CN117801712A - Water-blocking adhesive tape for photovoltaic module frame and preparation method thereof - Google Patents
Water-blocking adhesive tape for photovoltaic module frame and preparation method thereof Download PDFInfo
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- CN117801712A CN117801712A CN202311856305.8A CN202311856305A CN117801712A CN 117801712 A CN117801712 A CN 117801712A CN 202311856305 A CN202311856305 A CN 202311856305A CN 117801712 A CN117801712 A CN 117801712A
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- Prior art keywords
- water
- parts
- photovoltaic module
- blocking
- module frame
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- 239000002390 adhesive tape Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 48
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 46
- 229920001971 elastomer Polymers 0.000 claims abstract description 36
- 239000005060 rubber Substances 0.000 claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 23
- 239000011256 inorganic filler Substances 0.000 claims abstract description 21
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 21
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 11
- -1 vaseline Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 9
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 9
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000011297 pine tar Substances 0.000 claims description 7
- 229940068124 pine tar Drugs 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 229910021485 fumed silica Inorganic materials 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 150000003505 terpenes Chemical class 0.000 claims description 5
- 235000007586 terpenes Nutrition 0.000 claims description 5
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 claims description 4
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 150000004982 aromatic amines Chemical group 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 150000001451 organic peroxides Chemical class 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- WRXCBRHBHGNNQA-UHFFFAOYSA-N (2,4-dichlorobenzoyl) 2,4-dichlorobenzenecarboperoxoate Chemical compound ClC1=CC(Cl)=CC=C1C(=O)OOC(=O)C1=CC=C(Cl)C=C1Cl WRXCBRHBHGNNQA-UHFFFAOYSA-N 0.000 claims description 2
- RYSXWUYLAWPLES-MTOQALJVSA-N (Z)-4-hydroxypent-3-en-2-one titanium Chemical compound [Ti].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O RYSXWUYLAWPLES-MTOQALJVSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000005662 Paraffin oil Substances 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 2
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 150000008366 benzophenones Chemical class 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000011280 coal tar Substances 0.000 claims description 2
- 125000005266 diarylamine group Chemical group 0.000 claims description 2
- 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 2
- 229910000464 lead oxide Inorganic materials 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229940060184 oil ingredients Drugs 0.000 claims description 2
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 150000003873 salicylate salts Chemical class 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000004246 zinc acetate Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 150000001412 amines Chemical group 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 229940099259 vaseline Drugs 0.000 claims 1
- 238000004383 yellowing Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 13
- 239000000306 component Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 229920005987 OPPANOL® Polymers 0.000 description 6
- 229920009405 Polyvinylidenefluoride (PVDF) Film Polymers 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000012965 benzophenone Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 241001081179 Litsea Species 0.000 description 2
- 235000012854 Litsea cubeba Nutrition 0.000 description 2
- 241000737400 Oxybasis chenopodioides Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- UJAWGGOCYUPCPS-UHFFFAOYSA-N 4-(2-phenylpropan-2-yl)-n-[4-(2-phenylpropan-2-yl)phenyl]aniline Chemical compound C=1C=C(NC=2C=CC(=CC=2)C(C)(C)C=2C=CC=CC=2)C=CC=1C(C)(C)C1=CC=CC=C1 UJAWGGOCYUPCPS-UHFFFAOYSA-N 0.000 description 1
- 241000219312 Chenopodium Species 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention relates to a water-blocking adhesive tape for a photovoltaic module frame and a preparation method thereof, and belongs to the technical field of adhesive tapes. The water-blocking adhesive tape for the photovoltaic module frame comprises a substrate layer, a water-blocking adhesive layer and a release layer which are sequentially arranged, wherein the water-blocking adhesive layer is prepared from a water-blocking adhesive; the waterproof adhesive comprises, by weight, 50 parts of butyl rubber, 10-20 parts of polyisobutylene rubber, 5-30 parts of a plasticizer, 3-40 parts of a tackifying resin, 1-5 parts of an antioxidant, 0.5-3 parts of an ultraviolet absorber, 1-6 parts of an anti-aging agent, 0.2-3 parts of a crosslinking agent and 10-60 parts of an inorganic filler; the polyisobutene comprises polyisobutene with a number average molecular weight of 1000-10000 and polyisobutene with a number average molecular weight of 50000-100000; polyisobutene having a number average molecular weight of 1000 to 10000 and polyisobutene having a number average molecular weight of 50000 to 100000 in a mass ratio of 2 to 7:7-13. The waterproof adhesive tape disclosed by the invention is good in flexibility, convenient to attach when used for bonding the frame of the photovoltaic module, good in bonding property, capable of effectively waterproof, high in weather resistance, free of embrittlement, falling and yellowing when used outdoors for a long time, and free of adhesive residue when peeled.
