CN117720281A - Additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof - Google Patents
Additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof Download PDFInfo
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- CN117720281A CN117720281A CN202311741297.2A CN202311741297A CN117720281A CN 117720281 A CN117720281 A CN 117720281A CN 202311741297 A CN202311741297 A CN 202311741297A CN 117720281 A CN117720281 A CN 117720281A
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- photovoltaic glass
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- 239000000654 additive Substances 0.000 title claims abstract description 93
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- 238000005530 etching Methods 0.000 claims abstract description 69
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical group [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 6
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 4
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 claims description 4
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 4
- IVKNZCBNXPYYKL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 IVKNZCBNXPYYKL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000688 Poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] Polymers 0.000 claims description 3
- FDPIMTJIUBPUKL-UHFFFAOYSA-N dimethylacetone Natural products CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 3
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 14
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention provides an additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof, wherein the additive comprises an etching additive A and a loading additive B which are matched for use, and the etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 10 percent of loading agent and the balance of water; the loading additive B comprises the following components in percentage by mass: 3-10% of metal oxide, 1-2% of dispersing agent and the balance of water. The invention provides an additive with simple components and low cost, the etching additive A and the loading additive B are matched to be used, so that metal oxide can be loaded on the surface of photovoltaic glass to form irregular plane with concave-convex fluctuation, the light reflectivity is reduced, and meanwhile, the loaded metal oxide can improve ultraviolet transmission light, so that the ultraviolet light transmittance of the photovoltaic glass can be increased by about 4%.
Description
Technical Field
The invention relates to the technical field of photovoltaic glass, in particular to an additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof.
Background
In recent years, with the rapid development of the photovoltaic industry, the share of the photovoltaic glass in China in the global market is kept above 90%, and the photovoltaic glass is the biggest photovoltaic glass production country in the world. Along with the development of photovoltaic industry technology and the continuous expansion of enterprise productivity, the photovoltaic industry in China is expected to keep on a global leading position in the future. Photovoltaic glass is generally used as a packaging panel of a photovoltaic module, and is one of core auxiliary materials of the photovoltaic module. The light transmittance of a photovoltaic module refers to the proportion of light that can pass through the module and be converted into electrical energy after shining from the sun onto the surface of the photovoltaic module. The higher the light transmittance, the more light energy the solar panel can convert, and therefore light transmittance is an important parameter of the solar panel. The photovoltaic glass is taken as an important component of the photovoltaic cell assembly package, is directly applied to a solar photovoltaic power generation assembly, and the light transmittance of the photovoltaic glass is an important factor influencing the conversion efficiency of the solar photovoltaic cell.
At present, in industrial production, common methods for etching glass mainly comprise a chemical etching method and a physical processing method:
wherein: (1) chemical etching method: with the development of glass processing and deep processing industry, the most mainly adopted etchant in the chemical etching method is hydrofluoric acid; however, the use of hydrofluoric acid not only increases the operational risk, but also causes environmental pollution. It is well known that ingestion of about 1.5g of hydrofluoric acid by the human body can lead to death. Inhalation of high concentration hydrofluoric acid mist can also cause bronchitis and hemorrhagic pulmonary edema. Hydrofluoric acid can also be absorbed transdermally and cause severe poisoning, potentially fatal when exposed to hydrofluoric acid at a concentration of 50ppm for several minutes. Therefore, the use of hydrofluoric acid is eliminated in chemical etching. (2) physical laser etching method: the laser processing of glass has the advantages of large investment, high cost, higher requirements on the shape and strength of the glass, complex process, high breakage rate, large energy consumption, difficult control and production process limited by raw materials, production equipment, production technology and the like, thereby greatly limiting the development of the photovoltaic glass.
Disclosure of Invention
Aiming at the problem of low ultraviolet transmittance in the existing glass etching method, the invention develops the additive for preparing the photovoltaic glass with high ultraviolet transmittance, and can effectively improve the ultraviolet transmittance of the photovoltaic glass, thereby being beneficial to improving the power of a photovoltaic module.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the invention provides an additive for improving ultraviolet light transmittance of photovoltaic glass, the additive comprises an etching additive A and a loading additive B which are matched for use, wherein the etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 10 percent of loading agent and the balance of water; the loading additive B comprises the following components in percentage by mass: 3-10% of metal oxide, 1-2% of dispersing agent and the balance of water.
