CN113948587B - Solar cell backboard, preparation method thereof and solar cell module - Google Patents
Solar cell backboard, preparation method thereof and solar cell module Download PDFInfo
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- CN113948587B CN113948587B CN202111192626.3A CN202111192626A CN113948587B CN 113948587 B CN113948587 B CN 113948587B CN 202111192626 A CN202111192626 A CN 202111192626A CN 113948587 B CN113948587 B CN 113948587B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000010410 layer Substances 0.000 claims abstract description 30
- 239000000805 composite resin Substances 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000011258 core-shell material Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 5
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 15
- 239000004925 Acrylic resin Substances 0.000 claims description 9
- 229920000178 Acrylic resin Polymers 0.000 claims description 9
- 239000012948 isocyanate Substances 0.000 claims description 9
- 150000002513 isocyanates Chemical class 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000003851 corona treatment Methods 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- UYAAVKFHBMJOJZ-UHFFFAOYSA-N diimidazo[1,3-b:1',3'-e]pyrazine-5,10-dione Chemical compound O=C1C2=CN=CN2C(=O)C2=CN=CN12 UYAAVKFHBMJOJZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 6
- 229940116423 propylene glycol diacetate Drugs 0.000 claims description 6
- -1 xylene ketone Chemical class 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 5
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 4
- 239000002313 adhesive film Substances 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 239000008096 xylene Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 230000020477 pH reduction Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-BJUDXGSMSA-N titanium-47 Chemical group [47Ti] RTAQQCXQSZGOHL-BJUDXGSMSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention belongs to the technical field of solar cell back plates, and particularly relates to a solar cell back plate, a preparation method thereof and a solar cell module. The solar cell backboard provided by the invention comprises the following components: a substrate layer; and an organic-inorganic composite resin coating layer applied to a surface of the base material layer; wherein the organic-inorganic composite resin in the organic-inorganic composite resin coating is a core-shell structure formed by wrapping titanium dioxide with organic silicon. According to the solar cell backboard, the surface of the substrate layer is coated with the organic-inorganic composite resin coating which is formed by coating the organic silicon on the outer layer of titanium dioxide to form the core-shell structure, so that the water resistance and weather resistance of the solar cell backboard are improved.
Description
Technical Field
The invention belongs to the technical field of solar cell back plates, and particularly relates to a solar cell back plate, a preparation method thereof and a solar cell module.
Background
76% of China is full of illumination in the territory, and the light energy resource is distributed uniformly; compared with hydropower, wind power, nuclear power and the like, the solar power generation has no emission and noise, the application technology is mature, and the solar power generation system is safe and reliable; besides large-scale grid-connected power generation and off-grid application, solar energy can be stored in various modes such as water pumping, superconduction, storage batteries, hydrogen production and the like so as to meet the requirement of stable energy in the future of China. Solar energy is the cleanest, safe and reliable energy source in the future, developed countries are planning the development and utilization of solar energy as the main content of the energy revolution for a long time, and the photovoltaic industry is becoming an industry which is further explosively developed after the IT and microelectronic industries internationally.
The solar cell backboard is an important component part in the photovoltaic module and is used for resisting damage to the module caused by severe environments and ensuring the service life of the module. The solar cell panel is positioned on the back of the solar cell panel, protects and supports the cell, and has reliable insulativity, water resistance and aging resistance.
Disclosure of Invention
The invention provides a solar cell backboard, a preparation method thereof and a solar cell module.
In order to solve the above technical problems, the present invention provides a solar cell back sheet, including: a substrate layer; and an organic-inorganic composite resin coating layer applied to a surface of the base material layer; wherein the organic-inorganic composite resin in the organic-inorganic composite resin coating is a core-shell structure formed by wrapping titanium dioxide with organic silicon.
In yet another aspect, the present invention also provides a method for manufacturing a solar cell back plate, including the steps of: acidizing the nano titanium dioxide to obtain acidized nano titanium dioxide; mixing acrylic resin, acidified nano titanium dioxide, a leveling agent, a defoaming agent and a thickening agent to prepare a solution A; mixing an organosilicon compound and isocyanate, and then adjusting the pH value to be not more than 6.5 to prepare a solution B; and mixing the solution A and the solution B, and coating the mixture on the surface of the substrate layer to obtain the solar cell backboard.
In a third aspect, the present invention also provides a solar cell module, comprising: a battery sheet; and the battery piece is suitable for being attached to the surface of the solar battery backboard through an adhesive film.
The solar cell backboard has the beneficial effects that the water resistance and weather resistance of the solar cell backboard are improved by coating the surface of the substrate layer with the organic-inorganic composite resin coating which is formed by wrapping the outer layer of titanium dioxide with organic silicon to form a core-shell structure.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a solar cell back sheet of the present invention.
