CN107312489A - Solar cell backboard Adhesive composition and preparation method thereof - Google Patents
Solar cell backboard Adhesive composition and preparation method thereof Download PDFInfo
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- CN107312489A CN107312489A CN201710620431.1A CN201710620431A CN107312489A CN 107312489 A CN107312489 A CN 107312489A CN 201710620431 A CN201710620431 A CN 201710620431A CN 107312489 A CN107312489 A CN 107312489A
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- Prior art keywords
- solar cell
- adhesive composition
- cell backboard
- performed polymer
- polymer component
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- 239000000853 adhesive Substances 0.000 title claims abstract description 57
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 57
- 239000000203 mixture Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229920000642 polymer Polymers 0.000 claims abstract description 34
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 27
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 21
- 239000011737 fluorine Substances 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 20
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 20
- 239000004645 polyester resin Substances 0.000 claims abstract description 13
- 229920001225 polyester resin Polymers 0.000 claims abstract description 13
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical group O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013638 trimer Substances 0.000 claims abstract description 8
- 239000006096 absorbing agent Substances 0.000 claims abstract description 7
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 10
- 230000009477 glass transition Effects 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- -1 3,5- Di-t-butyl -4- hydroxy-benzoic acids cetyl ester Chemical class 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 150000008301 phosphite esters Chemical class 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 125000005936 piperidyl group Chemical group 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- PZRWFKGUFWPFID-UHFFFAOYSA-N 3,9-dioctadecoxy-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound C1OP(OCCCCCCCCCCCCCCCCCC)OCC21COP(OCCCCCCCCCCCCCCCCCC)OC2 PZRWFKGUFWPFID-UHFFFAOYSA-N 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims 1
- 239000012965 benzophenone Substances 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract description 19
- 239000002033 PVDF binder Substances 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000001723 curing Methods 0.000 description 22
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 22
- 239000010408 film Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 19
- 239000012528 membrane Substances 0.000 description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 description 14
- 239000002904 solvent Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 229920002799 BoPET Polymers 0.000 description 8
- 238000007711 solidification Methods 0.000 description 8
- 230000008023 solidification Effects 0.000 description 8
- 230000032683 aging Effects 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 235000006708 antioxidants Nutrition 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003852 triazoles Chemical class 0.000 description 2
- QHTJSSMHBLGUHV-UHFFFAOYSA-N 2-methylbutan-2-ylbenzene Chemical class CCC(C)(C)C1=CC=CC=C1 QHTJSSMHBLGUHV-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000001293 FEMA 3089 Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 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
- 238000001035 drying Methods 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The present invention relates to a kind of solar cell backboard Adhesive composition and preparation method thereof, the composition includes performed polymer component and curing component, and the performed polymer component includes the following composition counted by weight：1~5 part of PMMA particles；35~45 parts of polyester resin；0.1~1 part of antioxidant；0.1~2 part of UV absorbers；5~15 parts of toluene；20~60 parts of ethyl acetate；The curing component is hexamethylene diisocyanate trimer.The advantage of the invention is that：Because PMMA particles are consistent with the main component in PVDF fluorine films, thus during test peeling force, glue-line is greatly increased with fluorine film adhesive force, so as to improve the overall peeling force of backboard, peel strength is higher than 8N/cm after curing.
Description
Technical field
The present invention relates to a kind of solar cell backboard Adhesive composition and preparation method thereof, belong to solar cell
Backboard adhesive technical field.
Background technology
In recent years, with global mechanization, the raising of modernization level, the demand of the energy continues to increase.Photovoltaic industry
As the important component of regenerative resource, by as the main method for solving global energy crisis.
The Special use environment of photovoltaic products, proposes higher requirement to its each corresponding part, for example, exists
Ageing-resistant, high-low temperature resistant, hydrolytic resistance, it is resistance to puncture in terms of have strict standard.Wherein, backboard is that photovoltaic module was produced
One of most important encapsulation raw material in journey.The characteristic of backboard directly determines the outward appearance and service life of photovoltaic module.
