CN102361043B - Ethylene vinyl acetate (EVA) for encapsulating solar cell - Google Patents
Ethylene vinyl acetate (EVA) for encapsulating solar cell Download PDFInfo
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- CN102361043B CN102361043B CN 201110361535 CN201110361535A CN102361043B CN 102361043 B CN102361043 B CN 102361043B CN 201110361535 CN201110361535 CN 201110361535 CN 201110361535 A CN201110361535 A CN 201110361535A CN 102361043 B CN102361043 B CN 102361043B
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- eva
- solar cell
- titanium dioxide
- cell packaging
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- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 40
- 239000004408 titanium dioxide Substances 0.000 claims description 18
- 238000004806 packaging method and process Methods 0.000 claims description 13
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- UNIYDALVXFPINL-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propylsilicon Chemical compound CC(=C)C(=O)OCCC[Si] UNIYDALVXFPINL-UHFFFAOYSA-N 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- -1 pentaerythritol ester Chemical class 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 5
- 235000019260 propionic acid Nutrition 0.000 claims description 5
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000004611 light stabiliser Substances 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- GPOGLVDBOFRHDV-UHFFFAOYSA-N (2-nonylphenyl) dihydrogen phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(O)O GPOGLVDBOFRHDV-UHFFFAOYSA-N 0.000 claims description 3
- PYOLJOJPIPCRDP-UHFFFAOYSA-N 1,1,3-trimethylcyclohexane Chemical compound CC1CCCC(C)(C)C1 PYOLJOJPIPCRDP-UHFFFAOYSA-N 0.000 claims description 3
- YEYQUBZGSWAPGE-UHFFFAOYSA-N 1,2-di(nonyl)benzene Chemical compound CCCCCCCCCC1=CC=CC=C1CCCCCCCCC YEYQUBZGSWAPGE-UHFFFAOYSA-N 0.000 claims description 3
- NOSXUFXBUISMPR-UHFFFAOYSA-N 1-tert-butylperoxyhexane Chemical class CCCCCCOOC(C)(C)C NOSXUFXBUISMPR-UHFFFAOYSA-N 0.000 claims description 3
- HEJCZAMFVMNFLC-UHFFFAOYSA-N 10-oxo-10-(2,2,6,6-tetramethylpiperidin-4-yl)oxydecanoic acid Chemical compound CC1(C)CC(OC(=O)CCCCCCCCC(O)=O)CC(C)(C)N1 HEJCZAMFVMNFLC-UHFFFAOYSA-N 0.000 claims description 3
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- 150000005690 diesters Chemical class 0.000 claims description 3
- ZJIPHXXDPROMEF-UHFFFAOYSA-N dihydroxyphosphanyl dihydrogen phosphite Chemical compound OP(O)OP(O)O ZJIPHXXDPROMEF-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 3
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N n-octadecyl alcohol Natural products CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 3
- LIXVMPBOGDCSRM-UHFFFAOYSA-N nonylbenzene Chemical compound CCCCCCCCCC1=CC=CC=C1 LIXVMPBOGDCSRM-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- 150000008301 phosphite esters Chemical class 0.000 claims description 3
- 150000003053 piperidines Chemical class 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- RJHSCCZVRVXSEF-UHFFFAOYSA-N (2-hydroxyphenyl) benzoate Chemical compound OC1=CC=CC=C1OC(=O)C1=CC=CC=C1 RJHSCCZVRVXSEF-UHFFFAOYSA-N 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000002075 main ingredient Substances 0.000 abstract description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 abstract 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 5
- 239000002313 adhesive film Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000011514 reflex Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- GDESWOTWNNGOMW-UHFFFAOYSA-N resorcinol monobenzoate Chemical compound OC1=CC=CC(OC(=O)C=2C=CC=CC=2)=C1 GDESWOTWNNGOMW-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FANGQVKSFHFPBY-UHFFFAOYSA-N 2-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound OC(=O)C(C)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FANGQVKSFHFPBY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses ethylene vinyl acetate (EVA) for encapsulating a solar cell. The EVA is encapsulated between a cell sheet and a back plate in a solar assembly, namely is applied to a lower layer EVA adhesive film in the assembly; a main ingredient of the EVA is ethylene-vinyl acetate, the conventional epoxy resin is subjected to graft copolymerization modification, and modified titanium dioxide powder and other additive ingredients are added, so that solar reflected light at a gap of the cell sheet can be fully utilized by the lower layer EVA adhesive film in the assembly, a path of the reflected light is shorter than that of the original reflected light, the range of the reflected light reflected to the cell sheet is expanded, and the photoelectric conversion efficiency of the cell sheet is improved further. Simultaneously, the modified EVA has high physical performance such as bonding strength, insulation resistance and the like.
