CN113736395A - High-weather-resistance bonding coating for transparent back plate for solar cell module - Google Patents
High-weather-resistance bonding coating for transparent back plate for solar cell module Download PDFInfo
- Publication number
- CN113736395A CN113736395A CN202010470496.4A CN202010470496A CN113736395A CN 113736395 A CN113736395 A CN 113736395A CN 202010470496 A CN202010470496 A CN 202010470496A CN 113736395 A CN113736395 A CN 113736395A
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- China
- Prior art keywords
- solar cell
- cell module
- acrylate
- transparent back
- curing agent
- Prior art date
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- 238000000576 coating method Methods 0.000 title abstract description 31
- 239000011248 coating agent Substances 0.000 title abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 69
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 20
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 15
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000011256 inorganic filler Substances 0.000 claims abstract description 10
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 10
- 239000012948 isocyanate Substances 0.000 claims abstract description 8
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 4
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 33
- 239000007822 coupling agent Substances 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 229920000728 polyester Polymers 0.000 claims description 14
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000008199 coating composition Substances 0.000 claims description 10
- 238000009736 wetting Methods 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003085 diluting agent Substances 0.000 claims description 9
- 239000011787 zinc oxide Substances 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- RRKXGHIWLJDUIU-UHFFFAOYSA-N 5-bromo-8-chloroisoquinoline Chemical compound C1=NC=C2C(Cl)=CC=C(Br)C2=C1 RRKXGHIWLJDUIU-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- 150000002736 metal compounds Chemical group 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 2
- XQDUGLYPPYVZJM-UHFFFAOYSA-N 2-ethylhexyl prop-2-enoate;2-hydroxyethyl prop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.OCCOC(=O)C=C.CCCCC(CC)COC(=O)C=C XQDUGLYPPYVZJM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 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
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- REOJLIXKJWXUGB-UHFFFAOYSA-N mofebutazone Chemical group O=C1C(CCCC)C(=O)NN1C1=CC=CC=C1 REOJLIXKJWXUGB-UHFFFAOYSA-N 0.000 claims description 2
- 125000005474 octanoate group Chemical group 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 150000007942 carboxylates Chemical class 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 6
- 230000006750 UV protection Effects 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 22
- 239000005038 ethylene vinyl acetate Substances 0.000 description 10
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 9
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 8
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 5
- 239000005022 packaging material Substances 0.000 description 5
- 239000013638 trimer Substances 0.000 description 5
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- 239000003377 acid catalyst Substances 0.000 description 4
- -1 hydroxyl functional group carboxylic ester Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000003851 corona treatment Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 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 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J127/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers
- C09J127/02—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J127/12—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
Abstract
The invention provides a high weather-resistant bonding coating for a transparent back plate for a solar cell module; the curing agent consists of a main agent and a curing agent, wherein the main agent comprises the following components: fluorocarbon resin, acrylic resin, inorganic filler, dispersant, catalyst and solvent; the curing agent comprises the following components: an isocyanate polymer. The invention adds the low-fineness nano filler, improves the ultraviolet aging resistance of the coating, ensures better transparency, and solves the defect of poor ultraviolet resistance of the existing transparent coating.
Description
Technical Field
The invention belongs to the technical field of bonding coatings, and particularly relates to a high-weather-resistance bonding coating for a transparent back plate for a solar cell module.
Background
The battery cell in the conventional solar battery module is sandwiched between a front glass on the sunlight incident side and a solar back sheet disposed on the back side, and is sealed by an encapsulating material, typically an ethylene-vinyl acetate copolymer (EVA) resin. In order to ensure the service life of the solar cell module, the back sheet is required to have good weather resistance and high sealing property with the EVA adhesive layer.
