CN117025208A - Composite light conversion powder, preparation method thereof and light conversion adhesive film - Google Patents
Composite light conversion powder, preparation method thereof and light conversion adhesive film Download PDFInfo
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- CN117025208A CN117025208A CN202311301191.0A CN202311301191A CN117025208A CN 117025208 A CN117025208 A CN 117025208A CN 202311301191 A CN202311301191 A CN 202311301191A CN 117025208 A CN117025208 A CN 117025208A
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- light conversion
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- conversion powder
- magnesium oxide
- powder
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 148
- 239000000843 powder Substances 0.000 title claims abstract description 90
- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 50
- 239000002313 adhesive film Substances 0.000 title claims abstract description 30
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 81
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910000077 silane Inorganic materials 0.000 claims abstract description 54
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000012964 benzotriazole Substances 0.000 claims abstract description 34
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 33
- -1 alkoxy silane Chemical compound 0.000 claims abstract description 11
- 239000000413 hydrolysate Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims description 34
- 239000002904 solvent Substances 0.000 claims description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 claims description 19
- 229960003493 octyltriethoxysilane Drugs 0.000 claims description 19
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000003431 cross linking reagent Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 7
- 108010009736 Protein Hydrolysates Proteins 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 5
- 239000004611 light stabiliser Substances 0.000 claims description 5
- 230000001476 alcoholic effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 25
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- 238000012360 testing method Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 7
- 235000019441 ethanol Nutrition 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000001819 mass spectrum Methods 0.000 description 5
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- ZSKXYSCQDWAUCM-UHFFFAOYSA-N 1-(chloromethyl)-2-dodecylbenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1CCl ZSKXYSCQDWAUCM-UHFFFAOYSA-N 0.000 description 4
- RKMGAJGJIURJSJ-UHFFFAOYSA-N 2,2,6,6-Tetramethylpiperidine Substances CC1(C)CCCC(C)(C)N1 RKMGAJGJIURJSJ-UHFFFAOYSA-N 0.000 description 4
- AIHSYDQJCKBJHB-UHFFFAOYSA-N 2-(4-bromophenoxy)ethanamine Chemical compound NCCOC1=CC=C(Br)C=C1 AIHSYDQJCKBJHB-UHFFFAOYSA-N 0.000 description 4
- OWEQSMBFLCRRMV-UHFFFAOYSA-N 4,7-dibromo-2h-benzotriazole Chemical compound BrC1=CC=C(Br)C2=NNN=C12 OWEQSMBFLCRRMV-UHFFFAOYSA-N 0.000 description 4
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- 238000004440 column chromatography Methods 0.000 description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- CXNIUSPIQKWYAI-UHFFFAOYSA-N xantphos Chemical compound C=12OC3=C(P(C=4C=CC=CC=4)C=4C=CC=CC=4)C=CC=C3C(C)(C)C2=CC=CC=1P(C=1C=CC=CC=1)C1=CC=CC=C1 CXNIUSPIQKWYAI-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000002390 rotary evaporation Methods 0.000 description 3
- IXDAOYYROAXYLL-UHFFFAOYSA-N tert-butyl 2-ethylhexoxy carbonate Chemical compound CCCCC(CC)COOC(=O)OC(C)(C)C IXDAOYYROAXYLL-UHFFFAOYSA-N 0.000 description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 3
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 3
- WDCYWAQPCXBPJA-UHFFFAOYSA-N 1,3-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1 WDCYWAQPCXBPJA-UHFFFAOYSA-N 0.000 description 2
- MNNZINNZIQVULG-UHFFFAOYSA-N 2-chloroethylbenzene Chemical compound ClCCC1=CC=CC=C1 MNNZINNZIQVULG-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 238000007125 Buchwald synthesis reaction Methods 0.000 description 2
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 238000006069 Suzuki reaction reaction Methods 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000005311 nuclear magnetism Effects 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- ZPKSAIWDCQVXSQ-UHFFFAOYSA-N (4-aminophenoxy)boronic acid Chemical compound NC1=CC=C(OB(O)O)C=C1 ZPKSAIWDCQVXSQ-UHFFFAOYSA-N 0.000 description 1
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
- C09K11/07—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials having chemically interreactive components, e.g. reactive chemiluminescent compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/50—Photovoltaic [PV] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1059—Heterocyclic compounds characterised by ligands containing three nitrogen atoms as heteroatoms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of photovoltaic materials, in particular to composite light conversion powder, a preparation method thereof and a light conversion adhesive film. The composite light conversion powder comprises benzotriazole light conversion powder and silane modified nano magnesium oxide according to the mass ratio of 1: (0.1-1); the silane modified nano magnesium oxide is mainly prepared from the following raw materials in parts by weight: 10-100 parts of nano magnesium oxide, 1-25 parts of alkoxy silane and 40-60 parts of hydrolysate. The nanometer magnesia in the composite light conversion powder is excited by ultraviolet light, electrons generated by photon absorption can be transmitted to the benzotriazole light conversion powder, and the nanometer magnesia and the benzotriazole light conversion powder have strong binding property through silane modification of the nanometer magnesia, so that the electrons generated by photon absorption of the nanometer magnesia are rapidly transmitted to the benzotriazole light conversion powder, the energy loss is small, the composite light conversion powder can be protected, and the fluorescence quantum efficiency can be enhanced.
