CN102391568A - Ethylene-vinyl acetate copolymer packaging thin film - Google Patents
Ethylene-vinyl acetate copolymer packaging thin film Download PDFInfo
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- CN102391568A CN102391568A CN2011102921479A CN201110292147A CN102391568A CN 102391568 A CN102391568 A CN 102391568A CN 2011102921479 A CN2011102921479 A CN 2011102921479A CN 201110292147 A CN201110292147 A CN 201110292147A CN 102391568 A CN102391568 A CN 102391568A
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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
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses an ethylene-vinyl acetate copolymer packaging thin film, which is used for packaging solar cell components. The thin film is prepared from the following raw materials in part by weight: 100 parts of an ethylene-vinyl acetate copolymer, 0.1 to 2.0 parts of crosslinking agent, 0.1 to 10.0 parts of aid crosslinking agent and a proper amount of aid. The ethylene-vinyl acetate copolymer contains 25 to 33 percent of vinylacetate, and the ratio of the amount of the aid crosslinking agent and the crosslinking agent is 1:10 to 10:1. In the invention, the introduction of the aid improves the network structure of crosslinked resin, improves crosslinking efficiency, greatly reduces the dosage and residue of the crosslinking agent greatly and avoids aging phenomenon caused by residual crosslinking agent, and the prepared thin film has higher dampness and heat resistance, high ultraviolet resistance, high thermal-oxidative aging resistance and the like and has long service life.
Description
Technical field
The present invention relates to sealing membrane, specifically is a kind of ethylene-vinyl acetate copolymer packaging film as the solar module encapsulation.
Background technology
Exhausted day by day along with traditional fossil energy is that the clean reproducible energy of representative has been gone under the spot light lamp with sun power.At present; The utilization of sun power also is not very universal; What limit the sun power large-scale promotion application mainly is the cost problem, though reach more than 30 years work-ing life as the silicon wafer of solar cell itself, protects silicon wafer not receive extraneous erosive sealing agent working life but to want much shorter.In outdoor abominable weather environment, can be the very fast aging yellowing of sealing agent, even the be full of cracks of coming unstuck break solar module or receive weather and corrode, thereby cause the photoelectric transformation efficiency of entire cell assembly to descend or short circuit damage and losing efficacy.Therefore, we can say that the quality of solar cell and life-span are to be determined by the sealing agent that shields,, must improve the ageing resistance of solar cell sealing agent in order to prolong the life-span of solar module.
Existing most of solar module uses the ethylene-vinyl acetate copolymer film as sealing agent; Simple ethylene-vinyl acetate copolymer film has poor heat resistance, is prone to extension, low elasticity, creep resistance are poor, be prone to that producing expands with heat and contract with cold sends a telegraph defectives such as the pond is cracked, and this just need carry out modification to it.Film formulation is accomplished by U.S. Propulsion and Springbom development in laboratory the earliest; It is to be matrix with the ethylene-vinyl acetate copolymer resin; It is formulated to add anti-aging auxiliary agents such as linking agent and oxidation inhibitor, ultraviolet absorbers, photostabilizer; The ethylene-vinyl acetate copolymer film of selling on the present stage market development of deriving on this basis mostly, however this film is still apart from also there being suitable gap in work-ing life of three more than ten years of silicon wafer.Along with the continuous development of solar energy industry, how to improve the formula system of solar module sealing film, further improve film work-ing life, become the matter of utmost importance that film producer is faced.
Through applicant's discovery that studies for a long period of time, the reason of ethylene-vinyl acetate copolymer film flavescence mainly comes from two aspects: be degraded, the oxidation of ethylene-vinyl acetate copolymer self on the one hand; Be to cause on the other hand owing to remaining linking agent and the reaction between the anti-aging agent.Existing disclosed most of pertinent literature mainly concentrates in the research of ethylene-vinyl acetate copolymer self degraded, oxidation; Through selecting suitable anti-aging agent to come the aging of ethene suppressing-vinyl acetate copolymer, and ignored the reaction between remaining linking agent and the anti-aging agent.That the Chinese patent document discloses is a kind of " sealing films for solar cell and use its solar cell " (publication number: CN101617410; Open day: 2009.12.30); It adopts overactivity ability organo-peroxide as linking agent, and the residual cross-linker reactive behavior is lower, has improved the ageing-resistant performance of film; But because used linking agent activation energy is higher; Make film in the process of using, have decomposition temperature height, the slow defective of decomposition rate, this has directly increased the energy expenditure in the solar module production process, has also reduced production efficiency simultaneously.
