CN109762475A - A kind of EVA film adhesive for solar cell package and preparation method thereof - Google Patents
A kind of EVA film adhesive for solar cell package and preparation method thereof Download PDFInfo
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- CN109762475A CN109762475A CN201910011827.5A CN201910011827A CN109762475A CN 109762475 A CN109762475 A CN 109762475A CN 201910011827 A CN201910011827 A CN 201910011827A CN 109762475 A CN109762475 A CN 109762475A
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Abstract
The present invention relates to photovoltaic component encapsulating technical fields, and disclose a kind of EVA film adhesive for solar cell package, raw material including following parts by weight proportion: 100 parts of EVA resin, 2,1-4 parts of 5- dimethyl -2,5 di-t-butyl hexane peroxide, 2-6 parts of benzoyl peroxide, 0.5-2 parts of unsaturated silane coupling agent, 0.1-0.3 parts of UV absorbers, 0.5-0.8 parts of plasticizer, 1.8-2.5 parts of antioxidant.The invention also discloses a kind of preparation methods of EVA film adhesive for solar cell package, the preparation method is using EVA resin as raw material, with 2,5- dimethyl -2,5 di-t-butyl hexane peroxides and benzoyl peroxide are multiple crosslinking agent, using unsaturated silane as coupling agent, using UV absorbers, plasticizer and antioxidant as modified additive, EVA adhesive film is prepared.The present invention solves the technical problem that light transmittance existing for EVA adhesive film is not high and peel strength is poor.
Description
Technical field
The present invention relates to photovoltaic component encapsulating technical field, specially a kind of EVA film adhesive for solar cell package and its
Preparation method.
Background technique
The principle of solar power generation is that the visible light of the sun is directly changed into electricity using the quantum effect of the semiconductors such as silicon
Can, but if silicon wafer is directly exposed in atmosphere, photoelectric conversion function can decay, and use EVA glue-line by silicon thus
Chipset encapsulating, and be integrated with upper layer protection materials glass, the bonding of lower layer's protection materials polyvinyl fluoride composite membrane, constitute the sun
It can solar panel.
EVA adhesive film is to add various modified additives using EVA resin as base-material, molding through screw extruder melting extrusion
Thermosetting film is mainly used for the encapsulation of solar cell module.But traditional EVA adhesive film is not high there are light transmittance and shells
The technological deficiency poor from intensity.
The present invention provides a kind of EVA film adhesive for solar cell package and preparation method thereof, it is intended to solve EVA adhesive film presence
Light transmittance is not high and technical problem that peel strength is poor.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of EVA film adhesive for solar cell package and its preparation sides
Method solves the technical problem that light transmittance existing for EVA adhesive film is not high and peel strength is poor.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme:
A kind of EVA film adhesive for solar cell package, the raw material including following parts by weight proportion: 100 parts of EVA resin,
2,5- 1-4 parts of dimethyl -2,5 di-t-butyl hexane peroxides, 2-6 parts of benzoyl peroxide, unsaturated silane coupling agent 0.5-2
Part, 0.1-0.3 parts of UV absorbers, 0.5-0.8 parts of plasticizer, 1.8-2.5 parts of antioxidant.
Preferably, the EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl-
2,52 parts of di-t-butyl hexane peroxides, 3 parts of benzoyl peroxide, 1 part of vinyl three (beta-methoxy ethyoxyl) silane coupling agent,
0.15 part of 2,4-DihydroxyBenzophenone UV absorbers, 0.6 part of di-n-octyl phthalate plasticizer, 2 parts of antioxidant.
Preferably, the EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl-
2,53 parts of di-t-butyl hexane peroxides, 4 parts of benzoyl peroxide, vinyl three (beta-methoxy ethyoxyl) silane coupling agent 1.5
Part, 0.1 part of ESCALOL 567 UV absorbers, 0.7 part of BBP(Butyl Benzyl Phthalate plasticizer, antioxygen
1.8 parts of agent.
Preferably, the EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl-
2,52 parts of di-t-butyl hexane peroxides, 5 parts of benzoyl peroxide, 1.5 parts of vinyltrimethoxysilane coupling agent, 2- hydroxyl
0.2 part of base -4- oxy-octyl benzophenone UV absorbers, 0.6 part of di-sec-octyl phthalate plasticizer, antioxidant 2
Part.