Description
Technical Field
The invention relates to the technical field of photovoltaic materials, in particular to composite light conversion powder, a preparation method thereof and a light conversion adhesive film.
Background
The Heterojunction (HJT) battery has the advantages of high efficiency, low photoinduced attenuation, low temperature coefficient, high double-sided rate and the like, and the HJT battery becomes a new direction of the development of the crystalline silicon battery. However, HJT cells use amorphous or microcrystalline silicon technology and are not UV light resistant, resulting in power attenuation of the assembly, etc. Therefore, a UV cut-off type adhesive film is generally required to protect the battery cells, but the power of the assembly prepared by the existing UV cut-off type adhesive film is reduced greatly. Therefore, a UV-resistant light-converting film is required to protect the battery cells and convert the spectrum into visible light, thereby improving the utilization rate of sunlight, improving power, and the like.
However, in the light conversion adhesive film in the prior art, most of light conversion powder is directly added or compounded with a UV (ultraviolet) cut-off agent, the direct addition of the light conversion powder can also cause damage to the structure of the light conversion powder by UV, so that the service life is insufficient, and a certain ultraviolet utilization rate can be lost in a compounding mode, so that the power is reduced.
In view of this, the present invention has been made.
Disclosure of Invention
An object of the present invention is to provide a composite light conversion powder having excellent stability and photoelectric conversion efficiency.
The invention further aims at providing a preparation method of the composite light conversion powder.
Still another object of the present invention is to provide a light-converting film.
In order to achieve the above purpose, the invention provides a composite light conversion powder, which comprises benzotriazole light conversion powder and silane modified nano magnesium oxide according to the mass ratio of 1: (0.1-1);
the benzotriazole light conversion powder comprises at least one compound shown in the structures of the following formulas I-II:
、
；
the silane modified nano magnesium oxide is mainly prepared from the following raw materials in parts by weight:
10-100 parts of nano magnesium oxide, 1-25 parts of alkoxy silane and 40-60 parts of hydrolysate.
In a specific embodiment of the present invention, the alkoxysilane comprises octyltriethoxysilane and/or propyltriethoxysilane.
In a specific embodiment of the present invention, the preparation of the silane modified nano magnesium oxide comprises: the nano magnesium oxide is dispersed in the hydrolysate, the alkoxy silane is added, and after the reaction is carried out at 75-85 ℃, the precipitate is collected.
In a specific embodiment of the present invention, the hydrolysate comprises water and an alcoholic solvent. Further, the alcohol solvent includes at least one of methanol, ethanol, 1-propanol and 2-propanol.
The invention also provides a preparation method of any one of the composite light conversion powder, which comprises the following steps:
and (3) dissolving or dispersing the benzotriazole photo-conversion powder and the silane modified nano magnesium oxide in a solvent uniformly, heating to remove the solvent and drying to obtain the composite photo-conversion powder.
In particular embodiments of the invention, the solvent comprises any one or more of ethyl acetate and/or carbon tetrachloride. Further, the mass of the solvent is 10-50% of the mass of the benzotriazole light conversion powder.
The invention also provides a light conversion adhesive film, which comprises a film main body and any one of the composite light conversion powder dispersed in the film main body; in the light conversion adhesive film, the mass ratio of the composite light conversion powder is 0.005-0.5%.
In a specific embodiment of the invention, the film body comprises the following components in parts by weight: 100 parts of matrix resin, 0.5 to 1.5 parts of cross-linking agent, 0.1 to 1 part of auxiliary cross-linking agent, 0.1 to 0.5 part of antioxidant, 0.1 to 1 part of light stabilizer and 0.3 to 1.5 parts of coupling agent;
the matrix resin comprises EVA resin and/or POE resin.
The invention further provides a photovoltaic module, which comprises any one of the light conversion adhesive films.
In a specific embodiment of the present invention, the photovoltaic module includes a HJT cell and a glass, and the light-converting film is disposed between the HJT cell and the glass in a bonding manner.