Preferably, the organic solvent is one or more of N, N-dimethylformamide, ethanol, dimethyl sulfoxide, acetone and tetrahydrofuran.
Preferably, the loading agent is a compound comprising a siloxy structure.
More preferably, the loading agent is one or more of isobutyl triethoxysilane, diphenyl dimethoxy silane, vinyl trimethoxy silane, gamma-aminopropyl triethoxysilane and gamma-mercaptopropyl trimethoxy silane.
Preferably, the metal oxide is a metal oxide capable of increasing ultraviolet light transmittance.
More preferably, the metal oxide is one or more of aluminum oxide, calcium oxide, titanium oxide, zirconium oxide and cerium oxide.
Preferably, the dispersant is a surfactant capable of acting with the surface of the metal oxide.
More preferably, the dispersing agent is selected from one or more of polyoxyethylene siloxane, polyacrylamide, polyquaternium-11, sodium stearate, sodium dodecyl sulfonate and OP-10.
In a second aspect, the present invention further provides a method of increasing ultraviolet light transmittance of photovoltaic glass, the method comprising the steps of:
s1, preparing alkali liquor for etching photovoltaic glass, wherein the alkali liquor is potassium hydroxide solution with the concentration of 3.0-wt-5.0 wt%;
s2, mixing an etching additive A with the alkali liquor to obtain a glass etching liquid, wherein the etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 10 percent of loading agent and the balance of water, and the volume ratio of the etching additive A to the alkali liquor is (1 to 5): 100;
s3, placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching for 30-60 minutes at 80-90 ℃, and then cleaning the surface with deionized water to finish etching the photovoltaic glass;
s4, placing the photovoltaic glass in a loading additive B, keeping the photovoltaic glass in a vertical state, loading the photovoltaic glass at 75-95 ℃ for 20-50 minutes, and then cleaning the surface with deionized water to finish the loading of the photovoltaic glass, wherein the loading additive B comprises the following components in percentage by mass: 3-10% of metal oxide, 1-2% of dispersing agent and the balance of water.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an additive with simple components and low cost, the etching additive A and the loading additive B are matched to be used, so that metal oxide can be loaded on the surface of photovoltaic glass to form irregular plane with concave-convex fluctuation, the light reflectivity is reduced, and meanwhile, the loaded metal oxide can improve ultraviolet transmission light, so that the ultraviolet light transmittance of the photovoltaic glass can be increased by about 4%.
The supporting agent component in the etching additive A provided by the invention is one of the keys, and can react with silicon dioxide on one hand and be connected to the layered structure of the photovoltaic glass through chemical bonds; on the other hand, the loading agent can help the metal oxide in the loading additive B to be more uniformly and stably loaded on the photovoltaic glass, and the stability of the structure is improved.
The addition of the metal oxide in the load additive B can improve the transmittance of the photovoltaic glass to ultraviolet light, so that the energy use efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a microstructure of a photovoltaic glass surface etched according to example 1 of this invention;
fig. 2 is a graph showing the result of the transmittance test of photovoltaic glass etched by the embodiment of example 1 and comparative example 1 of the present invention.
Description of the embodiments
In order to solve the problem that the power of a photovoltaic module is limited due to the fact that the ultraviolet transmittance of the existing photovoltaic glass is low and the light energy cannot be fully utilized, the inventor of the invention develops an additive for preparing the photovoltaic glass with high ultraviolet transmittance.
In one exemplary embodiment, the present invention provides an additive that can increase the ultraviolet light transmittance of photovoltaic glass, comprising an etching additive a and a loading additive B.
The etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 3 percent of loading agent and the balance of water.
Organic solvents are used to slow the hydrolysis of the loading agent and the self-polymerization of the hydrolysis products, which need to be miscible with water, while the solubility of the loading agent in the organic solvent needs to be better than water. In a preferred embodiment, the organic solvent is selected from one or more of N, N-dimethylformamide, ethanol, dimethyl sulfoxide, acetone and tetrahydrofuran. .
