CN114369408B - Coating, colored film and photovoltaic module - Google Patents
Coating, colored film and photovoltaic module Download PDFInfo
- Publication number
- CN114369408B CN114369408B CN202111529761.2A CN202111529761A CN114369408B CN 114369408 B CN114369408 B CN 114369408B CN 202111529761 A CN202111529761 A CN 202111529761A CN 114369408 B CN114369408 B CN 114369408B
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- Prior art keywords
- coating
- resin
- component
- adhesive film
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000576 coating method Methods 0.000 title claims abstract description 94
- 239000011248 coating agent Substances 0.000 title claims abstract description 86
- 229920005989 resin Polymers 0.000 claims abstract description 76
- 239000011347 resin Substances 0.000 claims abstract description 76
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 51
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 24
- 239000010703 silicon Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 23
- 239000000049 pigment Substances 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 97
- 239000011247 coating layer Substances 0.000 claims description 69
- 239000002313 adhesive film Substances 0.000 claims description 66
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- 229920002050 silicone resin Polymers 0.000 claims description 32
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000002834 transmittance Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 229920005749 polyurethane resin Polymers 0.000 claims description 9
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 9
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 6
- 239000001023 inorganic pigment Substances 0.000 claims description 6
- 239000012860 organic pigment Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000000454 talc Substances 0.000 claims description 6
- 229910052623 talc Inorganic materials 0.000 claims description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- -1 aliphatic isocyanate Chemical class 0.000 claims description 4
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 4
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims description 4
- MFYSUUPKMDJYPF-UHFFFAOYSA-N 2-[(4-methyl-2-nitrophenyl)diazenyl]-3-oxo-n-phenylbutanamide Chemical compound C=1C=CC=CC=1NC(=O)C(C(=O)C)N=NC1=CC=C(C)C=C1[N+]([O-])=O MFYSUUPKMDJYPF-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 3
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- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 125000004494 ethyl ester group Chemical group 0.000 claims description 3
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 3
- 229910021485 fumed silica Inorganic materials 0.000 claims description 3
- 239000001056 green pigment Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 3
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- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- FPSFKBGHBCHTOE-UHFFFAOYSA-N sodium 3-hydroxy-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]naphthalene-1-sulfonic acid Chemical compound [Na+].O=C1C(N=NC=2C3=CC=CC=C3C(=CC=2O)S(O)(=O)=O)C(C)=NN1C1=CC=CC=C1 FPSFKBGHBCHTOE-UHFFFAOYSA-N 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
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- 239000004593 Epoxy Substances 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 22
- 239000000853 adhesive Substances 0.000 abstract description 12
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
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- 229920002799 BoPET Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
Abstract
The invention provides a coating, a color film and a photovoltaic module, wherein the coating consists of a component A and a component B, and the component A comprises the following components: the paint comprises hydroxyl-containing resin, modified organic silicon resin, pigment, filler, solvent and auxiliary agent, wherein the component B is a curing agent; wherein, the content of the resin containing hydroxyl in the component A is 40 to 50 weight percent, the content of the modified organic silicon resin in the component A is 5 to 15 weight percent, the content of the pigment in the component A is 1 to 10 weight percent, the content of the filler in the component A is 0.5 to 1.5 weight percent, the content of the solvent in the component A is 24 to 50 weight percent, and the content of the auxiliary agent in the component A is 0.8 to 1.2 weight percent. Therefore, the paint has various colors and strong adhesive force and cohesive force.
Description
Technical Field
The invention relates to the field of coatings, in particular to a coating, a colored film and a photovoltaic module.
Background
The Building Integrated Photovoltaic (BIPV) technology is a technology for integrating solar Photovoltaic products on buildings. The BIPV photovoltaic module can be applied to application scenes such as photovoltaic roofs and photovoltaic curtain walls.
With the rapid development of the photovoltaic industry in recent years, the aesthetic requirement on building photovoltaic integration is higher, and the photovoltaic curtain wall also realizes the diversification of colors. The method for colorizing the photovoltaic curtain wall in the related art mainly comprises the following steps: plating a color dielectric film on the front glass plate, preparing a color battery, preparing a color PVB (polyvinyl butyral) adhesive film, preparing a color film and the like, wherein the color dielectric film plated on the front glass plate is required to be subjected to a high-temperature process of more than 400 ℃, and the steps of heating, maintaining, annealing and the like are required in actual operation, so that the process is complex and is not beneficial to mass production; the preparation of the color battery is realized by arranging the antireflection layer on the surface of the battery piece and adjusting the antireflection layer to realize different colors, but the antireflection layer has less color effect, and the arrangement of the antireflection layer also easily causes the problem of reduction of the conversion efficiency of the battery; the color PVB adhesive film is prepared by adding pigment into PVB, but the color which is well compatible with the PVB is less, and the color becomes lighter and uneven after lamination, so that larger color difference exists among different areas, and the appearance is poorer; the color film is prepared by mixing the pigment into raw materials of PET or fluorine-containing polymer materials, but the bonding force between the PET and the fluorine-containing polymer materials and a PVB adhesive film layer is poor, and the structural stability is poor.