Compared with the prior art, the invention has the beneficial effects that:
(1) In the composite light conversion powder, the nanometer magnesia and the benzotriazole light conversion powder with a specific structure are excited by ultraviolet light, and electrons generated by photon absorption can be transmitted to the benzotriazole light conversion powder; the silane modification of the nano magnesium oxide ensures that the nano magnesium oxide and the benzotriazole light conversion powder have strong bonding property, so that electrons generated by photon absorption of the nano magnesium oxide are rapidly transferred to the benzotriazole light conversion powder, the energy loss is small, the composite light conversion powder can be protected, and the fluorescence quantum efficiency can be enhanced;
(2) The preparation method of the composite light conversion powder is simple and convenient to operate, mild in condition and easy to produce in a technological way;
(3) The photovoltaic module provided by the invention adopts the light-converting adhesive film with the composite light-converting powder, so that the power of the module can be obviously improved, the attenuation degree of the power of the module after long-term UV irradiation can be reduced, and the service life of the module can be prolonged.
Detailed Description
The technical solution of the present invention will be clearly and completely described in conjunction with the specific embodiments, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present invention, and are intended to be illustrative only and should not be construed as limiting the scope of the present invention. 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. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The invention provides composite light conversion powder, which comprises benzotriazole light conversion powder and silane modified nano magnesium oxide according to the mass ratio of 1: (0.1-1);
the benzotriazole light conversion powder comprises at least one of compounds shown in the structures of the following formulas I-II:
、
；
the silane modified nano magnesium oxide is mainly prepared from the following raw materials in parts by weight:
10-100 parts of nano magnesium oxide, 1-25 parts of alkoxy silane and 40-60 parts of hydrolysate.
When the nano magnesium oxide is excited by ultraviolet light, electrons in molecules can be excited to a higher energy level, and the nano magnesium oxide has good ultraviolet photon absorption property, but because the nano magnesium oxide has no luminous group and can only return to a ground state in a short time by depending on the electrons in an excited state, fluorescence is released, and therefore the quantum efficiency is low.
According to the composite light conversion powder, the nano magnesium oxide and the benzotriazole light conversion powder with a specific structure are compounded, after the nano magnesium oxide is excited by ultraviolet light and absorbs electrons generated by photons, the electrons can be transferred to the benzotriazole light conversion powder, and fluorescence is released through the benzotriazole light conversion powder, so that the quantum efficiency is improved. The silane modification of the nano magnesium oxide ensures that the nano magnesium oxide and the benzotriazole light conversion powder have strong bonding property, so that electrons generated by photon absorption of the nano magnesium oxide are rapidly transferred to the benzotriazole light conversion powder, the energy loss is small, the composite light conversion powder can be protected, and the fluorescence quantum efficiency can be enhanced.
In various embodiments, the mass ratio of the benzotriazole-based photopowder to the silane-modified nano-magnesia may be 1:0.1, 1:0.2, 1:0.3, 1:0.4, 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, or a range of any two of these.
In the different embodiments, the raw materials of the silane modified nano magnesium oxide can be respectively as follows in parts by weight:
the amount of the nano magnesium oxide may be 10 parts, 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, 80 parts, 90 parts, 100 parts or a range composed of any two of them;
the alkoxysilane may be used in an amount ranging from 1 part, 2 parts, 5 parts, 8 parts, 10 parts, 12 parts, 15 parts, 18 parts, 20 parts, 22 parts, 25 parts, or any two thereof;
the amount of the hydrolysate may be 40 parts, 42 parts, 45 parts, 48 parts, 50 parts, 52 parts, 55 parts, 58 parts, 60 parts or any two thereof.
The synthetic route for the compounds of formula I can be referred to as follows:
carrying out Suzuki reaction on the 4, 7-dibromo-2H-benzotriazole and 4-aminophenylboric acid to obtain an intermediate A; then, the intermediate A and 2- (4-bromophenoxy) ethylamine are subjected to Buchwald reaction to obtain the compound shown in the structure of the formula I. In actual operation, when the intermediate A and the 2- (4-bromophenoxy) ethylamine are reacted, the amino in the 2- (4-bromophenoxy) ethylamine can be subjected to conventional amino protection, such as acetyl protection, in advance, and conventional removal can be performed after the reaction is finished; the reaction may be carried out without the above amino group protection.
Specifically, the synthesis and structural characterization of the compounds of formula I are as follows:
(a) 4, 7-dibromo-2H-benzotriazole (0.1 mol), 4-aminophenylboronic acid (0.2 mol), pd (PPh) 3 ) 4 (0.01 mol), potassium carbonate (0.01 mol), H 2 O (10 mL) and DMF (100 mL) were placed in a reaction vessel and reacted at 120℃for 24 hours under nitrogen atmosphere. After the completion of the reaction, the reaction mixture was cooled to room temperature, 50mL of water was added to the reaction mixture, the mixture was extracted with methylene chloride (50 mL. Times.3), the organic phase was collected, and the organic phase was concentrated to give a solid, which was subjected to conventional column chromatographyIsolation gives intermediate A.
