CN114316701B - Self-cleaning solar cell panel - Google Patents
Self-cleaning solar cell panel Download PDFInfo
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- CN114316701B CN114316701B CN202111468198.2A CN202111468198A CN114316701B CN 114316701 B CN114316701 B CN 114316701B CN 202111468198 A CN202111468198 A CN 202111468198A CN 114316701 B CN114316701 B CN 114316701B
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Abstract
The invention discloses a self-cleaning solar cell panel, which is characterized in that a micron-sized titanium-containing solid glass microsphere is added into a surface self-cleaning coating, and a control process is adopted, so that the coating has super-hydrophobic performance and photocatalytic performance, dust and industrial pollutants adsorbed on the surface of the solar cell panel can be effectively cleaned, the aging resistance is improved, and the service life is prolonged.
Description
Technical Field
The invention relates to a self-cleaning solar cell panel.
Background
In modern energy, traditional energy seriously affects climate change, so that society increasingly turns to clean energy, wherein solar energy is an extremely important clean energy. However, in the case of solar energy, a solar panel having a photoelectric energy conversion effect must be used.
Solar panels (Solar panels) are devices that directly or indirectly convert Solar radiation energy into electrical energy by photoelectric or photochemical effects by absorbing sunlight, and most Solar panels are made of "silicon" as a main material.
In the use process of the solar cell panel, the installation place is generally selected in a wide and barren open area, the solar cell panel is exposed to the sun, rain and wind all the year round, and in addition, the ground soil environment is severe, so that the problems of dust coverage, electrostatic dust accumulation, snow and frost coverage and the like are easy to occur, and the power generation efficiency is influenced. Therefore, the self-cleaning coating type solar panel is widely concerned, and various anti-fouling self-cleaning anti-reflection coatings have been developed based on different self-cleaning principles, and the technology mainly comprises the following steps: (1) The silicon resin is used for preparing the super-hydrophobic antifouling anti-reflection coating to prevent dust adsorption; (2) The nano titanium dioxide is doped to prepare the photocatalytic super-hydrophilic antifouling anti-reflection coating, and the hydrophilicity of attached dust and industrial pollutants is improved by virtue of the photocatalytic effect, so that the dust and the industrial pollutants are easily removed by rainwater washing; (3) The antistatic super-hydrophilic antifouling anti-reflection coating prepared by doping the nano semiconductor powder can reduce the adsorption capacity and the binding force of dust, so that the dust can be easily and naturally removed under the action of natural wind or self gravity.
However, the three antifouling self-cleaning anti-reflection coatings have the defects that: after the super-hydrophobic antifouling anti-reflection coating is used and aged for a long time, the super-hydrophobic property of the film layer gradually disappears, and the self-cleaning effect is lost; the method of doping the nano titanium dioxide can affect the light transmittance and reduce the power generation efficiency; the method for doping the nano semiconductor powder is expensive and is difficult to adapt to large-scale production and popularization.
Disclosure of Invention
The invention discloses a self-cleaning solar cell panel, which is characterized in that a micron-sized titanium-containing solid glass microsphere is added into a surface self-cleaning coating, and a control process is adopted, so that the coating has super-hydrophobic performance and photocatalytic performance, dust and industrial pollutants adsorbed on the surface of the solar cell panel can be effectively cleaned, the aging resistance is improved, and the service life is prolonged.
A self-cleaning solar panel, the surface of which is coated with a self-cleaning coating, the self-cleaning coating comprising the following components:
5 to 8 portions of colloidal silicon dioxide, 8 to 10 portions of acrylic resin, 1 to 3 portions of fluorine-containing resin, 0.5 to 1 portion of micron-sized titanium-containing solid glass microspheres, 10 to 15 portions of absolute ethyl alcohol and 0.01 to 0.03 portion of organic tin catalyst. The above are all parts by mass.
Wherein the colloidal silica is MOS-2012 stabilized colloidal silica; the acrylic resin is ALMATEX L1057 thermosetting acrylic resin; the fluorine-containing resin is ZX-641; the organic tin catalyst is dibutyltin dilaurate.
The preparation method of the micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing quartz sand or crystal sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 800-900 ℃, then heating to 1300-1500 ℃ for melting, adding a defoaming agent after melting to eliminate bubbles;
(2) Cooling to 1100-1300 ℃, blowing the molten liquid by high-speed airflow, and melting into a spherical shape by a high-pressure torch to prepare spherical glass microspheres;
(3) Cooling the spherical glass microspheres to 70-90 ℃, spraying atomized hydrofluoric acid according to 1-3% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 20-30 min, and heating to 120-130 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 2-3 times by using purified water to prepare the micron-sized titanium-containing solid glass microspheres.