Thus, coatings, colored films, and photovoltaic modules are still in need of improvement.
Disclosure of Invention
The present application is directed to solving, to some extent, one of the technical problems in the related art.
In one aspect of the invention, the invention provides a coating, which consists of an A component and a B component, wherein the A component comprises: the paint comprises a hydroxyl-containing resin, a modified organic silicon resin, a pigment, a filler, a solvent and an auxiliary agent, wherein the component B is a curing agent; wherein, the content of the resin containing hydroxyl in the component A is 40-50wt%, the content of the modified organic silicon resin in the component A is 5-15wt%, the content of the pigment in the component A is 1-10wt%, the content of the filler in the component A is 0.5-1.5wt%, the content of the solvent in the component A is 24-50wt%, and the content of the auxiliary agent in the component A is 0.8-1.2wt%. Therefore, the paint has various colors and strong adhesive force and cohesive force.
According to an embodiment of the present invention, the hydroxyl group-containing resin does not contain a benzene ring group, and the hydroxyl group-containing resin is at least one of an acrylic resin, a polyurethane resin, and a polyester resin. Thereby, the adhesion and interlayer adhesion of the coating can be further improved.
According to an embodiment of the present invention, the modified silicone resin includes at least one of an epoxy-modified silicone resin, a polyester-modified silicone resin, and an acrylic-modified silicone resin. This further improves the interlayer adhesion of the coating material.
According to an embodiment of the present invention, the pigment includes at least one of an organic pigment and an inorganic pigment. Therefore, the color effect of the coating can be further enriched.
According to an embodiment of the present invention, the organic pigment includes at least one of light-fast yellow, nickel azo yellow, a green pigment, phthalocyanine blue, phthalocyanine green, scarlet powder, and quinacridone red. Therefore, the color effect of the coating can be further enriched.
According to an embodiment of the invention, the inorganic pigment comprises at least one of titanium dioxide, iron yellow, iron red, iron brown, chrome yellow, chrome green, chrome red, ultramarine, iron blue and pearlescent pigments. Therefore, the color effect of the paint can be further enriched.
According to an embodiment of the invention, the filler is not surface treated, the filler comprising at least one of white lead, barium, calcium carbonate, china clay, mica, aluminium hydroxide, talc, silica, fumed silica and talc. Therefore, the performance of the coating can be improved, and the cost can be reduced.
According to an embodiment of the present invention, the solvent is water or an organic solvent including at least one of ethyl ester, butyl ester, propylene glycol methyl ether acetate, toluene, and xylene. This improves the fluidity of the coating material.
According to the embodiment of the invention, the component B is an isocyanate curing agent, the isocyanate curing agent is at least one of aliphatic isocyanate or aliphatic polyisocyanate, and the molar ratio of the hydroxyl group in the component A to the isocyanate group in the curing agent is 0.8-1.6. This can further improve the coating properties.
In yet another aspect of the present invention, the present invention provides a color film comprising: a substrate layer, the substrate layer includes at least one in PET, PC, PE, PP, PVC, PS and ETFE, first dope layer is located a side surface of substrate, the second dope layer is located a side surface that the first dope layer was kept away from to the substrate, wherein, first dope layer and the second dope layer all adopt the coating of any one of claims 1-8 to form. Therefore, the color film has various colors and better structural stability.
According to the embodiment of the invention, the light transmittance of the colored film is more than 80%. Therefore, the application range of the color film can be improved.
In yet another aspect of the present invention, the present invention provides a photovoltaic module comprising: a photovoltaic front plate, a first adhesive film layer, a colored film, a second adhesive film layer, a cell piece, the solar cell comprises a first adhesive film layer, a second adhesive film layer, a cell piece, a third adhesive film layer and a photovoltaic back plate, wherein the cell piece is positioned on one side surface, far away from the color film, of the second adhesive film layer, the third adhesive film layer is positioned on one side surface, far away from the second adhesive film layer, of the cell piece, and the photovoltaic back plate is positioned on one side surface, far away from the cell piece, of the third adhesive film layer, and the color film is the color film. Therefore, the photovoltaic module has all the characteristics and advantages of the color film, and the description is omitted here. In summary, this photovoltaic module has diversified outward appearance effect, can be applied to scenes such as photovoltaic roofing, photovoltaic curtain, is showing to promote its pleasing to the eye degree.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic structural diagram of a color film according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a photovoltaic module according to an embodiment of the present invention.