(b) Intermediate A (0.05 mol), 2- (4-bromophenoxy) ethylamine (0.25 mol), pd 2 (dba) 3 (0.0025 mol), DIEA (0.1 mol), ligand Xantphos (0.005 mol) and toluene (100 mL) are added into a reaction vessel, stirred, heated to reflux under the protection of nitrogen, reacted for about 20h until the raw materials are completely reacted, stopped, and cooled to room temperature. Dichloromethane (500 mL) and water (250 mL) were added and the mixture was stirred for separation, and the organic phase was collected and washed with saturated brine (250 ml×2) and then concentrated to give a solid substance. The compound shown in the structure of the formula I is obtained through conventional column chromatography separation.
And verifying the product as a target product through nuclear magnetism, mass spectrum and other structural characterization. Wherein mass spectrometry MS (MALDI-TOF, m/z): calculated value C 50 H 51 N 9 O 4 841.41; test value 842.16[ M+H] + ； 1 H-NMR（DMSO-d 6 , 500MHz）:δ 7.86（s，2H），7.52（d，J=6.8Hz，4H），6.74-6.68（m，12H），6.53（d，J=9.8Hz，8H），4.26（t，J=10Hz，8H），3.30（t，J=10Hz，8H）。
The synthetic route for the compounds of formula II can be referred to as follows:
4, 7-dibromo-2H-benzotriazole and 1, 3-dinitrobenzene are subjected to substitution reaction to obtain an intermediate B, the intermediate B is subjected to reduction reaction to obtain an intermediate C, the intermediate C and beta-chlorophenylethane are subjected to Buchwald reaction to obtain an intermediate D, and the intermediate D and 4-aminophenylboronic acid are subjected to Suzuki reaction to obtain a compound shown in the structure of the formula II.
Specifically, the synthesis and structural characterization of the compounds of formula II are as follows:
(a) 4, 7-dibromo-2H-benzotriazole (0.1 mol), 1, 3-dinitrobenzene (0.1 mol), cuBr (0.02 mol), ammonium persulfate (0.2 mol) and acetonitrile (5 mL) were placed in a reaction vessel and reacted at 60℃for about 8 hours in a nitrogen atmosphere until the raw materials were completely reacted, and the reaction was stopped and reduced toRoom temperature. The solvent was removed and the solid was subjected to conventional column chromatography to afford intermediate B. Mass spectrum MS (MALDI-TOF, m/z) of intermediate B: calculated value C 12 H 5 Br 2 N 5 O 4 442.87; test value 443.25[ M+H ]] + ； 1 H-NMR（DMSO-d 6 , 500MHz）:δ 8.76（s，1H），8.49（s，2H），7.51（s，2H）。
(b) Taking the intermediate B, adding a proper amount of methanol into a reaction vessel to dissolve the intermediate B, adding ammonium formate (10 times of the molar quantity of the intermediate B) and 10% palladium/carbon (10% of the mass of the intermediate B), and reacting at 20 ℃ for about 3 hours until the raw materials are completely reacted, and stopping the reaction. And filtering and collecting filtrate, pouring the filtrate into a large amount of water, precipitating solid, filtering, collecting the solid and drying to obtain the intermediate C. Mass spectrum MS (MALDI-TOF, m/z) of intermediate C: calculated value C 12 H 9 Br 2 N 5 382.92; test value 383.54[ M+H ]] + ； 1 H-NMR（DMSO-d 6 , 500MHz）: δ 7.51（s，2H），6.01（s，2H），5.76（s，1H）。
(c) Intermediate C (0.05 mol), beta-chlorophenylethane (0.1 mol), pd 2 (dba) 3 (0.0025 mol), DIEA (0.1 mol), ligand Xantphos (0.005 mol) and toluene (80 mL) are added into a reaction vessel, stirred, heated to reflux under the protection of nitrogen, reacted for about 24 hours until the raw materials are completely reacted, stopped, and cooled to room temperature. Dichloromethane (40 mL) and water (200 mL) were added and the mixture was stirred for separation, and the organic phase was collected and washed with saturated brine (200 ml×2) and then concentrated to give a solid substance. Intermediate D was isolated by conventional column chromatography. Mass spectrum MS (MALDI-TOF, m/z) of intermediate D: calculated value C 28 H 25 Br 2 N 5 591.05; test value 592.02[ M+H ]] + ； 1 H-NMR（DMSO-d 6 , 500MHz）: δ 7.51（s，2H），7.42（t，J=10Hz，4H），7.28-7.30（m，6H），5.94（s，2H），5.69（s，1H），3.37（t，J=8Hz，4H），2.92（t，J=8Hz，4H）。
(d) Intermediate D (0.04 mol), 4-aminophenylboronic acid (0).08mol）、Pd(PPh 3 ) 4 (0.004 mol), potassium carbonate (0.004 mol), H 2 O (4 mL) and DMF (40 mL) were placed in a reaction vessel and reacted at 120℃for 24h under nitrogen atmosphere. After the reaction, cooling to room temperature, adding 20mL of water into the reaction solution, extracting with dichloromethane (20 mL multiplied by 3), collecting an organic phase, concentrating the organic phase to obtain a solid, and performing conventional column chromatography separation to obtain a compound shown in a structure of a formula II.
