 minutes, obtain ultraviolet shielded compound coating at 60 ° of C, 200 ° of C.
3. the preparation method of the ultraviolet shielded compound coating that a kind of fluorescent tube bulb according to claim 1 is used is characterized in that the silicon-dioxide ethanolic soln is is the plated film solution of preparation of raw material with the tetraethoxysilance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105218334A CN101973712B (en) | 2010-10-28 | 2010-10-28 | Ultraviolet shielding compound coating for fluorescent lamp tubes and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105218334A CN101973712B (en) | 2010-10-28 | 2010-10-28 | Ultraviolet shielding compound coating for fluorescent lamp tubes and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973712A true CN101973712A (en) | 2011-02-16 |
| CN101973712B CN101973712B (en) | 2012-04-18 |
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| CN2010105218334A Expired - Fee Related CN101973712B (en) | 2010-10-28 | 2010-10-28 | Ultraviolet shielding compound coating for fluorescent lamp tubes and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013175260A1 (en) * | 2012-05-25 | 2013-11-28 | Indian Institute Of Technology Madras | Luminescent graphene patterns |
| CN104402241A (en) * | 2014-10-15 | 2015-03-11 | 吉林雄飞科技有限公司 | Safe and environmental-protective student eyesight-protecting electrodeless lamp coating |
| 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 |
| CN110349833A (en) * | 2019-06-02 | 2019-10-18 | 威海鑫润德贸易有限公司 | A kind of fluorescent tube inner coating and preparation method thereof |
| CN110497633A (en) * | 2019-07-06 | 2019-11-26 | 欧名龙 | A kind of preparation method of antiultraviolet high intensity decorating film |
| CN112226104A (en) * | 2020-09-22 | 2021-01-15 | 广东极客亮技术有限公司 | Ultraviolet-proof graphene coating with hierarchical pore structure, ultraviolet-proof material and preparation method of ultraviolet-proof graphene coating |
| CN112374767A (en) * | 2019-11-07 | 2021-02-19 | 陕西彩虹新材料有限公司 | Preparation method of functional coating for photovoltaic glass |
| CN113698655A (en) * | 2021-09-03 | 2021-11-26 | 四川依菲兰科技有限公司 | Preparation method of graphene heat dissipation eye protection desk lamp |
Families Citing this family (1)
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|---|---|---|---|---|
| CN107418288A (en) * | 2017-07-14 | 2017-12-01 | 湖南沃特邦恩新材料有限公司 | A kind of coating additive capable of purifying air and preparation method and application |
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| CN101474899A (en) * | 2009-01-16 | 2009-07-08 | 南开大学 | Grapheme-organic material layered assembling film and preparation method thereof |
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| CN101717203A (en) * | 2009-12-15 | 2010-06-02 | 清华大学 | Method for depositing photoinduced graphene onto fiber end surfaces |
| US20100255447A1 (en) * | 2009-04-07 | 2010-10-07 | University Of Arkansas | Advanced bio-compatible polymer surface coatings for implants and tissue engineering scaffolds |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013175260A1 (en) * | 2012-05-25 | 2013-11-28 | Indian Institute Of Technology Madras | Luminescent graphene patterns |
| US9424505B2 (en) | 2012-05-25 | 2016-08-23 | Indian Institute Of Technology Madras | Luminescent graphene patterns |
| US10196564B2 (en) | 2012-05-25 | 2019-02-05 | Indian Institute Of Technology Madras | Luminescent graphene patterns |
| CN104402241A (en) * | 2014-10-15 | 2015-03-11 | 吉林雄飞科技有限公司 | Safe and environmental-protective student eyesight-protecting electrodeless lamp coating |
| 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 |
| CN110349833A (en) * | 2019-06-02 | 2019-10-18 | 威海鑫润德贸易有限公司 | A kind of fluorescent tube inner coating and preparation method thereof |
| CN110497633A (en) * | 2019-07-06 | 2019-11-26 | 欧名龙 | A kind of preparation method of antiultraviolet high intensity decorating film |
| CN112374767A (en) * | 2019-11-07 | 2021-02-19 | 陕西彩虹新材料有限公司 | Preparation method of functional coating for photovoltaic glass |
| CN112374767B (en) * | 2019-11-07 | 2023-01-24 | 陕西彩虹新材料有限公司 | Preparation method of functional coating for photovoltaic glass |
| CN112226104A (en) * | 2020-09-22 | 2021-01-15 | 广东极客亮技术有限公司 | Ultraviolet-proof graphene coating with hierarchical pore structure, ultraviolet-proof material and preparation method of ultraviolet-proof graphene coating |
| CN112226104B (en) * | 2020-09-22 | 2021-08-31 | 广东极客亮技术有限公司 | Ultraviolet-proof graphene coating with hierarchical pore structure, ultraviolet-proof material and preparation method of ultraviolet-proof graphene coating |
| CN113698655A (en) * | 2021-09-03 | 2021-11-26 | 四川依菲兰科技有限公司 | Preparation method of graphene heat dissipation eye protection desk lamp |
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Granted publication date: 20120418 Termination date: 20121028 |