CN106281069B - A kind of anti-snail line EVA packaging adhesive film of photovoltaic - Google Patents
A kind of anti-snail line EVA packaging adhesive film of photovoltaic Download PDFInfo
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- CN106281069B CN106281069B CN201510300147.7A CN201510300147A CN106281069B CN 106281069 B CN106281069 B CN 106281069B CN 201510300147 A CN201510300147 A CN 201510300147A CN 106281069 B CN106281069 B CN 106281069B
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- adhesive film
- packaging adhesive
- eva
- eva packaging
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- 239000002313 adhesive film Substances 0.000 title claims abstract description 82
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 79
- 238000005260 corrosion Methods 0.000 claims abstract description 26
- 230000007797 corrosion Effects 0.000 claims abstract description 26
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 20
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims description 22
- -1 sebacic acid ester Chemical class 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 11
- 230000001458 anti-acid effect Effects 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 150000002148 esters Chemical class 0.000 claims description 10
- 239000004611 light stabiliser Substances 0.000 claims description 10
- 239000012964 benzotriazole Substances 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 8
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical group FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 claims description 7
- 150000003053 piperidines Chemical class 0.000 claims description 7
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 7
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 6
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- ZREORSWVGSDDPP-UHFFFAOYSA-N (4-nonylphenyl) dihydrogen phosphite Chemical class CCCCCCCCCC1=CC=C(OP(O)O)C=C1 ZREORSWVGSDDPP-UHFFFAOYSA-N 0.000 claims description 5
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 5
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 5
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 5
- 235000013539 calcium stearate Nutrition 0.000 claims description 5
- 239000008116 calcium stearate Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 4
- 150000003330 sebacic acids Chemical class 0.000 claims description 4
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims description 4
- IGFHQQFPSIBGKE-UHFFFAOYSA-N 4-nonylphenol Chemical class CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 3
- 150000003852 triazoles Chemical class 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N n-Decanedioic acid Natural products OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- JEPOUAJLGNNYDU-UHFFFAOYSA-N N1C=CC=C1.CC1=CC=CC=2NN=NC21 Chemical class N1C=CC=C1.CC1=CC=CC=2NN=NC21 JEPOUAJLGNNYDU-UHFFFAOYSA-N 0.000 claims 1
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 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
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 abstract description 13
- 239000004332 silver Substances 0.000 abstract description 13
- 150000002978 peroxides Chemical class 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004132 cross linking Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 70
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 70
- 241000237858 Gastropoda Species 0.000 description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 12
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 8
- 235000006708 antioxidants Nutrition 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 239000012785 packaging film Substances 0.000 description 4
- 229920006280 packaging film Polymers 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910001923 silver oxide Inorganic materials 0.000 description 4
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 3
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 150000002432 hydroperoxides Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- ODKXGEBKLRHKGQ-UHFFFAOYSA-N C(C)(C)(C)OO.C(O)(O)=O Chemical compound C(C)(C)(C)OO.C(O)(O)=O ODKXGEBKLRHKGQ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- LBRFMIRXEYIMGH-UHFFFAOYSA-N [Ag].N=C=O Chemical compound [Ag].N=C=O LBRFMIRXEYIMGH-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding 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)
Abstract
The present invention provides a kind of anti-snail line EVA packaging adhesive film of photovoltaic, the EVA packaging adhesive film uses 0.1~2% TBEC for crosslinking agent, and 0.1~2% TMPTMA is assistant crosslinking agent, and is added with 0.05~0.25% corrosion inhibiter.By the present invention in that being crosslinking agent with TBEC, TMPTMA is assistant crosslinking agent, the generation of micro isocyanic acid HOCN was both prevented in this way, make the reduction of EVA crosslinking curing temperature simultaneously, after normal process lamination, peroxide residual is down to 0.025% hereinafter, the residual of peroxide significantly reduces the corrosion of grid line silver from original 0.15% in photovoltaic module.Corrosion inhibiter is added in formula simultaneously, corrosion inhibiter can capture various substances, to further reduced the corrosion of grid line silver.The cooperation between residual quantity and corrosion inhibiter that the present invention passes through control peroxide, finally realizes the anti-snail line effect of photovoltaic module.