The loading agent can react with silicon dioxide and is connected to the layered structure of the photovoltaic glass through chemical bonds, so that the metal oxide in the loading additive B can be supported on the photovoltaic glass more uniformly and stably, and the stability of the structure is improved. The loading agent is preferably selected to be a compound containing a siloxy structure.
In a more preferred embodiment, the loading agent is selected from one or more of isobutyl triethoxysilane, diphenyl dimethoxysilane, vinyl trimethoxysilane, gamma-aminopropyl triethoxysilane, gamma-mercaptopropyl trimethoxysilane.
The load additive B comprises the following components in percentage by mass: 3% -10% of metal oxide, 1% -5% of dispersing agent and the balance of water.
The metal oxide can increase the transmittance of ultraviolet light. The selected metal oxide is loaded on the surface of the glass, and the ultraviolet transmittance of the glass is changed by changing the combination energy of oxygen atoms in the silicon dioxide. To improve ultraviolet transmittance, the metal oxide is selected to increase the binding energy of oxygen atoms in the glass.
In a preferred embodiment, the metal oxide is one or more of aluminum oxide, calcium oxide, titanium dioxide, zirconium oxide and cerium oxide.
The dispersing agent has the function of reducing the surface tension, and the dispersing agent is preferably capable of acting on the surface of the metal oxide, so that the surface tension between solid and liquid is reduced mainly by acting on the surface of the metal oxide, and the agglomeration of the metal oxide is prevented.
In a preferred embodiment, the dispersing agent is selected from one or more of polyoxyethylene siloxane, polyacrylamide, polyquaternium-11, sodium stearate, sodium dodecyl sulfonate and OP-10.
In another exemplary embodiment, the present invention provides a method of using the additive as described above, comprising the steps of:
1. preparing alkali liquor for etching photovoltaic glass, wherein the alkali liquor is potassium hydroxide solution with the concentration of 3.0-wt-5.0 wt%;
2. mixing the etching additive A with the alkali liquor, wherein the volume ratio of the etching additive A to the alkali liquor is (1-5): 100, obtaining glass etching liquid;
3. placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching for 30-60 minutes at 80-90 ℃, and then cleaning the surface with deionized water to finish the etching of the photovoltaic glass;
4. and placing the photovoltaic glass in the loading additive B, keeping the photovoltaic glass in a vertical state, loading the photovoltaic glass at 75-95 ℃ for 20-50 minutes, and then cleaning the surface with deionized water to finish the loading of the photovoltaic glass.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
And preparing an additive capable of improving ultraviolet light transmittance of the photovoltaic glass, wherein the additive comprises an etching additive A and a loading additive B.
Etching additive a example 1 comprises the following components in mass fraction: 1wt% of N, N-dimethylformamide (organic solvent), 1wt% of gamma-aminopropyl triethoxysilane (loading agent) and the balance of water (98 wt%).
Load additive B example 1 comprises the following components in mass fraction: 1wt% of zirconia (metal oxide), 4wt% of ceria (metal oxide), 3wt% of polyoxyethylene siloxane (dispersant) and the balance of water (92 wt%)
The using method of the additive comprises the following specific steps:
1. preparing 1000ml of alkali liquor for photovoltaic glass etching, wherein the alkali liquor is potassium hydroxide solution with the concentration of 5.0 wt%;
2. uniformly mixing 10ml of the etching additive A prepared as described above in example 1 with 1000ml of alkali liquor to obtain glass etching liquid;
3. placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching at 90 ℃ for 60 minutes, and cleaning the residual salt on the surface by deionized water to finish the etching of the photovoltaic glass;
4. and (3) placing the photovoltaic glass in the loading additive B in the embodiment 1, keeping the photovoltaic glass in a vertical state, loading at 75 ℃ for 30 minutes, and cleaning the residual salt on the surface by deionized water to finish the loading of the photovoltaic glass.
Example 2
And preparing an additive capable of improving ultraviolet light transmittance of the photovoltaic glass, wherein the additive comprises an etching additive A and a loading additive B.
The etching additive A embodiment 2 comprises the following components in percentage by mass: ethanol 1.5wt% (organic solvent), dimethyl sulfoxide 1wt% (organic solvent), isobutyl triethoxysilane 0.5wt% (loading agent), diphenyldimethoxysilane 1.5wt% (loading agent), and the balance water (95.5 wt%).
