CN103059617A - Preparation method for nanometer anti-reflection self-cleaning coating solution - Google Patents
Preparation method for nanometer anti-reflection self-cleaning coating solution Download PDFInfo
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- CN103059617A CN103059617A CN2013100005918A CN201310000591A CN103059617A CN 103059617 A CN103059617 A CN 103059617A CN 2013100005918 A CN2013100005918 A CN 2013100005918A CN 201310000591 A CN201310000591 A CN 201310000591A CN 103059617 A CN103059617 A CN 103059617A
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- cleaning coating
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Abstract
The invention discloses a preparation method for a nanometer anti-reflection self-cleaning coating solution. The nanometer anti-reflection self-cleaning coating solution comprises the following components in percentage by mass: 10-25% of siloxy compound, 5-15% of additive, 1-5% of surface modifier and 60-80% of solvent. The preparation method comprises the steps as follows: adding the siloxy compound, the additive and the surface modifier into the solvent at a uniform speed in a stirring state by adopting the high gravity technology, and stirring at a stirring speed of 100-500 rpm in high gravity equipment until nanometer particles of less than 100 nm are formed in the solution, namely obtaining the nanometer anti-reflection self-cleaning coating solution. The coating solution prepared with the method can effectively improve the power generation efficiency of a photovoltaic cell assembly and avoid the shortcoming that the photovoltaic cell assembly is difficult to clean in the using process; and the preparation method is high in photoelectric efficiency, simple in preparation process and low in cost, is suitable for industrial large-scale production, and can reduce the photovoltaic power generation cost and promote the development of photovoltaic industry.
Description
Technical field
The present invention relates to a kind of preparation method who is applied to the anti-reflection self-cleaning coating liquid of solar energy photovoltaic glass nanometer.
Background technology
The photovoltaic industry belongs to renewable energy source, along with drying up of Nonrenewable energy resources.His application will cause the universe's concern.In the technology of development and utilization sun power, solar energy power generating is a kind of most study, most widely used, the market maturity and the highest technology of competitive power.The factor that determines crystal silicon solar-energy photovoltaic battery usefulness be the relevant various changes of light energy conversion efficiency because of.Most important determinative is the crystal silicon technology in the photoelectric subassembly, secondly is the photovoltaic glass in the protection photoelectric subassembly.Because crystal silicon can't be exposed in the external environment for a long time, photovoltaic glass is to protect at present one of higher best materials of crystal silicon and self transmittance.Therefore, the optical characteristics of photovoltaic glass be the outer large important change of crystal silicon technology because of.And keep and the optical characteristics that improves photovoltaic glass more than develop that the crystal silicon of high-conversion rate more comes easily, cost is much lower.So the higher photovoltaic glass of transmittance is also produced in exploitation, the assembly manufacturer still demand on terminal market all is very urgent.
The higher photovoltaic glass of exploitation transmittance has three main directions at present.Direction is that the light transmission that improves photovoltaic glass itself is done effort, but owing to the visible light transmittance rate of existing ultra-clear glasses more than 91%, the space of raising is little.Second direction is exactly the way that increases one deck anti-reflection film at the photovoltaic glass substrate, and the method is simply effective, can improve the photovoltaic glass visible light transmittance rate and reach more than 93%.The another one research direction is exactly to solve photovoltaic glass to run into the dirty problem in surface in application process.Because photovoltaic cell component generally all is mounted in the field, wilderness, the dust dust storm is large, and the time one is long, glass surface is very easily dirty, the photovoltaic glass visible light transmissivity that has even only have at first 60% has affected generating efficiency greatly, will greatly restrict the development of photovoltaic industry.Therefore, can form the self-cleaning protective layer of one deck at photovoltaic cell daylighting glass surface, under rainwash, can keep its surperficial cleanliness factor and keep for a long time the higher visible light transmittance rate of light glass surface just to have very important significance.