Description
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to a water-blocking adhesive tape for a photovoltaic module frame and a preparation method thereof.
Background
The solar module battery piece is used as a core component of solar power generation, and the packaging is to package the vulnerable solar cells to form a module with better physical characteristics so as to facilitate the large-scale application of solar power generation. Early dual-glass assemblies were of a borderless construction for weight and cost reduction. Compared with a high polymer backboard, the glass water permeability is zero, so that early manufacturers claim that the product can be used for water surface power stations and high-temperature and high-humidity areas, and the service life is as long as 30 years. However, after a period of operation, it was found that moisture was very prone to penetrate through the edges of the photovoltaic module. Delamination of the assembly may result when moisture penetrates the edges of the assembly into the interior of the assembly. Edge sealing of the photovoltaic module is important. However, when the silica gel is used, moisture curing is dependent, and the glue solution in the lamination is unstable, so that the sealing performance of the package is poor, the silica gel is only suitable for being used for double front, and a good scheme for solving the problem of water inflow at the silica gel cracking part in the photovoltaic module is not provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides a water-blocking adhesive tape for a photovoltaic module frame and a preparation method thereof.
The invention provides a water-blocking adhesive tape for a photovoltaic module frame, which comprises a substrate layer, a release layer arranged on the substrate layer and a water-blocking adhesive layer arranged between the substrate layer and the release layer, wherein the water-blocking adhesive layer is prepared from a water-blocking adhesive; the water-blocking adhesive comprises, by weight, 50 parts of butyl rubber, 10-20 parts of polyisobutylene rubber, 5-30 parts of a plasticizer, 3-40 parts of tackifying resin, 1-5 parts of an antioxidant, 0.5-3 parts of an ultraviolet absorbent, 1-6 parts of an anti-aging agent, 0.2-3 parts of a cross-linking agent and 10-60 parts of an inorganic filler; the polyisobutene comprises polyisobutene with a number average molecular weight of 1000-10000 and polyisobutene with a number average molecular weight of 50000-100000; the mass ratio of the polyisobutene with the number average molecular weight of 1000-10000 to the polyisobutene with the number average molecular weight of 50000-100000 is 2-7:7-13.
In one embodiment of the invention, the raw Mooney viscosity ML of the butyl rubber 1+8 40-60. The viscosity of raw rubber and the viscosity of rubber material affect the plasticity of rubber material and the strength and elasticity of vulcanized rubber. The Mooney viscosity is increased, the molecular weight is also increased, the tensile strength of vulcanized rubber is improved, the compression deformation is reduced, the low-temperature recovery property is better, but the process performance is deteriorated, and the calendaring and extrusion are difficult. The dispersing speed of the gas in the polymer is related to the thermal activity of the polymer molecules, and the side methyl groups in the butyl rubber molecular chains are densely displayed, so that the thermal activity of the polymer molecules is limited, and the air permeability is low and the air tightness is good. The butyl rubber molecular chain space structure is spiral, and the methyl groups are more, but each pair of methyl groups scattered on two sides of the spiral are staggered at an angle, so that the butyl rubber molecular chain is still equivalent and gentle, the glass transition temperature is lower, and the elasticity is better.
In one embodiment of the invention, the plasticizer is selected from one or more of coal tar, polyisobutylene, paraffin oil, aromatic hydrocarbon oil, naphthenic oil, petrolatum, pine tar, and coumarone resin. The plasticization of the water-blocking adhesive tape for the photovoltaic module frame means that certain substances are added into rubber, so that acting force among rubber molecules can be reduced, the glass transition temperature of the rubber is reduced, the plasticity and fluidity of the rubber are improved, the molding operations such as calendaring and extrusion are facilitated, and meanwhile, certain physical and mechanical properties of vulcanized rubber can be improved, such as hardness and stretching stress are reduced, higher elasticity and lower heat generation are endowed, and cold resistance is improved.
