CN108997699A - The preparation method of black EVA material for solar cell module encapsulation - Google Patents
The preparation method of black EVA material for solar cell module encapsulation Download PDFInfo
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- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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Abstract
The invention belongs to solar energy encapsulating material technical field, the preparation method of especially a kind of black EVA material for solar cell module encapsulation；(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black, its mass ratio is 0.01-0.02:1, resin is added in dispersion machine, then fumed silica is slowly added in resin system, revolving speed is adjusted to turn for 100-300, disperse 5-10min, after the equal fully wrapped around fumed silica of resins, it is slowly added into carbon black, revolving speed is adjusted between 100-300, disperse 5-10min, after the equal fully wrapped around carbon black of resins, revolving speed is adjusted to turn for 1500-4500, linear velocity is 15m/s-20 m/s, disperse 30-60min；(2) preparation of black EVA material；Insulate black stock made from preparation method using the black stock that insulate in the present invention, and the volume resistivity of black EVA material obtained is higher, and storage is more convenient.
Description
Technical field
It is especially a kind of for the black of solar cell module encapsulation the invention belongs to solar energy encapsulating material technical field
The preparation method of color EVA material.
Background technique
Solar energy is a kind of clear energy sources, is nearly free from any pollution when developing and utilizing, its reserves is close in addition
It is the alternative energy source of ideals of human being like unlimitedness.In order to make effective use of solar energy, people have invented a variety of solar energy materials
Material.By can generally be divided into photoelectric conversion material, optical-thermal conversion material, photochemical energy transition material and luminous energy in performance and purposes
Regulate and control off-color material.It in people's daily life and production process is exactly most widely at present photoelectricity and optical-thermal conversion material.
Solar energy photoelectric conversion material, that is, solar battery is based on semiconductor material, using photovoltaic effect sun spoke
Electric energy can be converted by penetrating.The structure of solar cell module can be generally divided into 5 layers, respectively glass, macromolecule from top to bottom
Packaging plastic, semi-conductor cell piece, polymer encapsulation glue and macromolecule backing.In outdoor harsh climate environment, macromolecule envelope
Filling glue can be cracked in aging yellowing or even degumming quickly, corrode battery component rupture by weather, and then make the light of battery component
Photoelectric transformation efficiency is greatly reduced either Damage by Short Circuit and fails.Therefore, in order to improve service efficiency and the longevity of solar battery
Life, the polymer encapsulation glue material of solar cell module are that solar energy utilizes very important component.By the length of people
The practice and research of phase, ethene-vinyl acetate resin copolymer (EVA) become the first choice of solar cell module encapsulating material.
Have many advantages, such as that high light transmittance, adhesive strength are strong, insulating properties is high and thermal stability is good with the solar cell module that EVA is encapsulated.
But it is increasingly extensive with solar cell module purposes, solar cell module is used to build the multiplicity of demand color
Property and solar double-glass assemblies proposition, ordinary white translucent EVA film encapsulation too can component can no longer meet the needs in market.
Summary of the invention
The purpose of the present invention is: overcome insufficient in the prior art, a kind of volume resistivity is provided and the degree of cross linking is superior
The preparation method of black EVA material for solar cell module encapsulation.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of preparation method of the black EVA material for solar cell module encapsulation, the preparation method includes following step
It is rapid:
(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black,
Its mass ratio is 0.01-0.02:1, and resin is added in dispersion machine, fumed silica is then slowly added to resin system
It is interior, it adjusts revolving speed and turns for 100-300, dispersion 5-10min is slowly added into carbon black after waiting the fully wrapped around fumed silica of resins,
Revolving speed is adjusted between 100-300, disperses 5-10min, after waiting the fully wrapped around carbon black of resins, revolving speed is adjusted and turns for 1500-4500,
Linear velocity is 15m/s-20 m/s, disperses 30-60min；
(2) preparation of black EVA material: in parts by weight, modified EVA 92-96 parts, polyolefin elastomer 12-28 is added
Part, 1.2-4.5 parts of crosslinking agent, 0.8-2.4 parts of silane coupling agent, 0.12-0.36 parts of antioxidant, UV absorbers 0.12-
It 0.25 part, is uniformly mixed, carries out melting compound encapsulating to get described for solar cell module under the conditions of 80~130 DEG C
Black EVA material.
Further, mixture of the insulation black stock using fumed silica and the carbon black that insulate, quality
Than for 0.015:1.
Further, the modified EVA is using one or both of modified by maleic acid anhydride graft EVA, SIS modified EVA
Mixture.
Further, the modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, matter
Amount is than being 1:1-5.