Furthermore, the raw materials used in the step (1) comprise quartz sand or crystal sand, soda ash, calcite, di (triethanolamine) diisopropyl titanate and a defoaming agent in a mass ratio of 60-80.
Further, the antifoaming agent in the step (1) is DEFEN DF-3697G.
Further, the hydrofluoric acid in the step (3) is 35.35% hydrofluoric acid.
Furthermore, the particle size of the micron-sized titanium-containing solid glass microsphere is 10-15 μm.
The coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 15-20 microns, after coating, heating to 100-110 ℃ to remove a solvent, then heating to 150-160 ℃ in a rapid heating mode at a speed of 20-30 ℃/min, and then preserving heat and curing for 20-30 min.
The invention has the advantages that: according to the invention, the micron-sized titanium-containing solid glass microspheres are added into the surface self-cleaning coating, and the process is controlled, so that the coating has both super-hydrophobic performance and photocatalytic performance, dust and industrial pollutants adsorbed on the surface of the solar cell panel can be effectively cleaned, the aging resistance is improved, and the service life is prolonged.
Detailed Description
Example 1
A self-cleaning solar panel, the surface of which is coated with a self-cleaning coating, the self-cleaning coating comprising the following components:
5 parts of colloidal silicon dioxide, 10 parts of acrylic resin, 3 parts of fluorine-containing resin, 1 part of micron-sized titanium-containing solid glass microspheres, 15 parts of absolute ethyl alcohol and 0.03 part of organic tin catalyst.
The preparation method of the micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing quartz sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 800 ℃, heating to 1300 ℃ for melting, and adding a defoaming agent DF-3697G to eliminate bubbles after melting;
(2) Cooling to 1100 deg.c, blowing molten liquid with high speed airflow and melting in high pressure blast lamp to form spherical glass microsphere;
(3) Cooling the spherical glass microspheres to 70 ℃, spraying 35.35% of atomized hydrofluoric acid according to 3% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 30min, and heating to 120 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 3 times by using purified water to prepare the micron-sized titanium-containing solid glass microspheres.
The raw materials used in the step (1) are quartz sand, soda ash, calcite, di (triethanolamine) diisopropyl titanate and defoamer in a mass ratio of 60.
The grain diameter of the micron-sized titanium-containing solid glass microspheres is 15 microns.
The coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 20 mu m, heating the mixture to 110 ℃ after coating is finished, removing a solvent, heating the mixture to 150 ℃ in a rapid heating mode of 20 ℃/min, and then preserving heat and curing the mixture for 30min.
Example 2
A self-cleaning solar panel, the surface of which is coated with a self-cleaning coating, the self-cleaning coating comprising the following components:
6 parts of colloidal silicon dioxide, 9 parts of acrylic resin, 2 parts of fluorine-containing resin, 0.8 part of micron-sized titanium-containing solid glass microspheres, 12 parts of absolute ethyl alcohol and 0.02 part of organic tin catalyst.
The preparation method of the micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing quartz sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 850 ℃, heating to 1450 ℃ for melting, and adding a defoaming agent DF-3697G to eliminate bubbles after melting;
(2) Cooling to 1250 ℃, blowing the molten liquid by high-speed airflow, and melting into a spherical shape by a high-pressure blast lamp to prepare spherical glass microspheres;
(3) Cooling the spherical glass microspheres to 80 ℃, spraying 35.35% of atomized hydrofluoric acid according to 2% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 30min, and heating to 130 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 3 times by using purified water to prepare the micron-sized titanium-containing solid glass microspheres.
The raw materials used in the step (1) are quartz sand, soda ash, calcite, di (triethanolamine) diisopropyl titanate and a defoaming agent in a mass ratio of 70.
The grain size of the micron-sized titanium-containing solid glass microspheres is 12 microns.
The coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 16 mu m, heating to 105 ℃ after coating is finished, removing a solvent, heating to 155 ℃ in a rapid heating mode of 22 ℃/min, and then preserving heat and curing for 30min.
Example 3
A self-cleaning solar cell panel, the surface of which is coated with a self-cleaning coating, the self-cleaning coating comprising the following components:
8 parts of colloidal silicon dioxide, 8 parts of acrylic resin, 1 part of fluorine-containing resin, 0.5 part of micron-sized titanium-containing solid glass microspheres, 10 parts of absolute ethyl alcohol and 0.01 part of organic tin catalyst.
The preparation method of the micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing the crystal sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 900 ℃, heating to 1500 ℃ for melting, and adding a defoaming agent DF-3697G to eliminate bubbles after melting;
(2) Cooling to 1300 ℃, blowing the molten liquid by high-speed airflow, and melting into a spherical shape by a high-pressure blast lamp to prepare spherical glass microspheres;
(3) Cooling the spherical glass microspheres to 90 ℃, spraying 35.35% of atomized hydrofluoric acid according to 1% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 20min, and heating to 130 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 2 times by using purified water to prepare the micron-sized titanium-containing solid glass microspheres.
