CN109087962A - A kind of encapsulation foreboard and its preparation process - Google Patents
A kind of encapsulation foreboard and its preparation process Download PDFInfo
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- CN109087962A CN109087962A CN201811118206.9A CN201811118206A CN109087962A CN 109087962 A CN109087962 A CN 109087962A CN 201811118206 A CN201811118206 A CN 201811118206A CN 109087962 A CN109087962 A CN 109087962A
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- 238000005538 encapsulation Methods 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 239000010410 layer Substances 0.000 claims abstract description 130
- 238000000576 coating method Methods 0.000 claims abstract description 86
- 239000011248 coating agent Substances 0.000 claims abstract description 83
- 239000012790 adhesive layer Substances 0.000 claims abstract description 53
- 239000002131 composite material Substances 0.000 claims abstract description 52
- 239000012528 membrane Substances 0.000 claims abstract description 49
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 238000000926 separation method Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000032683 aging Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000002834 transmittance Methods 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 229920000620 organic polymer Polymers 0.000 claims description 9
- 230000003712 anti-aging effect Effects 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000007761 roller coating Methods 0.000 claims description 7
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 claims 2
- 239000004576 sand Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 230000003666 anti-fingerprint Effects 0.000 abstract description 3
- 238000012536 packaging technology Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 114
- 239000000243 solution Substances 0.000 description 18
- 210000004027 cell Anatomy 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000012766 organic filler Substances 0.000 description 6
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 description 5
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 239000011737 fluorine Substances 0.000 description 5
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 5
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 5
- 239000004926 polymethyl methacrylate Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 description 5
- 230000003678 scratch resistant effect Effects 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
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- 238000004140 cleaning Methods 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- UGFMBZYKVQSQFX-UHFFFAOYSA-N para-methoxy-n-methylamphetamine Chemical group CNC(C)CC1=CC=C(OC)C=C1 UGFMBZYKVQSQFX-UHFFFAOYSA-N 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
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- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 2
- BHKKSKOHRFHHIN-MRVPVSSYSA-N 1-[[2-[(1R)-1-aminoethyl]-4-chlorophenyl]methyl]-2-sulfanylidene-5H-pyrrolo[3,2-d]pyrimidin-4-one Chemical compound N[C@H](C)C1=C(CN2C(NC(C3=C2C=CN3)=O)=S)C=CC(=C1)Cl BHKKSKOHRFHHIN-MRVPVSSYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 poly- ammonia Ester Chemical class 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of encapsulation foreboard and its preparation process, the encapsulation foreboard is the composite membrane for being fitted in solar cell module upper surface, it is characterized in that, the composite membrane from top to bottom, including anti-stick coating, frosted aging-resistant layer, the first film substrate layer, the first adhesive layer, aqueous vapor separation layer.Encapsulation foreboard of the invention can satisfy the lower water vapor transmittance of mobile energy class and lower service life requires the requirement of (less than 5 years), while this flexible front plate surface anti-fingerprint damage resistant, packaging technology are succinctly efficient, and material and process costs are lower；This encapsulation foreboard quality is lighter, thinner, more soft compared to traditional foreboard, and material cost is lower, simple process.
Description
Technical field
The present invention relates to a kind of solar cell package components, relate more specifically to a kind of applied to flexible mobile solar energy
The encapsulation foreboard and its preparation process of field of batteries.
Background technique
Currently, encapsulation quality has important role to the service life of battery in solar cell module.Solar-electricity
Penetrating into battery component mainly as isolation air, steam for the foreboard enclosed construction of pond component, plays protection solar-electricity
The effect in pond.Encapsulating material generally uses the adhesive film based on PVB, EVA, and effect is fixed cell piece, and completely cuts off air
And water vapour, to have longer service life after guaranteeing cell package.And PVB and EVA material are closed comprehensive in solar battery
The place of aspect of performance all Shortcomings is closed, block-water performance is not good enough, by after a certain period of time, steam can be along battery component side
Edge enters component internal；It is not high enough with the adhesion strength of metal simultaneously, cause solar battery group using after a certain period of time,
Electrode is separated with glue film, loses the effect of encapsulation.
The deficiency of the closed performance of plate material, patent CN102738283A are disclosed before encapsulating for conventional solar cell
A kind of foreboard encapsulating structure of solar components, wherein encapsulation front board structure just includes having used one layer in the first EVA film
ETFE fluoroplastics film, the structure can be improved durability and heat-proof quality.Flexible thin-film solar cell is as solar cell
One new varieties, it is technologically advanced, function admirable, widely used, increasingly it is valued by people.Partially flexible encapsulation foreboard is adopted
With fluorine film material, resistance to ag(e)ing is higher, and outdoor service life was up to 25 years or more, but fluorine film is expensive, and using tradition
Packaging adhesive film seals complex process, and yields is lower, not only thick but also hard after product encapsulation, and heavier-weight, and it is mobile to be unsatisfactory for the consumer goods
The light-weighted requirement of energy class.