There are the backboard product of various structures, such as TPT, TPE, AAA, PET, application type currently on the market.It is two-sided to contain fluorine
The TPT types of film are still preferred on high-end photovoltaic module.Because the three-decker (fluorine film/PET/ fluorine films) of such backboard needs
Formed by adhesive to bond, therefore the adhesion strength between PET film (P) and fluorine film (T) is also the main of industry all the time
Puzzlement.Existing adhesive all has more or less defect, the bonding action of such as adhesive not enough and ageing-resistant performance without
Method meets demand of existing market etc., therefore develops a class to other materials two-phase interfaces such as PET film in backboard and fluorine films
Bond strength is high, while in resistance to ag(e)ing, alkaline-resisting, resistance to gasoline, it is water-fast in terms of all show the gluing of excellent combination property
Agent is the problem that solar cell package industry is urgently solved.
CN 104403602A are disclosed and a kind of solar energy backboard glue and preparation method thereof, belong to too adhesive technology neck
Domain, the solar energy backboard glue includes the following raw material：Ethylene-vinyl acetate copolymer emulsion, polyaminoester emulsion, epoxy resin, polyethylene
Alcohol, turpentine oil, talcum powder, ethylenediamine tetra-acetic acid, magnesium stearate, isopropanol, water.The glue of the component formation of the invention is more soft
It is soft, the functional of steam is obstructed, but peel strength is general, the requirement of national standard is only met, however as solar energy industry
Burst is risen, and the requirement to glue peel strength is also increasingly improved, and the requirement for only reaching national standard is also not nearly enough.
CN 102391821A disclose plant pearl Aqueous Polyurethane Adhesives and preparation method thereof, belong to adhesive
Preparation field.After the adhesive PPG and isocyanate reaction certain time, add epoxy resin, hydrophilic chain extender and
Diglycol, reaction certain time generation performed polymer adds solvent reduction performed polymer viscosity, then by neutralizing into salt, breast
Change and secondary chain extension, then vacuum sloughs solvent and host is made；It is mixed with curing agent in constant weight ratio, that is, is made
Plant pearl Aqueous Polyurethane Adhesives.This method improves it by the PPG from hydrolysis by epoxide modified
Hydrolytic resistance, and the glued membrane of system is not tacky, adhesion strength is moderate, is the plant pearl aqueous polyurethane gluing of a excellent performance
Agent.The addition of excessive epoxy resin can cause the fragility of resulting adhesive for polyurethane to increase, shock resistance reduction, shadow
The use of adhesive for polyurethane is rung.
The content of the invention
For defect of the prior art, combined it is an object of the invention to provide a kind of solar cell backboard with adhesive
Thing and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions：
In a first aspect, the invention provides a kind of solar cell backboard Adhesive composition, including performed polymer component
And curing component, the performed polymer component includes the following composition counted by weight：
The curing component is hexamethylene diisocyanate trimer.
In the performed polymer component, PMMA particles adding proportion is partially hard if glue-line after adhesive crosslinking if being higher than 5 parts, cohesion
Power is excessive, and test peel strength can the phenomenon shaken of peeling-off curve.If polyester resin ratio is less than 35 parts, for PET
With PVDF fluorine film adhesive force is too low can not meet requirement；Hydrolytic resistance is not enough to reach higher requirement if higher than 45 parts.It is anti-
If oxygen agent ratio is less than 0.1 part, effect is not obvious enough；Peeling force can decline if higher than 1 part.If UV absorbers ratio is few
In 0.1 part, effect is not obvious enough；Peeling force can decline if higher than 2 parts.
The specific selection toluene of solvent and ethyl acetate, because both solvents are to polyester and PMMA particle dissolubilities
It is good, and its solvent volatilization gradient is suitable, and flow leveling can be effectively ensured.According to other solvents, then flow leveling can be caused to become
Difference.
Preferably, the melt flow rate of the PMMA particles is 8-12g/10min, and glass transition temperature is 60-80 DEG C.
Preferably, the number-average molecular weight of the polyester resin is that 9000~15000, hydroxyl value is 5~15 and glass transition temperature
At -10~10 DEG C.