Description
Technical field
The invention belongs to technical field of photovoltaic modules, and in particular to a kind of anti-snail line EVA packaging adhesive film of photovoltaic.
Background technique
Environment and energy problem are the important topic that we study always.One kind as response environment and energy problem becomes
Gesture, photovoltaic industry development is rapid in recent years.While industry develops rapidly, photovoltaic products are outdoors in use process
Various failures annoying photovoltaic manufacturer always.There is a kind of appearance failure of photovoltaic module to annoying each photovoltaic manufacturer always,
New Parent was used outdoors within some months to several years, and local discolouration occurs for the thin grid line of cell piece, discoloration across each cell piece, from
Photovoltaic module front sees that, such as the trace that snail gets over, industry is commonly referred to as snail line (snail trail).Snail line usually exists
Installation occurs as soon as after some months, once there is snail line, just very slowly, snail line is only grid line and the boundary of EVA to later progress
Change colour at face, does not influence the properties of photovoltaic module, but appearance is ugly, easily cause the generation of customer complaint.It was arrived in 2009
In short time in 2010, photovoltaic module snail line phenomenon generates rapidly in the industry, at least more than 30 families of Photon magazine ran
The product of photovoltaic enterprise generated snail line, throughout regions such as the U.S., Europe and Asia.
EVA as photovoltaic module mainstream encapsulating material, develop and update it is relatively simple rapidly, impart it in recent years
Its some function, such as anti-PID performance, high reflectivity can wait.But snail line problem is faced, although each enterprise has carried out extensively
Technical research, but be all extremely difficult to 100% anti-snail line of component.After 2010, snail line probability of happening is reduced, but
Also a certain proportion of component has snail line phenomenon.Although snail line has certain correlation with silver paste, silver paste is related to electricity
The change of the power in pond and photovoltaic module, formula is more difficult, also never has anti-snail line or anti-oxidant silver paste on the market.
Think in the industry, the mechanism of snail line or grid line discoloration generation is active nano silver or silver ion in EVA and grid line
Reaction.EVA crosslinking is generally all caused by peroxide, and due to the limitation of laminating technology, component inevitably has peroxide
Residual.When EVA adhesive film acetic acid content is cumulative too high, remaining peroxide cross-linking agent in acetic acid acidolysis EVA forms hydrogen mistake
Oxide.Hydroperoxides activity is higher, and the silver contacted is etched into the silver oxide of black (as shown in Fig. 2, from silver grating line
The silver that the frit middle reaches on surface separate out, the silver oxide of black is oxidized to by hydroperoxides).
Separately have similar studies have shown that research shows that a small amount of silver ion of remaining in grid line, due to the crack of cell piece, the position
Temperature is higher, and moisture content is more, and the silver ion in grid line is from grid line fracture location separate out, and by the small molecule in EVA
Substance corrodes the silver oxide at black.There are also reports to show, the assistant crosslinking agent TAIC in EVA can also decomposite isocyanic acid
HOCN, HOCN also have certain corrosivity, with nanometer silver reaction in grid line, generate isocyanic acid silver AgOCN (such as Fig. 3 of black
It is shown).
All research mechanisms all show that when battery crack, through the through battery front side of cell piece, EVA water occurs for steam
Solution generates corrosive substance.Corrosive substance accumulation, easily corrodes battery grid line, results in the generation of snail line.