Preferably, the EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl-
2,53 parts of di-t-butyl hexane peroxides, 3 parts of benzoyl peroxide, 1 part of vinyltriethoxysilane coupling agent, single benzoic acid
0.2 part of resorcinol UV absorbers, 0.7 part of dicyclohexyl phthalate plasticizer, 2.5 parts of antioxidant.
A kind of preparation method of EVA film adhesive for solar cell package, comprising the following steps:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 30-
60min takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 1-4 mass parts and 2-6 mass parts
Formyl is uniformly mixed, and is configured to multiple crosslinking agent；
S3. by the unsaturated silane coupling agent addition of 0.5-2 mass parts by the silane of 2 mass parts, the isopropyl of 7.2 mass parts
In the diluent of the deionized water composition of pure and mild 0.8 mass parts, pH value is adjusted to 4-5, is uniformly mixed, is configured to unsaturation
Coupling agent solution；
S4. by the UV absorbers of 0.1-0.3 mass parts, the plasticizer of 0.5-0.8 mass parts, 1.8-2.5 mass parts
Antioxidant and step S2 in multiple crosslinking agent be added in the unsaturated coupling agent solution in step S3 together, be stirred
Uniformly, it is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
It onto EVA particle, at room temperature, is added in mixer after mixing 30-60min, is 150-160 DEG C, rotor speed in temperature
To be kneaded 10-20min under 35-50r/min, modified EVA resin particle is prepared in extruding pelletization；
S6. the modified EVA resin particle in step S5 is added in casting machine, at 150-160 DEG C, plasticizing squeezes out thickness
For the EVA adhesive film of 0.2-0.8mm.
(3) beneficial technical effect
Compared with prior art, the present invention has following beneficial technical effect:
1, the light transmittance of the EVA adhesive film is 92-95%, compared with the light transmittance 88-89% of the EVA adhesive film in comparative example,
Achieve the technical effect for significantly improving the light transmittance of EVA adhesive film；
Peel strength between the EVA adhesive film and glass is EVA adhesive film and glass in 33.3-36.1N/cm, with comparative example
Peel strength 15.5-16.3N/cm between glass is compared, and is achieved and is significantly improved the peel strength between EVA adhesive film and glass
Technical effect；
Peel strength between the EVA adhesive film and polyvinyl fluoride composite membrane is in 61.3-66.2N/cm, with comparative example
EVA adhesive film achieves compared with the peel strength 29.5-36.4N/cm between polyvinyl fluoride composite membrane and significantly improves EVA adhesive film
The technical effect of peel strength between polyvinyl fluoride composite membrane；
To which this technical solution not only achieves the technical effect for significantly improving EVA adhesive film light transmittance, but also achieve
Significantly improve the technical effect of the peel strength of EVA adhesive film.
2, preparation method, using EVA resin as raw material, with 2,5- dimethyl -2,5 di-t-butyl hexane peroxide and peroxide
Change benzoyl is multiple crosslinking agent, is to be modified with UV absorbers, plasticizer and antioxidant using unsaturated silane as coupling agent
Auxiliary agent prepares EVA adhesive film, achieves easily operated and easily controllable technical effect, and the EVA adhesive film prepared is with excellent
Different light transmission and excellent peel strength.
Specific embodiment
Embodiment one:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
1 part of butylperoxyhexane, 2 parts of benzoyl peroxide, 0.5 part of vinyltriethoxysilane coupling agent, septichen phenyl ester
0.1 part of UV absorbers, 0.5 part, 1.8 parts of antioxidant of phthalic acid two (2- ethyl hexyl) ester plasticiser；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 30-
60min takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 1 mass parts and 2 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. the silane by the vinyltriethoxysilane coupling agent addition of 0.5 mass parts by 2 mass parts, 7.2 mass parts
Isopropanol and 0.8 mass parts deionized water composition diluent in, adjust pH value to 4, be uniformly mixed, be configured to not
It is saturated coupling agent solution；
S4. by the septichen phenyl ester UV absorbers of 0.1 mass parts, the phthalic acid two of 0.5 mass parts
Multiple crosslinking agent in (2- ethyl hexyl) ester plasticiser, the antioxidant of 1.8 mass parts and step S2 is added to together in step S3
Unsaturated coupling agent solution in, be uniformly mixed, be configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
Onto EVA particle, at room temperature, mix 30min after be added in mixer, temperature be 150 DEG C, rotor speed 35r/
Under min, it is kneaded 10min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 150 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.2mm.