In one embodiment of the invention, the tackifying resin is selected from rosin and rosin derivative resins and/or terpene resins thereof. The rosin and rosin derivative resin thereof can increase initial tackiness, improve wetting and plasticity, and promote mixing of the filler and the polymer. The terpene resin has the good performances of transparency, innocuity, neutrality, electrical insulation, hydrophobicity, non-crystallization, dilute acid and alkali resistance, heat resistance, light resistance, ageing resistance, strong adhesion and the like, and has good compatibility to various synthetic substances.
In one embodiment of the invention, the antioxidant is selected from aromatic amine antioxidants and/or hindered phenol antioxidants. The addition of a small amount of antioxidant in the rubber system can delay or inhibit the progress of the oxidation process of the polymer, thereby preventing the aging of the polymer and prolonging the service life of the polymer.
In one embodiment of the present invention, the ultraviolet absorber is selected from one or more of salicylate compounds, benzophenone compounds, benzotriazole compounds, and compound absorbers; the compound absorbent comprises a substituted acrylonitrile compound, a triazine compound and a hindered amine compound. The ultraviolet absorber is a light stabilizer capable of absorbing ultraviolet light in sunlight and fluorescent light without itself being changed. As the sun rays contain a large amount of ultraviolet light harmful to colored objects, the wavelength of the ultraviolet light is about 290-460 nm, and the harmful ultraviolet light finally decomposes and fades color molecules through the chemical oxidation-reduction effect, so that the ultraviolet resistance of the rubber product is improved.
In one embodiment of the present invention, the anti-aging agent is selected from one or more of aldehyde-amine compounds, ketone-amine compounds, diarylamines, alkylarylamines, aromatic diprimines, and substituted phenols. The anti-aging agent is a substance capable of delaying the aging of the macromolecular compound. Most of the components can inhibit oxidation, and some components can inhibit heat or light, so that the service life of the product is prolonged.
In one embodiment of the invention, the crosslinking agent is selected from one or more of an organic peroxide, an organometallic compound, and a metal oxide; the organic peroxide is selected from one or more of dicumyl peroxide (DCP), bis (2, 4-dichlorobenzoyl) peroxide (DCBP), di-tert-butyl peroxide (DTBP), dicumyl hydroperoxide (DBHP) and 2, 5-dimethyl-2, 5-di (tert-butyl peroxy) hexane; the organic metal compound is selected from one or more of aluminum isopropoxide, zinc acetate and titanium acetylacetonate; the metal oxide is selected from one or more of zinc oxide, magnesium oxide, lead oxide and calcium oxide.
In one embodiment of the invention, the inorganic filler is selected from one or more of fumed silica, talc, mica powder, calcium carbonate, titanium dioxide, carbon black, hollow glass beads and kaolin. The reinforced rubber inorganic filler is used for rubber, so that the strength of rubber products can be improved, the processing performance of rubber materials can be improved, good wear resistance, tearing resistance, heat resistance, cold resistance, oil resistance and the like of products are provided, and the service life of the products can be prolonged. The non-reinforced rubber inorganic filler is used for rubber and mainly plays roles of filling and compatibilizing.
In one embodiment of the invention, the substrate layer is selected from polyvinyl chloride (PVC) film, polyvinylidene fluoride (PVDF) film, ethylene-tetrafluoroethylene copolymer (ETFE) film, polytrifluoroethylene (PCTFE) film, polytetrafluoroethylene (PTFE) film, polyethylene-chlorotrifluoroethylene copolymer (ECTFE) film, polyimide (PI) film, thermoplastic Polyolefin (TPO) film, thermoplastic polyurethane elastomer (TPU) film, or Polyetheretherketone (PEEK) film. The substrate layer has excellent chemical stability; can resist the corrosion of chemical substances such as acid, alkali, solvent, oxidant and the like, and has excellent corrosion resistance; secondly, the glass fiber reinforced plastic has good thermal stability, can be used at high temperature for a long time, and has higher thermal deformation temperature and hot melting temperature; in addition, the substrate layer has excellent electrical insulation performance and arc resistance, and can work at high voltage and high frequency; meanwhile, the substrate layer has good flexibility, and is convenient for fitting a curved surface irregular object.