In view of the development requirement of integration of a double-sided photovoltaic power generation assembly and a photovoltaic building, the application of the transparent solar cell back plate is more extensive, and higher strictness is provided for the performance of the transparent solar cell back plate. The back plate not only needs to meet the electrical insulation, moisture resistance and weather resistance of the conventional product, but also needs to have high light transmission and ultraviolet resistance. The transparent back sheet product in the market at present is mainly a transparent PET type back sheet, and is selected as a supporting base film of the back sheet due to its excellent heat resistance, chemical resistance and mechanical properties, and low price. However, since the polyester material and the EVA resin have a large polarity difference, and it is difficult to directly bond them, it is necessary to bond them together through an intermediate adhesive layer. The adhesion between the packaging material and the back plate includes the interface between the polyester base film and the adhesive layer and the interface between the packaging material and the adhesive layer, so that the sealing performance of the assembly can be ensured by simultaneously improving the performance between the two interfaces. The transparent back sheet is mainly classified into a composite type (common KPK and TPT) and a coating type according to the type of the adhesive layer. The composite back plate has high manufacturing cost due to the fact that the fluorine film is used as the bonding layer, the bonding property between the fluorine film and EVA is poor, and the problem of aging and peeling easily occurs when the fluorine film and the polyester base film are bonded through glue in a high-humidity and high-heat environment. The coating type back plate is formed by compounding or coating a fluorine-containing resin material with weather resistance on a polyester base film and drying and curing. Although the adhesive layers mentioned in most prior art patents (CN201410411372, CN201610531615, etc.) satisfy weather resistance and light transmittance, the product cost is high, and in addition, the risk of delamination of the back plate still exists during the use process, and the ultraviolet resistance is poor.
Disclosure of Invention
The invention provides a high-weather-resistance bonding coating for a transparent back plate for a solar cell module, which meets performance requirements such as adhesion, ultraviolet resistance, light transmittance and weather resistance and is low in cost.
The purpose of the invention is realized by the following technical scheme:
the invention provides a high weather-resistant bonding coating composition for a transparent back plate for a solar cell module, which consists of a main agent and a curing agent, wherein the main agent comprises the following components: 10-30 parts of fluorocarbon resin, 10-30 parts of acrylic resin, 2-15 parts of inorganic filler, 0.2-1 part of catalyst, 0.2-2 parts of wetting dispersant and 20-50 parts of anhydrous diluent; the curing agent comprises 50-70 parts by weight of isocyanate curing agent and 30-50 parts by weight of anhydrous diluent. Before use, the two components are premixed according to the ratio of the isocyanate group in the curing agent to the hydroxyl group in the main agent of 0.8-1.4:1 to obtain the high weather resistant adhesive coating.
Further, the fluorocarbon resin is prepared by mixing one or two of solvent-soluble vinylidene chloride type, trifluorochloroethylene type and tetrafluorochloroethylene type fluorocarbon resins according to any proportion. The hydroxyl value of the fluorocarbon resin is 50-70mgKOH/g, the acid value is less than or equal to 10mgKOH/g, the solid content is more than or equal to 55 percent, and the fluorine content is about 15-35 percent by weight.
Further, the acrylic resin comprises one or more of (meth) acrylate-hydroxyethyl acrylate copolymer, methyl (meth) acrylate-butyl acrylate-hydroxyethyl acrylate copolymer, methyl (meth) acrylate-n-octyl acrylate-hydroxyethyl acrylate copolymer, methyl (meth) acrylate-2-ethylhexyl acrylate-hydroxyethyl acrylate, and (meth) acrylate- (stearyl (meth) acrylate-hydroxyethyl acrylate copolymer, which are mixed according to any proportion. Of these, 2-ethylhexyl acrylate (meth) acrylate is most preferred.
Further, the inorganic filler is formed by mixing one or more of calcium carbonate, zinc oxide, silicon dioxide, magnesium carbonate, wax powder, kaolin, barium sulfate, carbon black, talcum powder, ceramic micro powder, white corundum and alumina according to any proportion.
Further, the inorganic filler is treated by a functional coupling agent, and the functional coupling agent comprises one or more of an aluminate coupling agent, a zirconate coupling agent, a titanate coupling agent, an aluminum-zirconate coupling agent and an aluminum-titanate coupling agent which are mixed according to any proportion. Among them, rutile type titanium dioxide treated with an aluminum-zirconate coupling agent is most preferable.