Description of reference numerals: 10: a first coating layer; 20: a substrate layer; 30: a second coating layer; 100: a colored film; 210: a first adhesive film layer; 220: a second adhesive film layer; 230: a third adhesive film layer; 300: a battery piece; 400: a photovoltaic front panel; 500: a photovoltaic backsheet.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In one aspect of the invention, the invention provides a coating, which consists of a component A and a component B, wherein the component A comprises: the paint comprises hydroxyl-containing resin, modified organic silicon resin, pigment, filler, solvent and auxiliary agent, wherein the component B is a curing agent; wherein, the content of the resin containing hydroxyl in the component A is 40 to 50 weight percent, the content of the modified organic silicon resin in the component A is 5 to 15 weight percent, the content of the pigment in the component A is 1 to 10 weight percent, the content of the filler in the component A is 0.5 to 1.5 weight percent, the content of the solvent in the component A is 24 to 50 weight percent, and the content of the auxiliary agent in the component A is 0.8 to 1.2 weight percent. Therefore, the paint has various colors and strong adhesive force and cohesive force. The dope layer that adopts this coating to form can closely adhere to on the plastic substrate in order to form colored film, when this colored film is applied to in photovoltaic module, can be so that photovoltaic module has manifold color appearance effect, and this colored film is better with the interlaminar cohesive force of rete, make photovoltaic module can be when having good photoelectric properties, still have long-term good appearance effect, can be applied to scenes such as photovoltaic roofing, photovoltaic curtain, show and promote its pleasing to the eye degree. In addition, the coating can be prepared into a water-based coating and a solvent-based coating according to different solvents, so that the application range is wider, and the wide popularization and the application range are more facilitated.
For ease of understanding, the following brief explanation of the beneficial effects that the coating in this application can achieve is provided:
in the related art, when a color film is prepared by coating a paint on a plastic substrate, polyurethane resin, fluorocarbon resin and acrylic resin are generally used as main body resin, and the main body resin and a glue film layer of a photovoltaic module have poor cohesive force, so that the structure stability is poor when the paint is applied to the photovoltaic module, and the requirement of long-term use cannot be met.
In the present application, the inventors found that the adhesion between the Si — O-Si semi-inorganic structure in the silicone resin and the film layer is excellent, but if only the silicone resin is used as the main resin of the coating material, the adhesion between the formed coating layer and the substrate is low, and the structural stability of the color film is deteriorated; however, if only acrylic resin, polyurethane resin, polyester resin, or the like is used as the main resin of the coating, although the adhesion between the formed coating layer and the substrate is strong, the structural stability of the photovoltaic module is poor due to the poor adhesion between the coating layer and the adhesive film layer of the color film.
The inventors have found that a mixture of a hydroxyl group-containing resin and a modified silicone resin, each of which contains a hydroxyl functional group, is used as a host resin in a coating material, wherein the hydroxyl group-containing resin is, for example, an acrylic resin, a polyurethane resin, a polyester resin, or the like, and the modified silicone resin is a modified silicone resin, for example, an epoxy-modified silicone resin, a polyester-modified silicone resin, an acrylic-modified silicone resin, or the like. Because the adhesion between the resin containing hydroxyl and the plastic substrate is stronger, the adhesion of the coating layer on the substrate can be obviously improved. When the adhesive film layer is a PVB adhesive film layer, the adhesive force between the coating layer of the color film and the adhesive film layer, i.e., the adhesive force between the color film and the adhesive film layer, can be significantly improved because the adhesive force between the modified silicone resin and the adhesive film layer is stronger. The resin containing hydroxyl and the modified organic silicon resin both contain hydroxyl, and through the cross-linking reaction of the hydroxyl and isocyanate groups in the curing agent, chemical bonds can be generated between the resin containing hydroxyl and the modified organic silicon resin, so that the acting force between the resin molecules containing hydroxyl and the molecules of the modified organic silicon resin is increased, and the cured coating layer not only has higher adhesive force on a substrate, but also has higher adhesive force with an adhesive film layer.
According to some embodiments of the present invention, the resin comprises a hydroxyl group-containing resin and a modified silicone resin, wherein the hydroxyl group-containing resin does not contain a benzene ring group, and the modified silicone resin is a modified silicone resin. The resin without benzene ring groups has strong adhesive force on the plastic base material, the bonding force between the modified organic silicon resin and the adhesive film layer is strong, and the resin without benzene ring groups has small yellowing after illumination, thereby being beneficial to obtaining the anti-yellowing coating. By adding the resin containing hydroxyl and the modified organic silicon resin into the coating, the structural stability of the photovoltaic module of the color film is improved.
According to some embodiments of the present invention, the kind of the hydroxyl group-containing resin is not particularly limited as long as it has a hydroxyl group that undergoes a crosslinking reaction with an isocyanate group of the curing agent, and for example, the hydroxyl group-containing resin may include at least one of an acrylic resin, a polyurethane resin, and a polyester resin. Specifically, the content of the hydroxyl-containing resin in the coating may be 40 to 50wt%, and when the content of the hydroxyl-containing resin in the coating is less than 40wt%, the adhesion of the formed coating layer on the plastic substrate is low, thereby deteriorating the structural stability of the colored film; when the content of the resin containing hydroxyl in the coating is more than 50wt%, the weather resistance of the formed coating layer is greatly influenced, so that the weather resistance of the coating layer is poor, and further the weather resistance of the photovoltaic back panel is reduced.