Further, the crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and wherein crosslinking and curing agent includes organic mistake
Oxide and azo-compound, wherein organic peroxide includes: dicumyl peroxide, di-tert-butyl peroxide, peroxidating
Hydrogen diisopropylbenzene (DIPB), -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, (t-amyl peroxy) valeric acid of 4,4- bis- n-butyl, mistake
One or more of the oxidation -2- ethylhexyl carbonate tert-butyl ester, 3,3- bis- (t-butyl peroxy) ethyl butyrate；The azo
Close object use aromatic azo compound, the assistant crosslinking agent include Triallyl isocyanurate, triallyl cyanurate,
Benzene divinyl, trimethylol-propane trimethacrylate, diethyleneglycol dimethacrylate, diallyl phthalate
One of.
Further, the organic peroxide selects 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -
The mixture of the 2- ethylhexyl carbonate tert-butyl ester, mass ratio 1:1-3.
Further, the silane coupling agent is three tert-butyl peroxide silane of vinyl and three ('beta '-methoxy of vinyl
Ethyoxyl) silane mixture, mass ratio 1:1-2.4.
Further, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, β-
One of (3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester.
Further, the UV absorbers are selected from: poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines)
Succinate, it is poly- [6- [(1,1,3,3- tetramethyl butyl) amino]] -1,3,5- triazine -2,4- [(2,2,6,6,-tetramethyl -
Piperidyl) imino group] -1,6- oneself two support [(2,2,6,6- tetramethyl -4- piperidyl) imino group], 2-(2 '-hydroxyl -5 '-first
Base phenyl) benzotriazole, one or both of 2-hydroxy-4-n-octoxybenzophenone.
Further, the UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) fourth
The mixture of two acid esters and 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.2-0.8:1.
It is using the beneficial effect of technical solution of the present invention:
1, the thermal conductivity in the present invention is more excellent, and black EVA material is due to joined carbon black, in lamination heat curing process
In, the temperature difference of monolith film is small, make its crosslinking more completely and material distribution it is more uniform, due to joined gas phase in carbon black
Silica, fumed silica partial size very little, therefore large specific surface area, superficial attractive forces are strong, and surface can be big, chemical purity
It is high, dispersion performance is good, thermal resistance, resistance etc. have special performance, have superior stability, reinforcing, thickening property and
Thixotropy, to further improve the distributing homogeneity of material.
2, the volume resistivity in the present invention is high, it is well known that another insulating properties substance is filled in a kind of medium
When, the anti-electrical breakdown capability of this medium can be effectively improved, i.e. volume resistivity substantially increases.
3, the black EVA storage in the present invention is more convenient, and black EVA is due to its opaqueness, in coiled storage,
Only outer layer need to accordingly be protected, certain auxiliary agent decomposition will not occur because of illumination for the film of inner layer causes to go bad.
4, insulate black stock made from the preparation method using the black stock that insulate in the present invention, black obtained
The volume resistivity of EVA material is higher, and storage is more convenient.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but these embodiments are not
Limiting the scope of the invention." one embodiment " or " embodiment " referred to herein, which refers to, may be included in the present invention at least
A particular feature, structure, or characteristic in one implementation.In the present specification different places occur " in one embodiment
In " the same embodiment not is referred both to, nor the individual or selective embodiment mutually exclusive with other embodiments.
Embodiment 1
A kind of preparation method of the black EVA material for solar cell module encapsulation, comprising the following steps:
(1) preparation of insulation carbon composition: insulation carbon composition includes the mixture of fumed silica and carbon black, matter
Resin is added in dispersion machine, then fumed silica is slowly added in resin system, adjusts and turns than being 0.01:1 for amount
Speed is 100 turns, disperses 10min, after waiting the fully wrapped around fumed silica of resins, is slowly added into carbon black, adjust revolving speed be 100 it
Between, disperse 10min, after waiting the fully wrapped around carbon black of resins, adjusting revolving speed is 1500 turns, linear velocity 15m/s, disperses 60min；
(2) preparation of black EVA material: in parts by weight, 92 parts of modified EVA, 12 parts of polyolefin elastomer, crosslinking is added
1.2 parts of agent, 0.8 part of silane coupling agent, 0.12 part of antioxidant, 0.12 part of UV absorbers are uniformly mixed, at 80~130 DEG C
Under the conditions of melt it is compound to get the black EVA material for solar cell module encapsulation.
Wherein, mixture of the insulation black stock using fumed silica and the carbon black that insulate, mass ratio 0.01:
1。
Wherein, modified EVA uses modified by maleic acid anhydride graft EVA.