Furthermore, the particle size of the inorganic filler is 100-1000 nm. The nano-grade filler has small particle size, can reflect or diffuse ultraviolet rays, can absorb part of the ultraviolet rays, and also ensures the dispersion stability in the coating.
Further, the catalyst is a metal compound catalyst; the metal compound catalyst comprises one or more of stannous octoate, dibutyltin dilaurate, dioctyltin dilaurate, monobutyl triisotin octoate and zinc isooctoate which are mixed according to any proportion.
Furthermore, the wetting dispersant is prepared by mixing one or more of copolymer solution containing acid groups, acrylic block copolymer, hydroxyl functional group carboxylic ester, hyperbranched structure polyester and block copolymer solution of polyamine according to any proportion. Among them, most preferred is an acid group-containing copolymer solution such as BYK chemical BYK 111.
Furthermore, the anhydrous diluents in the main agent and the curing agent are respectively one or more than two of the following solvents which are mixed according to any proportion: toluene, xylene, n-butyl acetate, ethyl acetate, butanone, cyclohexanone, methyl ethyl ketone, propylene glycol methyl ether acetate. More preferably one or a mixture of two or more of the following: toluene, xylene, butyl acetate, butanone, propylene glycol methyl ether acetate.
Further, the isocyanate curing agent is an aliphatic isocyanate oligomer. The aliphatic isocyanate oligomer comprises one or more than two of 1, 6-Hexamethylene Diisocyanate (HDI), isophorone diisocyanate (IPDI) tripolymer, 1, 6-Hexamethylene Diisocyanate (HDI) tripolymer and 1, 6-Hexamethylene Diisocyanate (HDI) biuret which are mixed according to any ratio. The isocyanate curing agent is diluted with a non-aqueous diluent and used. Of these, 1, 6-Hexamethylene Diisocyanate (HDI) trimer is most preferable.
Compared with the prior art, the invention has the following beneficial effects:
1) according to the invention, the nano filler with low particle size (100-1000nm) and subjected to surface treatment is added into the bonding coating, so that the ultraviolet shielding rate is obviously improved and the ultraviolet aging resistance of the finished backboard is improved under the condition of ensuring better transmittance;
2) the invention provides a high-weatherability coating used as a bonding layer of a transparent solar cell back plate, the side chain of the used acrylic resin contains a longer carbon chain, which can enhance the winding with the molecular chain of EVA resin, and in addition, the main chain of the acrylic resin contains more ester bond groups, which is beneficial to improving the adhesive force of the acrylic resin on a polyester base film; meanwhile, after the polyester basal membrane is subjected to corona treatment, the surface of the polyester basal membrane contains a large number of hydroxyl and carboxyl active collective groups, and the isocyanate curing agent in the component B can form chemical bonding with the bonding layer, so that the adhesion of the bonding layer and the polyester basal membrane is further enhanced;
3) the coating prepared by the invention can give consideration to the cohesiveness with the polyester base film and the packaging material, has high peel strength, excellent weather resistance and durability, and simultaneously greatly reduces the manufacturing cost of the coating due to the introduction of the acrylate.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The main agent in the invention can be prepared by the following method: weighing anhydrous diluent, sequentially adding fluorocarbon resin, modified acrylic resin, inorganic filler and wetting dispersant, uniformly dispersing at a high speed, pouring into a sand mill, and milling until the particle fineness is less than or equal to 2 mu m; adding catalyst, adding anhydrous diluent until the solid content reaches 50%, mechanically mixing uniformly, filtering, sealing and filling in a drying container.
The specific application of the high weather-resistant bonding coating on the solar module is as follows: coating the bonding coating on a polyester base film to prepare a high-bonding back plate; and laminating the prepared high-adhesion back plate with the battery component through a packaging material. The average thickness of the polyester-based film is 100-300 mu m, and the used material is mainly polyethylene terephthalate (PET); the encapsulating material is mainly ethylene-vinyl acetate copolymer (EVA).