Prior art (what sign etc., the research of EVA film adhesive for solar cell package performance, plastics science and technology, 2012, the
Volume 40, the 9th phase, 55~59) it discloses using peroxide as crosslinking agent, TMPTMA obtains EVA as assistant crosslinking agent, crosslinking
Glue film.But the prior art does not refer to snail line phenomenon, does not evaluate whether it can improve snail line phenomenon yet.CN
Although 104163027A is disclosed using TBEC crosslinked EVA, still, belong to wallpaper field, be not directed to photovoltaic module, because
This, does not refer to snail line phenomenon yet.
Summary of the invention
The problem of based on prior art, one of the objects of the present invention is to provide a kind of anti-snails of photovoltaic
Line packaging adhesive film fills up the blank of anti-snail line packaging adhesive film to realize the anti-snail line effect of photovoltaic module.
To achieve the goals above, present invention employs following technical solutions:
A kind of anti-snail line EVA packaging adhesive film of photovoltaic, the EVA packaging adhesive film use 0.1~2% TBEC for
Crosslinking agent, 0.1~2% TMPTMA are assistant crosslinking agent, and are added with 0.05~0.25% corrosion inhibiter, and the corrosion inhibiter is benzene
Parallel triazole (BTA) or/and methylbenzotriazole (TTA).
In the present invention, the EVA, that is, ethylene-vinyl acetate copolymer, TBEC, that is, tert-butyl hydroperoxide carbonic acid -2- ethyl
Own ester, TMPTMA, that is, trimethylol-propane trimethacrylate.
If being free of TMPTMA in packaging adhesive film, EVA crosslink density is not high；Without corrosion inhibiter, in long-term ageing, cell piece
The perishable discoloration of silver grating line.
The content of the TBEC be 0.1~2%, such as 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%,
0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8% or 1.9%.
The content of the TMPTMA be 0.1~2%, such as 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%,
0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8% or 1.9%.
The content of the corrosion inhibiter be 0.05~0.25%, for example, 0.06%, 0.07%, 0.08%, 0.09%,
0.10%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.20%,
0.21%, 0.22%, 0.23% or 0.24%.
EVA packaging adhesive film of the invention uses TBEC for crosslinking agent, and TMPTMA is crosslinking agent, and is added with corrosion inhibiter, i.e.,
It can be made into the anti-snail line EVA packaging adhesive film of high-transparency, the encapsulation for photovoltaic module battery front side.
Preferably, the EVA packaging adhesive film uses 0.6~1.2% TBEC for crosslinking agent, 0.3~0.6% TMPTMA
For assistant crosslinking agent, and be added with 0.15~0.22% corrosion inhibiter.
Preferably, on the basis of high-transparency is formulated, add 0.05~0.5% in EVA packaging adhesive film (such as 0.1%,
0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45% or UV absorbers 0.5%), then it can be made into
The anti-snail line EVA packaging adhesive film of high resistance type, can be used for the encapsulation of photovoltaic module cell backside.
Preferably, the UV absorbers are 2-hydroxy-4-n-octoxybenzophenone.
Preferably, the raw material of the EVA packaging adhesive film includes 95~97% EVA.The content of the EVA is, for example,
95%, 95.2%, 95.4%, 95.6%, 95.8%, 96%, 96.2%, 96.4%, 96.6%, 96.8% or 97%.
Preferably, VA content is 26~33% in the EVA.
Preferably, the raw material of the EVA package material glue film includes 0.05~0.4% UV light stabilizing agent.It is described ultraviolet
The content of light stabilizer is, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%.
Preferably, the UV light stabilizing agent is two (- 4 piperidines of 2,2,6,6 tetramethyl) sebacic acid esters.
Preferably, the raw material of the EVA packaging adhesive film includes 0.05~0.4% auxiliary antioxidant.The auxiliary antioxygen
The content of agent is, for example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%.
Preferably, the auxiliary antioxidant is three (4- nonyl phenol) phosphite esters and (2, the 4- di-tert-butyls of phosphorous acid three
Base) ester mixture.