Wherein, crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and crosslinking and curing agent includes organic peroxide and azo
Compound, organic peroxide select 4,4- bis- (t-amyl peroxy) valeric acid n-butyl, and azo-compound is even using aromatic series
Nitrogen compound, assistant crosslinking agent include trimethylol-propane trimethacrylate.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:1.2.
Wherein, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
Wherein, UV absorbers are selected from: poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate.
Embodiment 2
A kind of preparation method of the black EVA material for solar cell module encapsulation, comprising the following steps:
(1) preparation of insulation carbon composition: insulation carbon composition includes the mixture of fumed silica and carbon black, matter
Resin is added in dispersion machine, then fumed silica is slowly added in resin system, adjusts and turns than being 0.01:1 for amount
Speed is 100 turns, disperses 10min, after waiting the fully wrapped around fumed silica of resins, is slowly added into carbon black, adjust revolving speed be 100 it
Between, disperse 10min, after waiting the fully wrapped around carbon black of resins, adjusting revolving speed is 1500 turns, linear velocity 15m/s, disperses 60min；
(2) preparation of black EVA material: in parts by weight, modified EVA 92-96 parts, polyolefin elastomer 12-28 is added
Part, 1.2-4.5 parts of crosslinking agent, 0.8-2.4 parts of silane coupling agent, 0.12-0.36 parts of antioxidant, UV absorbers 0.12-
It 0.25 part, is uniformly mixed, carries out melting compound encapsulating to get described for solar cell module under the conditions of 80~130 DEG C
Black EVA material.
Wherein, insulation black stock uses the mixture of fumed silica and the carbon black that insulate, and mass ratio is
0.012:1。
Wherein, modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:
1。
Wherein, crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and crosslinking and curing agent includes organic peroxide and azo
Compound, organic peroxide select 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -2- ethylhexyl carbonate
The mixture of the tert-butyl ester, mass ratio 1:1, azo-compound use aromatic azo compound, and assistant crosslinking agent includes diformazan
Base acrylic acid binaryglycol ester.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:1.
Wherein, antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester.
Wherein, UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate and
The mixture of 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.3:1.
Embodiment 3
A kind of preparation method of the black EVA material for solar cell module encapsulation, comprising the following steps:
(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black,
Its mass ratio is 0.05:1, and resin is added in dispersion machine, then fumed silica is slowly added in resin system, is adjusted
Saving revolving speed is 200 turns, disperses 8min, after waiting the fully wrapped around fumed silica of resins, is slowly added into carbon black, adjusts revolving speed and is
Between 800, disperse 8min, after waiting the fully wrapped around carbon black of resins, adjusting revolving speed is 3000 turns, and linear velocity is 18 m/s, dispersion
45min；
(2) preparation of black EVA material: in parts by weight, 94 parts of modified EVA, 15 parts of polyolefin elastomer, crosslinking is added
2.4 parts of agent, 1.2 parts of silane coupling agent, 0.15 part of antioxidant, 0.15 part of UV absorbers.
Wherein, insulation black stock uses the mixture of fumed silica and the carbon black that insulate, and mass ratio is
0.013:1。
Wherein, modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:
3。
Wherein, crosslinking agent use crosslinking and curing agent and assistant crosslinking agent, wherein crosslinking and curing agent include organic peroxide and
Azo-compound, organic peroxide select 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -2- ethylhexyl
The mixture of t-butyl carbonate, mass ratio 1:2；Azo-compound uses aromatic azo compound, and assistant crosslinking agent includes
Triallyl isocyanurate.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:1.2.
Wherein, antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
Wherein, UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate and
The mixture of 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.4:1.
Embodiment 4
A kind of preparation method of the black EVA material for solar cell module encapsulation, comprising the following steps:
(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black,
Its mass ratio is 0.05:1, and resin is added in dispersion machine, then fumed silica is slowly added in resin system, is adjusted
Saving revolving speed is 200 turns, disperses 8min, after waiting the fully wrapped around fumed silica of resins, is slowly added into carbon black, adjusts revolving speed and is
Between 800, disperse 8min, after waiting the fully wrapped around carbon black of resins, adjusting revolving speed is 3000 turns, and linear velocity is 18 m/s, dispersion
45min；
(2) preparation of black EVA material: in parts by weight, 94 parts of modified EVA, 17 parts of polyolefin elastomer, crosslinking is added
2.8 parts of agent, 1.6 parts of silane coupling agent, 0.25 part of antioxidant, 0.15 part of UV absorbers.