The polyester basal membrane is required to be subjected to surface treatment before being coated with the bonding coating, and flame treatment, atmospheric pressure plasma treatment, corona treatment, low-pressure plasma treatment, ultraviolet treatment and the like can be selected; corona treatment is furthermore preferred, for a time of 1 to 10 s; the coating mode can be selected from roll coating, spray coating, dip coating and brush coating; the coating thickness is 5-30 μm, the curing temperature is 150-200 ℃, and the curing time is 5-15 min.
Example 1
The embodiment provides a high weather-resistant bonding coating for a transparent back plate for a solar cell module, which consists of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Shanghai Shengwei trade Co., Ltd SW-5570) | 30 |
| Acrylic resin (Mitsubishi chemical 7765) | 17.3 |
| Nano TiO2 (Beijing Germany island gold science and technology Co., Ltd DK-TiO2-T30Q) | 2 |
| Wetting dispersant (bike chemical BYK111) | 0.2 |
| Dibutyltin dilaurate (Jinan Haiyuan chemical industry Co., Ltd. T12) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| HDI trimer (Wanhua chemical HT-100) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/10.
Note: the nano TiO2 of the embodiment and the embodiment 2 and the nano zinc oxide of the following embodiments 3 and 4 are respectively impregnated by an aluminum-zirconate coupling agent.
Example 2
The embodiment provides a high weather-resistant bonding coating for a transparent back plate for a solar cell module, which consists of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Dongfluoromethan ZHM-2) | 10 |
| Acrylic resin (BOLIER CHEMICAL CO. Co., Ltd BM51) | 30 |
| Nano TiO2 (Beijing Germany island gold science and technology Co., Ltd DK-TiO2-T30Q) | 8 |
| Wetting dispersant (excited Europe chemical material Co., Ltd., NEO-1015) | 1 |
| Stannous octoate catalyst (evergreen chemical Co., Ltd.) | 1 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| HDI trimer (Jichuan Baichuan chemical Co., Ltd.) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/8.
Example 3
The embodiment provides a high weather-resistant bonding coating for a transparent back plate for a solar cell module, which consists of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Dajin fluorine chemical company GK570) | 27.5 |
| Acrylic resin (Gaoming Tongde chemical ACR6730) | 10 |
| Nanometer zinc oxide (Beijing deke island gold DK-ZnO-15) | 10 |
| Moistening dispersant (Shi shou material Co., Ltd 9220) | 2 |
| Stannous octoate catalyst (evergreen chemical industry) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| IPDI trimer (winning Chuang De Gusai B1358A) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/10.
Example 4
The embodiment provides a high weather-resistant bonding coating for a transparent back plate for a solar cell module, which consists of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Wanbo paint chemical industry Co., Ltd. L101) | 25 |
| Acrylic resin (Gaoming Tongde chemical ACR6730) | 15 |
| Nano ZnO (Hangzhou Hengna new material, Inc. HN-J90) | 10 |
| Wetting dispersant (bike chemical BYK-163) | 0.8 |
| Triisooctanoic acid catalyst (evergreen chemical Co., Ltd.) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| IPDI trimer (Germany Bayer company Z4470BA) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/15.
Comparative example 1
The comparative example provides a tie coat for a transparent backsheet for a solar cell module, consisting of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Wanbo paint chemical industry Co., Ltd. L101) | 25 |
| Acrylic resin (Gaoming Tongde chemical ACR6730) | 15 |
| Nano ZnO (without coupling agent treatment) | 10 |
| Wetting dispersant (bike chemical BYK-163) | 0.8 |
| Triisooctanoic acid catalyst (evergreen chemical Co., Ltd.) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| IPDI trimer (Germany Bayer company Z4470BA) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/10.