Preferably, the raw material of the EVA packaging adhesive film includes 0.05~0.4% tackifier.The content of the tackifier
For example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%.
Preferably, the tackifier are γ-methacryloxypropyl trimethoxy silane.
Preferably, the raw material of the EVA packaging adhesive film includes 0.05~0.4% fire retardant.The content of the fire retardant
For example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%.
Preferably, the fire retardant is trioctyl phosphate.
Preferably, the raw material of the EVA packaging adhesive film includes 0.05~0.4% antiacid.The content of the antiacid
For example, 0.1%, 0.15%, 0.2%, 0.25%, 0.3% or 0.35%.
Preferably, the antiacid is calcium stearate.
Preferably, the EVA packaging adhesive film is the anti-snail line EVA packaging adhesive film of high-transparency, the matter accounted for by each component
Amount percentage is mainly prepared by the following raw material:
Preferably, the EVA packaging adhesive film is the anti-snail line EVA packaging adhesive film of high-transparency, the matter accounted for by each component
Amount percentage is mainly prepared by the following raw material:
Wherein, VA content is 26~33% in the EVA, and UV light stabilizing agent is two (- 4 piperidines of 2,2,6,6 tetramethyl)
Sebacic acid ester, auxiliary antioxidant are the mixing of three (4- nonyl phenol) phosphite esters and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester
Object, tackifier are γ-methacryloxypropyl trimethoxy silane, and fire retardant is trioctyl phosphate, and antiacid is tristearin
Sour calcium, corrosion inhibiter are benzotriazole (BTA) or/and methylbenzotriazole (TTA).
Preferably, the EVA packaging adhesive film is the anti-snail line EVA packaging adhesive film of high resistance type, the matter accounted for by each component
Amount percentage is mainly prepared by the following raw material:
Preferably, the EVA packaging adhesive film is the anti-snail line EVA packaging adhesive film of high resistance type, the matter accounted for by each component
Amount percentage is mainly prepared by the following raw material:
Wherein, VA content is 26~33% in the EVA, and UV absorbers are 2- hydroxyl -4- n-octyloxy hexichol first
Ketone, UV light stabilizing agent are two (- 4 piperidines of 2,2,6,6 tetramethyl) sebacic acid esters, and auxiliary antioxidant is three (4- nonyl phenol) phosphorous
The mixture of acid esters and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, tackifier are γ-methacryloxypropyl front three
Oxysilane, fire retardant are trioctyl phosphate, and antiacid is calcium stearate, and corrosion inhibiter is benzotriazole (BTA) or/and methyl
Benzotriazole (TTA).
In the present invention, the content of each component is with the sum of material quality of EVA packaging adhesive film for calculating benchmark, each component
Content be that the quality of each component accounts for the mass percent of the sum of material quality of EVA packaging adhesive film.
In photovoltaic module comprising two layers of packaging adhesive film, one layer is located above cell piece (high-transparency packaging adhesive film), and one
Layer is located at below cell piece (high resistance type packaging adhesive film).
Such as high saturating/anti-snail line EVA packaging adhesive film of high resistance type of anti-snail line EVA packaging adhesive film of the invention and conventional photovoltaic
The laminating technology of component is identical, as shown in Figure 1, it is using the anti-snail line EVA packaging adhesive film envelope of high saturating/high resistance type of the invention
The photovoltaic module structure figure of dress comprising the anti-snail line EVA packaging film of backboard, the high resistance type being sequentially overlapped, cell piece, height are thoroughly
The anti-snail line EVA packaging film of type and pattern glass, wherein 140~145 DEG C of laminating technology temperature, total lamination times are 16
~20min.