In the figure:
1-a substrate layer; 2-organic-inorganic composite resin coating.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are 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.
In order to improve the weather resistance of the solar cell back sheet, a fluorine-containing material is often coated on the outer layer of the back sheet, wherein PVDF (polyvinylidene fluoride) and THV (tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride polymers) are common fluorine-containing materials, but PVDF is difficult to form a film, and the adhesive force of the THV is poor.
In order to solve the above technical problems, as shown in fig. 1, the present invention provides a solar cell back plate, including: a base material layer 1; and an organic-inorganic composite resin coating layer 2 applied to the surface of the base material layer 1; wherein the organic-inorganic composite resin in the organic-inorganic composite resin coating 2 has a core-shell structure formed by coating titanium dioxide with organic silicon.
Specifically, the surface of the substrate layer 1 is coated with the organic-inorganic composite resin coating 2 which is formed into a core-shell structure by wrapping the outer layer of titanium dioxide with organic silicon, so that the water resistance and weather resistance of the solar cell backboard are improved.
Wherein, optionally, the thickness of the substrate layer 1 can be, but is not limited to, 150-300 μm, such as 150 μm, 180 μm, 230 μm, 280 μm; the thickness of the organic-inorganic composite resin coating layer 2 is 10 to 30 μm, such as 10 μm, 12 μm, 19 μm, 24 μm, 27 μm.
In yet another aspect, the present invention also provides a method for manufacturing a solar cell back plate, including the steps of: acidizing the nano titanium dioxide to obtain acidized nano titanium dioxide; mixing acrylic resin, acidified nano titanium dioxide, a leveling agent, a defoaming agent and a thickening agent to prepare a solution A; mixing an organosilicon compound and isocyanate, and then adjusting the pH value to be not more than 6.5 to prepare a solution B; and mixing the solution A and the solution B, and coating the mixture on the surface of the substrate layer to obtain the solar cell backboard.
Specifically, putting nano titanium dioxide into a three-neck flask, adding mixed acid into the three-neck flask, uniformly mixing and stirring, refluxing under the constant temperature condition for acidizing reaction, filtering and washing to be neutral after the reaction is finished, and drying to obtain the acidized nano titanium oxide; and (3) coating the organic-inorganic composite resin of the core-shell structure formed by coating titanium dioxide with organic silicon after the solution A and the solution B are mixed on the surface of a substrate to prepare the solar cell backboard with high water resistance and weather resistance.
Wherein the mixed acid can be, but is not limited to, a mixture comprising any two of sulfuric acid, nitric acid and hydrochloric acid; the temperature of the reflux may be, but is not limited to, 60 to 90 ℃.
Wherein, optionally, the mass parts of each component in the solution a can be, but are not limited to: acrylic resin: 45-49 parts; nano titanium dioxide: 0.1 to 0.8 part; leveling agent: 0.3 to 1 part; defoaming agent: 0.3 to 1 part; and (3) a thickening agent: 0.2-5 parts; ultraviolet light absorber: 0.1 to 1 part.
Optionally, the parts by weight of each component in the solution B may be, but are not limited to: organosilicon compound: 86-90 parts; isocyanate: 5-10 parts.
Optionally, when the solution A and the solution B are mixed, the mass parts of the solution A and the solution B are (0.7-1) part and 1 part respectively.
Wherein, optionally, the leveling agent can include, but is not limited to: one or more of AFCONA3277, 3570, 3670, 3700, 3730, 3750, 3755, 3758, 3770; the defoamer may include, but is not limited to: one or more of AFCONA2022, 2023, 2025, 2028, 2035; the thickener may include, but is not limited to, one or more of polyurethane or cellulose; specifically, the method comprises the following steps: at least one of BYK410, RM-12W, TT935, RM-8W.
Alternatively, the pH of the solution B may be adjusted by, but not limited to, adding a pH adjuster, and the pH adjuster may be, but not limited to, acetic acid or citric acid.
Alternatively, the organosilicon compound may be, but is not limited to, a polysiloxane; the solvent of the B solution may include, but is not limited to: at least one of propylene glycol diacetate and propylene glycol methyl ether acetate.
Optionally, the substrate layer 1 is coated after corona treatment.
In still another aspect, the present invention also provides a solar cell module including: a battery sheet; and the battery piece is suitable for being attached to the surface of the solar battery backboard through an adhesive film.
Example 1
And placing 0.3 part by mass of nano titanium dioxide into a three-neck flask, adding 40mL of 2mol/L nitric acid and 60mL of 2mol/L sulfuric acid into the three-neck flask, uniformly mixing and stirring, refluxing at 80 ℃ for 2 hours for acidification reaction, filtering and washing to be neutral after the reaction is finished, and drying to obtain the acidified nano titanium dioxide.