In one embodiment of the invention, the substrate layer has a thickness of 25 μm to 100 μm; the thickness of the water-blocking adhesive layer is 100-500 mu m; the thickness of the release layer is 25-150 μm.
The second object of the invention is to provide a preparation method of the water-blocking adhesive tape for the photovoltaic module frame, which comprises the following steps:
s1, carrying out primary banburying on butyl rubber and polyisobutylene rubber, sequentially adding a plasticizer, tackifying resin, an antioxidant, an ultraviolet absorber, an anti-aging agent and an inorganic filler for mixing, and finally adding a cross-linking agent for secondary banburying to obtain a water-blocking adhesive;
s2, coating the water-blocking adhesive in the step S1 on a substrate layer through a hot-melt screw extruder, and compounding a release layer to obtain the water-blocking adhesive tape for the photovoltaic module frame.
In one embodiment of the invention, in S1, the temperature of the primary banburying is 60-80 ℃ for 3-5 min.
In one embodiment of the invention, in S1, the temperature of the mixing is 100-150 ℃ and the time is 20-40 min.
In one embodiment of the present invention, in S1, the temperature of the secondary mixing is 60 ℃ or lower, and the time is 8min to 12min.
In one embodiment of the present invention, in S2, the die temperature of the hot melt screw extruder is 120 ℃ to 160 ℃ and the barrel temperature is 80 ℃ to 100 ℃.
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) The water-blocking adhesive tape for the photovoltaic module frame is matched with butyl rubber and polyisobutylene rubber; the microstructure of the sealing tape is compact by utilizing a large number of entanglement chain segments in the high molecular weight structure of the polyisobutylene rubber, and a large number of side methyl structures cover high active groups in the system, so that the high active groups are prevented from being activated under the action of high temperature, and the degradation of molecular chains is prevented; the disadvantage that an interface is not compatible with components such as filler in a system and the like and a large number of stress concentration points are formed is overcome by utilizing a shorter molecular chain structure in the low molecular weight of the polyisobutylene rubber; thereby improving the lap joint strength, the wet heat aging lap joint strength, the blocking efficiency and the insulativity of the water-blocking adhesive tape for the photovoltaic module.
(2) The waterproof adhesive tape disclosed by the invention is good in flexibility, convenient to attach when used for bonding the frame of the photovoltaic module, good in adhesion, capable of effectively waterproof, high in weather resistance, free of embrittlement, falling and yellowing when used outdoors for a long time, and free of adhesive residue when peeled.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which:
FIG. 1 is a schematic structural view of a water-blocking tape for a photovoltaic module frame according to the present invention;
reference numerals illustrate: 1-release film layer, 2-water-blocking adhesive layer and 3-substrate layer.
Detailed Description
The present invention will be further described in conjunction with the drawings and the detailed embodiments so that those skilled in the art may better understand and practice the invention and it is evident that the described embodiments are only some, but not all, of the embodiments of the invention. It should be understood that the detailed description is intended to illustrate the invention, but is not intended to limit the invention to the particular embodiments disclosed.
In the present invention, unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the present invention, the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items, unless otherwise indicated.
In the present invention, unless otherwise indicated, all the experimental methods used in the examples of the present invention are conventional methods, and materials, reagents and the like used, unless otherwise indicated, are commercially available.
In the present application, unless otherwise indicated, the terms "comprises" and/or "comprising" when used in the present specification specify the presence of stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
Example 1
Referring to fig. 1, the water blocking tape for a photovoltaic module frame of the present embodiment includes a base material layer 3, a water blocking adhesive layer 2 and a release film layer 1, which are sequentially stacked from bottom to top.
Wherein the substrate layer is polyvinylidene fluoride (PVDF) film with thickness of about 65 μm and black color;
the thickness of the water-resistant adhesive layer is about 200 μm;
the release layer is a single-layer release polyester release film, the thickness is about 50 mu m, and the release force of the release surface is about 15gf/25mm.