Compared with the prior art, the invention has the following beneficial effects:
The present invention is still crosslinking agent using TBEC by improving EVA cross-linking system, but complete using TMPTMA assistant crosslinking agent
Replace TAIC (Triallyl isocyanurate) and TAC (triallyl cyanurate), both prevents micro isocyanic acid in this way
The generation of HOCN, at the same make EVA crosslinking curing temperature reduction, normal process lamination after, in photovoltaic module peroxide residual from
0.15% originally is down to 0.025% hereinafter, the residual of peroxide significantly reduces the corrosion of grid line silver.Simultaneously in formula
Corrosion inhibiter is added, corrosion inhibiter can capture various substances, to further reduced the corrosion of grid line silver.The present invention passes through control
Cooperation between the residual quantity and corrosion inhibiter of peroxide finally realizes the anti-snail line effect of photovoltaic module.Specifically such as
Under:
(1) stronger weatherability, is applied on conventional photovoltaic assemblies, can meet the requirement of quality guarantee 25 years；(2) light transmittance
90% or more；(3) volume resistivity is higher than 1014Ω.cm；(4) shrinking percentage control is below 2.5%；(5) tensile strength exists
16MPa or more, elongation at break is 2 × 102More than；(6) breakdown voltage is in 16KV or more；(7) the wet ohmic leakage of photovoltaic module is high
In 150M Ω (1000V system voltage).
Moreover, the acetic acid burst size of anti-snail line EVA packaging adhesive film of the invention also further decreases after hydrothermal aging.
It is respectively the acetic acid content after EVA adhesive film and anti-snail line EVA packaging adhesive film hydrothermal aging 1000h of the invention such as following table, it can
To find out, after aging, the acetic acid burst size of anti-snail line EVA packaging adhesive film of the invention is significantly reduced.
In addition, anti-snail line EVA packaging adhesive film of the invention and other materials such as backboard, glass, welding, cell piece, helping
The compatibility of solder flux is good, moreover, general components laminating technology can be used to be laminated, meets the requirement of production technology.
Detailed description of the invention
Fig. 1 is the photovoltaic module structure figure encapsulated using anti-snail line EVA packaging adhesive film of the invention, wherein 1- embossing
The anti-snail line EVA packaging film of glass, 2- high-transparency, 3- cell piece, the anti-snail line EVA packaging film of 4- high resistance type, 5- photovoltaic
Backboard；
Fig. 2 is the procedure chart for the silver oxide that acetic acid acidolysis results in black；
Fig. 3 is that EVA assistant crosslinking agent decomposes the procedure chart for causing silver to corrode；Wherein, 6 be glass, and 7 be sliver cell piece, and 5 are
Photovoltaic back.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.
In order to verify the properties of the anti-snail line EVA packaging adhesive film of the present invention, using 1-6, totally 6 groups of data are matched below
The 6 groups of anti-snail line EVA packaging adhesive films obtained are tested respectively, the specific ingredient and proportion of every group of anti-snail line EVA adhesive film
It is as shown in the following chart:
When obtaining high-transparency packaging adhesive film, then do not need that 0.4% UV absorbers are added, at this point, fire retardant
Additional amount is 0.9%.
Wherein, VA content is 28% in the EVA, and UV absorbers are 2-hydroxy-4-n-octoxybenzophenone, purple
Outer light stabilizer is two (- 4 piperidines of 2,2,6,6 tetramethyl) sebacic acid esters, and auxiliary antioxidant is three (4- nonyl phenol) phosphite esters
With the mixture of phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, tackifier are γ-methacryloxypropyl trimethoxy
Silane, fire retardant are trioctyl phosphate, and antiacid is calcium stearate, and corrosion inhibiter is benzotriazole (BTA) or/and methylbenzene a pair of horses going side by side
Triazole (TTA).