Wherein, insulation black stock uses the mixture of fumed silica and the carbon black that insulate, and mass ratio is
0.015:1。
Wherein, modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:
3.5。
Wherein, crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and crosslinking and curing agent includes organic peroxide and azo
Compound, organic peroxide select 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -2- ethylhexyl carbonate
The mixture of the tert-butyl ester, mass ratio 1:2.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:2.
Wherein, antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester.
Wherein, UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate and
The mixture of 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.5:1.
Embodiment 5
A kind of preparation method of the black EVA material for solar cell module encapsulation, comprising the following steps:
(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black,
Its mass ratio is 0.02:1, and resin is added in dispersion machine, then fumed silica is slowly added in resin system, is adjusted
Saving revolving speed is 300 turns, disperses 10min, after waiting the fully wrapped around fumed silica of resins, is slowly added into carbon black, adjusts revolving speed and is
Between 300, disperse 10min, after waiting the fully wrapped around carbon black of resins, adjusting revolving speed is 4500 turns, and linear velocity is 20 m/s, dispersion
30min；
(2) preparation of black EVA material: in parts by weight, 95 parts of modified EVA, 24 parts of polyolefin elastomer, crosslinking is added
4 parts of agent, 2 parts of silane coupling agent, 0.28 part of antioxidant, 0.2 part of UV absorbers.
Wherein, insulation black stock uses the mixture of fumed silica and the carbon black that insulate, and mass ratio is
0.018:1。
Wherein, modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:
4。
Wherein, crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and crosslinking and curing agent includes organic peroxide and azo
Compound, organic peroxide select 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -2- ethylhexyl carbonate
The mixture of the tert-butyl ester, mass ratio 1:2.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:2.1.
Wherein, UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate and
The mixture of 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.6:1.
Embodiment 6
A kind of black EVA material for solar cell module encapsulation, mass parts composition are as follows: insulation black stock
4.5 parts, 96 parts of modified EVA, 28 parts of polyolefin elastomer, 4.5 parts of crosslinking agent, 2.4 parts of silane coupling agent, antioxidant 0.36
Part, 0.25 part of UV absorbers.
Wherein, mixture of the insulation black stock using fumed silica and the carbon black that insulate, mass ratio 0.02:
1。
Wherein, modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:
5。
Wherein, crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and crosslinking and curing agent includes organic peroxide and azo
Compound, organic peroxide select 2,5- dimethyl -2,5 di-t-butyl hexane peroxide, peroxidating -2- ethylhexyl carbonate
The mixture of the tert-butyl ester, mass ratio 1:3.
Wherein, silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silicon
The mixture of alkane, mass ratio 1:2.4.
Wherein, UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidines) succinate and
The mixture of 2-hydroxy-4-n-octoxybenzophenone, mass ratio 0.8:1.
Performance test: 1. volume resistivities test
By the volume resistivity of GB ﹨ T1410-2006 ﹨ IEC60093:1980 test EVA packaging adhesive film.
Test method: being cut into three pieces of 20cm × 20cm glue film for EVA adhesive film, and sample is made on laminating machine, uses volume
Resistivity tester tests its volume resistivity.The mass parts of control group form: removal black stock, remaining is the same as embodiment 3.