The water-resistant adhesive comprises the following components in parts by weight: 50 parts of butyl rubber (Yanshan petrochemical, IIR1751, mooney viscosity ML) 1+8 48), 15 parts of polyisobutylene rubber (6 parts of polyisobutylene with a number average molecular weight of 1000-10000, basf, oppanol B10; 9 parts of polyisobutene with the number average molecular weight of 50000-100000, 9 parts of basf, oppanol B30), 5 parts of plasticizer (pine tar, chenopodium crassifolium chemical industry), 20 parts of tackifying resin (terpene resin, hengfeng petrochemical industry, FST-TH 100), 3 parts of antioxidant (aromatic amine antioxidant, komar chemical industry, KT-100 antioxidant), 1.5 parts of ultraviolet absorber (benzotriazole compound, litsea chemical industry, UV-400), 2 parts of age inhibitor (aromatic diprimary amine compound, shanghai addition practice, rubber age inhibitor 445), 0.5 part of cross-linking agent 2, 5-dimethyl-2, 5-di (tert-butyl peroxy) hexane, 30 parts of inorganic filler talcum powder (Jiangyin light source superfine powder, 800 meshes) and 8 parts of inorganic filler carbon black (Mo Hebei pigment carbon black K102).
The preparation of the water-blocking adhesive tape for the photovoltaic module frame specifically comprises the following steps:
s1, firstly, putting butyl rubber into an internal mixer at the temperature of 60 ℃ for plasticating for 5min; then sequentially mixing the plasticizer, the tackifying resin, the antioxidant, the ultraviolet absorbent, the anti-aging agent and the inorganic filler, heating to 150 ℃ for 40min, fully and uniformly mixing, discharging, naturally cooling at room temperature, and standing for 12h; finally, placing the mixture and the cross-linking agent into an internal mixer, banburying for 10min at the temperature of below 55 ℃, discharging glue and discharging to obtain the water-resistant adhesive;
s2, adding the water-blocking adhesive obtained in the step S1 into a hot-melting screw extruder, extruding the water-blocking adhesive to form a water-blocking adhesive coating on a substrate layer, and compounding the water-blocking adhesive coating with a release layer through a compounding roller, wherein the die temperature of the extruder is 140 ℃, and the barrel temperature is 100 ℃, so as to obtain the water-blocking adhesive tape for the photovoltaic module frame.
Example 2
The water-blocking adhesive tape for the photovoltaic module frame of the embodiment comprises a substrate layer 3, a water-blocking adhesive layer 2 and a release film layer 1 which are sequentially laminated from bottom to top.
Wherein the substrate layer is a polyvinylidene fluoride (PVDF) film with a thickness of about 50 μm and a white color;
the thickness of the water-blocking adhesive layer is about 300 μm;
the release layer is a single-layer release polyester release film, the thickness is about 50 mu m, and the release force of the release surface is about 15gf/25mm.
The water-resistant adhesive comprises the following components in parts by weight: 50 parts of butyl rubber (Yanshan petrochemical, IIR1751, mooney viscosity ML) 1+8 48), 15 parts of polyisobutylene rubber (6 parts of polyisobutylene with a number average molecular weight of 1000-10000, basf, oppanol B10; 9 parts of polyisobutene with a number average molecular weight of 50000-100000, pastef, oppanol B30), 5 parts of plasticizer (pine tar, chenopodium chemical industry), 20 parts of tackifying resin (rosin resin, sonchuan industry, HW-100/R), 3 parts of antioxidant (hindered phenol antioxidant, li Anlong, 1010), 1.5 parts of ultraviolet absorber (benzophenone compound, li Anlong, UV-460), 2 parts of an anti-aging agent (aromatic diprimary amine compound, shanghai addition practice, rubber anti-aging agent 445), 0.5 part of cross-linking agent dicumyl peroxide (DCP), 10 parts of inorganic filler fumed silica (Huifu nanometer, HB-139) and 40 parts of inorganic filler calcium carbonate (Changxing macro calcium industry, 1000 meshes).