The acid nano titanium dioxide was mixed with 46 parts by mass of acrylic resin, 0.35 parts by mass 3570, 0.35 parts by mass 2025, and 0.2 parts by mass BYK410, and stirred under shearing at 800rpm until the mixture was complete, to prepare a solution a.
88 parts by mass of polysiloxane, 5.5 parts by mass of isocyanate, 0.35 part by mass of citric acid and 0.35 part by mass of propylene glycol diacetate were mixed and stirred uniformly to prepare a solution B.
And mixing 80 parts by mass of the solution A and 100 parts by mass of the solution B, coating the mixture on the surface of the PET subjected to corona treatment, wherein the thickness of the PET substrate layer is 285 mu m, and drying at 80 ℃ to obtain the transparent solar back plate with the organic-inorganic composite resin coating.
Example 2
And placing 0.1 part by mass of nano titanium dioxide into a three-neck flask, adding 40mL of 2mol/L nitric acid and 60mL of 2mol/L sulfuric acid into the three-neck flask, uniformly mixing and stirring, refluxing at 80 ℃ for 2 hours for acidification reaction, filtering and washing to be neutral after the reaction is finished, and drying to obtain the acidified nano titanium dioxide.
The acid nano titanium dioxide, 45 parts by mass of acrylic resin, 0.55 parts by mass of 3670, 1.00 parts by mass of 2028 and 5.0 parts by mass of RM-12W were mixed, and stirred under shearing at 800rpm until the mixture was complete, to prepare a solution A.
86 parts by mass of polysiloxane, 6 parts by mass of isocyanate, 1 part by mass of citric acid and 3 parts by mass of propylene glycol diacetate were mixed and stirred uniformly to prepare a solution B.
And mixing 70 parts by mass of the solution A and 100 parts by mass of the solution B, coating the mixture on the surface of the PET subjected to corona treatment, wherein the thickness of the PET substrate layer is 285 mu m, and drying at 80 ℃ to obtain the transparent solar back plate with the organic-inorganic composite resin coating.
Example 3
And placing 0.8 part by mass of nano titanium dioxide into a three-neck flask, adding 40mL of 2mol/L nitric acid and 60mL of 2mol/L sulfuric acid into the three-neck flask, uniformly mixing and stirring, refluxing at 80 ℃ for 2 hours for acidification reaction, filtering and washing to be neutral after the reaction is finished, and drying to obtain the acidified nano titanium dioxide.
The acid nano titania was mixed with 49 parts by mass of an acrylic resin, 1.00 parts by mass of 3770, 0.75 parts by mass of 2028, and 3.0 parts by mass of TT935, and stirred under shear at 800rpm until the mixture was complete, to prepare a solution A.
After 90 parts by mass of polysiloxane, 10 parts by mass of isocyanate, 0.52 part by mass of citric acid and 0.85 part by mass of propylene glycol diacetate were mixed, the mixture was stirred uniformly to prepare a solution B.
And mixing 90 parts by mass of the solution A and 100 parts by mass of the solution B, coating the mixture on the surface of the PET subjected to corona treatment, wherein the thickness of the PET substrate layer is 285 mu m, and drying at 80 ℃ to obtain the transparent solar back plate with the organic-inorganic composite resin coating.
Example 4
And placing 0.5 part by mass of nano titanium dioxide into a three-neck flask, adding 40mL of 2mol/L nitric acid and 60mL of 2mol/L sulfuric acid into the three-neck flask, uniformly mixing and stirring, refluxing at 80 ℃ for 2 hours for acidification reaction, filtering and washing to be neutral after the reaction is finished, and drying to obtain the acidified nano titanium dioxide.
The acid nano titanium dioxide and 47 parts by mass of acrylic resin, 0.8 part by mass 3758, 0.6 part by mass 2035 and 1.8 parts by mass of RM-8W were mixed, and stirred under shearing at 800rpm until the mixture was complete, to prepare a solution A.
After 87 parts by mass of polysiloxane, 7.5 parts by mass of isocyanate, 0.73 part by mass of citric acid and 2.15 parts by mass of propylene glycol diacetate were mixed, the mixture was stirred uniformly to prepare a solution B.
And mixing 100 parts by mass of the solution A and 100 parts by mass of the solution B, coating the mixture on the surface of the PET subjected to corona treatment, wherein the thickness of the PET substrate layer is 285 mu m, and drying at 80 ℃ to obtain the transparent solar back plate with the organic-inorganic composite resin coating.
Comparative example 1
Mixing PVDF resin, 0.6 part by mass of ultraviolet absorber 2-hydroxy-4-n-octoxybenzophenone and 0.4 part by mass of light stabilizer hexamethylphosphoric triamide to prepare weather-resistant coating liquid;
and (3) coating the weather-resistant coating liquid on the surface of the PET subjected to corona treatment, wherein the thickness of the PET substrate layer is 285 mu m, and drying at 95 ℃ to obtain the transparent solar backboard with the organic-inorganic composite resin coating.