Embodiment two:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
4 parts of butylperoxyhexane, 6 parts of benzoyl peroxide, 2 parts of vinyltrimethoxysilane coupling agent, 2- (- 5 ˊ of 2 ˊ-hydroxyl-methyl
Phenyl) 0.3 part of benzotriazole UV absorbers, 0.8 part of dioctyl phthalate plasticizer, 2.5 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 60min,
It takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 4 mass parts and 6 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. the vinyltrimethoxysilane coupling agents of 2 mass parts is added by the silane of 2 mass parts, 7.2 mass parts
In the diluent of the deionized water of isopropanol and 0.8 mass parts composition, pH value is adjusted to 4-5, is uniformly mixed, is configured to not
It is saturated coupling agent solution；
S4. by the 2- of 0.3 mass parts (- 5 ˊ of 2 ˊ-hydroxyl-aminomethyl phenyl) benzotriazole UV absorbers, 0.8 mass
Multiple crosslinking agent in the dioctyl phthalate plasticizer of part, the antioxidant and step S2 of 2.5 mass parts is added to together
It in unsaturated coupling agent solution in step S3, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
Onto EVA particle, at room temperature, mix 60min after be added in mixer, temperature be 160 DEG C, rotor speed 50r/
Under min, it is kneaded 20min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 160 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.8mm.
Embodiment three:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
2 parts of butylperoxyhexane, 3 parts of benzoyl peroxide, 1 part of vinyl three (beta-methoxy ethyoxyl) silane coupling agent, 2,4- dihydroxy
0.15 part of benzophenone UV light absorber, 0.6 part of di-n-octyl phthalate plasticizer, 2 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 40min,
It takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 2 mass parts and 3 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. by the vinyl three of 1 mass parts (beta-methoxy ethyoxyl) silane coupling agent be added by 2 mass parts silane, 7.2
In the diluent of the deionized water of the isopropanol of mass parts and 0.8 mass parts composition, adjusting pH value to 4-5 is uniformly mixed,
It is configured to unsaturated coupling agent solution；
S4. by the 2,4-DihydroxyBenzophenone UV absorbers of 0.15 mass parts, the phthalic acid of 0.6 mass parts
Multiple crosslinking agent in di-n-octyl plasticizer, the antioxidant of 2 mass parts and step S2 is added to the insatiable hunger in step S3 together
It in coupling agent solution, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
Onto EVA particle, at room temperature, mix 40min after be added in mixer, temperature be 155 DEG C, rotor speed 40r/
Under min, it is kneaded 15min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 155 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.3mm.
Example IV:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
3 parts of butylperoxyhexane, 4 parts of benzoyl peroxide, 1.5 parts of vinyl three (beta-methoxy ethyoxyl) silane coupling agent, 2- hydroxyl -4-
0.1 part of methoxy benzophenone UV absorbers, 0.7 part of BBP(Butyl Benzyl Phthalate plasticizer, 1.8 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 50min,
It takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 3 mass parts and 4 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. by the vinyl three of 1.5 mass parts (beta-methoxy ethyoxyl) silane coupling agent be added by 2 mass parts silane,
In the diluent of the deionized water of the isopropanol of 7.2 mass parts and 0.8 mass parts composition, pH value is adjusted to 4-5, is stirred
It is even, it is configured to unsaturated coupling agent solution；
S4. by the ESCALOL 567 UV absorbers of 0.1 mass parts, the adjacent benzene two of 0.7 mass parts
Formic acid butyl benzyl plasticizer, 1.8 mass parts antioxidant and step S2 in multiple crosslinking agent be added in step S3 together
It in unsaturated coupling agent solution, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
It onto EVA particle, at room temperature, is added in mixer after mixing 30-60min, is 150-160 DEG C, rotor speed in temperature
To be kneaded 10-20min under 35-50r/min, modified EVA resin particle is prepared in extruding pelletization；
S6. the modified EVA resin particle in step S5 is added in casting machine, at 150-160 DEG C, plasticizing squeezes out thickness
For the EVA adhesive film of 0.2-0.8mm.