Summary of the invention
The objective of the invention is to:, provide that a kind of ageing-resistant performance is good, the ethylene-vinyl acetate copolymer packaging film of long service life to the deficiency of above-mentioned prior art.
Mentality of designing of the present invention is: in ethylene-vinyl acetate copolymer, add suitable additional crosslinker, linking agent by a certain percentage; Their mutual compatibilities, the collaborative composition are caused cross-linking system; Thereby it is residual greatly to have reduced the linking agent in the film; Improve the ageing-resistant performance of film, prolonged the work-ing life of film.
The technical scheme that the present invention adopts is: a kind of ethylene-vinyl acetate copolymer packaging film, as the solar module encapsulation, the constitutive material of said film comprises ethylene-vinyl acetate copolymer, linking agent, additional crosslinker and auxiliary agent.
The proportioning raw materials of said film is by following weight part:
100 parts of ethylene-vinyl acetate copolymers,
0.1～2.0 part of linking agent,
0.1～10.0 part of additional crosslinker,
Auxiliary agent content is suitable.
Vinyl acetate in the said ethylene-vinyl acetate copolymer is 25～33%.
Said additional crosslinker is 1:10～10:1 with the ratio of the consumption of linking agent.
Preferably, said additional crosslinker is 1:5～5:1 with the ratio of the consumption of linking agent.
Preferably, the consumption of said linking agent is 0.5～1.5 part.
Said linking agent is the adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates, 2; 5-dimethylhexane-2,5-ditertiary butyl peroxide, 1,1-two (tert-butyl hydroperoxide)-3; 3; 5-trimethyl-cyclohexane, 2,5-dimethyl--2, two (benzoyl the peroxide)-hexanes, adjacent-tert-pentyl-neighbour-(2-ethylhexyl)-list-peroxycarbonates, adjacent-tertiary butyl-neighbour-sec.-propyl-list-peroxycarbonates, 3 of 5-; Two (tert-butyl peroxide) ethyl n-butyrates of 3-, normal-butyl-4, the mixture of one or more in 4-two (tert-butyl hydroperoxide) valerate.
Said additional crosslinker is trimethylolpropane tris allyl ester, trimethylolpropane trimethacrylate, N, the mixture of one or more in a N '-phenyl-bismaleimide, ethylene glycol diacrylate, Diethylene Glycol dimethacrylate, zinc acrylate resin, triallylcyanurate, cyanacrylate, the zinc dimethacrylate.
Said auxiliary agent is oxidation inhibitor, ultraviolet absorbers, photostabilizer and tackifier.
Said oxidation inhibitor does not have special qualification, is the conventional oxidation inhibitor in this area.As its example; Can enumerate following several kinds: four (β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, the β-positive octadecanol ester of (4-hydroxy phenyl-3,5-di-t-butyl) propionic acid, 2,6 di tert butyl 4 methyl phenol, 2; 2'-methylene-bis (4-methyl-6-tert butyl phenol), tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) esters and three (nonyl phenyl) phosphorous acid ester.With respect to 100 parts of ethylene-vinyl acetate copolymers, oxidation inhibitor is with 0.1～1.0 part of use.
Said ultraviolet absorbers does not have special qualification, is the conventional ultraviolet absorbers in this area.As its example; Can enumerate following several kinds: 2-hydroxyl-4-methoxy benzophenone, UV-531,2-(2'-hydroxyl-5'-aminomethyl phenyl) benzotriazole, 2-(2'-hydroxyl-3'; 5'-two tertiary amyl phenyl) benzotriazole, 2-(the 2'-hydroxyl-3'-tertiary butyl-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-5-chlorinated benzotriazole, 2-(the special octyl phenyl of 2'-hydroxyl-5'-) benzotriazole, 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylphenol.With respect to 100 parts of ethylene-vinyl acetate copolymers, ultraviolet absorbers is with 0.1～1.0 part of use.