The raw materials in each example and comparative example are summarized in table 1.
Table 1 raw material composition in each example and comparative example
The solar cell back sheets prepared in each example and each comparative example were subjected to the related properties, and the test data are summarized in table 2.
Table 2 performance data of the back sheet produced in each example and comparative example
As can be seen from the data in table 2, the solar cell back sheets prepared in each example had better water blocking and weather resistance than the solar cell back sheets prepared in each comparative example.
In summary, the invention provides a solar cell back sheet, which improves the water resistance and weather resistance of the solar cell back sheet by coating the surface of the substrate layer 1 with the organic-inorganic composite resin coating 2 which is formed into a core-shell structure by wrapping the outer layer of titanium dioxide with organic silicon.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. A back sheet for a solar cell,
characterized by comprising the following steps:
a substrate layer; and
an organic-inorganic composite resin coating layer applied to a surface of the base material layer; wherein the method comprises the steps of
The organic-inorganic composite resin in the organic-inorganic composite resin coating has a core-shell structure formed by wrapping titanium dioxide with organic silicon;
the preparation method of the solar cell backboard comprises the following steps:
acidizing the nano titanium dioxide to obtain acidized nano titanium dioxide;
mixing acrylic resin, acidified nano titanium dioxide, a leveling agent, a defoaming agent, a thickening agent and an ultraviolet light absorbent to prepare a solution A;
mixing an organosilicon compound and isocyanate, and then adjusting the pH value to be not more than 6.5 to prepare a solution B;
mixing the solution A and the solution B, and coating the mixture on the surface of a substrate layer to prepare a solar cell backboard;
the solution A comprises the following components in parts by mass:
acrylic resin: 45-49 parts;
nano titanium dioxide: 0.1 to 0.8 part;
leveling agent: 0.3 to 1 part;
defoaming agent: 0.3 to 1 part;
and (3) a thickening agent: 0.2-5 parts;
ultraviolet light absorber: 0.1 to 1 part;
the solution B comprises the following components in parts by mass:
organosilicon compound: 86-90 parts;
isocyanate: 5-10 parts.
2. The solar cell back sheet according to claim 1, wherein,
the thickness of the substrate layer is 150-300 mu m;
the thickness of the organic-inorganic composite resin coating is 10-30 mu m.
3. The solar cell back sheet according to claim 1, wherein,
when the solution A and the solution B are mixed, the mass parts of the solution A and the solution B are respectively (0.7-1) and 1.
4. The solar cell back sheet according to claim 1, wherein,
the leveling agent comprises: one or more of AFCONA3277, 3570, 3670, 3700, 3730, 3750, 3755, 3758, 3770;
the defoamer comprises: one or more of AFCONA2022, 2023, 2025, 2028, 2035;
the ultraviolet light absorber is a xylene ketone ultraviolet light absorber;
the thickener comprises one or more of polyurethane or cellulose.
5. The solar cell back sheet according to claim 1, wherein,
the solvent of the solution B comprises: at least one of propylene glycol diacetate and propylene glycol methyl ether acetate.
6. The solar cell back sheet according to claim 1, wherein,
and (3) carrying out corona treatment on the substrate layer, and then coating.
7. A solar cell module, comprising:
a battery sheet; and
the battery piece is suitable for being attached to the surface of the solar battery backboard according to claim 1 through an adhesive film.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532428A (en) * | 2011-12-31 | 2012-07-04 | 浙江大学 | Nano-grade TiO2/silicone-acrylate core-shell composite emulsion and preparation method thereof |
| CN102582175A (en) * | 2011-09-30 | 2012-07-18 | 长兴化学工业股份有限公司 | Encapsulating material for solar cell module and use thereof |
| CN105789358A (en) * | 2016-04-29 | 2016-07-20 | 乐凯胶片股份有限公司 | Solar cell backboard |
| CN206685398U (en) * | 2016-11-16 | 2017-11-28 | 浙江晶科能源有限公司 | A kind of photovoltaic module and its automatically cleaning backboard |
-
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- 2021-10-13 CN CN202111192626.3A patent/CN113948587B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582175A (en) * | 2011-09-30 | 2012-07-18 | 长兴化学工业股份有限公司 | Encapsulating material for solar cell module and use thereof |
| CN102532428A (en) * | 2011-12-31 | 2012-07-04 | 浙江大学 | Nano-grade TiO2/silicone-acrylate core-shell composite emulsion and preparation method thereof |
| CN105789358A (en) * | 2016-04-29 | 2016-07-20 | 乐凯胶片股份有限公司 | Solar cell backboard |
| CN206685398U (en) * | 2016-11-16 | 2017-11-28 | 浙江晶科能源有限公司 | A kind of photovoltaic module and its automatically cleaning backboard |
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