According to the related data of above-mentioned 6 groups anti-snail line EVA packaging adhesive films, this 4 groups anti-snail line EVA are obtained through overtesting
The following parameter of glue film:
By the conventional single glass photovoltaic module of 1~6 group of EVA packaging adhesive film encapsulation, it is as follows to measure photovoltaic module properties:
Anti- snail line performance test artificially causes battery crack in advance first, then under wet heat condition (85 DEG C, 85%
RH), 8A reverse current is led to component, continues 500h.By photovoltaic module exposure 48h outdoors, the appearance of component battery is then seen,
It is specific as follows whether there is or not snail line:
By above-mentioned parameter it is found that the properties of anti-snail line EVA packaging adhesive film with cross-linking system and corrosion inhibiter content
Variation and change, wherein the 4th group of EVA various performance parameters more balance.
The Applicant declares that the present invention is explained by the above embodiments method detailed of the invention, but the present invention not office
Be limited to above-mentioned method detailed, that is, do not mean that the invention must rely on the above detailed methods to implement.Technical field
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., all of which fall within the scope of protection and disclosure of the present invention.
Claims (20)
1. a kind of anti-snail line EVA packaging adhesive film of photovoltaic, the EVA packaging adhesive film uses 0.1~2% TBEC to hand over
Join agent, 0.1~2% TMPTMA is assistant crosslinking agent, and is added with 0.05~0.25% corrosion inhibiter, and the corrosion inhibiter is benzene a pair of horses going side by side
Triazole or/and methylbenzotriazole.
2. packaging adhesive film as described in claim 1, which is characterized in that the EVA packaging adhesive film is using 0.6~1.2%
TBEC is crosslinking agent, and 0.3~0.6% TMPTMA is assistant crosslinking agent, and is added with 0.15~0.22% corrosion inhibiter.
3. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes
0.05~0.5% UV absorbers.
4. EVA packaging adhesive film as claimed in claim 3, which is characterized in that the UV absorbers are that 2- hydroxyl -4- is just pungent
Oxygroup benzophenone.
5. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes 95
~97% EVA.
6. EVA packaging adhesive film as claimed in claim 5, which is characterized in that VA content is 26~33% in the EVA.
7. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA package material glue film includes
0.05~0.4% UV light stabilizing agent.
8. EVA packaging adhesive film as claimed in claim 7, which is characterized in that the UV light stabilizing agent is two (2,2,6,6 four
- 4 piperidines of methyl) sebacic acid ester.
9. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes
0.05~0.4% auxiliary antioxidant.
10. EVA packaging adhesive film as claimed in claim 9, which is characterized in that the auxiliary antioxidant is that three (4- nonyl phenols) are sub-
The mixture of phosphate and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
11. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes
0.05~0.4% tackifier.
12. EVA packaging adhesive film as claimed in claim 11, which is characterized in that the tackifier are γ-methacryloxy
Propyl trimethoxy silicane.
13. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes
0.05~0.4% fire retardant.
14. EVA packaging adhesive film as claimed in claim 13, which is characterized in that the fire retardant is trioctyl phosphate.
15. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the raw material of the EVA packaging adhesive film includes
0.05~0.4% antiacid.
16. EVA packaging adhesive film as claimed in claim 15, which is characterized in that the antiacid is calcium stearate.
17. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the EVA packaging adhesive film, by each component
The mass percent accounted for is mainly prepared by the following raw material:
18. EVA packaging adhesive film as claimed in claim 17, which is characterized in that the EVA packaging adhesive film is accounted for by each component
Mass percent be mainly prepared by the following raw material:
Wherein, VA content is 26~33% in the EVA, and UV light stabilizing agent is two (- 4 piperidines of 2,2,6,6 tetramethyl) certain herbaceous plants with big flowers two
Acid esters, auxiliary antioxidant are the mixture of three (4- nonyl phenol) phosphite esters and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester,
Tackifier are γ-methacryloxypropyl trimethoxy silane, and the fire retardant is trioctyl phosphate, and antiacid is tristearin
Sour calcium, corrosion inhibiter are benzotriazole or/and methylbenzotriazole.