Said photostabilizer does not have special qualification, is the conventional photostabilizer in this area.As its example, can enumerate following several kinds: two (2,2,6,6-tetramethyl--4-piperidyl) sebate, gather that { [6-[(1,1; 3, the 3-tetramethyl butyl)-amido] 1,3,5 ,-triazine-2,4-two bases] [(2; 2,6, the 6-tetramethyl-piperidyl)-imido grpup]-1,6-hexane two bases-[(2,2; 6,6-tetramethyl-piperidyl)-imido grpup], poly-succinic (4-hydroxyl-2,2,6,6-tetramethyl--1-piperidines ethanol) ester.With respect to 100 parts of ethylene-vinyl acetate copolymers, photostabilizer is with 0.1～1.0 part of use.
Said tackifier are γ-methacryloxypropyl trimethoxy silane.With respect to 100 parts of ethylene-vinyl acetate copolymers, tackifier are with 0.1～1.0 part of use.
The invention has the beneficial effects as follows:
1. the introducing of additional crosslinker has improved the reticulated structure after the resin crosslinks, makes film have more excellent performances such as moisture-proof heat, ultraviolet resistance and heat oxygen aging resistance, long service life;
2. through the proportioning of adjustment additional crosslinker and linking agent, improve cross-linking efficiency, made the consumption of linking agent and residual quantity all descend greatly, avoided the catabiosis that causes because of linking agent is residual;
3. through selecting suitable additional crosslinker, linking agent is decomposed under lower temperature, accelerate cross-linked speed, reduce the energy expenditure in the solar module production process, also improve production efficiency simultaneously.
Embodiment
The present invention can obtain through the preparation method of routine easily.Through each embodiment content of the present invention is done further detailed description below, protection scope of the present invention comprises but is not limited to following each embodiment.
Embodiment 1
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 25%;
Linking agent: adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates-0.1 part;
Additional crosslinker: cyanacrylate-0.1 part, the proportioning of cyanacrylate and the adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates is 1:1;
Oxidation inhibitor: four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester-0.1 part;
Ultraviolet absorbers: 2-hydroxyl-4-methoxy benzophenone-0.1 part;
Photostabilizer: two (2,2,6,6-tetramethyl--4-piperidyl) sebate-0.1 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.4 part.
Said components is mixed, and mixture is extruded after the forcing machine blend, and temperature is controlled at 90
oAbout C, extrudate through curtain coating, cool off, cut, coiling process, promptly get the eva film that thickness is 0.5 mm (being the Injecatable EVA Copolymer film).
Embodiment 2
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 25%;
Linking agent: 2,5-dimethylhexane-2,5-ditertiary butyl peroxide-1.0 part;
Additional crosslinker: triallylcyanurate-0.2 part, triallylcyanurate and 2,5-dimethylhexane-2, the proportioning of 5-ditertiary butyl peroxide is 1:5;
Oxidation inhibitor: β-positive octadecanol ester-0.5 of (4-hydroxy phenyl-3,5-di-t-butyl) propionic acid part, 2,6 di tert butyl 4 methyl phenol-0.5 part;
Ultraviolet absorbers: UV-531-0.3 part;
Photostabilizer: two (2,2,6,6-tetramethyl--4-piperidyl) sebate-0.2 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.5 part.
The preparation method is with embodiment 1.
Embodiment 3
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 28%;
Linking agent: 1,1-two (tert-butyl hydroperoxide)-3,3,5-trimethyl-cyclohexane-1.0 part;
Additional crosslinker: cyanacrylate-10.0 part, cyanacrylate and 1,1-two (tert-butyl hydroperoxide)-3,3, the proportioning of 5-trimethyl-cyclohexane is 10:1;
Oxidation inhibitor: β-positive octadecanol ester-0.2 of (4-hydroxy phenyl-3,5-di-t-butyl) propionic acid part, 2,6 di tert butyl 4 methyl phenol-0.3 part;
Ultraviolet absorbers: 2-(the 2'-hydroxyl-3'-tertiary butyl-5'-aminomethyl phenyl)-5-chlorinated benzotriazole-0.2 part;
Photostabilizer: two (2,2,6,6-tetramethyl--4-piperidyl) sebate-0.4 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-1.0 part.
The preparation method is with embodiment 1.