According to the practical application of photovoltaic cell component and By consulting literatures as can be known, rete should have following four features simultaneously on the photovoltaic glass substrate at present: one has anti-reflection effect; Two have self-cleaning effect; Three have firmly sticking power; Four have the physicochemical characteristics such as ageing-resistant, acidic fog resistance.Yet present coating liquid all is difficult to accomplish to have simultaneously above four features.For example, the CN201010243757.5 patent has been announced a kind of preparation and application of coating liquid, the physicochemical characteristic such as the coating liquid that the method provides has good sticking power, there have to be ageing-resistant, acidic fog resistance, but do not possess self-cleaning characteristic; The CN2011100816427.5 patent has been announced a kind of preparation and application of efficient coating liquid, the coating liquid that the method provides can improve the light penetration of whole solar energy spectral limit, and transmitance reaches more than 97%, have good sticking power, the physicochemical characteristics such as ageing-resistant, acidic fog resistance are arranged, but also do not possess self-cleaning characteristic; The CN201336312Y patent has been announced a kind of utility model of two-sided anti-reflection solar energy photovoltaic glass, can Effective Raise the transmittance of photovoltaic glass, but do not provide the preparation method of coating liquid.
Summary of the invention
Encounter problems for present photovoltaic glass development trend with in using, the invention provides a kind of photovoltaic glass that can not only make and have physicochemical characteristic and the high photoelectric properties of transmittance such as strong adhesion, ageing-resistant, acidic fog resistance.And has a preparation method of the anti-reflection self-cleaning coating liquid of nanometer of fine self-cleaning property.
The technical scheme that the technical problem to be solved in the present invention is taked is: described nanometer is anti-reflection self-cleaning coating liquid
The preparation method is: be 10～25% siloxy compound, 5～15% additive, 1～5% coating materials, 60～80% solvent by the quality proportioning, adopt hypergravity technique as follows step can be made into the anti-reflection self-cleaning coating liquid of nanometer:
A, under whipped state, add the siloxy compound in the solvent, with 100rpm-500 rpm stirring velocity the siloxy compound be dispersed in the solvent,
Add additive in b, the solution that under whipped state, makes to a step, stir with 100rpm-500 rpm
Speed is to solution mixing homogeneous,
Drip coating materials in c, the solution that under whipped state, makes to the b step, stir more than the 10min with 300rpm-1000 rpm speed,
D, the solution that the c step is made join in the hypergravity equipment, namely make as the anti-reflection self-cleaning coating liquid of nanometer with interior nanometer until form 100nm in the solution.
Described siloxy compound is SiO
2With a kind of in the tetraethyl silicate or both mixtures.
Described additive is La
2O
3, ZnO and Al
2O
3Three's mixture.
Described coating materials is the hydrophobic grouping organism such as band alkyl, aryl; Described band alkyl is hexadecyl
Trimethoxy silane, described aryl are o-tolyl.
Described solvent is methyl alcohol, and is a kind of in four kinds in ethanol, propyl alcohol or the water.
The present invention adopts high-gravity technology to prepare nano-coating liquid, and steady chemical structure has effectively overcome the some shortcomings of present coating liquid, reaches anti-reflection self-cleaning effect in application process, and has firmly the physicochemical characteristics such as sticking power, ageing-resistant, acidic fog resistance.This preparation method's cost is low, simple and practical, is fit to large-scale industrialization production, can effectively improve the photovoltaic glass transmittance, reduces the development of photovoltaic generation cost and promotion photovoltaic industry.
The present invention adopts the siloxy compound as main raw material, because the siloxy compound has high chemical stability, high thermal stability, ageing-resistant, acid and alkali-resistance corrodes, and can effectively avoid the decay of the transmittance that causes along with duration of service and surface contamination because of photovoltaic glass.
In view of there is a large amount of oh groups in siloxy compound surface, contact angle is lower than 40 degree, hydrophilic, for improving its hydrophobicity, has self-cleaning function, the present invention adds the coating materials with hydrophobic groupings such as alkyl, aryl in preparation coating liquid process, such as the hexadecyl Trimethoxy silane.By finishing, reduce the hydroxyl group on siloxy compound surface as far as possible, improve the coating liquid hydrophobicity, reach self-cleaning function.
Photovoltaic glass plated film purpose is to reduce the energy of reflection light of rete upper and lower surface as far as possible, increases the energy that sees through light.The present invention passes through La
2O
3, ZnO and Al
2O
3(the quality ratio range is: the La of 20-35wt% in the interpolation that the three mixes
2O
3, the ZnO of 25-40wt% and the Al of 35-50wt%
2O
3), make the index distribution of coating liquid wider,
Be conducive to form diffuse-reflectance, effectively reduce energy of reflection light, playing increases the energy that photovoltaic glass sees through light.