In the melt flow rate and glass transition temperature of the PMMA particles, the molecular weight of polyester resin, hydroxyl value and glass transition temperature
Any parameter when exceeding the scope, can cause adhesive hydraulic performance decline, adhesion strength reduction or occur when peeling off is slided existing
As causing hydraulic performance decline, not reaching optimum performance.
Preferably, the antioxidant is 2,2 '-methylene-bis--(4- methyl-6-terts butyl) phenol, 2,2 '-methylene-
Double-(the 4- ethyl -6- tert-butyl groups) phenol, 1,3,5- tri- (the 4- tert-butyl group -3- hydroxyl -2,6- dimethyl benzyls) -1,3,5- three
Piperazine -2,4,6- (1H, 3H, 5H)-triketone, 3,5- di-t-butyl -4- hydroxy-benzoic acids cetyl ester, distearyl Ji Wusi
Alcohol diphosphites, three (2,4- tert-butyl-phenyls) phosphite esters, three (1,2,2,6- pentamethyl -4-4 piperidyls) phosphite esters
In one or more.
Preferably, the UV absorbers include 2- (2 '-hydroxyl -3 '-the tert-butyl group -5 '-aminomethyl phenyl) -5- chlorobenzenes
And triazole, 2- (the tertiary base phenyl of the fourths of 2- hydroxyls -3,5- two) -5- chlorinated benzotriazoles, 2- (2 '-hydroxyl -3 ', 5 '-two tert-amyl benzenes
Base) at least one of BTA or 2-hydroxy-4-n-octoxybenzophenone.
Preferably, the weight ratio of the performed polymer component and curing component is (20-24):1.
Preferably, the preparation method of the performed polymer component comprises the following steps：
PMMA particles are dissolved in toluene in case of heating, solution A is formed；The heating-up temperature is 45~55 DEG C；
Polyester resin ethyl acetate is dissolved, solution B is formed；
Solution A, solution B, antioxidant, UV absorbers are mixed in proportion, you can.
On the other hand, the invention provides a kind of preparation method of solar cell backboard Adhesive composition, including
Following steps：
By performed polymer component and curing component according to (20-24):1 weight can be applied than mixing after stirring 25-35min
Cloth is used.
On the other hand, the invention provides a kind of solar cell backboard Adhesive composition in photovoltaic back is prepared
Application.
Preferably, described solar cell backboard Adhesive composition is preparing the two-sided compound light for fluorine film layer
Lie prostrate the application in backboard.
The interlayer that the Adhesive composition of the present invention is applied to various photovoltaic backs is crosslinked.It is particularly suitable for use in Dual-side compound
Photovoltaic back.It is best suited for the two-sided compound photovoltaic back for fluorine film layer.With the two-sided compound photovoltaic back for fluorine film layer
Exemplified by, its preparation method is：It is coated with adhesive with the mode of scraper for coating respectively on PET base material two sides, and compound fluorine film is formed
Two-sided fluorine film backboard, passes through a matt metallic roll and the glue of silicon rubber by the two-sided fluorine photovoltaic back for having cured completion afterwards
Roller group is closed, and two roll gap pressures are at 1.5~5.5 kilograms, and the surface temperature of metallic roll is 90~120 DEG C, the surface temperature of rubber rollers
For 100~150 DEG C, process face is the surface contacted with metallic roll.The coating weight of adhesive is 7~12g/m2。
Compared with prior art, the present invention has following beneficial effect：It can be sent out during test peel strength in the past
When existing PVDF fluorine films are peeled off with PET, be bonded in PET faces during glue-line, when and be bonded in PVDF fluorine films face, but when there are the latter's feelings
During condition, peel strength is often very high.Therefore by introducing PMMA particles in the present invention, the particle is PVDF fluorine films processing film forming
In main film forming matter, glue-line is bonded in PVDF fluorine films face every time when peeling off after addition, and due to PMMA high cohesion,
The factor of comprehensive two aspects considerably increases peel strength, and initial bonding strength is up to more than 8N/cm, reaches top in industry
Level.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Following examples provide a kind of solar cell backboard Adhesive composition, including performed polymer component and solidification
Component, the performed polymer component includes the following composition counted by weight：
The curing component is hexamethylene diisocyanate trimer.