The preparation of the water-blocking adhesive tape for the photovoltaic module frame specifically comprises the following steps:
s1, firstly, putting butyl rubber into an internal mixer at the temperature of 60 ℃ for plasticating for 5min; then sequentially mixing the plasticizer, the tackifying resin, the antioxidant, the ultraviolet absorbent, the anti-aging agent and the inorganic filler, heating to 150 ℃ for 40min, fully and uniformly mixing, discharging, naturally cooling at room temperature, and standing for 12h; finally, placing the mixture and the cross-linking agent into an internal mixer, banburying for 10min at the temperature of below 55 ℃, discharging glue and discharging to obtain the water-resistant adhesive;
s2, adding the water-blocking adhesive obtained in the step S1 into a hot-melting screw extruder, extruding the water-blocking adhesive to form a water-blocking adhesive coating on a substrate layer, and compounding the water-blocking adhesive coating with a release layer through a compounding roller, wherein the die temperature of the extruder is 140 ℃, and the barrel temperature is 100 ℃, so as to obtain the water-blocking adhesive tape for the photovoltaic module frame.
Comparative example 1 is basically the same as example 1 except that: no butyl rubber is added
The water-blocking adhesive tape for the photovoltaic module frame of the comparative example comprises a substrate layer 3, a water-blocking adhesive layer 2 and a release film layer 1 which are sequentially laminated from bottom to top.
Wherein the substrate layer is polyvinylidene fluoride (PVDF) film with thickness of about 65 μm and black color;
the thickness of the water-resistant adhesive layer is about 200 μm;
the release layer is a single-layer release polyester release film, the thickness is about 50 mu m, and the release force of the release surface is about 15gf/25mm.
The water-resistant adhesive comprises the following components in parts by weight: 15 parts of polyisobutylene rubber (6 parts of polyisobutylene with a number average molecular weight of 1000-10000, basf, oppanol B10; 9 parts of polyisobutene with the number average molecular weight of 50000-100000, 9 parts of basf, oppanol B30), 5 parts of plasticizer (pine tar, chenopodium crassifolium chemical industry), 20 parts of tackifying resin (terpene resin, hengfeng petrochemical industry, FST-TH 100), 3 parts of antioxidant (aromatic amine antioxidant, komar chemical industry, KT-100 antioxidant), 1.5 parts of ultraviolet absorber (benzotriazole compound, litsea chemical industry, UV-400), 2 parts of age inhibitor (aromatic diprimary amine compound, shanghai addition practice, rubber age inhibitor 445), 0.5 part of cross-linking agent 2, 5-dimethyl-2, 5-di (tert-butyl peroxy) hexane, 30 parts of inorganic filler talcum powder (Jiangyin light source superfine powder, 800 meshes) and 8 parts of inorganic filler carbon black (Mo Hebei pigment carbon black K102).
The preparation of the water-blocking tape for the photovoltaic module frame is the same as that of example 2.
Comparative example 2 is basically the same as example 2 except that: without addition of polyisobutene having a number average molecular weight of 1000 to 10000
The water-blocking adhesive tape for the photovoltaic module frame of the comparative example comprises a substrate layer 3, a water-blocking adhesive layer 2 and a release film layer 1 which are sequentially laminated from bottom to top.
Wherein the substrate layer is a polyvinylidene fluoride (PVDF) film with a thickness of about 50 μm and a white color;
the thickness of the water-blocking adhesive layer is about 300 μm;
the release layer is a single-layer release polyester release film, the thickness is about 50 mu m, and the release force of the release surface is about 15gf/25mm.
The water-resistant adhesive comprises the following components in parts by weight: 50 parts of butyl rubber (Yanshan petrochemical, IIR1751, mooney viscosity ML) 1+8 48), 15 parts of polyisobutylene rubber (polyisobutylene with a number average molecular weight of 50000-100000, basf, opanol B30), 5 parts of plasticizer (pine tar, craftsmanship chemical industry), 20 parts of tackifying resin (rosin resin, pine and Sichuan industry, HW-100/R), 3 parts of antioxidant (hindered phenol antioxidant, li Anlong, 1010), 1.5 parts of ultraviolet absorber (benzophenone compound, li Anlong, UV-460), 2 parts of age inhibitor (aromatic diprimary amine compound, shanghai addition practice, rubber age inhibitor 445), 0.5 part of cross-linking agent dicumyl peroxide (DCP), 10 parts of inorganic filler fumed silica (Hufu nanometer, HB-139), and 40 parts of inorganic filler calcium carbonate (Changxing macro calcium industry, 1000 meshes).
The preparation of the water-blocking tape for the photovoltaic module frame is the same as that of example 2.