Description
Technical field
The present invention relates to a kind of EVA that solar components is used that encapsulates, relate in particular to the EVA that in solar cell package, is used between cell piece and lower paranotum.
Background technology
Current, the lasting use of conventional energy resource has brought a series of economy and the social concerns such as energy scarcity and ecological deterioration, in general, conventional energy resource refers to technical comparative maturity and the energy that has been utilized on a large scale, and new forms of energy typically refer to not yet on a large scale the energy that utilizes, just developing in active research.Therefore, coal, oil, natural gas and big-and-middle-sized water power all are counted as conventional energy resource, and the free of contamination green energy resource that solar energy utilizes just at present on a large scale, countries in the world are all at the active development solar module, and high conversion efficiency, low cost are the main trend of solar module development, also are the targets that technical research person pursues.
As shown in Figure 1, solar components generally by following which floor encapsulate from top to bottom and form: namely glass 1, and upper strata EVA glued membrane 2, cell piece 3, the EVA of lower floor glued membrane 4 and backboard 5, described upper strata EVA glued membrane 2 and the EVA of lower floor glued membrane 4 all are the materials of transparent high transmission rate.Upper strata EVA glued membrane 2 is positioned between the glass of cell piece and upside, i.e. the sensitive side of cell piece, and it is made into high transparent main purpose is the transmitance that increases incident light, is beneficial to the photoelectric conversion efficiency that improves solar battery sheet.And the EVA of lower floor glued membrane 4 is used in the backlight side between cell piece and lower paranotum, mainly plays protection backboard cut-off ultraviolet light and reaches the crosslinked purpose of component internal storeroom.
And the efficient of solar components is under cell piece class efficient fixing situation, it is by promoting glass and the transmitance of EVA and the reflectivity of backboard on the one hand that component efficiency promotes, and is that the contact resistance that reduces welding self-resistance and welding and cell piece is realized on the other hand.
Summary of the invention
The objective of the invention is for further improving the efficient of solar components, a kind of white reflection EVA of used for encapsulation of solar battery is proposed, it is applied in the solar components between cell piece side backlight and lower paranotum, to take full advantage of the solar reflection optical of cell piece gap, catoptrical amount of incident on the sensitive surface on the increase cell piece, thus the cell piece photoelectric conversion efficiency further promoted.
For achieving the above object, the present invention proposes following technical scheme: a kind of solar cell packaging EVA is mixed with by the raw material of following weight portion proportioning:
Wherein, described modified epoxy is olefines epoxy resin, amine epoxy resin, the mixture of organosilicon epoxy resin.
Described modifying titanium dioxide is formed by titanium dioxide and methacryloxypropyl silane mixture, and the proportion of titanium dioxide and methacryloxypropyl silane is 9: 1-7: 3.
The weight of titanium dioxide is counted the rutile-type of 80-95% in the described modifying titanium dioxide, and the diameter of described titanium dioxide granule is 100-300nm.
Described antioxidant is selected from three (2 at least, the 4-di-tert-butyl-phenyl) phosphite ester, distearyl pentaerythrite diphosphorous acid fat, [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, the β-positive octadecanol ester of (4-hydroxyl-3,5 di-tert-butyl-phenyl) propionic acid, tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), and any one or two or more combinations in three (nonyl phenyl) phosphite.
Described crosslinking agent is that following 2 kinds of mixing match form: 2,5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane.
Described light stabilizer is that following one or more mixing match form: two (the 1-octyloxies-2 of hindered amines, 2,6,6-tetramethyl-4-piperidyl) last of the ten Heavenly stems diester, two (2,2,6,6-tetramethyl-4-piperidyl) sebacate, poly-succinic (4 hydroxyls-2,2,6,6-tetramethyl-1 piperidines ethanol fat).
Described UV absorbers is that following one or more mixing match form: UV-531, and 2-[4,6-two (2, the 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol, aerosil, resorcinol monobenzoate.
Described silane coupler is that following one or more mixing match form: γ-glycidyl ether oxygen propyl trimethoxy silicane, vinyltriethoxysilane, vinyltrimethoxy silane.
Compared with prior art, after being packaged in the EVA of lower floor in the solar components and adopting the white reflection EVA that the present invention proposes, it has the following advantages:
The first, take full advantage of the solar reflection optical of cell piece gap, so that the reverberation path is than front shortening, reflexing to reverberation on glass is increased, thereby increased the reverberation that reflexes on the cell piece, and further promoted the cell piece photoelectric conversion efficiency, experiment shows that white reflection EVA of the present invention can make the CTM (Cell to Module, the packaging efficiency of assembly) of assembly promote 0.2-1% and not wait.