The melt flow rate of the PMMA particles is 8-12g/10min, and glass transition temperature is 60-80 DEG C.
The number-average molecular weight of the polyester resin be 9000~15000, hydroxyl value be 5~15 and glass transition temperature -10~
10℃。
The antioxidant is 2,2 '-methylene-bis--(4- methyl-6-terts butyl) phenol, 2,2 '-methylene-bis--(4- second
Base -6- the tert-butyl groups) phenol, 1,3,5- tri- (the 4- tert-butyl group -3- hydroxyl -2,6- dimethyl benzyls) -1,3,5- triazines -2,4,6-
(1H, 3H, 5H)-triketone, 3,5- di-t-butyl -4- hydroxy-benzoic acids cetyl ester, distearyl pentaerythrite diphosphorous acid
Ester, three (2,4- tert-butyl-phenyls) phosphite esters, one kind in three (1,2,2,6- pentamethyl -4-4 piperidyls) phosphite esters or
It is several.
The UV absorbers include 2- (2 '-hydroxyl -3 '-the tert-butyl group -5 '-aminomethyl phenyl) -5- chlorinated benzotriazoles,
2- (the tertiary base phenyl of the fourths of 2- hydroxyls -3,5- two) -5- chlorinated benzotriazoles, 2- (2 '-hydroxyl -3 ', 5 '-di-tert-pentyl-phenyl) benzo
At least one of triazole or 2-hydroxy-4-n-octoxybenzophenone.
The weight ratio of the performed polymer component and curing component is (20-24):1.
The preparation method of the performed polymer component comprises the following steps：
PMMA particles are dissolved in toluene in case of heating, solution A is formed；The heating-up temperature is 45~55 DEG C；
Polyester resin ethyl acetate is dissolved, solution B is formed；
Solution A, solution B, antioxidant, UV absorbers are mixed in proportion, you can.
The preparation method of the solar cell backboard Adhesive composition, comprises the following steps：
By performed polymer component and curing component according to (20-24):1 weight can be applied than mixing after stirring 25-35min
Cloth is used.
Embodiment 1
The present embodiment is related to a kind of solar cell backboard adhesive：By performed polymer component (A) and curing component (B) group
Into, wherein performed polymer component by 1wt% PMMA particles, 26wt% hydroxy polyester resin, 0.5wt% antioxidant 1010,
1wt% irgasfos 168,1.5wt% ultra-violet absorber 234,5wt% toluene, 65wt% ethyl acetate diluent are mixed
Conjunction is uniformly made, and curing component is hexamethylene diisocyanate trimer；Performed polymer component and curing component are pressed 20:1
After weight is than being well mixed, adhered material material PET film surface is coated uniformly on by automating continuous forming process, resin added
For 10g/m2, after the pvdf membrane for upper 25 μ m-thick of after solvent volatile dry, fitting, by 250 μm of PET/ adhesive/25 μm pvdf membranes
Order is put into baking oven, and solidification temperature is 90 DEG C, and hardening time is 2min, is put into 60 DEG C of baking ovens and is cured 2 days.
Embodiment 2
The present embodiment is related to a kind of solar cell backboard adhesive：By performed polymer component (A) and curing component (B) group
Into, wherein performed polymer component by 2wt% PMMA particles, 27wt% hydroxy polyester resin, 0.1wt% antioxidant 1076,
The well mixed system of 0.4wt% irgasfos 168,0.5wt% UV-531,5wt% toluene, 65wt% ethyl acetate diluent
Into curing component is hexamethylene diisocyanate trimer；Performed polymer component and curing component are pressed 20:1 weight is than mixed
After closing uniformly, adhered material material PET film surface is coated uniformly on by automating continuous forming process, resin added is 10g/
m2, after the pvdf membrane for upper 25 μ m-thick of after solvent volatile dry, fitting, put by 250 μm of PET/ adhesive/25 μm pvdf membrane order
Enter in baking oven, solidification temperature is 90 DEG C, and hardening time is 2min, be put into 60 DEG C of baking ovens and cure 2 days.