According to some embodiments of the present invention, the kind of the modified silicone resin is not particularly limited as long as it can modify a silicone resin having a hydroxyl group that undergoes a crosslinking reaction with an isocyanate group of the curing agent, and for example, the modified silicone resin may be a modified silicone resin, and specifically, the modified silicone resin may include at least one of an epoxy-modified silicone resin, a polyester-modified silicone resin, and an acrylic-modified silicone resin. Further, the content of the modified silicone resin in the coating may be 5 to 15wt%. When the content of the modified organic silicon resin in the coating is less than 5wt%, the bonding force between the formed coating layer and the PVB adhesive film layer is weak, so that the structural stability of the photovoltaic back plate is poor; when the content of the modified silicone resin in the coating is more than 15wt%, the adhesion of the formed coating layer on the substrate may be reduced, and the structural stability of the colored film may be deteriorated.
According to some embodiments of the present invention, the kind of the curing agent is not particularly limited as long as it has an isocyanate group that can cross-react with a hydroxyl group of the resin, and specifically, the curing agent may include at least one of aliphatic isocyanate and aliphatic polyisocyanate, and further, the curing agent may be at least one of N3790, E3370, N3390, XP-2655, 401-70, and XP-2700 of bayer corporation.
According to some embodiments of the present invention, the coating material may further comprise auxiliary components, thereby facilitating the formation of a coating material with good fluidity and easy coating. In particular, the auxiliary ingredients may include pigments, fillers, solvents and auxiliaries.
According to some embodiments of the present invention, the pigment imparts various colors to the coating, making the coating multicolored. The pigment may include at least one of an organic pigment and an inorganic pigment, and specifically, the organic pigment may include at least one of light fast yellow, nickel azo yellow, a green pigment, phthalocyanine blue, phthalocyanine green, scarlet powder, and quinacridone red; the inorganic pigment may include at least one of titanium dioxide, iron oxide yellow, iron oxide red, iron oxide brown, chrome yellow, chrome green, chrome red, ultramarine, iron blue, and pearlescent pigments. Further, the content of the pigment in the dope may be 1 to 10% by weight. When the content of the pigment in the coating is lower than 1wt%, the formed coating layer is light in color and cannot cover the battery piece to develop color; when the content of the pigment in the coating is higher than 10wt%, the color of the coating layer is darker, and more light rays are absorbed, so that the light transmittance of the colored film is low, and further, the sunlight received by the photovoltaic module is reduced, and the power generation efficiency of the photovoltaic module is reduced.
According to some embodiments of the invention, the filler does not contribute to the coloration of the coating for improving the coating properties. The kind of the filler is not particularly limited, and among them, the filler is not surface-treated. Specifically, the filler may include at least one of white lead, blanc fixe, calcium carbonate, china clay, mica, aluminum hydroxide, talc, silica, fumed silica, and talc. The roughness of the coating layer formed by the coating can be obviously improved by adding the filler, so that the contact area between the coating layer and the adhesive film layer is increased, and the adhesion between the silica filler and the adhesive film layer is reduced because the filler is not subjected to surface treatment, for example, if the silica surface is treated by polyethylene wax, the surface smoothness of the silica is improved, so that the adhesion between the silica filler and the adhesive film layer is further increased compared with the filler subjected to surface treatment. Specifically, the content of the filler in the coating material may be 0.5 to 1.5wt%.
According to some embodiments of the present invention, since the resin is a high molecular material, has a high viscosity and a poor fluidity, by using water and an organic solvent as a dispersion medium, the resin can be dispersed to form a viscous liquid, the system viscosity can be adjusted to make the coating viscosity suitable for storage and construction applications, and after the coating is formed into a film, the organic solvent and water are volatilized into the atmosphere and do not remain in the coating layer. Specifically, the type of the solvent is not particularly limited, and for example, the solvent may be water or an organic solvent, so that an aqueous coating material or a solvent-based coating material can be formed, and the application range is wide. Specifically, the organic solvent may include at least one of ethyl ester, butyl ester, propylene glycol methyl ether acetate, toluene, and xylene. Specifically, the content of the solvent in the dope is 24 to 50wt%. When the content of the solvent in the coating is less than 24wt%, the resin material cannot be completely dissolved, and the dispersibility of the coating is poor; when the content of the solvent in the coating is higher than 50wt%, the content of the solvent is too high, the viscosity of the coating is reduced, and the film forming speed is uncontrollable during coating.
According to some embodiments of the invention, the auxiliary agent improves the paint production process, improves the paint construction curing conditions and the appearance of a coating film, improves the storage stability of the paint, and improves the product quality. Specifically, the auxiliary may include at least one of an ultraviolet absorber, an anti-hydrolysis agent, a wetting dispersant, and a leveling agent. The ultraviolet resistance of the coating layer can be improved by adding the ultraviolet absorbent, so that the coating layer in the photovoltaic module has the function of an ultraviolet shielding layer while developing color; the hydrolysis resistance of the coating can be improved by adding the hydrolysis resistant agent, and the defects of viscosity reduction, yellowing, cracking and the like of the coating caused by hydrolysis are overcome; the addition of the wetting dispersant can reduce the premature precipitation and the skinning of the pigment in the coating; the addition of the leveling agent can prevent the coating from generating defects in the coating film forming process. Specifically, the content of the auxiliary in the coating may be 0.8 to 1.2wt%.