Embodiment 4
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 33%;
Linking agent: 2,5-dimethyl--2, two (benzoyl peroxide)-hexanes-2.0 of 5-part;
Additional crosslinker: zinc dimethacrylate-1.0 part, zinc dimethacrylate and 2,5-dimethyl--2, the proportioning of two (benzoyl the peroxide)-hexanes of 5-is 1:2;
Oxidation inhibitor: 2 ,-0.2 part of 2'-methylene-bis (4-methyl-6-tert butyl phenol);
Ultraviolet absorbers: 2-(2'-hydroxyl-5'-aminomethyl phenyl) benzotriazole-1.0 part;
Photostabilizer: gather { [6-[(1,1,3, the 3-tetramethyl butyl)-amido] 1,3,5 ,-triazine-2,4-two bases] [(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup]-1,6-hexane two bases-[(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup] }-0.5 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.1 part.
The preparation method is with embodiment 1.
Embodiment 5
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 33%;
Linking agent: adjacent-tert-pentyl-neighbour-(2-ethylhexyl)-list-peroxycarbonates-2.0 part;
Additional crosslinker: cyanacrylate-0.1 part, trimethylolpropane tris allyl ester-0.1 part, the proportioning of additional crosslinker and linking agent is 1:10;
Oxidation inhibitor: 2 ,-0.3 part of 2'-methylene-bis (4-methyl-6-tert butyl phenol);
Ultraviolet absorbers: 2-(2'-hydroxyl-3', 5'-two tertiary amyl phenyl) benzotriazole-0.5 part;
Photostabilizer: gather { [6-[(1,1,3, the 3-tetramethyl butyl)-amido] 1,3,5 ,-triazine-2,4-two bases] [(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup]-1,6-hexane two bases-[(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup] }-0.6 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.2 part;
The preparation method is with embodiment 1.
Embodiment 6
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 25%;
Linking agent: adjacent-tertiary butyl-neighbour-sec.-propyl-list-peroxycarbonates-0.5 part;
Additional crosslinker: triallylcyanurate-0.25 part, trimethylolpropane trimethacrylate-0.25 part, the proportioning of additional crosslinker and linking agent is 1:1;
Oxidation inhibitor: 2 ,-0.1 part of 2'-methylene-bis (4-methyl-6-tert butyl phenol);
Ultraviolet absorbers: 2-(the 2'-hydroxyl-3'-tertiary butyl-5'-aminomethyl phenyl)-5-chlorinated benzotriazole-0.1 part;
Photostabilizer: gather { [6-[(1,1,3, the 3-tetramethyl butyl)-amido] 1,3,5 ,-triazine-2,4-two bases] [(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup]-1,6-hexane two bases-[(2,2,6, the 6-tetramethyl-piperidyl)-imido grpup] }-0.2 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.3 part;
The preparation method is with embodiment 1.
Embodiment 7
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 33%;
Linking agent: 3, two (tert-butyl peroxide) ethyl n-butyrates-0.4 of 3-part;
Additional crosslinker: N, N '-phenyl-bismaleimide-2.0 part, N, a N '-phenyl-bismaleimide and 3, the proportioning of two (tert-butyl peroxide) ethyl n-butyrates of 3-is 5:1;
Oxidation inhibitor: tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester-1.0 part;
Ultraviolet absorbers: 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-5-chlorinated benzotriazole-0.2 part;
Photostabilizer: poly-succinic (4-hydroxyl-2,2,6,6-tetramethyl--1-piperidines ethanol) ester-0.1 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.4 part.
The preparation method is with embodiment 1.
Embodiment 8
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 25%;
Linking agent: normal-butyl-4,4-two (tert-butyl hydroperoxide) valerate-1.0 part;
Additional crosslinker: ethylene glycol diacrylate-1.2 part, ethylene glycol diacrylate and normal-butyl-4, the proportioning of 4-two (tert-butyl hydroperoxide) valerate is 6:5;
Oxidation inhibitor: tricresyl phosphite (2, the 4-di-tert-butyl-phenyl) ester-0.6 part;
Ultraviolet absorbers: 2-(2'-hydroxyl-5'-special octyl phenyl) benzotriazole-0.4 part;
Photostabilizer: poly-succinic (4-hydroxyl-2,2,6,6-tetramethyl--1-piperidines ethanol) ester-0.2 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.6 part.
The preparation method is with embodiment 1.