19. EVA packaging adhesive film as claimed in claim 1 or 2, which is characterized in that the EVA packaging adhesive film, by each component
The mass percent accounted for is mainly prepared by the following raw material:
20. EVA packaging adhesive film as claimed in claim 19, which is characterized in that the EVA packaging adhesive film is accounted for by each component
Mass percent be mainly prepared by the following raw material:
Wherein, VA content is 26~33% in the EVA, and UV absorbers are 2-hydroxy-4-n-octoxybenzophenone, purple
Outer light stabilizer is two (- 4 piperidines of 2,2,6,6 tetramethyl) sebacic acid esters, and auxiliary antioxidant is three (4- nonyl phenol) phosphite esters
With the mixture of phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, tackifier are γ-methacryloxypropyl trimethoxy
Silane, fire retardant are trioctyl phosphate, and antiacid is calcium stearate, and corrosion inhibiter is benzotriazole or/and methyl benzotriazole
Azoles.
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| CN102559080A (en) * | 2012-02-16 | 2012-07-11 | 太阳能光伏北京市工程研究中心有限公司 | Ethylene-vinylacetate adhesive film |
| CN103881596A (en) * | 2014-03-28 | 2014-06-25 | 阿特斯(中国)投资有限公司 | Black infrared reflection type photovoltaic EVA (Ethylene Vinyl Acetate) adhesive film |
| CN103923374A (en) * | 2014-03-28 | 2014-07-16 | 江苏斯威克新材料有限公司 | EVA (Ethylene Vinyl Acetate) glue film capable of reducing PID (Potential-Induced Degradation) phenomena of photovoltaic module, as well as preparation technology thereof |
| CN204230269U (en) * | 2014-11-28 | 2015-03-25 | 浙江昱辉阳光能源江苏有限公司 | A kind of anti-snail line photovoltaic module |
| CN104479573A (en) * | 2014-12-12 | 2015-04-01 | 常州六合新能源有限公司 | Packaging material polyolefin adhesive film for photovoltaic modules and preparation process thereof |
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2015
- 2015-06-03 CN CN201510300147.7A patent/CN106281069B/en active Active
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|---|---|---|---|---|
| CN102559080A (en) * | 2012-02-16 | 2012-07-11 | 太阳能光伏北京市工程研究中心有限公司 | Ethylene-vinylacetate adhesive film |
| CN103881596A (en) * | 2014-03-28 | 2014-06-25 | 阿特斯(中国)投资有限公司 | Black infrared reflection type photovoltaic EVA (Ethylene Vinyl Acetate) adhesive film |
| CN103923374A (en) * | 2014-03-28 | 2014-07-16 | 江苏斯威克新材料有限公司 | EVA (Ethylene Vinyl Acetate) glue film capable of reducing PID (Potential-Induced Degradation) phenomena of photovoltaic module, as well as preparation technology thereof |
| CN204230269U (en) * | 2014-11-28 | 2015-03-25 | 浙江昱辉阳光能源江苏有限公司 | A kind of anti-snail line photovoltaic module |
| CN104479573A (en) * | 2014-12-12 | 2015-04-01 | 常州六合新能源有限公司 | Packaging material polyolefin adhesive film for photovoltaic modules and preparation process thereof |
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Address after: 215129 Suzhou high tech Zone, Jiangsu Province, Lu Shan Road, No. 199, No. Applicant after: Artes sunshine Power Group Co. Ltd. Applicant after: CHANGSHU TEGU NEW MATERIAL TECHNOLOGY CO., LTD. Address before: 215011 Suzhou high tech Industrial Development Zone, Jiangsu, Lu Shan Road, No. 199 Applicant before: Canadian (China) Investment Co., Ltd. Applicant before: CHANGSHU TEGU NEW MATERIAL TECHNOLOGY CO., LTD. |
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Address after: 215129 199 deer Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: CHANGSHU TEGU NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 215129 199 deer Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: CHANGSHU TEGU NEW MATERIAL TECHNOLOGY Co.,Ltd. |