In still another aspect of the present invention, referring to fig. 1, the present invention provides a color film 100, including: the paint comprises a substrate layer 20, a first paint layer 10, a second paint layer 30 and a second paint layer 30, wherein the first paint layer 10 is positioned on one side surface of the substrate layer 20, the second paint layer 30 is positioned on one side surface of the substrate layer 20 far away from the first paint layer 10, and the first paint layer 10 and the second paint layer 30 are both formed by adopting the paint. Because the bonding force between the resin containing hydroxyl and the plastic substrate is strong, the coating can form a coating layer which is firmly adhered and has uniform thickness on the surface of the substrate.
According to some embodiments of the present invention, the kind of the substrate is not particularly limited, for example, the substrate may include at least one of PET, PC, PE, PP, PVC, PS, and ETFE.
According to some embodiments of the present invention, since the first coating layer and the second coating layer are formed through a two-pass coating process, the shapes of the first coating layer and the second coating layer are not particularly limited, for example, the first coating layer and the second coating layer may have an entire layer structure uniformly covering opposite side surfaces of the substrate; or, the orthographic projection of the first coating layer on the substrate can be a preset pattern, the orthographic projection of the second coating layer on the substrate can also be a preset pattern, and the preset pattern can be selected according to actual requirements.
According to some embodiments of the present invention, since the first coating layer and the second coating layer are formed through a two-coating process, the colors of the first coating layer and the second coating layer are not particularly limited, for example, the colors of the first coating layer and the second coating layer may be the same, or the colors of the first coating layer and the second coating layer may be different, which may be selected by those skilled in the art according to practical circumstances.
According to some embodiments of the present invention, since the color film is located between the cell of the photovoltaic module and the photovoltaic front plate, the photovoltaic module can be made to show the color of the color film, and the color film is located on the light path of the sunlight incident on the cell, the light transmittance of the color film should be high, so that the cell can receive a sufficient amount of incident sunlight, and the photovoltaic efficiency of the photovoltaic module is high. Specifically, the light transmittance of the colored film may be greater than 80%. Therefore, the working efficiency of the photovoltaic module can be improved.
According to some embodiments of the present invention, the thicknesses of the first and second coating layers are not particularly limited, and in particular, the thicknesses of the first and second coating layers may be 1 to 20 μm. When the thicknesses of the first coating layer and the second coating layer are less than 1 micron, the coating layers are too thin to play a role in providing diversified color effects for the photovoltaic module; when the thickness of the first coating layer and the second coating layer is larger than 20 micrometers, the total thickness of the coating layers is too thick, so that the light transmittance of the color film is low, and the working efficiency of the photovoltaic module cannot meet the use requirement.
According to some embodiments of the present invention, the first coating layer and the second coating layer may be formed on both sides of the substrate layer by a coating process, which is not particularly limited, for example, the coating process may include at least one of inkjet printing, screen printing, roll coating, spray coating, and blade coating. The coating processes for forming the first coating layer and the second coating layer may be the same or different. The selection can be made by those skilled in the art according to the actual situation.
In yet another aspect of the present invention, referring to fig. 2, the present invention provides a photovoltaic module 1000 comprising: the photovoltaic front plate 400, the first adhesive film layer 210 is located on a side surface of the photovoltaic front plate 400, the color film 100 is located on a side surface of the first adhesive film layer 210 away from the photovoltaic front plate 400, the second adhesive film layer 220 is located on a side surface of the color film 100 away from the first adhesive film layer 210, the cell 300 is located on a side surface of the second adhesive film layer 220 away from the color film 100, the third adhesive film layer 230 is located on a side surface of the cell 300 away from the second adhesive film layer 220, the photovoltaic back plate 500, and the photovoltaic back plate is located on a side surface of the third adhesive film layer 230 away from the cell 300, wherein the color film 100 is the aforementioned color film. Therefore, the photovoltaic module has all the characteristics and advantages of the color film, and the description is omitted here. In summary, the coating forming the coating layer of the color film contains the resin containing hydroxyl and the modified organic silicon resin, and the adhesion between the resin containing hydroxyl and the base material of the color film is strong, so that the structural stability of the color film is strong, and the adhesion between the modified organic silicon resin and the adhesive film layer is strong, so that the adhesion between the coating layer of the color film and the adhesive film layer, namely the adhesion between the color film and the adhesive film layer, can be obviously improved, so that the photovoltaic module has diversified color effects, also has high structural stability, meets the long-term use requirements, can be applied to scenes such as photovoltaic roofs, photovoltaic curtain walls and the like, and obviously improves the aesthetic degree of the photovoltaic module.
