CN100424126C - Aging-resistant EVA film adhesive for solar cell package and method for preparing same - Google Patents
Aging-resistant EVA film adhesive for solar cell package and method for preparing same Download PDFInfo
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- CN100424126C CN100424126C CNB2005100347501A CN200510034750A CN100424126C CN 100424126 C CN100424126 C CN 100424126C CN B2005100347501 A CNB2005100347501 A CN B2005100347501A CN 200510034750 A CN200510034750 A CN 200510034750A CN 100424126 C CN100424126 C CN 100424126C
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- film adhesive
- eva
- aging
- solar cell
- glued membrane
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10678—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer comprising UV absorbers or stabilizers, e.g. antioxidants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
Abstract
The present invention relates to a thermal oxygen and ultraviolet light aging resistant EVA film adhesive for packaging solar cells and a preparation method thereof. The preparation components of the film adhesive comprises ethane-vinyl acetate copolymer (EVA), cross-linking and curing agent, ultraviolet light absorbent, antioxidant and hindered amine light stabilizer. During preparation, the EVA, the cross-linking and curing agent and viscosity increaser are uniformly mixed first; then, the antioxidant, the ultraviolet light absorbent and the ultraviolet stabilizer are added into the mixture; the mixture is poured into an extruder for blending and extruding, the extruded mixture is proceeded through process steps, such as casting, cooling, drawing, coiling, etc.; finally, the thermal oxygen and ultraviolet light aging resistant EVA film adhesive for packaging solar cells is obtained. The EVA film adhesive can be subjected to long-time thermal oxygen ageing and ultraviolet light aging and does not change colors. The present invention has the advantages of high visible light transmittance and application wide range and the production cost of the present invention is lower than that of a foreign product with the same quality.
Description
Technical field
The present invention relates to the solar cell package material, particularly a kind of heat-resisting oxygen and ultraviolet light and aging are used for EVA (ethylene-vinyl acetate copolymer) glued membrane of solar cell package and preparation method thereof.
Background technology
Solar cell is by means of two-layer polymer encapsulating film silicon wafer to be packaged in wherein, again and up and down protective layer material glass and TPT film bonding.At first, packaged material must be a printing opacity, and transmitance is high, could guarantee that like this solar module after the encapsulation has enough photoelectric transformation efficiencies; In addition, the packaged material bounding force must be eager to excel, and so just can better fix and protect solar cell piece; Packaged material must be a softish before cure package, was easy to change shape, could encapsulate according to the shape of solar cell like this and can not damage the battery sheet.But it must be heat cured behind the package curing, because solar components will move under the pyritous condition, if thermoplastic deformation will take place, and seriously also can gummosis, lost provide protection to solar cell.
Before this century the eighties, once tried out liquid silicone resin and polyvinyl butyral resin sheet (PVB) both at home and abroad, all because of price height, execution conditions harshness, rerum natura is bad is eliminated.The eighties begins, U.S. Jet Propulsion and Springbom laboratory, the F.J.Pern of National Renewable Energy Laboratory (NREL) etc. just begins the solar cell packaged material is studied, light transmission according to material, modulus, workability, characteristics such as price, list ethylene-vinyl acetate copolymer (EVA) and ethylene-methyl methacrylate methyl esters (EMMA) in the JPL plan, then again at the flavescence easily under abominable weather condition of EVA glued membrane, thereby the shortcoming that influences the solar cell photoelectric turnover ratio has been carried out some researchs, has succeeded in developing ageing-resistant EVA packaging adhesive film at last.Yet, in the document of abroad publishing, mainly the composition and the aging resistance of EVA glued membrane are studied, the preparation flow of EVA glued membrane is related to very few, and EVA glued membrane price height.Domesticly also EVA sun power packaging adhesive film is studied, existing finished product is sold on market, but its effect still can not satisfy the requirement of solar cell package fully, it is poor that the comparison distinct issues remain the anti-weather of glued membrane, flavescence easily, the transmittance of influence itself, thereby the photoelectric transformation efficiency of reduction solar components.In addition, if adopt that transmittance is good, light weight, PC that anti-weather-aging property is good do under the situation of upper cover plate, the bounding force of home-made EVA glued membrane and PC does not just reach requirement at present, comes unstuck easily.
Summary of the invention
The objective of the invention is to deficiency, the preparation method of a kind of heat-resisting oxygen, the aging EVA film adhesive for solar cell package of ultraviolet resistance is provided at the weathering resistance of used for solar batteries EVA glued membrane in the prior art.