The raw materials used in the step (1) are the following components in mass ratio of crystal sand to calcined soda to calcite to di (triethanolamine) diisopropyl titanate to defoamer to (80).
The grain diameter of the micron-sized titanium-containing solid glass microsphere is 10 mu m.
The coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 15 mu m, heating to 100 ℃ after coating is finished, removing a solvent, heating to 160 ℃ in a rapid heating mode of 30 ℃/min, and then preserving heat and curing for 20min.
Comparative example 1
The self-cleaning solar panel is prepared in the same manner as in example 2 except that the self-cleaning coating coated on the surface of the self-cleaning solar panel is not added with micron-sized titanium-containing solid glass microspheres.
Comparative example 2
The self-cleaning solar panel is characterized in that the components of the self-cleaning coating coated on the surface of the self-cleaning solar panel are common solid glass microspheres instead of micron-sized titanium-containing solid glass microspheres, and the rest is the same as the embodiment 2.
Comparative example 3
A self-cleaning solar panel is coated with a self-cleaning coating, and the self-cleaning coating comprises the following components:
4 parts of colloidal silicon dioxide, 12 parts of acrylic resin, 4 parts of fluorine-containing resin, 0.3 part of micron-sized titanium-containing solid glass microspheres, 18 parts of absolute ethyl alcohol and 0.04 part of organic tin catalyst; the rest is the same as example 2.
Comparative example 4
A self-cleaning solar panel, wherein the micron-sized titanium-containing solid glass microspheres are prepared without adding di (triethanolamine) diisopropyl titanate, as in example 2.
Comparative example 5
A self-cleaning solar panel is prepared by preparing micron-sized titanium-containing solid glass microspheres, wherein hydrofluoric acid is not used for corroding the surfaces of the spherical glass microspheres, and the rest is the same as in example 2.
Comparative example 6
A self-cleaning solar panel is prepared by a preparation method of micron-sized titanium-containing solid glass microspheres, wherein the mass ratio of quartz sand to calcined soda to calcite to diisopropyl di (triethanolamine) titanate to defoamer is (58); the rest is the same as example 2.
Comparative example 7
A self-cleaning solar panel, the preparation method of micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing quartz sand or crystal sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 950 ℃, heating to 1600 ℃ for melting, and adding a defoaming agent DF-3697G to eliminate bubbles after melting;
(2) Cooling to 1060 ℃, blowing the molten liquid by high-speed airflow, and melting into a spherical shape by a high-pressure blast lamp to prepare spherical glass microspheres;
(3) Cooling the spherical glass microspheres to 60 ℃, spraying 35.35% of atomized hydrofluoric acid according to 4% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 10min, and heating to 110 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 1 time by using purified water to prepare micron-sized titanium-containing solid glass microspheres, wherein the particle size of the micron-sized titanium-containing solid glass microspheres is 20 microns;
the rest is the same as example 2.
Comparative example 8
A self-cleaning solar cell panel is coated with a self-cleaning coating on the surface, and the coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 25 mu m, heating the mixture to 120 ℃ after coating, removing a solvent, heating the mixture to 155 ℃ in a heating mode of 10 ℃/min, and then preserving heat and curing the mixture for 30min;
the rest is the same as example 2.
Comparative example 9
A self-cleaning solar cell panel is coated with a self-cleaning coating on the surface, and the coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 25 mu m, directly heating the mixture to 155 ℃ after coating, and then preserving heat and curing the mixture for 30min; the rest is the same as example 2.
And (3) performance testing:
the colloidal silica used in the above examples and comparative examples was MOS-2012 stabilized colloidal silica, the acrylic resin used was ALMATEX L1057 thermoset acrylic resin, the fluorine-containing resin used was ZX-641, and the organotin catalyst used was dibutyltin dilaurate; the prepared solar panel has a uniform size of 1.956m x 0.991m. The solar cell panels prepared in the above examples and comparative examples were subjected to a stain resistance test and an aging test.
1. Aging test
1. And (3) photo aging test: according to ASTM G155-2005, plastic outdoor xenon lamp aging test method, the solar cell panels prepared in the above examples and comparative examples are uniformly photo-aged with xenon arc light as an irradiation light source, and after aging, the photo-aging color difference value Delta E of the coating is tested;
2. meanwhile, the solar cell panel after photo-aging is tested for dust adsorption capacity and surface oil stain conditions together with the solar cell panel in a normal state according to the following stain resistance test method.