For ease of understanding, the following is a brief description of a method of making a photovoltaic module:
firstly, preparing a solar cell piece, then respectively laying a second adhesive film layer and a third adhesive film layer on the upper surface and the lower surface of the solar cell piece, laying a layer of color film on the upper surface of the second adhesive film layer, wherein the color layer of the color film is placed upwards, then laying a first adhesive film layer on the upper surface of the color film, and finally respectively placing a photovoltaic front plate and a photovoltaic back plate on the upper surface and the lower surface of the outermost side of the superposed part to obtain a photovoltaic module to be laminated, wherein the photovoltaic front plate and the photovoltaic back plate can be glass plates. And (3) placing the assembled photovoltaic module to be laminated into a laminating machine for laminating, wherein the laminating temperature can be 80-200 ℃, the laminating pressure can be 50-150kPa, the laminating time can be 3-20 minutes, and installing a junction box to obtain the photovoltaic module with the colored film.
The following examples are provided to illustrate the present application and should not be construed as limiting the scope of the present application. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are conventional products which are commercially available, and are not indicated by manufacturers.
Example 1
The coating comprises the following components: 40g of acrylic resin containing hydroxyl, 5g of acrylic modified organic silicon resin, 10g of phthalocyanine blue, 0.3g of ultraviolet absorbent, 0.1g of anti-hydrolysis agent, 0.4g of wetting dispersant, 0.2g of flatting agent, 1.5g of matting powder and 42.5g of butyl ester, wherein the N3390 g of curing agent is added according to the molar ratio of the hydroxyl in the resin to the isocyanate group in the curing agent being 0.8. Uniformly mixing, coating on two sides of a PET substrate, drying at 150 ℃, and curing at 55 ℃ for 3 days to obtain a blue film with the thickness of 5 um.
Example 2
The coating comprises 45g of hydroxyl-containing polyurethane resin, 10g of epoxy modified organic silicon resin, 5g of scarlet powder, 0.4g of ultraviolet absorber, 0.1g of anti-hydrolysis agent, 0.5g of wetting dispersant, 0.2g of flatting agent, 0.8g of matting powder and 38g of butyl ester, wherein 2.4g of curing agent N3390 is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 1.0. Mixing, coating on both sides of PET substrate, drying at 150 deg.C, aging at 55 deg.C for 3 days, and aging at 55 deg.C for 3 days to obtain red film with thickness of 1 um.
Example 3
The coating comprises 50g of hydroxyl-containing polyester resin, 15g of polyester modified organic silicon resin, 1g of chrome yellow, 0.3g of ultraviolet absorbent, 0.1g of anti-hydrolysis agent, 0.3g of wetting dispersant, 0.1g of flatting agent, 1.2g of matting powder and 32g of butyl ester, wherein curing agent E3370.8 g is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 1.2. Mixing, coating on both sides of PET substrate, drying at 150 deg.C, aging at 55 deg.C for 3 days, and aging at 55 deg.C for 3 days to obtain yellow film with thickness of 20 um.
Example 4
The coating comprises 48 g of hydroxyl-containing polyurethane resin, 14g of polyurethane modified organic silicon resin, 10g of pearl powder, 0.3g of ultraviolet absorbent, 0.2g of anti-hydrolysis agent, 0.4g of wetting dispersant, 0.1g of flatting agent, 1g of matting powder and 26g of butyl ester, and curing agent E3370 g is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 0.8. Uniformly mixing, coating on the surface of a PET substrate, drying at 150 ℃, and curing at 55 ℃ for 3 days to obtain a pearlescent film with the thickness of 10 um.
Example 5
The coating comprises 40g of hydroxyl-containing polyurethane resin, 5g of polyurethane modified organic silicon resin emulsion, 3g of pearl powder, 0.3g of ultraviolet absorbent, 0.1g of anti-hydrolysis agent, 0.3g of wetting dispersant, 0.1g of flatting agent, 1.2g of matting powder and 50g of water, and curing agent XP-27001.8g is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 0.8. Uniformly mixing, coating on the surface of a PET substrate, drying at 150 ℃, and curing at 55 ℃ for 3 days to obtain a pearlescent film with the thickness of 15 um.
Comparative example 1
Depositing Ag on the blue PET film by a vapor deposition method with the vacuum degree of 1 × 10 -5 Pa, the evaporation rate is 2 angstroms per second, the deposition time is 1h, and the thickness is about 100nm, so that the blue PET film with the silver-plated surface is obtained.
Comparative example 2
The coating comprises the following components: 43g of hydroxyl-containing polyester resin, 5g of pearl powder, 0.3g of ultraviolet absorbent, 0.1g of anti-hydrolysis agent, 0.3g of wetting dispersant, 0.1g of flatting agent, 1.2g of flatting agent and 50g of butyl ester are adopted, and 1.6g of curing agent E3370 is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 0.8. Uniformly mixing, coating on the surface of a PET substrate, drying at 150 ℃, and curing at 55 ℃ for 3 days to obtain a pearlescent film with the thickness of 10 um.