Embodiment 3
The present embodiment is related to a kind of solar cell backboard adhesive：By performed polymer component (A) and curing component (B) group
Into, wherein performed polymer component by 3wt% PMMA particles, 24wt% hydroxy polyester resin, 1wt% antioxidant 1076,
2wt% UV-326,10wt% toluene, 60wt% ethyl acetate diluent are well mixed to be made, and curing component is six methylenes
Group diisocyanate tripolymer；Performed polymer component and curing component are pressed 22:After 1 weight is than being well mixed, pass through automation
Continuous forming process is coated uniformly on adhered material material PET film surface, and resin added is 10g/m2, after after solvent volatile dry,
The pvdf membrane of upper 25 μ m-thick of laminating, is put into baking oven, solidification temperature is 90 by 250 μm of PET/ adhesive/25 μm pvdf membrane order
DEG C, hardening time is 2min, is put into 60 DEG C of baking ovens and cures 2 days.
Embodiment 4
The present embodiment is related to a kind of solar cell backboard adhesive：By performed polymer component (A) and curing component (B) group
Into, wherein performed polymer component by 5wt% PMMA particles, 23wt% hydroxy polyester resin, 0.4wt% antioxidant 1010,
The well mixed system of 1wt% anti-oxidant DLTP, 0.6wt% UV-327,15wt% toluene, 55wt% ethyl acetate diluent
Into curing component is hexamethylene diisocyanate trimer；Performed polymer component and curing component are pressed 24:1 weight is than mixed
After closing uniformly, adhered material material PET film surface is coated uniformly on by automating continuous forming process, resin added is 10g/
m2, after the pvdf membrane for upper 25 μ m-thick of after solvent volatile dry, fitting, it is put into by 250 μm of PET/ adhesive/25 μm pvdf membrane order
In baking oven, solidification temperature is 90 DEG C, and hardening time is 2min, is put into 60 DEG C of baking ovens and cures 2 days.
Comparative example 1
PET film identical with embodiment is taken, the known polyurethane adhesive of coating in PET film side, glue-spread is 10g/m2It is compound
With embodiment identical fluorine film, the known polyurethane adhesive of opposite side coating, glue-spread is 10g/m2Compound and embodiment identical
Fluorine film.Using with embodiment identical hot-pressing processing method.
Comparative example 2
This comparative example is related toA kind of solar cell backboard adhesive：The composition of performed polymer component (A) and the phase of embodiment 1
Together, curing component (B) is hexamethylene diisocyanate trimer.It the difference is that only：The performed polymer component and solidification
Component presses 15:1 weight is than after well mixed, and by automating continuous forming process, to be coated uniformly on adhered material material PET thin
Film surface, resin added is 10g/m2, after the pvdf membrane for upper 25 μ m-thick of after solvent volatile dry, fitting, by 250 μm of PET/ gluings
Agent/25 μm pvdf membrane order is put into baking oven, and solidification temperature is 90 DEG C, and hardening time is 2min, is put into 60 DEG C of baking oven curings 2
My god.
The embodiment of table 1 and comparative example performance comparison
It can be seen that, by adding PMMA particles, peeling force is improved compared with comparative example, and ageing-resistant by above-mentioned data
Data are equally obviously improved.At most, initial peeling force and ageing-resistant performance are also most excellent for PMMA particles addition in embodiment 4.
The present invention effectively increases initial peeling force by introducing PMMA particles, and performance is protruded in terms of weatherability, higher than current city
Product level on face, substantially increases the useful life of backboard.
It should be noted that the property indices of above-mentioned adhesive glued membrane are measured by following method
's：
1. peel strength
Method of testing is with reference to standard GB/T/T2790《180 ° of peeling strength test method flexible materials of adhesive are to rigidity
Material》.
Sample making：Adhesive A, B component are pre-mixed and stirred by a certain percentage, is 250 μ in thickness
M pet sheet face uniformly applies the adhesive for being covered with that average grammes per square metre is 10g/m2 dry rubber contents, after after solvent volatile dry, in laminating
The pvdf membrane of 25 μ m-thicks, is put into drying room by 250 μm of PET/ adhesives/pvdf membrane order, and solidification 3min is stood at 120 DEG C, it
After be put into 40 DEG C of baking ovens 3 days, obtain adhesion strength of the sample with 300mm/min speed between pulling force aircraft measurements PVDF and PET,
Record peel strength numerical value.