Embodiment 9
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 28%;
Linking agent: adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates-0.6 part, 1,1-two (tert-butyl hydroperoxide)-3,3,5-trimethyl-cyclohexane-0.6 part;
Additional crosslinker: Diethylene Glycol dimethacrylate-0.72 part, the proportioning of Diethylene Glycol dimethacrylate and the adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates is 3:5;
Oxidation inhibitor: three (nonyl phenyl) phosphorous acid ester-0.1 part;
Ultraviolet absorbers: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylphenol-0.2 part;
Photostabilizer: poly-succinic (4-hydroxyl-2,2,6,6-tetramethyl--1-piperidines ethanol) ester-0.3 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.3 part.
The preparation method is with embodiment 1.
Embodiment 10
Proportioning raw materials of the present invention is by following weight part.
Injecatable EVA Copolymer-100 part, the vinyl acetate content in the Injecatable EVA Copolymer is 28%;
Linking agent: 2,5-dimethylhexane-2,5-ditertiary butyl peroxide-1.0 part;
Additional crosslinker: zinc acrylate resin-0.8 part, zinc acrylate resin and 2,5-dimethylhexane-2, the proportioning of 5-ditertiary butyl peroxide is 4:5;
Oxidation inhibitor: three (nonyl phenyl) phosphorous acid ester-0.3 part;
Ultraviolet absorbers: 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylphenol-0.3 part;
Photostabilizer: two (2,2,6,6-tetramethyl--4-piperidyl) sebate-1.0 part;
Tackifier: γ-methacryloxypropyl trimethoxy silane-0.1 part.
The preparation method is with embodiment 1.
Linking agent of the present invention is except the single adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates, 2,5-dimethylhexane-2, the 5-ditertiary butyl peroxide, 1 selected for use; 1-two (tert-butyl hydroperoxide)-3,3,5-trimethyl-cyclohexane, 2; 5-dimethyl--2; Two (benzoyl the peroxide)-hexanes, adjacent-tert-pentyl-neighbour-(2-ethylhexyl)-list-peroxycarbonates, adjacent-tertiary butyl-neighbour-sec.-propyl-list-peroxycarbonates, 3 of 5-, two (tert-butyl peroxide) ethyl n-butyrates of 3-or normal-butyl-4 are outside 4-two (tert-butyl hydroperoxide) valerate; Their two or more mixtures can also be selected for use, technical purpose of the present invention can be reached equally.In like manner; Additional crosslinker of the present invention is except single trimethylolpropane tris allyl ester, trimethylolpropane trimethacrylate, the N of selecting for use; A N '-phenyl-bismaleimide, ethylene glycol diacrylate, Diethylene Glycol dimethacrylate, zinc acrylate resin, triallylcyanurate, cyanacrylate or zinc dimethacrylate can also be selected their two or more mixtures for use at home and abroad.
The eva film of above-mentioned each embodiment gained carries out the performance test evaluation through following testing method, and test result is seen table 1.
1. degree of crosslinking
Gained solar cell package film laminating impregnated in the YLENE 140 after crosslinked
oC backflow 5h collects insoluble part, and dry back weighing is also calculated degree of crosslinking.
2. UV is aging
Carry out UV burn-in test, test condition according to International Electrotechnical Commission Standard IEC 61345 regulations: specimen surface temperature 60 ± 5
oC, test period 2000h, wavelength 280～400nm scope, irradiation intensity is 1.5 kWh/m
2The xanthochromia index is tested according to GB 2409-80 " plastics yellowness index TP ".
3. wet and heat ageing resistant
Carry out hydrothermal aging test, test conditions: test temperature 85 according to GB/T 2423.3 TPs
oC, relative humidity 85%, test period 2000h.The xanthochromia index is tested according to GB 2409-80 " plastics yellowness index TP ".
4. heat oxygen aging resistance
Test conditions: test temperature 100
oC, test period 2000h.The xanthochromia index is tested according to GB 2409-80 " plastics yellowness index TP ".
The The performance test results of above-mentioned each embodiment gained eva film of table 1
Claims (9)
1. an ethylene-vinyl acetate copolymer packaging film as the solar module encapsulation, is characterized in that the constitutive material of said film comprises ethylene-vinyl acetate copolymer, linking agent, additional crosslinker and auxiliary agent.