Comparative example 3
The coating comprises the following components: 50g of polyester modified organic silicon resin, 5g of pearl powder, 0.3g of ultraviolet absorbent, 0.1g of anti-hydrolysis agent, 0.3g of wetting dispersant, 0.1g of flatting agent, 1.2g of flatting agent and 43g of butyl ester are adopted, and curing agent E3370 g is added according to the molar ratio of hydroxyl in the resin to isocyanate group in the curing agent of 1. Uniformly mixing, coating on the surface of a PET substrate, drying at 150 ℃, and curing at 55 ℃ for 3 days to obtain the pearlescent film with the thickness of 5 um.
The light transmittance of the coatings and colored films obtained in examples 1 to 5 and comparative examples 1 to 3 was measured in accordance with GB/T2680-1994 (measurement of visible light transmittance, direct solar transmittance, total solar transmittance, ultraviolet transmittance and related parameters of window glass); adhesion to a PVB adhesive film layer was determined according to GB/T2790-1995 (adhesive 180 degree peel Strength test method Flexible vs. rigid materials); sequence aging according to UV 15kwh/m in IEC61215:2005 2 Aging the mixture by sequence aging for 50 times of thermal cycle and 10 times of wet freezing; double 85 aging, UV200kwh/m 2 The condition aging is carried out according to the requirements of IEC61215: 2005; yellowing after aging is calculated from the white and yellow indices of the color coordinates measured by an ASTM E313-2010 instrumentThe procedure was performed using the CQC3308-2013 (Backplane specifications for photovoltaic module packaging) standard for sample preparation and performance testing. The test results are shown in table 1:
TABLE 1
In the adhesion test, the adhesion force is strongest at the level of 0, weakest at the level of 5, and gradually decreases from the level of 0 to the level of 5.
The results show that the light transmittance of the color films in examples 1 to 5 and comparative examples 2 and 3 is higher, which indicates that the color films with higher transmittance can be formed by the method of coating the coating layers on both sides of the plastic substrate in the application, and the light transmittance is greatly improved compared with the color films formed by evaporating the metal layers;
the adhesion between the coating layer and the adhesive film layer of the photovoltaic module in examples 1-5 is much greater than that of the coating layer and the adhesive film layer in comparative examples 1-3, the photovoltaic module in examples 1-5 still maintains a higher adhesion level after sequential aging, and the interlayer adhesion of the color film in comparative examples 1-3 after sequential aging is much less than that of the coating layer and the adhesive film layer in examples 1-5.
As can be seen from table 1, when only one of the hydroxyl group-containing resin and the modified silicone resin was included in the coating material, the advantageous effect of the higher adhesion of the coating layer to the adhesive film layer in the examples could not be achieved. The host resin in comparative example 2 includes only the hydroxyl group-containing resin, so that the initial adhesion was 0 grade, but there was almost no adhesion with the adhesive film layer, and the use requirement could not be satisfied. The main resin in comparative example 3 only includes the modified silicone resin, so the initial adhesion of the coating layer is poor, but the adhesion with the adhesive film layer is good, so the coating layer is separated from the surface of the substrate after the adhesion test of the coating layer and the adhesive film layer, and the coating layer is adhered to the adhesive film layer, and the use requirement cannot be met. The coating layers of examples 1-5 have both high adhesion and high adhesion to the adhesive film layer.
According to the yellowing index test structure after aging, the coating layers on the colored films in the embodiments 1 to 5 have better yellowing resistance, and the colored film in the comparative example 1 has lower yellowing resistance, but the adhesive force between the coating layer and the adhesive film layer is poor, so that the use requirement of the photovoltaic module cannot be met. The colored film of comparative example 2 was UV200kwh/m 2 The yellowing index after aging reaches 4.2, and the yellowing index is far beyond the upper limit value of the yellowing index required by the photovoltaic module, namely 3, so that the use requirement of the photovoltaic module cannot be met. Although the yellowing index of the colored film in the comparative example 3 is low, the adhesive force between the coating layer and the adhesive film layer is poor, and the use requirement of the photovoltaic module cannot be met. In summary, the coating prepared by the technical scheme in the application has excellent adhesion with the adhesive film layer because the coating comprises the modified organic silicon resin, and the adhesion with the adhesive film layer is still kept at a higher level after the ultraviolet-thermal cycle-humidity freezing sequence aging, and the adhesion with the base material is still excellent after the ultraviolet-thermal cycle-humidity freezing sequence aging because the coating comprises the modified organic silicon resin, so that the cured coating has higher adhesion with the base material, and has better yellowing resistance.