And verifying the product as a target product through nuclear magnetism, mass spectrum and other structural characterization. Wherein mass spectrometry MS (MALDI-TOF, m/z): calculated value C 40 H 37 N 7 615.31; test value 616.08[ M+H ]] + ； 1 H-NMR（DMSO-d 6 , 500MHz）:δ 7.75（s，2H），7.54（d，J=6Hz，4H），7.39（t，J=9.8Hz，4H），7.26-7.28（m，6H），6.60（d，J=6Hz，4H），5.93（s，2H），5.70（s，1H），3.37（t，J=8Hz，4H），2.93（t，J=8Hz，4H）。
In a specific embodiment of the present invention, the alkoxysilane comprises octyltriethoxysilane and/or propyltriethoxysilane.
The adoption of the alkoxy silane is more beneficial to improving the combination property between the nano magnesium oxide and the benzotriazole light conversion powder, and further reduces the energy loss.
In a specific embodiment of the present invention, the preparation of the silane modified nano magnesium oxide comprises: dispersing nano magnesium oxide in the hydrolysate, adding alkoxy silane, reacting at 75-85 deg.c, and collecting precipitate. Further, after dispersing nano magnesium oxide in the hydrolysate, adjusting the pH to 8.5-9.5, and then adding alkoxy silane.
In actual operation, nano magnesium oxide can be dispersed in hydrolysate, then pH regulator is adopted to regulate the pH of the system to 8.5-9.5, then alkoxysilane is added, after the temperature rising reaction, centrifugal separation is carried out, ethanol is adopted to wash precipitate, and the precipitate is collected.
Wherein, the pH regulator is a conventional pH regulator, such as ammonia water solution, but not limited thereto.
As in the various embodiments, the pH may be adjusted to a range of 8.5, 8.8, 9, 9.2, 9.5 or any two of these.
In a specific embodiment of the present invention, the hydrolysate comprises water and an alcoholic solvent. Further, the alcohol solvent includes at least one of methanol, ethanol, 1-propanol and 2-propanol; the mass ratio of the water to the alcohol solvent is 1: (0.5-1.5).
In various embodiments, the mass ratio of water to the alcoholic solvent in the hydrolysate may be 1:0.5, 1:0.8, 1:1, 1:1.2, 1:1.5, or a range of any two thereof.
The invention also provides a preparation method of any one of the composite light conversion powder, which comprises the following steps:
and (3) dissolving or dispersing the benzotriazole photo-conversion powder and the silane modified nano magnesium oxide in a solvent uniformly, heating to remove the solvent and drying to obtain the composite photo-conversion powder.
In actual operation, the process of dissolution or dispersion is accompanied by ultrasonic treatment to ensure that the materials are uniformly mixed and dispersed. Further, silane modified nano magnesium oxide can be dispersed in a solvent in advance, then benzotriazole light conversion powder is added, ultrasonic dissolution treatment is carried out, and then the solvent is removed by a rotary evaporation mode and is dried.
According to the preparation method, the silane modified nano magnesium oxide has good compatibility with organic molecules due to silane modification, is mixed with the benzotriazole photo-conversion powder in a solvent, takes the silane modified nano magnesium oxide as a core in the process of removing the solvent, and is recrystallized in the solvent to obtain the benzotriazole photo-conversion powder which is coated or partially coated on the surface of the silane modified nano magnesium oxide.
In particular embodiments of the present invention, the solvent comprises any one or more of ethyl acetate, and/or carbon tetrachloride. Further, the mass of the solvent is 10-50% of the mass of the benzotriazole light conversion powder.
As in the various embodiments, the mass of the solvent may be 10%, 20%, 30%, 40%, 50% or any two of the ranges of compositions of the benzotriazole-based light conversion powders.
The invention also provides a light conversion adhesive film, which comprises a film main body and any one of the composite light conversion powder dispersed in the film main body; in the light conversion adhesive film, the mass ratio of the composite light conversion powder is 0.005-0.5%.
As in the various embodiments, the mass ratio of the composite light conversion powder in the light conversion film may be 0.005%, 0.008%, 0.01%, 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, 0.5% or a range composed of any two thereof.
In a specific embodiment of the invention, the film body comprises the following components in parts by weight: 100 parts of matrix resin, 0.5 to 1.5 parts of cross-linking agent, 0.1 to 1 part of auxiliary cross-linking agent, 0.1 to 0.5 part of antioxidant, 0.1 to 1 part of light stabilizer and 0.3 to 1.5 parts of coupling agent;
the matrix resin comprises EVA resin and/or POE resin.