The second, by composition among the existing EVA is improved, so that the EVA after the modification has excellent adhesive strength, the physical properties such as anti-insulating properties.
Description of drawings
Fig. 1 is the front view of solar components;
Fig. 2 adopts the vertical view of the solar components of solar cell packaging EVA of the present invention;
Light after the solar components reflection of Fig. 3 incident ray through adopting EVA of the present invention re-uses figure;
Fig. 4 is the light whereabouts figure after the solar components reflection of incident light through adopting traditional E VA.
Embodiment
Below in conjunction with accompanying drawing of the present invention, the technical scheme in the preferred embodiment of the present invention is carried out clear, complete description.
As shown in Figure 1, 2, 3, disclosed solar cell packaging EVA, a kind of novel white reflection EVA that is used for improving solar components efficient, it is used for being encapsulated in the top of paranotum under the solar components cell piece, namely be used on the EVA of the lower floor glued membrane 4 of 5 of cell piece 3 and backboards, described solar components comprises glass 1, upper strata EVA glued membrane 2, cell piece 3, the EVA of lower floor glued membrane 4 and backboard 5 from top to bottom successively, in addition, assembly also comprises terminal box 6, be welded in the busbar 8 of 3 of cell pieces, and the frame 7 that is coated on the assembly periphery.
The Main Ingredients and Appearance of described white reflection EVA is ethene-vinyl acetate fat, it passes through the conventional epoxies grafting, copolymerization and modification, and improved additives is added modifying titanium dioxide powder and other compositions and formed, specifically, white reflection EVA of the present invention is made by following weight portion proportioning raw material:
1) 100 parts ethene-vinyl acetate fat;
2) 0.5-2 part modified epoxy;
3) 5-10 part modifying titanium dioxide powder;
4) 0.5-1.2 part antioxidant;
5) 0.3-1.2 part crosslinking agent;
6) 0.05-0.20 part light stabilizer;
7) 0.1-0.5 part UV absorbers;
8) 0.5-1.5 part silane coupler.
Wherein, described modified epoxy is by olefines epoxy resin, amine epoxy resin, organosilicon epoxy resin mixes, the weight that titanium dioxide powder in the described modifying titanium dioxide powder is used is counted the rutile-type of 80%-95%, cooperate the methacryloxypropyl silane mixture to use, it is 9 that titania powder and methacryloxypropyl silane proportioning are recommended proportion: 1-7: between 3, the titanium dioxide granule diameter is between the 100-300nm, and the modifying titanium dioxide powder of adding of the present invention has 3 advantages:
1, ultraviolet luminous energy is produced Intrinsic Gettering, can prevent that ultraviolet ray from producing decomposition to the backboard of macromolecular material, the macromolecular materials such as protection solar energy backboard;
2, the modifying titanium dioxide powder can well strengthen the reflection of incident ray, thereby has improved the efficient light of returning from reflection of glass surface, has further improved the photoelectric conversion efficiency of solar cell;
3, the methacryloxypropyl silane that adds is a kind of coupling agent, effect is the dispersiveness that strengthens titania powder in EVA high-temperature cross-linking process, can make that to reflex to optical range on glass from EVA more even, further improve the efficient light that reflexes on the cell piece, improve the photoelectric conversion efficiency of solar battery sheet.
Described antioxidant mainly is divided into hindered phenol type antioxidant or phosphite kind antioxidant, described antioxidant is specially following one or more mixing match and forms: three (2, the 4-di-tert-butyl-phenyl) phosphite ester, distearyl pentaerythrite diphosphorous acid fat, [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(4-hydroxyl-3,5 di-tert-butyl-phenyls) the positive octadecanol ester of propionic acid, tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), three (nonyl phenyl) phosphite.
Described crosslinking agent is mainly peroxide, and described crosslinking agent is specially by following two kinds of composition proportion and forms: 2,5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane.
Described light stabilizer is specially following one or more mixing match and forms: two (the 1-octyloxies-2 of hindered amines, 2,6,6-tetramethyl-4-piperidyl) last of the ten Heavenly stems diester, two (2,2,6,6-tetramethyl-4-piperidyl) sebacate, poly-succinic (4 hydroxyls-2,2,6,6-tetramethyl-1 piperidines ethanol fat).
Described UV absorbers is specially following one or more mixing match and forms: UV-531, and 2-[4,6-two (2, the 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol, aerosil, resorcinol monobenzoate.
Described silane coupler is tackifier, is specially following one or more mixing match and forms: γ-glycidyl ether oxygen propyl trimethoxy silicane, vinyltriethoxysilane, vinyltrimethoxy silane.