2. Stain resistance test
1. The solar cell panel prepared in each embodiment and the comparative example and the solar cell panel subjected to photoaging are placed in a sand environment for 7 days in a unified manner, then dust on the solar cell panel is collected by a soft brush, and weighed by a ten-thousand-minute precision balance to obtain dust adsorption capacity (mg);
2. uniformly placing the solar cell panel prepared in each embodiment and the comparative example and the solar cell panel subjected to photoaging in an open area, and spraying exhaust gas of a diesel engine which stably works on the solar cell panel for 10min each time, once a day and 7 days; finally, observing the oil stain condition on the surface of the solar cell panel;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides a self-cleaning solar cell panel which characterized in that: the surface of the self-cleaning solar cell panel is coated with a self-cleaning coating, and the self-cleaning coating comprises the following components:
5 to 8 portions of colloidal silicon dioxide, 8 to 10 portions of acrylic resin, 1 to 3 portions of fluorine-containing resin, 0.5 to 1 portion of micron-sized titanium-containing solid glass microspheres, 10 to 15 portions of absolute ethyl alcohol and 0.01 to 0.03 portion of organic tin catalyst;
the preparation method of the micron-sized titanium-containing solid glass microspheres comprises the following steps:
(1) Mixing quartz sand or crystal sand with soda ash, calcite and di (triethanolamine) diisopropyl titanate, sintering at 800-900 ℃, then heating to 1300-1500 ℃ for melting, adding a defoaming agent after melting to eliminate bubbles;
the mass ratio of the used raw materials is that the quartz sand or the crystal sand comprises 60-80 parts of soda ash, calcite, di (triethanolamine) diisopropyl titanate and defoaming agent;
(2) Cooling to 1100-1300 ℃, blowing the molten liquid by high-speed airflow, and melting into a spherical shape by a high-pressure torch to prepare spherical glass microspheres;
(3) Cooling the spherical glass microspheres to 70-90 ℃, spraying atomized hydrofluoric acid according to 1-3% of the mass of the spherical glass microspheres to corrode the surfaces of the spherical glass microspheres, reacting for 20-30 min, and heating to 120-130 ℃ to remove the hydrofluoric acid;
(4) Finally, cleaning for 2-3 times by purified water to prepare the micron-sized titanium-containing solid glass microspheres.
2. The self-cleaning solar panel of claim 1, wherein: the colloidal silicon dioxide is MOS-2012 stabilized colloidal silicon dioxide; the acrylic resin is ALMATEX L1057 thermosetting acrylic resin; the fluorine-containing resin is ZX-641; the organic tin catalyst is dibutyltin dilaurate.
3. The self-cleaning solar panel of claim 1, wherein: the defoaming agent in the step (1) is DEFEN DF-3697G.
4. The self-cleaning solar panel of claim 1, wherein: the hydrofluoric acid in the step (3) is 35.35% hydrofluoric acid.
5. The self-cleaning solar panel of claim 1, wherein: the grain size of the micron-sized titanium-containing solid glass microspheres is 10-15 mu m.
6. The self-cleaning solar panel as recited in any one of claims 1-5, wherein: the coating process of the self-cleaning coating comprises the following steps: uniformly mixing colloidal silicon dioxide, acrylic resin, fluorine-containing resin, micron-sized titanium-containing solid glass microspheres, absolute ethyl alcohol and an organic tin catalyst, then coating the mixture on a solar panel, controlling the coating thickness to be 15-20 microns, after coating, heating to 100-110 ℃ to remove a solvent, then heating to 150-160 ℃ in a rapid heating mode at a speed of 20-30 ℃/min, and then preserving heat and curing for 20-30 min.
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| JP3600855B2 (en) * | 2001-01-31 | 2004-12-15 | 独立行政法人産業技術総合研究所 | Method for producing fine hollow glass spheres coated with titanium oxide |
| WO2010069997A1 (en) * | 2008-12-16 | 2010-06-24 | Dyrup A/S | Self-cleaning coating composition |
| CN102585635B (en) * | 2012-01-12 | 2014-12-10 | 中山大桥化工集团有限公司 | Anti-icing paint and preparation method thereof |
| CN103601387B (en) * | 2013-11-18 | 2015-07-22 | 天津大学 | Method of preparing heat insulating material by modifying surfaces of hollow glass beads |
| CN104629554A (en) * | 2015-01-19 | 2015-05-20 | 安徽嘉年华漆业有限公司 | Special modified acrylic resin paint for building external walls |
| CN111019456A (en) * | 2019-11-27 | 2020-04-17 | 昆明理工大电力工程技术有限公司 | Durable super-hydrophobic three-proofing coating as well as preparation method and use method thereof |
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