2nd, constant wet and heat ageing resistant performance
Hydrothermal aging experiment is carried out by GB/T2423.3 test methods.
Experimental condition：85 DEG C, relative humidity 85%, 2000h.Experiment it is forward and backward to sample according to standard GB/T/T2790
《180 ° of peeling strength test method flexible materials of adhesive are to rigid material》Carry out peeling force measure.
3rd, PCT ageing-resistant performances
Experimental condition：121 DEG C, relative humidity 100%, 72h.
Experiment it is forward and backward to specimen page according to standard GB/T/T2790《The flexible material of 180 ° of peeling strength test methods of adhesive
Material is to rigid material》Carry out peeling force measure.
Concrete application approach of the present invention is a lot, and described above is only the preferred embodiment of the present invention.It should be pointed out that more than
Embodiment is merely to illustrate the present invention, and the protection domain being not intended to limit the invention.For the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as this hair
Bright protection domain.
Claims (10)
1. a kind of solar cell backboard Adhesive composition, including performed polymer component and curing component, it is characterised in that institute
State the following composition that performed polymer component includes counting by weight：
The curing component is hexamethylene diisocyanate trimer.
2. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the PMMA particles
Melt flow rate is 8-12g/10min, and glass transition temperature is 60-80 DEG C.
3. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the polyester resin
Number-average molecular weight is that 9000~15000, hydroxyl value is 5~15 and glass transition temperature is at -10~10 DEG C.
4. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the antioxidant is 2,
2 '-methylene-bis--(4- methyl-6-terts butyl) phenol, 2,2 '-methylene-bis--(the 4- ethyl -6- tert-butyl groups) phenol, 1,3,
5- tri- (the 4- tert-butyl group -3- hydroxyl -2,6- dimethyl benzyls) -1,3,5- triazines -2,4,6- (1H, 3H, 5H)-triketone, 3,5-
Di-t-butyl -4- hydroxy-benzoic acids cetyl ester, distearyl pentaerythrityl diphosphite, three (2,4- tert-butyl benzenes
Base) phosphite ester, the one or more in three (1,2,2,6- pentamethyl -4-4 piperidyls) phosphite esters.
5. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the UV Absorption
Agent includes 2- (2 '-hydroxyl -3 '-the tert-butyl group -5 '-aminomethyl phenyl) -5- chlorinated benzotriazoles, 2- (the tertiary bases of fourth of 2- hydroxyls -3,5- two
Phenyl) -5- chlorinated benzotriazoles, 2- (2 '-hydroxyl -3 ', 5 '-di-tert-pentyl-phenyl) BTA or the just pungent oxygen of 2- hydroxyls -4-
At least one of base benzophenone.
6. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the performed polymer component
Weight ratio with curing component is (20-24):1.
7. solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that the performed polymer component
Preparation method comprise the following steps：
PMMA particles are dissolved in toluene in case of heating, solution A is formed；The heating-up temperature is 45~55 DEG C；
Polyester resin ethyl acetate is dissolved, solution B is formed；
Solution A, solution B, antioxidant, UV absorbers are mixed in proportion, you can.
8. a kind of preparation method of solar cell backboard Adhesive composition as claimed in claim 1, it is characterised in that
Comprise the following steps：
By performed polymer component and curing component according to (20-24):1 weight is than mixing, and stirring to be coated with after 25-35min makes
With.
9. a kind of solar cell backboard Adhesive composition as claimed in claim 1 answering in photovoltaic back is prepared
With.
10. solar cell backboard Adhesive composition as claimed in claim 9 is preparing two-sided being combined for fluorine film layer
Application in type photovoltaic back.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109294504A (en) * | 2018-08-16 | 2019-02-01 | 广东圣帕新材料股份有限公司 | A kind of photovoltaic back Adhesive composition and preparation method thereof |
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Application publication date: 20171103 |