The present invention utilizes high-gravity technology, and the uniform solution that siloxy compound, additive, coating materials and solvent are disposed is prepared into 100nm with interior nano-coating liquid.Again by roller coat, spraying, dip-coating, brushing, spin coating, any film coating method such as lift the nano-coating liquid of preparation be coated on the photovoltaic glass substrate single or double, form firm, uniform coated layer, can not only make photovoltaic glass have sticking power, the physicochemical characteristics such as ageing-resistant, acidic fog resistance are arranged, transmittance improves the photoelectric properties more than 2.5%, and possesses well self-cleaning characteristic.
The coating liquid that the method for the invention is made can the Effective Raise photovoltaic cell component generating efficiency, avoid in use shortcoming not easy to clean of photovoltaic cell component.This preparation method not only photoelectric transformation efficiency is high, and preparation technology is simple, cost is low, is fit to large-scale industrialization production, can reduce the development of photovoltaic generation cost and promotion photovoltaic industry.
Embodiment
The invention will be further described below by specific embodiment.The below has provided several implementation cases, but patent right is not limited to these examples.
Specific embodiment
Embodiment 1: with SiO
2Be siloxy compound, La
2O
3, ZnO and Al
2O
3Three's mixture is the additive (La of three's weight ratio 30%
2O
3,, 30%ZnO and 40% Al
2O
3), the hexadecyl Trimethoxy silane is coating materials, and water is solvent, and its quality proportioning is: SiO
2: additive (La
2O
3, ZnO and Al
2O
3The three mixes): hexadecyl Trimethoxy silane: water=15%:7%:3%:75%, as follows step preparation:
A, under whipped state, in water, at the uniform velocity add SiO
2, with 100rpm-500 rpm stirring velocity the siloxy compound is dispersed in the solvent,
At the uniform velocity add La in b, the solution that under the state that stirs, makes to a step
2O
3, ZnO and Al
2O
3Three's mixture additive, with 100rpm-500 rpm stirring velocity to solution mixing homogeneous,
At the uniform velocity drip the hexadecyl Trimethoxy silane in c, the solution that under whipped state, makes to the b step, stir more than the 10min with 300rpm-1000 rpm speed,
D, the solution that the c step is made join in the hypergravity equipment and process, and can be prepared into the nano-coating liquid that particle is about 90nm.
Be coated on the photovoltaic glass substrate by the nano-coating liquid of method of roll coating with preparation, make that photovoltaic glass surface forms firmly, the uniform coated layer, sunlight transmittance raising 2.8%, and its surface has self-cleaning function.
Embodiment 2 is with SiO
2Be siloxy compound, La
2O
3, ZnO and Al
2O
3The three is mixed into the additive (La of 20wt%
2O
3, the ZnO of 40wt% and the Al of 40wt%
2O
3), the hexadecyl Trimethoxy silane is coating materials, and ethanol is solvent, and the quality proportioning is: SiO
2: additive (La
2O
3, ZnO and Al
2O
3The three mixes): hexadecyl Trimethoxy silane: ethanol=20%:10%:5%:65%.And be prepared from by embodiment 1 described method steps: be coated on the photovoltaic glass substrate by the nano-coating liquid of roller coat with preparation, can make that photovoltaic glass surface forms firmly, the uniform coated layer, sunlight transmittance raising 2.6%, and have self-cleaning function.
Embodiment 3: take tetraethyl silicate as siloxy compound, La
2O
3, ZnO and Al
2O
3The three is mixed into the additive (La of 30wt%
2O
3, the ZnO of 25wt% and the Al of 45wt%
2O
3), o-tolyl is coating materials, and methyl alcohol is solvent, and the quality proportioning is: tetraethyl silicate: (La
2O
3, ZnO and Al
2O
3The three mixes) be additive: methyl alcohol=23%:14%:2%:61%.And be prepared from by the described method steps step of embodiment 1: be coated on the photovoltaic glass substrate by the nano-coating liquid of method of roll coating with preparation, firm, uniform coated layer can have been formed, photovoltaic glass sunlight transmittance can improve 2.8%, and has self-cleaning function.