Comparative example 2
The comparative example provides a tie coat for a transparent backsheet for a solar cell module, consisting of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Wanbo paint chemical industry Co., Ltd. L101) | 31 |
| Acrylic resin (Gaoming Tongde chemical ACR6730) | 19 |
| Triisooctanoic acid catalyst (evergreen chemical Co., Ltd.) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| IPDI trimer (winning Chuang De Gusai B1358A) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/15.
Comparative example 3
The comparative example provides a tie coat for a transparent backsheet for a solar cell module, consisting of a main agent and a curing agent; the main agent comprises the following components (in parts by weight):
| fluorocarbon resin (Wanbo paint chemical industry Co., Ltd. L101) | 40 |
| Nano ZnO (without coupling agent treatment) | 10 |
| Wetting dispersant (bike chemical BYK-163) | 0.8 |
| Triisooctanoic acid catalyst (evergreen chemical Co., Ltd.) | 0.5 |
| Acetic acid butyl ester | 50 |
The curing agent comprises the following components:
| HDI trimer (Jichuan chemical industry Limited cock)Driver) | 50 |
| Acetic acid butyl ester | 50 |
The weight ratio of the main agent to the curing agent is 100/10.
Performance testing
The test method is as follows:
1. resistance to wet heat aging:
the damp heat ageing test was carried out according to the test method GB/T2423.3. The experimental conditions are as follows: +85 ℃ and 85% relative humidity. The adhesive force of the sample is tested according to the standard of ISO-2409-2007 before and after the experiment; the yellowing index (Delta YI) of the specimen is measured according to the national standard GB 2409-80.
2. Peeling strength of back plate and EVA (ethylene vinyl acetate) adhesive film
The peel strength values were recorded according to the national standard GB/T2790-1995.
3. Ultraviolet irradiation resistance
And (3) testing conditions are as follows: the cumulative irradiation energy UV is 150kwh/m2, the air temperature is 60 ℃, and the irradiance is 45w/m 2; the weatherable adhesive layer was facing the UV lamp during the UV test.
TABLE 1 Performance test results of examples and comparative examples
Compared with the data in the table 1, the coating type transparent solar cell back plate prepared by the high-adhesion weather-resistant coating provided by the invention has high peel strength with a packaging material, can still maintain high peel strength after high-temperature damp-heat aging for 200 hours, and has good adhesive force and yellowing index within 3.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. The high-weather-resistance bonding coating composition for the transparent back plate for the solar cell module is characterized by consisting of a main agent and a curing agent, wherein the main agent comprises the following components: 10-30 parts of fluorocarbon resin, 10-30 parts of acrylic resin, 2-15 parts of inorganic filler, 0.2-1 part of catalyst, 0.2-2 parts of wetting dispersant and 20-50 parts of anhydrous diluent; the curing agent comprises 50-70 parts by weight of isocyanate curing agent and 30-50 parts by weight of anhydrous diluent.
2. The highly weather-resistant primer composition for transparent back sheets for solar cell modules according to claim 1, wherein the fluorocarbon resin is one or two of solvent-soluble vinylidene chloride type, trifluorochloroethylene type, and tetrafluorochloroethylene type fluorocarbon resins mixed at an arbitrary ratio.
3. The highly weather-resistant adhesive coating composition for a transparent back sheet for a solar cell module according to claim 1, wherein the acrylic resin comprises one or more of (meth) acrylate-hydroxyethyl acrylate copolymer, (meth) acrylate-butyl acrylate-hydroxyethyl acrylate copolymer, (meth) acrylate-n-octyl acrylate-hydroxyethyl acrylate copolymer, (meth) acrylate-2-ethylhexyl acrylate-hydroxyethyl acrylate, and (meth) acrylate- (stearyl (meth) acrylate-hydroxyethyl acrylate copolymer, mixed in an arbitrary ratio.
4. The highly weather-resistant adhesive coating composition for a transparent back sheet for a solar cell module as claimed in claim 1, wherein the inorganic filler is composed of one or more of calcium carbonate, zinc oxide, silica, magnesium carbonate, wax powder, kaolin, barium sulfate, carbon black, talc, ceramic fine powder, white corundum, and alumina, which are mixed in an arbitrary ratio.