Embodiment five:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
2 parts of butylperoxyhexane, 5 parts of benzoyl peroxide, 1.5 parts of vinyltrimethoxysilane coupling agent, 2- hydroxyl -4- n-octyloxy
0.2 part of benzophenone UV light absorber, 0.6 part of di-sec-octyl phthalate plasticizer, 2 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 40min,
It takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 2 mass parts and 5 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. the silane by the vinyltrimethoxysilane coupling agent addition of 1.5 mass parts by 2 mass parts, 7.2 mass parts
Isopropanol and 0.8 mass parts deionized water composition diluent in, adjust pH value to 4-5, be uniformly mixed, be configured to
Unsaturated coupling agent solution；
S4. by the 2-hydroxy-4-n-octoxybenzophenone UV absorbers of 0.2 mass parts, the adjacent benzene of 0.6 mass parts
Dioctyl phthalate di-sec-octyl plasticizer, 2 mass parts antioxidant and step S2 in multiple crosslinking agent be added in step S3 together
Unsaturated coupling agent solution in, be uniformly mixed, be configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
It onto EVA particle, at room temperature, is added in mixer after mixing 30-60min, is 150-160 DEG C, rotor speed in temperature
To be kneaded 10-20min under 35-50r/min, modified EVA resin particle is prepared in extruding pelletization；
S6. the modified EVA resin particle in step S5 is added in casting machine, at 150-160 DEG C, plasticizing squeezes out thickness
For the EVA adhesive film of 0.2-0.8mm.
Embodiment six:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
3 parts of butylperoxyhexane, 3 parts of benzoyl peroxide, 1 part of vinyltriethoxysilane coupling agent, single benzoic acid resorcinol
0.2 part of UV absorbers, 0.7 part of dicyclohexyl phthalate plasticizer, 2.5 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 30-
60min takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 3 mass parts and 3 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. the vinyltriethoxysilane coupling agents of 1 mass parts is added by the silane of 2 mass parts, 7.2 mass parts
In the diluent of the deionized water of isopropanol and 0.8 mass parts composition, pH value is adjusted to 4-5, is uniformly mixed, is configured to not
It is saturated coupling agent solution；
S4. by single benzoic acid resorcinol UV absorbers of 0.2 mass parts, the phthalic acid of 0.7 mass parts
Multiple crosslinking agent in dicyclohexyl maleate plasticizer, the antioxidant of 2.5 mass parts and step S2 is added in step S3 not together
It is saturated in coupling agent solution, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
It onto EVA particle, at room temperature, is added in mixer after mixing 30-60min, is 150-160 DEG C, rotor speed in temperature
To be kneaded 10-20min under 35-50r/min, modified EVA resin particle is prepared in extruding pelletization；
S6. the modified EVA resin particle in step S5 is added in casting machine, at 150-160 DEG C, plasticizing squeezes out thickness
For the EVA adhesive film of 0.2-0.8mm.
Comparative example one:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 2,5- dimethyl -2,5 di-t-butyl
1 part of butylperoxyhexane, 2 parts of titanate coupling agent, single 0.2 part of benzoic acid resorcinol UV absorbers, phthalic acid
0.7 part of dicyclohexyl maleate plasticizer, 2.5 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 30min,
It takes out spare；
S2. 2,5- dimethyl -2,5 di-t-butyl hexane peroxide crosslinking agent of 1 mass parts is taken, it is spare；
S3. the titanate coupling agent of 2 mass parts is taken, it is spare；
S4. by single benzoic acid resorcinol UV absorbers of 0.2 mass parts, the phthalic acid of 0.7 mass parts
Multiple crosslinking agent in dicyclohexyl maleate plasticizer, the antioxidant of 2.5 mass parts and step S2 is added in step S3 not together
It is saturated in coupling agent solution, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
Onto EVA particle, at room temperature, mix 40min after be added in mixer, temperature be 150 DEG C, rotor speed 35r/
Under min, it is kneaded 20min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 150 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.5mm.