Embodiment 4: with SiO
2With tetraethyl silicate be siloxy compound (weight respectively accounts for 50%), La
2O
3, ZnO and Al
2O
3The three is mixed into the additive (La of 25wt%
2O
3, the ZnO of 40wt% and the Al of 35wt%
2O
3), the hexadecyl Trimethoxy silane is coating materials, and propyl alcohol is solvent, and the quality proportioning is: the siloxy compound: be additive (La
2O
3, ZnO and Al
2O
3The three mixes): hexadecyl Trimethoxy silane: propyl alcohol=12%:14%:4%:70%.And be prepared from by the described method step of embodiment 1: be coated on the photovoltaic glass substrate by the nano-coating liquid of method of roll coating with preparation, can have formed firmly, the uniform coated layer, photovoltaic glass sunlight transmittance can improve 2.6%, and has self-cleaning function.
Be coated on the photovoltaic glass substrate by the nano-coating liquid of method of roll coating with preparation, can have formed firm, uniform coated layer, photovoltaic glass sunlight transmittance can improve 3.0%, and has self-cleaning function.
Claims (4)
1. the preparation method of the anti-reflection self-cleaning coating liquid of nanometer: it is characterized in that: be 10～25% siloxy compound, 5～15% additive, 1～5% coating materials, 60～80% solvent by the quality proportioning, adopt high-gravity technology to can be made into as follows nano-coating liquid
A, under whipped state, in solvent, at the uniform velocity add the siloxy compound, with 100rpm-500 rpm stirring velocity the siloxy compound be dispersed in the solvent,
Add additive in b, the solution that under whipped state, makes to a step, stir with 100rpm-500 rpm
Speed is to solution mixing homogeneous,
Drip coating materials in c, the solution that under whipped state, makes to the b step, stir more than the 10min with 300rpm-1000 rpm speed,
D, the solution that the c step is prepared join in the hypergravity equipment, are the anti-reflection self-cleaning coating liquid of nanometer until form 100nm in the solution with interior nanometer.
2. the preparation method of the anti-reflection self-cleaning coating liquid of a kind of nanometer according to claim 1: it is characterized in that: described siloxy compound is SiO
2With a kind of in the tetraethyl silicate or both mixtures.
3. the preparation method of the anti-reflection self-cleaning coating liquid of a kind of nanometer according to claim 1: it is characterized in that: described additive is the La of 20-35wt%
2O
3, the ZnO of 25-40wt% and the Al of 35-50wt%
2O
3The three mixes.
4. the preparation method of the anti-reflection self-cleaning coating liquid of a kind of nanometer according to claim 1: it is characterized in that: described coating materials is band alkyl or aryl hydrophobic grouping organism; Described band alkyl is the hexadecyl Trimethoxy silane, and described aryl is o-tolyl.
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| CN201310000591.8A CN103059617B (en) | 2013-01-05 | 2013-01-05 | Preparation method for nanometer anti-reflection self-cleaning coating solution |
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| CN103059617B CN103059617B (en) | 2015-07-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082692A (en) * | 2016-06-16 | 2016-11-09 | 杨得全 | Self-cleaning surface structure of Nanometer dustproof and preparation method thereof |
| CN106565088A (en) * | 2016-11-15 | 2017-04-19 | 安徽省金志新能源科技有限公司 | Method for producing photovoltaic glass by utilizing recycled glass bottles |
| CN106566296A (en) * | 2016-11-15 | 2017-04-19 | 安徽省金志新能源科技有限公司 | Self-cleaning photovoltaic glass production process |
| CN106587608A (en) * | 2016-12-12 | 2017-04-26 | 天豪玻璃制品集团有限公司 | Glass manufacturing process of self-cleaning glass craft |
| CN106698936A (en) * | 2016-11-29 | 2017-05-24 | 安徽长庚光学科技有限公司 | Production process of self-cleaning optical lens glass |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082692A (en) * | 2016-06-16 | 2016-11-09 | 杨得全 | Self-cleaning surface structure of Nanometer dustproof and preparation method thereof |
| CN106565088A (en) * | 2016-11-15 | 2017-04-19 | 安徽省金志新能源科技有限公司 | Method for producing photovoltaic glass by utilizing recycled glass bottles |
| CN106566296A (en) * | 2016-11-15 | 2017-04-19 | 安徽省金志新能源科技有限公司 | Self-cleaning photovoltaic glass production process |
| CN106698936A (en) * | 2016-11-29 | 2017-05-24 | 安徽长庚光学科技有限公司 | Production process of self-cleaning optical lens glass |
| CN106587608A (en) * | 2016-12-12 | 2017-04-26 | 天豪玻璃制品集团有限公司 | Glass manufacturing process of self-cleaning glass craft |
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| CN103059617B (en) | 2015-07-22 |
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