Another object of the present invention is to provide the aging-resistant EVA film adhesive for solar cell package of method for preparing.
Mechanism of the present invention: with EVA (ethylene-vinyl acetate copolymer) is matrix, select suitable ageing-resistant system (comprising oxidation inhibitor, ultraviolet absorbers and UV light stabilizing agent), crosslinking and curing agent and tackifier for use, adopt the mode of mechanical extrusion calendaring moulding to make the EVA glued membrane.
Purpose of the present invention is achieved through the following technical solutions:
A kind of aging-resistant EVA film adhesive for solar cell package preparation method comprises the steps and processing condition:
(1), the multipolymer of 100 parts of ethene-vinyl acetates, 0.5～1.25 part of crosslinking and curing agent and 0～0.4 part of tackifier are mixed in mass fraction;
(2), 0.1～0.2 part of oxidation inhibitor, 0.1～0.2 part of uv-absorbing agent, 0.1～0.2 part of hindered amine light stabilizer are joined in the mixture of step (1) preparation, and mix in mass fraction;
(3) mixture of step (2) preparation is poured into forcing machine and carried out blend and extrude, temperature is controlled at 80～88 ℃, and extrudate obtains EVA film adhesive for solar cell package through curtain coating, cooling, traction, coiling process;
The vinyl acetate content of described EVA pellet is 28%～35%;
Described crosslinking and curing agent is 2,5-dimethyl-2, two (t-butyl peroxy) hexanes or 1 of 5-, 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane;
Described oxidation inhibitor is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester perhaps is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, it perhaps is β-(4-hydroxyl-3,5 di-tert-butyl-phenyls) the positive octadecanol ester of propionic acid perhaps is N, N '-1,6-dihexyl two (3,5-two (1, the 1-dimethyl ethyl)-4-hydroxybenzene propionyl), perhaps be tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester);
Described ultraviolet absorbers is Octabenzone or 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yls of 6-]-5-(octyloxy) phenol;
Described UV light stabilizing agent is two (1-octyloxy-2,2,6, the 6-tetramethyl--4-piperidyl) diester in the last of the ten Heavenly stems of hindered amine light stabilizer, perhaps is two (2,2,6,6-tetramethyl--4-piperidyl) sebates.
A kind of aging-resistant EVA film adhesive for solar cell package is by method for preparing; Described EVA glued membrane is thick to be 0.3～0.8mm; Described thick bond strength for 0.5mm EVA glued membrane and glass and PC is respectively 33.8～56.6N/cm and 26.5～53.7N/cm according to standard GB/T 2790-1995 test.
The present invention reaches required value at the bounding force of guaranteeing EVA glued membrane and glass, TPT and PC, i.e. EVA/ glass 〉=30N/cm; EVA/TPT 〉=30N/cm; Under the prerequisite of EVA/PC 〉=25N/cm, select and the composite system that can increase substantially the heat-resisting oxygen and the resistance to UV aging energy of EVA packaging plastic, successfully develop the EVA glued membrane of heat-resisting oxygen, ultraviolet resistance, performance is better than home products, near external product, price is significantly less than external product.
Compared with prior art the inventive method has following advantage:
(1) heat-resisting oxygen, resistance to UV aging can be better than existing homemade goods, near external product;
(2) EVA resin and other component can be extruded through blend, curtain coating, cooling, operation time processing film forming such as draw, batch, with existing blend extruding pelletization, and then the processing mode of fusion, calendering formation is compared, the course of processing is less to the destruction of EVA molecular resin, the production efficiency height, energy-conservation;
(3) the EVA glued membrane that obtains of the present invention can satisfy with the bounding force requirement of differing materials (, light weight good as transmittance, the PC that anti-weather-aging property is good) when making upper cover plate, and wider than existing homemade goods application surface, prospect will be got well.