The composition of the film body may be the same as that of EVA film or POE film conventionally used for light-converting film. For example, in various embodiments, the film body may have the following components in parts by weight, relative to 100 parts of the matrix resin:
the amount of the crosslinking agent may be 0.5 parts, 0.8 parts, 1 part, 1.2 parts, 1.5 parts or a range composed of any two thereof;
the amount of the auxiliary crosslinking agent may be 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part or a range composed of any two of them;
the amount of the antioxidant may be 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part or a range consisting of any two of these;
the light stabilizer may be used in an amount ranging from 0.1 part, 0.2 part, 0.5 part, 0.8 part, 1 part, or any two thereof;
the coupling agent may be used in an amount ranging from 0.3 parts, 0.5 parts, 0.8 parts, 1 part, 1.2 parts, 1.5 parts, or any two thereof.
Among them, the kinds of the auxiliary agents may be exemplified as follows, but are not limited thereto:
the cross-linking agent is at least one selected from peroxide cross-linking agents;
the auxiliary cross-linking agent comprises ethylene glycol dimethacrylate;
the antioxidant comprises any one or more of hindered phenol antioxidants and phosphite antioxidants;
the light stabilizer comprises 4-benzoyloxy-2, 6-tetramethylpiperidine;
the coupling agent comprises at least one of silane coupling agents, such as epoxy group-containing silane coupling agents, specifically, gamma-glycidyl ether oxypropyl trimethoxy silane.
In a specific embodiment of the present invention, the preparation method of the light conversion film includes the following steps:
uniformly mixing the film main body and the composite light conversion powder in proportion, extruding and casting to form the film.
In a specific embodiment of the present invention, the extrusion casting temperature is 80 to 90 ℃.
In actual operation, the operation of uniformly mixing can be performed in a mixer; the extrusion casting film forming operation may be performed in a casting machine.
The thickness of the specific light-converting film can be adjusted according to practical requirements, for example, can be 0.5mm, but is not limited to this.
The invention further provides a photovoltaic module, which comprises any one of the light conversion adhesive films.
In a specific embodiment of the invention, the photovoltaic module comprises a HJT battery and glass, and the light-converting adhesive film is arranged between the HJT battery and the glass in a fitting way.
Some of the product information used in embodiments of the present invention may be as follows, materials conventional in the art, but are not limited thereto:
EVA resin: the content of the VA is 28% and the melt index of the Sierban V2825 is 25g/10 min;
nano magnesium oxide: DK-MgO-001 of the island gold technology Co.Ltd.
Example 1
The embodiment provides a light conversion adhesive film and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) Weighing 50 parts by weight of nano magnesium oxide, 50 parts by weight of hydrolysate, 10 parts by weight of octyl triethoxysilane and 10 parts by weight of ethyl acetate; wherein the hydrolysate comprises deionized water and absolute ethyl alcohol in a mass ratio of 1:1; mixing nano magnesium oxide and hydrolysate to obtain a mixed solution, regulating the pH value of the mixed solution to 9 by using an ammonia water solution (mass fraction is 25%), uniformly dispersing by ultrasonic waves, adding octyl triethoxysilane, heating to 80 ℃, preserving heat for 5 hours, centrifuging after the reaction is finished, washing precipitate by adopting ethanol, and repeating for three times to obtain the silane modified nano magnesium oxide.
(2) 100 parts by weight of a compound shown in a structure of formula I and 50 parts by weight of silane modified nano magnesium oxide are weighed, the silane modified nano magnesium oxide is dispersed in 10 parts by weight of ethyl acetate, then the compound shown in the structure of formula I is added, the compound is dissolved and dispersed uniformly by ultrasound, and then the solvent is removed by rotary evaporation at 65 ℃ and dried, so that the composite light conversion powder is obtained.
(3) 100 parts by weight of EVA resin is weighed and placed in a mixer, 1 part by weight of tert-butyl peroxycarbonate-2-ethylhexyl ester, 0.5 part by weight of ethylene glycol dimethacrylate, 0.5 part by weight of tris (nonylphenyl) phosphite, 0.6 part by weight of 4-benzoyloxy-2, 6-tetramethylpiperidine, 1.5 parts by weight of gamma-glycidoxypropyl trimethoxysilane and 0.3 part by weight of the composite photo-conversion powder prepared in the step (2) are added into the mixer, uniformly mixed in the mixer, and put into a casting machine, and subjected to plasticizing extrusion, stretching, traction and rolling at 80 ℃ to prepare the EVA photo-conversion adhesive film with the thickness of 0.5 mm.
Example 2
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: and (3) preparing the composite light conversion powder in the step (2) by adopting different benzotriazole light conversion powders.
This example uses an equivalent weight of a compound of formula II in place of the compound of formula I in example 1.
Example 3
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of this example, 100 parts by weight of a compound represented by the structure of formula I and 10 parts by weight of silane-modified nano magnesium oxide were weighed.