In the description of the present invention, the terms "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description herein, references to the description of "one embodiment," "another embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A photovoltaic module, comprising:
a photovoltaic front-plate,
a first adhesive film layer positioned on one side surface of the photovoltaic front panel,
the color film is positioned on the surface of one side of the first adhesive film layer far away from the photovoltaic front plate,
a second adhesive film layer, wherein the second adhesive film layer is positioned on the surface of one side of the color film far away from the first adhesive film layer,
the battery piece is positioned on the surface of one side of the second adhesive film layer far away from the color film,
a third adhesive film layer, wherein the third adhesive film layer is positioned on the surface of one side of the battery piece far away from the second adhesive film layer,
the photovoltaic back plate is positioned on the surface of one side of the third adhesive film layer far away from the battery piece,
the color film includes:
a substrate layer comprising at least one of PET, PC, PE, PP, PVC, PS, and ETFE,
a first coating layer positioned on one side surface of the substrate,
a second coating layer, which is positioned on the surface of one side of the substrate far away from the first coating layer,
wherein the first coating layer and the second coating layer are both formed by adopting coating;
the coating consists of a component A and a component B, and is characterized in that the component A comprises: the coating comprises a hydroxyl-containing resin, a modified organic silicon resin, a pigment, a filler, a solvent and an auxiliary agent, wherein the component B is an isocyanate curing agent;
wherein, the content of the resin containing hydroxyl in the component A is 40-50wt%, the content of the modified organic silicon resin in the component A is 5-15wt%, the content of the pigment in the component A is 1-10wt%, the content of the filler in the component A is 0.5-1.5wt%, the content of the solvent in the component A is 24-50wt%, and the content of the auxiliary agent in the component A is 0.8-1.2wt%; the hydroxyl-containing resin does not contain benzene ring groups, and is at least one of acrylic resin, polyurethane resin and polyester resin; the modified silicone resin comprises at least one of epoxy modified silicone resin, polyester modified silicone resin and acrylic modified silicone resin.
2. The photovoltaic module of claim 1, wherein the pigment comprises at least one of an organic pigment and an inorganic pigment;
the organic pigment comprises at least one of light-fast yellow, nickel azo yellow, a green pigment, phthalocyanine blue, phthalocyanine green, scarlet powder and quinacridone red;
the inorganic pigment comprises at least one of titanium dioxide, iron yellow, iron red, iron brown, chrome yellow, chrome green, chrome red, ultramarine, iron blue and pearlescent pigment.
3. The photovoltaic module of claim 1, wherein the filler is not surface treated, and wherein the filler comprises at least one of white lead, barium white, calcium carbonate, china clay, mica, aluminum hydroxide, talc, silica, fumed silica, and talc.
4. The photovoltaic module of claim 1 wherein the solvent is water or an organic solvent comprising at least one of ethyl ester, butyl ester, propylene glycol methyl ether acetate, toluene, and xylene.
5. The photovoltaic module of claim 1, wherein the isocyanate curing agent is at least one of an aliphatic isocyanate or an aliphatic polyisocyanate, and the molar ratio of hydroxyl groups in the a-side to isocyanate groups in the isocyanate curing agent is 0.8 to 1.6.
6. The photovoltaic module of claim 1 wherein the colored film has a light transmittance of greater than 80%.
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| CN109888042A (en) * | 2018-12-27 | 2019-06-14 | 苏州中来光伏新材股份有限公司 | A kind of solar cell backboard and preparation method thereof |
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| CN103429429B (en) * | 2011-03-07 | 2016-06-08 | 富士胶片株式会社 | Easy adhesive plate and the protecting sheet for solar cell |
| JP5686159B2 (en) * | 2012-06-08 | 2015-03-18 | ダイキン工業株式会社 | COATING COMPOSITION, SOLAR CELL MODULE BACK SHEET, AND SOLAR CELL MODULE |
| JP2015185687A (en) * | 2014-03-24 | 2015-10-22 | 富士フイルム株式会社 | Back sheet member for solar batteries, method for manufacturing the same, back sheet for solar batteries, and solar battery module |
| CN108242473B (en) * | 2016-12-26 | 2020-11-20 | 上迈(镇江)新能源科技有限公司 | Color photovoltaic module and preparation method thereof |
| CN206758444U (en) * | 2016-12-26 | 2017-12-15 | 上迈（香港）有限公司 | A kind of integrative color photovoltaic component |
| CN107236378A (en) * | 2017-04-14 | 2017-10-10 | 南通强生光电科技有限公司 | Solar cell backboard coating composition and its solar cell backboard |
| CN111326594A (en) * | 2020-03-01 | 2020-06-23 | 杭州纤纳光电科技有限公司 | Colored coating, photovoltaic module with colored coating and preparation method of photovoltaic module |
| CN111592675A (en) * | 2020-04-08 | 2020-08-28 | 苏州明冠新材料科技有限公司 | Multifunctional protective film material with wide applicability |
| CN112745753B (en) * | 2020-12-30 | 2022-04-01 | 常州威斯敦粘合材料有限责任公司 | Outer layer transparent coating, photovoltaic transparent back plate and preparation method thereof |
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| CN108504224A (en) * | 2018-03-01 | 2018-09-07 | 合肥嘉仕诚能源科技有限公司 | A kind of photovoltaic power generation solar plate coating and preparation method thereof |
| CN109888042A (en) * | 2018-12-27 | 2019-06-14 | 苏州中来光伏新材股份有限公司 | A kind of solar cell backboard and preparation method thereof |
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