The performance test results see the table below
| EVA adhesive film | Volume resistivity (Ω cm) |
| Embodiment 1 | 4.6×1015 |
| Embodiment 2 | 3.9×1015 |
| Embodiment 3 | 4.9×1015 |
| Embodiment 4 | 4.8×1015 |
| Embodiment 5 | 4.3×1015 |
| Embodiment 6 | 4.4×1015 |
| Comparative example | 2.6×1015 |
Those of ordinary skill in fields it should be appreciated that, the thermal conductivity in the present invention is more excellent, black EVA
Material due to joined carbon black, lamination heat curing process in, the temperature difference of monolith film is small, make its crosslinking more completely and
Material distribution is more uniform, due to joined fumed silica, fumed silica partial size very little, therefore specific surface in carbon black
Product is big, and superficial attractive forces are strong, and surface can be big, and chemical purity is high, dispersion performance is good, thermal resistance, resistance etc. have special property
Can, there is superior stability, reinforcing, thickening property and thixotropy, to further improve the distributing homogeneity of material；
Volume resistivity in the present invention is high, it is well known that when filling another insulating properties substance in a kind of medium, can have
Effect improves the anti-electrical breakdown capability of this medium, i.e. volume resistivity substantially increases；
Black EVA storage in the present invention is more convenient, and black EVA is due to its opaqueness, in coiled storage, need pair
Outer layer is accordingly protected, and certain auxiliary agent decomposition will not occur because of illumination for the film of inner layer causes to go bad.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.It is all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.This
The technical scope of item invention is not limited to the contents of the specification, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (10)
1. a kind of preparation method of the black EVA material for solar cell module encapsulation, it is characterised in that: the preparation
Method the following steps are included:
(1) preparation of insulation carbon composition: the insulation carbon composition includes the mixture of fumed silica and carbon black,
Its mass ratio is 0.01-0.02:1, and resin is added in dispersion machine, fumed silica is then slowly added to resin system
It is interior, it adjusts revolving speed and turns for 100-300, dispersion 5-10min is slowly added into carbon black after waiting the fully wrapped around fumed silica of resins,
Revolving speed is adjusted between 100-300, disperses 5-10min, after waiting the fully wrapped around carbon black of resins, revolving speed is adjusted and turns for 1500-4500,
Linear velocity is 15m/s-20 m/s, disperses 30-60min；
(2) preparation of black EVA material: in parts by weight, modified EVA 92-96 parts, polyolefin elastomer 12-28 is added
Part, 1.2-4.5 parts of crosslinking agent, 0.8-2.4 parts of silane coupling agent, 0.12-0.36 parts of antioxidant, UV absorbers 0.12-
It 0.25 part, is uniformly mixed, carries out melting compound encapsulating to get described for solar cell module under the conditions of 80~130 DEG C
Black EVA material.
2. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
It is: mixture of the insulation black stock using fumed silica and the carbon black that insulate, mass ratio 0.015:1.
3. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
Be: the modified EVA uses the mixture of one or both of modified by maleic acid anhydride graft EVA, SIS modified EVA.
4. the preparation method of the black EVA material according to claim 3 for solar cell module encapsulation, feature
Be: the modified EVA uses the mixture of modified by maleic acid anhydride graft EVA and SIS modified EVA, mass ratio 1:1-5.
5. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
Be: the crosslinking agent uses crosslinking and curing agent and assistant crosslinking agent, and wherein crosslinking and curing agent includes organic peroxide and azo
Compound, wherein organic peroxide includes: dicumyl peroxide, di-tert-butyl peroxide, di-isopropylbenzene hydroperoxide, 2,
- 2,5 di-t-butyl hexane peroxide of 5- dimethyl, (t-amyl peroxy) valeric acid of 4,4- bis- n-butyl, peroxidating -2- ethyl hexyl
One or more of base t-butyl carbonate, 3,3- bis- (t-butyl peroxy) ethyl butyrate；The azo-compound is using fragrance
Race's azo-compound, the assistant crosslinking agent include Triallyl isocyanurate, triallyl cyanurate, benzene divinyl, three
One of methylolpropane trimethacrylate, diethyleneglycol dimethacrylate, diallyl phthalate.
6. according to the preparation method for the black EVA material for solar cell module encapsulation that claim 5 is stated, feature exists
In: the organic peroxide selects -2,5 di-t-butyl hexane peroxide of 2,5- dimethyl, peroxidating -2- ethylhexyl carbonate
The mixture of the tert-butyl ester, mass ratio 1:1-3.
7. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
Be: the silane coupling agent is three tert-butyl peroxide silane of vinyl and vinyl three ('beta '-methoxy ethyoxyl) silane
Mixture, mass ratio 1:1-2.4.
8. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
Be: the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, β-(3,5- bis- tertiary fourths
One of base -4- hydroxy phenyl) propionic acid n-octadecyl alcohol ester.
9. the preparation method of the black EVA material according to claim 1 for solar cell module encapsulation, feature
Be: the UV absorbers are selected from: poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidine) succinate, it is poly-
[6- [(1,1,3,3- tetramethyl butyl) amino]] -1,3,5- triazine -2,4- [(2,2,6,6,-tetramethyl-4-piperidyl) imido
Base] -1,6- oneself two support [(2,2,6,6- tetramethyl -4- piperidyl) imino group], 2-(2 '-hydroxyl -5 '-aminomethyl phenyl) benzo
One or both of triazole, 2-hydroxy-4-n-octoxybenzophenone.
10. the preparation method of the black EVA material according to claim 9 for solar cell module encapsulation, special
Sign is: the UV absorbers select poly- (1- ethoxy -2,2,6,6- tetramethyl -4- hydroxy piperidine) succinate and 2-
The mixture of hydroxyl -4- oxy-octyl benzophenone, mass ratio 0.2-0.8:1.
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Application publication date: 20181214 |