Comparative example 3 is basically the same as example 2 except that: without addition of polyisobutene having a number average molecular weight of 50000-100000
The water-blocking adhesive tape for the photovoltaic module frame of the comparative example comprises a substrate layer 3, a water-blocking adhesive layer 2 and a release film layer 1 which are sequentially laminated from bottom to top.
Wherein the substrate layer is a polyvinylidene fluoride (PVDF) film with a thickness of about 50 μm and a white color;
the thickness of the water-blocking adhesive layer is about 300 μm;
the release layer is a single-layer release polyester release film, the thickness is about 50 mu m, and the release force of the release surface is about 15gf/25mm.
The water-resistant adhesive comprises the following components in parts by weight: 50 parts of butyl rubber (Yanshan petrochemical, IIR1751, mooney viscosity ML) 1+8 48), 15 parts of polyisobutylene rubber (polyisobutylene with a number average molecular weight of 1000-10000,basf, opanol B10), 5 parts of plasticizer (pine tar, clandestine elvaps chemical), 20 parts of tackifying resin (rosin resin, pine and chun industry, HW-100/R), 3 parts of antioxidant (hindered phenol antioxidant, li Anlong, 1010), 1.5 parts of ultraviolet absorber (benzophenone compound, li Anlong, UV-460), 2 parts of antioxidant (aromatic diprimary amine compound, shanghai addition industry, rubber antioxidant 445), 0.5 part of crosslinking agent dicumyl peroxide (DCP), 10 parts of inorganic filler fumed silica (huifu nanometer, HB-139), and 40 parts of inorganic filler calcium carbonate (Changxing macro industry, 1000 meshes).
The preparation of the water-blocking tape for the photovoltaic module frame is the same as that of example 2.
Test example 1
The coherence properties of the water blocking tapes for the photovoltaic module frames of examples 1-2 and comparative examples 1-2 were tested as follows:
(1) Peel force test: reference is made to the test method of the peel strength of the GB/T2792-2014 adhesive tape;
(2) Mechanical property test: reference is made to a test method of the tensile strength and the elongation at break of the GB/T30776-2014 adhesive tape;
(3) And (3) testing water vapor transmittance: GB/T15331-2020, "pressure sensitive adhesive tape Water vapor Transmission test method";
(4) Aging test: the peeling force is divided into the peeling force of a double 851000H test, the peeling force of a TC200 test and the peeling force of a UV200KWH test; the double 851000H test method is as follows: after the sample is attached to the mirror surface steel plate, placing the sample in a high-temperature high-humidity environment with the temperature of 85+/-2 ℃ and the temperature of 85+/-5% R.H. for 1000 hours, taking out the sample, standing for 2 hours at room temperature, and testing by using the peeling force testing method; TC200 test reference GB/T29848-2013, test method is as follows:
the surface temperature of the sample is 60 ℃ and 5 ℃; the irradiation intensity was 60kWh/m at a wavelength in the range of 280nm to 400nm 2 Accumulating according to the actual irradiation amount of the sample surface, at least every 30kW.h/m 2 Performing ultraviolet power calibration once by using an radiometer to obtain irradiation power accumulation; the method of TC200 testing is as follows: after the sample is attached to the mirror surface steel plate, the sample is respectively placed under the environmental conditions (-40 ℃ to 85 ℃ 1H/cycle,200 cycle),and then taking out the mixture and standing the mixture at room temperature for 2 hours.