Disclosed white reflection EVA, it has excellent adhesive strength to macromolecular material and inorganic material surface, and anti-insulation property are good, the break-in shrinkage is little, reflective article dimensional stability and pliability are good, and be heat-resisting, the physical and chemical performance that anti chemical properties is good.Adopt respectively as shown in Figure 3 and Figure 4 the light whereabouts figure of white reflection EVA of the present invention and traditional E VA for the EVA of assembly lower floor glued membrane 4, as can be seen from the figure, adopt the solar reflection optical of incident light in the cell piece gap of white reflection EVA of the present invention to reflex on the cell piece, again via the bottom reflection of upper strata glass 1 sensitive surface to cell piece, so that the sensitive surface of cell piece can receive more illumination, thereby improved the cell piece photoelectric conversion efficiency.
Technology contents of the present invention and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; therefore; protection range of the present invention should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present invention and modifications, and contained by the present patent application claim.
Claims (8)
1. a solar cell packaging EVA is characterized in that, described EVA is mixed with by the raw material of following weight portion proportioning:
Wherein, described modified epoxy is olefines epoxy resin, amine epoxy resin, the mixture of organosilicon epoxy resin, described modifying titanium dioxide is formed by titanium dioxide and methacryloxypropyl silane mixture, and the weight ratio of titanium dioxide and methacryloxypropyl silane is 9: 1-7: 3.
2. solar cell packaging EVA according to claim 1, it is characterized in that: the diameter of described titanium dioxide granule is 100-300nm, and weight is counted 80-95% in the described titanium dioxide is rutile-type.
3. solar cell packaging EVA according to claim 1, it is characterized in that: described antioxidant is selected from three (2 at least, the 4-di-tert-butyl-phenyl) phosphite ester, distearyl pentaerythrite diphosphorous acid fat, [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(4-hydroxyl-3,5 di-tert-butyl-phenyls) the positive octadecanol ester of propionic acid, tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), and any one or two or more combinations in three (nonyl phenyl) phosphite.
4. solar cell packaging EVA according to claim 1, it is characterized in that: described crosslinking agent is that following two kinds of mixing match form: 2,5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-, 1,1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane.
5. solar cell packaging EVA according to claim 1, it is characterized in that: described light stabilizer is that following one or more mixing match form: two (the 1-octyloxies-2,2 of hindered amines, 6,6-tetramethyl-4-piperidyl) last of the ten Heavenly stems diester, two (2,2,6,6-tetramethyl-4-piperidyl) sebacate, poly-succinic (4 hydroxyls-2,2,6,6-tetramethyl-1 piperidines ethanol fat).
6. solar cell packaging EVA according to claim 1, it is characterized in that: described UV absorbers is that following one or more mixing match form: UV-531,2-[4,6-two (2, the 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yl]-5-(octyloxy) phenol, aerosil, the benzenediol mono benzoate.
7. solar cell packaging EVA according to claim 1, it is characterized in that: described silane coupler is that following one or more mixing match form: γ-glycidyl ether oxygen propyl trimethoxy silicane, vinyltriethoxysilane, vinyltrimethoxy silane.
8. according to claim 1 to the described solar cell packaging EVA of 7 any one, it is characterized in that: described EVA is positioned at the backlight side of described solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110361535 CN102361043B (en) | 2011-11-15 | 2011-11-15 | Ethylene vinyl acetate (EVA) for encapsulating solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110361535 CN102361043B (en) | 2011-11-15 | 2011-11-15 | Ethylene vinyl acetate (EVA) for encapsulating solar cell |
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| Publication Number | Publication Date |
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| CN102361043A CN102361043A (en) | 2012-02-22 |
| CN102361043B true CN102361043B (en) | 2013-04-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101458668B1 (en) * | 2012-02-24 | 2014-11-06 | (주)엘지하우시스 | Eva sheet including fine particle for solar cell module and manufacturing method of therein |
| CN102623533B (en) * | 2012-03-16 | 2014-07-23 | 友达光电股份有限公司 | Solar module capable of absorbing ultraviolet waveband and production method of solar module |
| CN102637769A (en) * | 2012-03-16 | 2012-08-15 | 浙江正泰太阳能科技有限公司 | Silicon-based thin-film solar cell packaging method |
| CN103367493A (en) * | 2012-04-01 | 2013-10-23 | 陈志正 | Photovoltaic assembly |
| CN102709361A (en) * | 2012-05-08 | 2012-10-03 | 常州天合光能有限公司 | Efficient solar cell assembly and lamination technique thereof |
| CN102800730A (en) * | 2012-07-09 | 2012-11-28 | 友达光电股份有限公司 | Photovoltaic device |
| JP2014090160A (en) * | 2012-10-04 | 2014-05-15 | Toppan Printing Co Ltd | Solar cell module |
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