Embodiment
Below in conjunction with embodiment the specific embodiment of the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
In mass fraction, with 2 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.25 parts, 5-dimethyl-2, it is to mix in 33% the EVA pellet (multipolymer of ethene-vinyl acetate) that two (t-butyl peroxy) hexanes of 5-are added to 100 parts of VA content as crosslinking and curing agent; Again with 0.2 part of β-positive octadecanol ester of (4-hydroxyl-3,5 di-tert-butyl-phenyl) propionic acid as oxidation inhibitor, two (2,2,6, the 6-tetramethyl--4-piperidyl) sebates of 0.1 part of UV light stabilizing agent add said mixture, and mix.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 80 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-1 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 2
With the crosslinking and curing agent 2 of 0.40 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.50 parts, it is to mix in 33% the EVA pellet that 5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, 0.10 part of UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate and 0.05 part of two (1-octyloxy-2,2,6,6-tetramethyl--4-piperidyl) diester adding in last of the ten Heavenly stems said mixture, and mix.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 85 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-2 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment, and the former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 3
With the crosslinking and curing agent 2 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.00 parts, it is to mix in 33% the EVA pellet that 5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, 0.2 part of ultraviolet absorbers Octabenzone, 0.1 part UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate adds said mixture, and mixes.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 83 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-3 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 4
With the crosslinking and curing agent 2 of 0.40 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.25 parts, it is to mix in 28% the EVA pellet that 5-dimethyl-2, two (t-butyl peroxy) hexanes of 5-are added to 100 parts of VA content; With 0.2 part of oxidation inhibitor four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 0.1 part of two (2,2,6,6-tetramethyl--4-piperidyl) sebate of UV light stabilizing agent adds said mixture, and mixes again.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 88 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-4 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 5
With the crosslinking and curing agent 1 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.25 parts, it is to mix in 33% the EVA pellet that 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor N, N '-1,6-dihexyl two (3,5-two (1, the 1-dimethyl ethyl)-4-hydroxybenzene propionyl), 0.3 part of ultraviolet absorbers 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3 of 6-, 5-triazine-2-yl]-5-(octyloxy) phenol, 0.2 part UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate adds said mixture, and mixes.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 82 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-5 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 6
With the crosslinking and curing agent 1 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.00 parts, it is to mix in 33% the EVA pellet that 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), 0.2 part ultraviolet absorbers 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3 of 6-, 5-triazine-2-yl]-5-(octyloxy) phenol, 0.1 part UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate adds said mixture, and mixes.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 84 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-6 of 0.5mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 7
With the crosslinking and curing agent 1 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.00 parts, it is to mix in 33% the EVA pellet that 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), 0.2 part ultraviolet absorbers 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3 of 6-, 5-triazine-2-yl]-5-(octyloxy) phenol, 0.1 part UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate adds said mixture, and mixes.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 84 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-7 of 0.3mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
Embodiment 8
With the crosslinking and curing agent 1 of 0.25 part of tackifier γ-An Bingjisanyiyangjiguiwan and 1.00 parts, it is to mix in 33% the EVA pellet that 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane are added to 100 parts of VA content; Again with 0.2 part of oxidation inhibitor tricresyl phosphite (single nonyl benzene and dinonyl benzene mixed ester), 0.2 part ultraviolet absorbers 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3 of 6-, 5-triazine-2-yl]-5-(octyloxy) phenol, 0.1 part UV light stabilizing agent two (2,2,6,6-tetramethyl--4-piperidyl) sebate adds said mixture, and mixes.Pour mixture into forcing machine and carry out blend and extrude, temperature is controlled at 84 ℃, and through curtain coating, cooling, traction, coiling process, promptly getting thickness is the EVA glued membrane B-8 of 0.8mm at extrudate.EVA glued membrane after crosslinked is carried out thermo-oxidative ageing experiment and ultraviolet light and aging experiment.The former condition is 100 ℃, 720h; The latter condition is UVB 313 type ultraviolet lamps, and radiating capacity is 0.63W/m
2/ nm; Exposure condition is radiation 4 hours under 60 ℃ of conditions at blackboard temperature earlier, after stop radiation 50 ℃ of following condensations 4 hours.Exposure duration 1000h.
According to the bond properties of the prepared EVA glued membrane of the present invention and heat-resisting oxygen, resistance to UV aging can test result shown in table 1, table 2.In order to make test result have comparability, it is thick that the glued membrane that is used to test is 0.5mm.
1. the test result of bond properties
The bond strength of EVA glued membrane and glass or TPT is tested according to standard GB/T 2790-1995; The bond strength of EVA glued membrane and PC is tested according to standard GB/T 2791-1995.