The test results are shown in table 1 below:
TABLE 1
As can be seen from Table 1, in example 1 and comparative example 1, the butyl rubber as a main resin has a good water blocking effect, and the side methyl groups in the molecular chain are densely displayed, so that the thermal activity of the polymer molecules is limited, and thus, the air permeability is low, the air tightness is good, and the bonding strength is high. As can be seen from example 2 and comparative examples 2-3, only the high molecular weight polyisobutylene rubber is added, so that the adhesive tape cannot have good adhesive effect due to the reduced viscosity, other properties are better kept, only the low molecular weight polyisobutylene rubber is added, the adhesive tape is higher in room temperature first viscosity, the viscosity is poor at high temperature, the subsequent reliability is poor, the product performance requirements cannot be met, all the polyisobutylene rubbers with different molecular weights are required to be matched, under the synergistic effect between the high molecular weight polyisobutylene and the low molecular weight polyisobutylene, the compact and orderly arrangement of the components such as butyl rubber and polyisobutylene is fully induced and promoted, the sensitivity and the response speed of the molecular chain segments to the stimulus such as moisture, temperature and the like are reduced, and the improvement of the water vapor permeability of the sealant in a high-low temperature environment is facilitated.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. The waterproof adhesive tape for the photovoltaic module frame comprises a substrate layer, a release layer arranged on the substrate layer and a waterproof adhesive layer arranged between the substrate layer and the release layer, and is characterized in that the waterproof adhesive layer is prepared from a waterproof adhesive; the water-blocking adhesive comprises, by weight, 50 parts of butyl rubber, 10-20 parts of polyisobutylene rubber, 5-30 parts of a plasticizer, 3-40 parts of tackifying resin, 1-5 parts of an antioxidant, 0.5-3 parts of an ultraviolet absorbent, 1-6 parts of an anti-aging agent, 0.2-3 parts of a cross-linking agent and 10-60 parts of an inorganic filler; the polyisobutene comprises polyisobutene with a number average molecular weight of 1000-10000 and polyisobutene with a number average molecular weight of 50000-100000; the mass ratio of the polyisobutene with the number average molecular weight of 1000-10000 to the polyisobutene with the number average molecular weight of 50000-100000 is 2-7:7-13.
2. The water blocking tape for a photovoltaic module frame of claim 1, wherein the raw mooney viscosity ML of the butyl rubber 1+8 40-60.
3. The water-resistant tape for photovoltaic module rims according to claim 1, wherein the plasticizer is selected from one or more of coal tar, polyisobutylene, paraffin oil, aromatic hydrocarbon oil, naphthenic hydrocarbon oil, vaseline, pine tar, and coumarone resin.
4. The water blocking tape for a photovoltaic module frame according to claim 1, wherein the tackifying resin is selected from rosin and rosin derivative resins and/or terpene resins thereof.
5. The water-blocking tape for a photovoltaic module frame according to claim 1, wherein the antioxidant is selected from aromatic amine antioxidants and/or hindered phenol antioxidants.
6. The water-blocking tape for a photovoltaic module frame according to claim 1, wherein the ultraviolet absorber is one or more selected from the group consisting of salicylate compounds, benzophenone compounds, benzotriazole compounds and compound absorbers; the compound absorbent comprises a substituted acrylonitrile compound, a triazine compound and a hindered amine compound.
7. The water-blocking tape for a photovoltaic module frame according to claim 1, wherein the anti-aging agent is one or more selected from aldehyde-amine compounds, ketone-amine compounds, diarylamines, alkylarylarylsecondary amines, aromatic diprimines, and substituted phenols.
8. The water-blocking tape for a photovoltaic module frame according to claim 1, wherein the crosslinking agent is one or more selected from the group consisting of organic peroxides, organometallic compounds, and metal oxides; the organic peroxide is selected from one or more of dicumyl peroxide, bis (2, 4-dichlorobenzoyl) peroxide, di-tert-butyl peroxide, dicumyl hydroperoxide and 2, 5-dimethyl-2, 5-di (tert-butyl peroxy) hexane; the organic metal compound is selected from one or more of aluminum isopropoxide, zinc acetate and titanium acetylacetonate; the metal oxide is selected from one or more of zinc oxide, magnesium oxide, lead oxide and calcium oxide.
9. The water-blocking tape for a photovoltaic module frame according to claim 1, wherein the inorganic filler is one or more selected from fumed silica, talc, mica powder, calcium carbonate, titanium dioxide, carbon black, hollow glass beads and kaolin.
10. The method for preparing the water-blocking adhesive tape for the photovoltaic module frame according to any one of claims 1 to 9, comprising the following steps:
s1, carrying out primary banburying on butyl rubber and polyisobutylene rubber, sequentially adding a plasticizer, tackifying resin, an antioxidant, an ultraviolet absorber, an anti-aging agent and an inorganic filler for mixing, and finally adding a cross-linking agent for secondary banburying to obtain a water-blocking adhesive;
s2, coating the water-blocking adhesive in the step S1 on a substrate layer through a hot-melt screw extruder, and compounding a release layer to obtain the water-blocking adhesive tape for the photovoltaic module frame.
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