Comparative example two:
EVA adhesive film includes the raw material of following parts by weight proportion: 100 parts of EVA resin, 4 parts of benzoyl peroxide, titanate esters
2 parts of coupling agent, 0.1 part of ESCALOL 567 UV absorbers, BBP(Butyl Benzyl Phthalate plasticizer 0.7
Part, 1.8 parts of antioxidant；
The preparation method of above-mentioned EVA adhesive film the following steps are included:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 40min,
It takes out spare；
S2. the benzoyl peroxide of 4 mass parts is taken, it is spare；
S3. the titanate coupling agent of 2 mass parts is taken, it is spare；
S4. by the ESCALOL 567 UV absorbers of 0.1 mass parts, the adjacent benzene two of 0.7 mass parts
Formic acid butyl benzyl plasticizer, 1.8 mass parts antioxidant and step S2 in multiple crosslinking agent be added in step S3 together
It in unsaturated coupling agent solution, is uniformly mixed, is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then by the modified additive spray solution in step S4
Onto EVA particle, at room temperature, mix 50min after be added in mixer, temperature be 160 DEG C, rotor speed 50r/
Under min, it is kneaded 20min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 160 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.6mm.
Performance test:
One, the light transmittance of test above-described embodiment and the EVA adhesive film in comparative example, test result are shown in Table 1；
Table 1
| Sample | Light transmittance (%) |
| Embodiment one | 92 |
| Embodiment two | 93 |
| Embodiment three | 94 |
| Example IV | 93 |
| Embodiment five | 94 |
| Embodiment six | 95 |
| Comparative example one | 88 |
| Comparative example two | 89 |
Two, above-described embodiment and the EVA adhesive film in comparative example and the peel strength between glass are tested, above-mentioned implementation is tested
Example and the peel strength between the EVA adhesive film in comparative example and polyvinyl fluoride composite membrane, test result are shown in Table 2.
Table 2
The beneficial effects of the present invention are: the light transmittance of the EVA adhesive film in above-described embodiment is in 92-95%, with comparative example
The light transmittance 88-89% of EVA adhesive film compare, achieve the technical effect for significantly improving the light transmittance of EVA adhesive film；
The peel strength between EVA adhesive film and glass in above-described embodiment is in 33.3-36.1N/cm, with comparative example
EVA adhesive film is achieved and is significantly improved between EVA adhesive film and glass compared with the peel strength 15.5-16.3N/cm between glass
Peel strength technical effect；
Peel strength between the EVA adhesive film prepared in above-described embodiment and polyvinyl fluoride composite membrane is 61.3-
66.2N/cm, with the EVA adhesive film in comparative example compared with the peel strength 29.5-36.4N/cm between polyvinyl fluoride composite membrane,
Achieve the technical effect for significantly improving the peel strength between EVA adhesive film and polyvinyl fluoride composite membrane.
Claims (6)
1. a kind of EVA film adhesive for solar cell package, which is characterized in that the raw material including following parts by weight proportion: EVA tree
100 parts of rouge, 1-4 parts of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, 2-6 parts of benzoyl peroxide, unsaturated silane are even
Join agent 0.5-2 parts, 0.1-0.3 parts of UV absorbers, 0.5-0.8 parts of plasticizer, 1.8-2.5 parts of antioxidant.
2. EVA adhesive film according to claim 1, which is characterized in that the EVA adhesive film includes what following parts by weight matched
Raw material: 100 parts of EVA resin, 2 parts of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, 3 parts of benzoyl peroxide, vinyl
Three 1 part of (beta-methoxy ethyoxyl) silane coupling agents, 0.15 part of 2,4-DihydroxyBenzophenone UV absorbers, phthalic acid
0.6 part of di-n-octyl plasticizer, 2 parts of antioxidant.
3. EVA adhesive film according to claim 1, which is characterized in that the EVA adhesive film includes what following parts by weight matched
Raw material: 100 parts of EVA resin, 3 parts of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, 4 parts of benzoyl peroxide, vinyl
Three 1.5 parts of (beta-methoxy ethyoxyl) silane coupling agents, 0.1 part of ESCALOL 567 UV absorbers, adjacent benzene
0.7 part of dioctyl phthalate butyl benzyl plasticizer, 1.8 parts of antioxidant.