The bond strength of table 1EVA glued membrane and glass, TPT and PC
2. before and after hot oxygen and the ultraviolet light and aging to the variation (Δ T) of the transmitance of visible light and
The variation of yellowness index (Δ YI)
Table hot oxygen of 2EVA glued membrane and ultraviolet light and aging front and back are to the variation (Δ T) of the transmitance of visible light
Variation (Δ YI) with yellowness index
Claims (6)
1. the preparation method of an aging-resistant EVA film adhesive for solar cell package is characterized in that comprising the steps and processing condition:
(1), the multipolymer of 100 parts of ethene-vinyl acetates, 0.5～1.25 part of crosslinking and curing agent and 0～0.4 part of tackifier are mixed in mass fraction;
(2), 0.1～0.2 part of oxidation inhibitor, 0.1～0.2 part of uv-absorbing agent, 0.1～0.2 part of hindered amine light stabilizer are joined in the mixture of step (1) preparation, and mix in mass fraction;
(3) mixture of step (2) preparation is poured into forcing machine and carried out blend and extrude, temperature is controlled at 80～88 ℃, and extrudate obtains EVA film adhesive for solar cell package through curtain coating, cooling, traction, coiling process;
Described hindered amine light stabilizer is two (1-octyloxy-2,2,6,6-tetramethyl--4-piperidyl) diester in the last of the ten Heavenly stems or two (2,2,6,6-tetramethyl--4-piperidyl) sebate;
Described crosslinking and curing agent is 2,5-dimethyl-2, two (t-butyl peroxy) hexanes or 1 of 5-, 1-(two tert-butyl peroxide) 3,3,5-trimethyl-cyclohexane;
Described ultraviolet absorbers is Octabenzone or 2-[4, two (2, the 4-3,5-dimethylphenyl)-1,3,5-triazines-2-yls of 6-]-5-(octyloxy) phenol;
Described oxidation inhibitor is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, β-(4-hydroxyl-3,5 di-tert-butyl-phenyls) positive octadecanol ester of propionic acid or N, N '-1,6-dihexyl two (3,5-two (1, the 1-dimethyl ethyl)-4-hydroxybenzene propionyl).
2. according to the preparation method of the described a kind of aging-resistant EVA film adhesive for solar cell package of claim 1, it is characterized in that: described tackifier are γ-An Bingjisanyiyangjiguiwan.
3. according to the preparation method of the described a kind of aging-resistant EVA film adhesive for solar cell package of claim 1, it is characterized in that: wherein said ethylene-vinyl acetate copolymer has the content of 28%～35% vinyl acetate between to for plastic.
4. an aging-resistant EVA film adhesive for solar cell package is characterized in that this EVA glued membrane is by the described method preparation of claim 1; Described EVA glued membrane is thick to be 0.3～0.8mm; Described thick bond strength for 0.5mm EVA glued membrane and glass and PC is respectively 33.8～56.6N/cm and 26.5～53.7N/cm according to standard GB/T 2790-1995 test.
5. according to the described aging-resistant EVA film adhesive for solar cell package of claim 4, it is characterized in that: the transmitance to visible light before and after the test of the EVA glued membrane of the described thick 0.5mm of being thermo-oxidative ageing test in 720 hours is changed to-3.5～-1.1%; Yellowness index is changed to 0.3～2.3 before and after its test.
6. according to the described aging-resistant EVA film adhesive for solar cell package of claim 4, it is characterized in that: described thick in the transmitance to visible light before and after the test of 0.5mm EVA glued membrane ultraviolet light and aging test in 1000 hours is changed to-0.1～21.3%, yellowness index is changed to-3.4～3.4 before and after its test.
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| CNB2005100347501A CN100424126C (en) | 2005-05-27 | 2005-05-27 | Aging-resistant EVA film adhesive for solar cell package and method for preparing same |
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| CNB2005100347501A CN100424126C (en) | 2005-05-27 | 2005-05-27 | Aging-resistant EVA film adhesive for solar cell package and method for preparing same |
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| CN100424126C true CN100424126C (en) | 2008-10-08 |
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| CN102034892B (en) * | 2009-09-28 | 2012-07-18 | 东莞市永固绝缘材料有限公司 | Production technology of encapsulated ethane-vinyl acetate copolymer (EVA) adhesive film of solar battery |
| US20120184061A1 (en) * | 2009-09-29 | 2012-07-19 | Toppan Printing Co., Ltd | Sealing material sheet for solar cell module and a method of manufacturing solar cell module |
| JP5361693B2 (en) * | 2009-12-11 | 2013-12-04 | 株式会社Ａｄｅｋａ | Sealing film for solar cell |
| CN101820001B (en) * | 2010-04-30 | 2011-08-31 | 南京红宝丽新材料有限公司 | Packaging adhesive film for solar cell |
| KR101139088B1 (en) * | 2010-05-26 | 2012-04-30 | 삼성토탈 주식회사 | EVA sheet for solar cell encapsulant and method for its preparation |
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