Example 4
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of this example, 100 parts by weight of the compound represented by the structure of formula I and 100 parts by weight of silane-modified nano magnesium oxide were weighed.
Example 5
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of this example, 100 parts by weight of a compound represented by the structure of formula I and 40 parts by weight of silane-modified nano magnesium oxide were weighed.
Example 6
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of this example, 100 parts by weight of a compound represented by the structure of formula I and 60 parts by weight of silane-modified nano magnesium oxide were weighed.
Example 7
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of this example, octyltriethoxysilane is used in an amount of 1 part by weight.
Example 8
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of this example, octyltriethoxysilane was used in an amount of 25 parts by weight.
Example 9
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of this example, octyltriethoxysilane is used in an amount of 5 parts by weight.
Example 10
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of this example, octyltriethoxysilane was used in an amount of 15 parts by weight.
Example 11
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the types of the alkoxy silane are different.
In step (1) of this example, the octyltriethoxysilane was replaced with an equal weight of propyltriethoxysilane.
Example 12
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the types of the alkoxy silane are different.
In step (1) of this example, octyltriethoxysilane was replaced with an equal weight of vinyltrimethoxysilane.
Example 13
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: the amount of the composite light conversion powder in the step (3) is different.
In step (3) of this example, 0.006 parts by weight of composite light conversion powder was used.
Example 14
The light conversion film of the present embodiment and the preparation method thereof according to reference embodiment 1 are different only in that: the amount of the composite light conversion powder in the step (3) is different.
In step (3) of this example, 0.5 parts by weight of the composite light conversion powder was used.
Comparative example 1
Comparative example 1 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: the adopted benzotriazole light conversion powder is different.
The compound of formula I in example 1 was replaced with an equivalent amount of the compound of formula III in comparative example 1. Wherein the compound of formula III is as follows:
。
wherein, the preparation method of the compound shown in the structure of the formula III refers to the preparation method of patent application specifications [0181] to [0185] with publication number CN 103562323A.
Comparative example 2
Comparative example 2 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: directly adopts the nano magnesium oxide and the benzotriazole light conversion powder for compounding.
Specifically, comparative example 2 does not include step (1) in example 1, and step (2) includes: 100 parts by weight of a compound shown in a structure of formula I and 50 parts by weight of nano magnesium oxide are weighed, the nano magnesium oxide is dispersed in 10 parts by weight of ethyl acetate, then the compound shown in the structure of formula I is added, after ultrasonic dissolution and uniform dispersion, the solvent is removed by rotary evaporation at 65 ℃ and is dried, and the composite light conversion powder is obtained.
Comparative example 3
Comparative example 3 provides a light-converting adhesive film and a preparation method thereof, wherein the preparation method comprises the following steps: 100 parts by weight of EVA resin is weighed and placed in a mixer, 1 part by weight of tert-butyl peroxycarbonate-2-ethylhexyl ester, 0.5 part by weight of ethylene glycol dimethacrylate, 0.5 part by weight of tris (nonylphenyl) phosphite, 0.6 part by weight of 4-benzoyloxy-2, 6-tetramethylpiperidine, 1.5 parts by weight of gamma-glycidoxypropyl trimethoxysilane and 0.3 part by weight of silane modified nano magnesium oxide are added into the mixer, and are evenly mixed in the mixer, and are put into a casting machine to be subjected to plasticization extrusion, stretching, traction and rolling at 80 ℃ to prepare the EVA photo-conversion adhesive film with the thickness of 0.5 mm.
Wherein, the preparation method of the silane modified nano magnesium oxide refers to the step (1) in the example.
Comparative example 4
Comparative example 4 provides a light-converting adhesive film and a method for preparing the same, wherein the method for preparing the same comprises: 100 parts by weight of EVA resin is weighed and placed in a mixer, 1 part by weight of tert-butyl peroxycarbonate-2-ethylhexyl ester, 0.5 part by weight of ethylene glycol dimethacrylate, 0.5 part by weight of tris (nonylphenyl) phosphite, 0.6 part by weight of 4-benzoyloxy-2, 6-tetramethylpiperidine, 1.5 parts by weight of gamma-glycidoxypropyl trimethoxysilane and 0.3 part by weight of a compound shown in a structure of formula I are added into the mixer, and are evenly mixed in the mixer, and put into a casting machine to be subjected to plasticization extrusion, stretching, traction and rolling at 80 ℃ to prepare the EVA photo-conversion adhesive film with the thickness of 0.5 mm.
Wherein, the preparation method of the silane modified nano magnesium oxide refers to the step (1) in the example.
Comparative example 5
Comparative example 5 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of comparative example 5, 100 parts by weight of the compound represented by the structure of formula I and 5 parts by weight of silane-modified nano magnesium oxide were weighed.