2. according to the said ethylene-vinyl acetate copolymer packaging film of claim 1, it is characterized in that the proportioning raw materials of said film is by following weight part:
100 parts of ethylene-vinyl acetate copolymers,
0.1～2.0 part of linking agent,
0.1～10.0 part of additional crosslinker,
Auxiliary agent content is suitable.
3. according to claim 1 or 2 said ethylene-vinyl acetate copolymer packaging films, it is characterized in that the vinyl acetate in the said ethylene-vinyl acetate copolymer is 25～33%.
4. according to claim 1 or 2 said ethylene-vinyl acetate copolymer packaging films, it is characterized in that said additional crosslinker is 1:10～10:1 with the ratio of the consumption of linking agent.
5. according to the said ethylene-vinyl acetate copolymer packaging film of claim 4, it is characterized in that said additional crosslinker is 1:5～5:1 with the ratio of the consumption of linking agent.
6. according to the said ethylene-vinyl acetate copolymer packaging film of claim 2, it is characterized in that the consumption of said linking agent is 0.5～1.5 part.
7. according to claim 1 or 2 said ethylene-vinyl acetate copolymer packaging films; It is characterized in that said linking agent is the adjacent-tertiary butyl-neighbour-(2-ethylhexyl) single peroxycarbonates, 2,5-dimethylhexane-2; 5-ditertiary butyl peroxide, 1; 1-two (tert-butyl hydroperoxide)-3,3,5-trimethyl-cyclohexane, 2; 5-dimethyl--2; Two (benzoyl the peroxide)-hexanes, adjacent-tert-pentyl-neighbour-(2-ethylhexyl)-list-peroxycarbonates, adjacent-tertiary butyl-neighbour-sec.-propyl-list-peroxycarbonates, 3 of 5-, two (tert-butyl peroxide) ethyl n-butyrates of 3-, normal-butyl-4, the mixture of one or more in 4-two (tert-butyl hydroperoxide) valerate.
8. according to claim 1 or 2 said ethylene-vinyl acetate copolymer packaging films; It is characterized in that; Said additional crosslinker is trimethylolpropane tris allyl ester, trimethylolpropane trimethacrylate, N, the mixture of one or more in a N '-phenyl-bismaleimide, ethylene glycol diacrylate, Diethylene Glycol dimethacrylate, zinc acrylate resin, triallylcyanurate, cyanacrylate, the zinc dimethacrylate.
9. according to claim 1 or 2 said ethylene-vinyl acetate copolymer packaging films, it is characterized in that said auxiliary agent is oxidation inhibitor, ultraviolet absorbers, photostabilizer and tackifier.
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| TWI586740B (en) * | 2013-08-27 | 2017-06-11 | 韓華道達爾股份有限公司 | Eva copolymer and method of preparing the same |
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| CN111286240A (en) * | 2020-03-19 | 2020-06-16 | 电子科技大学 | Ultraviolet radiation prevention film material and ultraviolet radiation prevention film for photoelectronic device and preparation method thereof |
| CN114163935A (en) * | 2020-09-11 | 2022-03-11 | 上海共城通信科技有限公司 | Multilayer ionic resin packaging adhesive film for photovoltaic module and module structure |
| CN114163936A (en) * | 2020-09-11 | 2022-03-11 | 上海共城通信科技有限公司 | Ionic resin packaging adhesive film and laminated structure |
| CN114163932A (en) * | 2020-09-11 | 2022-03-11 | 上海共城通信科技有限公司 | Preparation method of ionic resin packaging adhesive film |
| CN114644893A (en) * | 2020-12-17 | 2022-06-21 | 杭州福斯特应用材料股份有限公司 | Packaging adhesive film, preparation method thereof and solar cell module |
| CN114644894A (en) * | 2020-12-17 | 2022-06-21 | 杭州福斯特应用材料股份有限公司 | Packaging composition, packaging adhesive film and electronic component |
| WO2022127070A1 (en) * | 2020-12-17 | 2022-06-23 | 杭州福斯特应用材料股份有限公司 | Encapsulating composition, composition, encapsulating glue film, electronic component and solar cell assembly |
| CN115537127A (en) * | 2021-06-29 | 2022-12-30 | 杭州福斯特应用材料股份有限公司 | Composition, packaging adhesive film, electronic component and solar cell module |
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Application publication date: 20120328 |