The loading additive B example 2 comprises the following components in percentage by mass: 6wt% of cerium oxide (metal oxide), 1wt% of polyacrylamide (dispersing agent), 111wt% of polyquaternium (dispersing agent) and the balance of water (92 wt%)
The using method of the additive comprises the following specific steps:
1. preparing 1000ml of alkali liquor for photovoltaic glass etching, wherein the alkali liquor is potassium hydroxide solution with the concentration of 5.0 wt%;
2. uniformly mixing 10ml of the etching additive A prepared as described above in example 2 with 1000ml of alkali liquor to obtain glass etching liquid;
3. placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching at 85 ℃ for 60 minutes, and cleaning the residual salt on the surface by deionized water to finish the etching of the photovoltaic glass;
4. and (3) placing the photovoltaic glass in the loading additive B in the embodiment 2, keeping the photovoltaic glass in a vertical state, loading at 80 ℃ for 35 minutes, and cleaning the residual salt on the surface by deionized water to finish the loading of the photovoltaic glass.
Example 3
And preparing an additive capable of improving ultraviolet light transmittance of the photovoltaic glass, wherein the additive comprises an etching additive A and a loading additive B.
The etching additive A embodiment 3 comprises the following components in percentage by mass: acetone 2wt% (organic solvent), tetrahydrofuran 1wt%, vinyltrimethoxysilane 2wt% (loading agent), gamma-mercaptopropyl trimethoxysilane 8wt% (loading agent) and the balance water (87 wt%).
The loading additive B example 3 comprises the following components in percentage by mass: 3wt% of calcium oxide (metal oxide), 4wt% of cerium oxide (metal oxide), 1wt% of sodium stearate (dispersing agent), 1wt% of sodium dodecyl sulfate (dispersing agent), OP-101wt% (dispersing agent) and the balance of water (90 wt%).
The using method of the additive comprises the following specific steps:
1. preparing 1000ml of alkali liquor for photovoltaic glass etching, wherein the alkali liquor is potassium hydroxide solution with the concentration of 5.0 wt%;
2. uniformly mixing 10ml of the etching additive A prepared as described above in example 3 with 1000ml of alkali liquor to obtain glass etching liquid;
3. placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching at 80 ℃ for 50 minutes, and cleaning the residual salt on the surface by deionized water to finish the etching of the photovoltaic glass;
4. and (3) placing the photovoltaic glass in the loading additive B in the embodiment 3, keeping the photovoltaic glass in a vertical state, loading at 75 ℃ for 20 minutes, and cleaning the residual salt on the surface by deionized water to finish the loading of the photovoltaic glass.
Comparative example 1
Providing an etching additive A, wherein the etching additive A comprises the following components in percentage by mass: 1wt% of N, N-dimethylformamide (organic solvent) and the balance of water (99 wt%).
Providing a loading additive B, wherein the loading additive B comprises the following components in percentage by mass: 3% of calcium oxide (metal oxide), 4% of cerium oxide (metal oxide), 3% of polyoxyethylene siloxane (dispersing agent) and the balance of water (90 wt%).
The using method of the additive comprises the following specific steps:
1. preparing 1000ml of alkali liquor for photovoltaic glass etching, wherein the alkali liquor is potassium hydroxide solution with the concentration of 5.0 wt%;
2. uniformly mixing 10ml of the etching additive A prepared in the embodiment 1 and 1000ml of alkali liquor to obtain glass etching liquid;
3. placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching at 90 ℃ for 60 minutes, and cleaning the residual salt on the surface by deionized water to finish the etching of the photovoltaic glass;
4. and (3) placing the photovoltaic glass in the comparative example 1 of the loading additive B, keeping the photovoltaic glass in a vertical state, loading the photovoltaic glass at 75 ℃ for 30 minutes, and cleaning the residual salt on the surface by deionized water to finish the loading of the photovoltaic glass.
The photovoltaic glass not treated by the loading additive, the photovoltaic glass treated in the example 1 and the photovoltaic glass treated in the comparative example 1 were selected for light transmittance test, and the test results show that: after the loading agent in example 1 was removed, the average transmittance of the photovoltaic glass was not improved as in example 1 by etching at 90 ℃ for 60 minutes.