5. The highly weather-resistant bond coating composition for a transparent back sheet for a solar cell module according to claim 4, wherein the inorganic filler is treated with a functional coupling agent comprising one or more of an aluminate coupling agent, a zirconate coupling agent, a titanate coupling agent, an aluminum-zirconate coupling agent, and an aluminum-titanate coupling agent, which are mixed in an arbitrary ratio.
6. The highly weather-resistant adhesive coating composition for a transparent back sheet for a solar cell module according to claim 1, wherein the inorganic filler has a particle size of 100 to 1000 nm.
7. The highly weatherable tie-coat composition for a transparent back sheet for a solar cell module according to claim 1, wherein the catalyst is a metal compound catalyst; the metal compound catalyst comprises one or more of stannous octoate, dibutyltin dilaurate, dioctyltin dilaurate, monobutyl triisotin octoate and zinc isooctoate which are mixed according to any proportion.
8. The highly weather-resistant adhesive coating composition for a transparent back sheet for a solar cell module as claimed in claim 1, wherein the wetting dispersant is composed of one or more of a copolymer solution containing an acidic group, an acrylic block copolymer, a hydroxyl functional carboxylate, a highly branched structure polyester, and a block copolymer solution of a polyamine, which are mixed in an arbitrary ratio.
9. The highly weatherable bond coating composition for a transparent back sheet for a solar cell module according to claim 1, wherein the non-aqueous diluent of the main agent and the curing agent is one or more of the following solvents, respectively, and the solvents are mixed in any ratio: toluene, xylene, n-butyl acetate, ethyl acetate, butanone, cyclohexanone, methyl ethyl ketone, propylene glycol methyl ether acetate.
10. The highly weather-resistant adhesive coating composition for a transparent back sheet for a solar cell module as claimed in claim 1, wherein the highly weather-resistant adhesive coating composition is obtained by premixing the two components in such an amount that the ratio of the amount of the isocyanate group in the curing agent to the amount of the hydroxyl group in the main agent is 0.8 to 1.4:1 before use.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114921133A (en) * | 2022-05-27 | 2022-08-19 | 苏州顺为材料科技有限公司 | Wear-resistant solvent-resistant fluorocarbon coating for photovoltaic module and application method thereof |
| CN115926546A (en) * | 2022-12-29 | 2023-04-07 | 苏州赛伍应用技术股份有限公司 | Single-component weather-resistant coating and application thereof |
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| CN106010414A (en) * | 2016-06-30 | 2016-10-12 | 杭州福斯特光伏材料股份有限公司 | High-cohesiveness fluorocarbon coating and application |
| CN109735177A (en) * | 2018-12-07 | 2019-05-10 | 乐凯胶片股份有限公司 | A kind of solar cell backboard coating |
| CN110922826A (en) * | 2019-11-14 | 2020-03-27 | 乐凯胶片股份有限公司 | High-transparency weather-resistant coating and solar cell back plate |
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| WO2009113318A1 (en) * | 2008-03-13 | 2009-09-17 | 株式会社日本触媒 | Solar cell module backsheet |
| CN106010414A (en) * | 2016-06-30 | 2016-10-12 | 杭州福斯特光伏材料股份有限公司 | High-cohesiveness fluorocarbon coating and application |
| CN109735177A (en) * | 2018-12-07 | 2019-05-10 | 乐凯胶片股份有限公司 | A kind of solar cell backboard coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114921133A (en) * | 2022-05-27 | 2022-08-19 | 苏州顺为材料科技有限公司 | Wear-resistant solvent-resistant fluorocarbon coating for photovoltaic module and application method thereof |
| CN115926546A (en) * | 2022-12-29 | 2023-04-07 | 苏州赛伍应用技术股份有限公司 | Single-component weather-resistant coating and application thereof |
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