4. EVA adhesive film according to claim 1, which is characterized in that the EVA adhesive film includes what following parts by weight matched
Raw material: 100 parts of EVA resin, 2 parts of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, 5 parts of benzoyl peroxide, vinyl
1.5 parts of trimethoxysilane coupling agent, 0.2 part of 2-hydroxy-4-n-octoxybenzophenone UV absorbers, phthalic acid
0.6 part of di-sec-octyl plasticizer, 2 parts of antioxidant.
5. EVA adhesive film according to claim 1, which is characterized in that the EVA adhesive film includes what following parts by weight matched
Raw material: 100 parts of EVA resin, 3 parts of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, 3 parts of benzoyl peroxide, vinyl
1 part of triethoxysilane coupling agent, single 0.2 part of benzoic acid resorcinol UV absorbers, dicyclohexyl phthalate
0.7 part of plasticizer, 2.5 parts of antioxidant.
6. a kind of preparation method of EVA film adhesive for solar cell package, which comprises the following steps:
S1. the EVA resin particle of 100 mass parts is added in vacuum oven, at 25 DEG C, is dried in vacuo 30-60min,
It takes out spare；
S2. by the benzoyl peroxide of 2,5- dimethyl -2,5 di-t-butyl hexane peroxide of 1-4 mass parts and 2-6 mass parts
It is uniformly mixed, is configured to multiple crosslinking agent；
S3. by the unsaturated silane coupling agents of 0.5-2 mass parts be added by the silane of 2 mass parts, the isopropanol of 7.2 mass parts and
In the diluent of the deionized water composition of 0.8 mass parts, pH value is adjusted to 4-5, is uniformly mixed, is configured to unsaturated coupling
Agent solution；
S4. by the UV absorbers of 0.1-0.3 mass parts, the plasticizer of 0.5-0.8 mass parts, 1.8-2.5 mass parts it is anti-
Multiple crosslinking agent in oxygen agent and step S2 is added to together in the unsaturated coupling agent solution in step S3, is stirred
It is even, it is configured to modified additive solution；
S5. spiral ribbon mixer first is added in the EVA particle in step S1, then the modified additive spray solution in step S4 is arrived
On EVA particle, at room temperature, it is added in mixer after mixing 30-60min, temperature is 150-160 DEG C, rotor speed is
Under 35-50r/min, it is kneaded 10-20min, modified EVA resin particle is prepared in extruding pelletization；
S6. by step S5 modified EVA resin particle be added casting machine in, at 150-160 DEG C, plasticizing squeeze out with a thickness of
The EVA adhesive film of 0.2-0.8mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115926669A (en) * | 2023-02-20 | 2023-04-07 | 苏州易昇光学材料股份有限公司 | Light EVA (ethylene-vinyl acetate) adhesive film for packaging solar cell |
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|---|---|---|---|---|
| CN107216830A (en) * | 2017-07-10 | 2017-09-29 | 荆楚理工学院 | A kind of white EVA adhesive film of precuring type and preparation method and application |
| CN107400471A (en) * | 2017-08-11 | 2017-11-28 | 杭州福斯特应用材料股份有限公司 | A kind of sandwich construction photovoltaic component encapsulating glued membrane and preparation method thereof |
| CN108611025A (en) * | 2018-04-10 | 2018-10-02 | 浙江祥邦科技股份有限公司 | A kind of super fast curing solar energy packaging adhesive film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107216830A (en) * | 2017-07-10 | 2017-09-29 | 荆楚理工学院 | A kind of white EVA adhesive film of precuring type and preparation method and application |
| CN107400471A (en) * | 2017-08-11 | 2017-11-28 | 杭州福斯特应用材料股份有限公司 | A kind of sandwich construction photovoltaic component encapsulating glued membrane and preparation method thereof |
| CN108611025A (en) * | 2018-04-10 | 2018-10-02 | 浙江祥邦科技股份有限公司 | A kind of super fast curing solar energy packaging adhesive film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115926669A (en) * | 2023-02-20 | 2023-04-07 | 苏州易昇光学材料股份有限公司 | Light EVA (ethylene-vinyl acetate) adhesive film for packaging solar cell |
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Application publication date: 20190517 |