Compared with the prior art, the loading agent can effectively increase the light transmittance of etched glass in the ultraviolet region, and has remarkable effect.
While the foregoing embodiments have been described in terms of exemplary compositions and concepts of the invention, it is to be understood that such compositions are merely illustrative and not restrictive of the scope of the invention, and that other compounds having similar effects as the compositions described in the foregoing description, as well as the corresponding classes of compounds, are intended to be encompassed within the scope of the invention, as defined by the claims.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. An additive for improving ultraviolet light transmittance of photovoltaic glass is characterized by comprising an etching additive A and a loading additive B which are matched, wherein the etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 10 percent of loading agent and the balance of water; the loading additive B comprises the following components in percentage by mass: 3-10% of metal oxide, 1-2% of dispersing agent and the balance of water.
2. The additive for improving ultraviolet light transmittance of photovoltaic glass according to claim 1, wherein the organic solvent is one or more selected from the group consisting of N, N-dimethylformamide, ethanol, dimethyl sulfoxide, acetone, and tetrahydrofuran.
3. The additive for increasing ultraviolet light transmittance of photovoltaic glass according to claim 1, wherein the supporting agent is a compound containing a siloxy structure.
4. The additive for improving ultraviolet light transmittance of photovoltaic glass according to claim 3, wherein the loading agent is one or more selected from isobutyl triethoxysilane, diphenyl dimethoxysilane, vinyl trimethoxysilane, gamma-aminopropyl triethoxysilane and gamma-mercaptopropyl trimethoxysilane.
5. The additive for increasing ultraviolet light transmittance of photovoltaic glass according to claim 1, wherein the metal oxide is a metal oxide capable of increasing ultraviolet light transmittance.
6. The additive for improving ultraviolet light transmittance of photovoltaic glass according to claim 5, wherein the metal oxide is one or more selected from aluminum oxide, calcium oxide, titanium oxide, zirconium oxide and cerium oxide.
7. The additive for increasing ultraviolet light transmittance of photovoltaic glass according to claim 1, wherein the dispersant is a surfactant capable of acting with a metal oxide surface.
8. The additive for improving ultraviolet light transmittance of photovoltaic glass according to claim 7, wherein the dispersing agent is one or more selected from polyoxyethylene siloxane, polyacrylamide, polyquaternium-11, sodium stearate, sodium dodecyl sulfonate and OP-10.
9. A method for improving ultraviolet light transmittance of photovoltaic glass, comprising the steps of:
s1, preparing alkali liquor for etching photovoltaic glass, wherein the alkali liquor is potassium hydroxide solution with the concentration of 3.0-wt-5.0 wt%;
s2, mixing an etching additive A with the alkali liquor to obtain a glass etching liquid, wherein the etching additive A comprises the following components in percentage by mass: 0.5 to 4.0 percent of organic solvent, 1 to 10 percent of loading agent and the balance of water, and the volume ratio of the etching additive A to the alkali liquor is (1 to 5): 100;
s3, placing the photovoltaic glass in the glass etching liquid, keeping the photovoltaic glass in a vertical state, etching for 30-60 minutes at 80-90 ℃, and then cleaning the surface with deionized water to finish etching the photovoltaic glass;
s4, placing the photovoltaic glass in a loading additive B, keeping the photovoltaic glass in a vertical state, loading the photovoltaic glass at 75-95 ℃ for 20-50 minutes, and then cleaning the surface with deionized water to finish the loading of the photovoltaic glass, wherein the loading additive B comprises the following components in percentage by mass: 3-10% of metal oxide, 1-2% of dispersing agent and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311741297.2A CN117720281A (en) | 2023-12-18 | 2023-12-18 | Additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311741297.2A CN117720281A (en) | 2023-12-18 | 2023-12-18 | Additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof |
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| Publication Number | Publication Date |
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| CN117720281A true CN117720281A (en) | 2024-03-19 |
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| CN202311741297.2A Pending CN117720281A (en) | 2023-12-18 | 2023-12-18 | Additive for improving ultraviolet light transmittance of photovoltaic glass and application thereof |
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| Country | Link |
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| CN (1) | CN117720281A (en) |
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2023
- 2023-12-18 CN CN202311741297.2A patent/CN117720281A/en active Pending
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