Comparative example 6
Comparative example 6 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: in the preparation of the composite light conversion powder in the step (2), the compound shown in the structure of the formula I and the silane modified nano magnesium oxide are different in dosage.
In step (2) of comparative example 6, 100 parts by weight of the compound represented by the structure of formula I and 150 parts by weight of silane-modified nano magnesium oxide were weighed.
Comparative example 7
Comparative example 7 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of comparative example 7, octyltriethoxysilane was used in an amount of 0.5 parts by weight.
Comparative example 8
Comparative example 8 the light-converting film of reference example 1 and a method for preparing the same are distinguished in that: in the preparation of the silane modified nano magnesium oxide in the step (1), the use amount of the octyl triethoxysilane is different.
In step (1) of comparative example 8, octyltriethoxysilane was used in an amount of 30 parts by weight.
Experimental example
In order to comparatively illustrate the performance differences of the photo-conversion adhesive films of different examples and comparative examples, the photo-conversion adhesive films of different examples and comparative examples were respectively prepared into photovoltaic module samples to be tested, and the initial module power and UV120kWh/m of different photovoltaic modules were referred to IEC61215 2 And testing the power of the rear photovoltaic module, and calculating the attenuation rate according to the two data. The test results are shown in Table 1.
The preparation of the photovoltaic module sample to be tested comprises the following steps: the upper glass layer, the upper light conversion adhesive film layer, the battery piece, the lower light conversion adhesive film layer and the lower glass layer are all double-glass components. The upper layer light conversion adhesive film and the lower layer light conversion adhesive film are both light conversion adhesive films containing the composite light conversion agent, wherein the battery piece adopts a battery piece with the size of HJT, and finally the 110-model assembly is manufactured. The conventional no light converting material assembly has an initial power of 585W.
TABLE 1 Performance test results of photovoltaic modules corresponding to different light-converting films
From the test results, the photo-conversion powder is grafted onto the modified MgO, so that the UV aging resistance of the photo-conversion powder can be effectively improved, the photon absorption rate is increased, and the increase of the electron rate transfer improves the photo-conversion power of the component.
In comparative example 6, the attenuation rate of the module was low due to the large amount of magnesium oxide, but the initial module power was low due to the large amount of magnesium oxide.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The composite light conversion powder is characterized by comprising benzotriazole light conversion powder and silane modified nano magnesium oxide according to the mass ratio of 1: (0.1-1);
the benzotriazole light conversion powder comprises at least one compound shown in the structures of the following formulas I-II:
、
；
the silane modified nano magnesium oxide is mainly prepared from the following raw materials in parts by weight:
10-100 parts of nano magnesium oxide, 1-25 parts of alkoxy silane and 40-60 parts of hydrolysate.
2. The composite light conversion powder according to claim 1, wherein the alkoxysilane comprises octyltriethoxysilane and/or propyltriethoxysilane.
3. The composite light conversion powder according to claim 1, wherein the hydrolysate comprises water and an alcoholic solvent; the alcohol solvent includes at least one of methanol, ethanol, 1-propanol and 2-propanol.
4. The composite light conversion powder according to claim 1, wherein the preparation of the silane modified nano-magnesia comprises: the nano magnesium oxide is dispersed in the hydrolysate, the alkoxy silane is added, and after the reaction is carried out at 75-85 ℃, the precipitate is collected.
5. The method for preparing the composite light conversion powder according to any one of claims 1 to 4, comprising the steps of:
and (3) dissolving or dispersing the benzotriazole photo-conversion powder and the silane modified nano magnesium oxide in a solvent uniformly, heating to remove the solvent and drying to obtain the composite photo-conversion powder.
6. The method for preparing the composite light conversion powder according to claim 5, wherein the solvent comprises any one or more of ethyl acetate and/or carbon tetrachloride;
the mass of the solvent is 10-50% of the mass of the benzotriazole light conversion powder.
7. The light conversion adhesive film is characterized by comprising a film main body and composite light conversion powder dispersed in the film main body; the composite light conversion powder is the composite light conversion powder prepared by any one of claims 1 to 4 or the preparation method of any one of claims 5 to 6;
in the light conversion adhesive film, the mass ratio of the composite light conversion powder is 0.005-0.5%.
8. The light converting film according to claim 7, wherein the film body comprises the following components in parts by weight: 100 parts of matrix resin, 0.5 to 1.5 parts of cross-linking agent, 0.1 to 1 part of auxiliary cross-linking agent, 0.1 to 0.5 part of antioxidant, 0.1 to 1 part of light stabilizer and 0.3 to 1.5 parts of coupling agent;
the matrix resin comprises EVA resin and/or POE resin.
9. A photovoltaic module comprising the light converting film of claim 7 or 8.
10. The photovoltaic module of claim 9, further comprising a HJT cell and glass, wherein the light-converting film is disposed between the HJT cell and the glass.
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