Summary of the invention
For problem of the existing technology before, the present invention provides the bloom kinds for solving described problem to encapsulate foreboard
Structure and preparation method.The present invention develops plate material before a encapsulation, and discloses its preparation process, can be using the present invention
Solar cell package foreboard, can satisfy mobile energy class anti-fingerprint damage resistant, lower water vapor transmittance and lower use
The time limit requires requirement less than 5 years, while this foreboard quality is lighter, thinner, more soft compared to traditional foreboard, and material at
This lower, simple process really meets power generation paper lightweight and the requirement of softness.
The first aspect of the invention, provides a kind of encapsulation foreboard, and the encapsulation foreboard is to be fitted in solar battery group
The composite membrane of part upper surface, which is characterized in that the composite membrane from top to bottom, including anti-stick coating, frosted aging-resistant layer, first
Film substrate layer, the first adhesive layer, aqueous vapor separation layer.
Terminology used in the present invention " encapsulation foreboard ", refers to that photovoltaic chip upper surface plays the material of packaging protection.This
Encapsulation foreboard in invention, the actually one layer composite membrane for being covered on battery component upper surface, the film have multilayered structure, by
The identical or different material layer composition of several property, composition, each material layer can be by the structure type of coating, film, can
To be combined with each other, form encapsulation foreboard of the invention by process means such as deposition, plated film, laminations.It commonly uses in the prior art
Encapsulation before plate material be the polymer such as PVB polyvinyl butyral resin and EVA ethylene-vinyl acetate copolymer.
The composition of the encapsulation foreboard of the prior art is relatively simple, is exactly substantially one or two layers PVB, EVA, PET or ETFE
Film is covered on battery component upper surface, and Compound Degree is not high, function than relatively limited, be unable to satisfy encapsulation foreboard blocking water vapor,
The balance of comprehensive performance between the performances such as translucency, chemical stability；And the preparation work of encapsulation foreboard film in the prior art
Skill is complicated, and the requirement to equipment is high, and film composition material is at high cost.Meanwhile in prior art, partially flexible encapsulation foreboard is adopted
Be laminated with fluorine film material with packaging adhesive film, although fluorine film resistance to ag(e)ing is higher, outdoor service life up to 25 years or more,
But fluorine film is expensive, and seals complex process using conventional package glue film, and yields is lower, not only thick but also hard after product encapsulation, and
Heavier-weight is unsatisfactory for the mobile light-weighted requirement of energy class of the consumer goods.
Mobile solar cell package foreboard provided by the invention, the composite of performance index shown are as follows: thickness
0.1-0.4mm is adjustable, 90% or more light transmittance, water vapor transmittance 10-2g/m2day10-6g/m2Day is adjustable, surface hardness 2H-3H
It is adjustable, tensile strength 170MPa or more, 140% or more elongation at break.Encapsulation foreboard of the invention, it is water preventing ability, translucency, resistance to
The performance of Hou Xing, insulating properties, wearability etc. also gets a promotion compared with prior art.
Encapsulation foreboard composite membrane of the invention, has abandoned at high cost, complex process fluorine-contained film, using organic and/or
The compound tunic of inorganic material composition, meets the encapsulation standard of high light transmission mobile battery plate.
In further preferred scheme, the aqueous vapor separation layer lower surface further includes one layer of modified primary coat coating, can be with
Improve the weatherability of encapsulation foreboard.
In further preferred scheme, the modified primary coat coating lower surface further includes the second film substrate layer.Into
In the preferred scheme of one step, the second film substrate layer lower surface further includes the second adhesive layer, and light transmittance can be enhanced.
In further preferred scheme, second adhesive layer lower surface further includes one layer of PE protective film.Into one
It walks in preferred scheme, the anti-stick coating, with a thickness of 1-10um.
In further preferred scheme, the frosted aging-resistant layer, with a thickness of 1-10um.
In further preferred scheme, abrasive particle is contained in the frosted aging-resistant layer, the abrasive particle is to have
The combination of machine particle, inorganic particulate or both.
In further preferred scheme, the organic filler is PMMA, PBMA, PDMS, and the inorganic particulate is SiO2、
Al2O3、ZrO2。
In further preferred scheme, the first film substrate layer, with a thickness of 50-200um.
In further preferred scheme, the first film substrate layer be high light transmission PET film, light transmittance 90% with
On.
In further preferred scheme, first, second adhesive layer, 90% or more light transmittance, with a thickness of 5-
30um。
In further preferred scheme, the aqueous vapor separation layer, with a thickness of 1-30um.
In further preferred scheme, the modified primary coat coating may be selected to be acrylic acid, gather with a thickness of 1-15um
Urethane or polyester type coating.
In further preferred scheme, the second film substrate layer is PET, PEN or PBT film of high light transmission, thoroughly
90% or more light rate, with a thickness of 50-200um.
The present invention furthermore provides a kind of preparation process for encapsulating foreboard, which is characterized in that comprises the following steps:
Step 1: abrasive particle, antiaging agent being uniformly mixed with organic polymer solution, in the first film substrate layer
Upper surface forms the dry film of continuous frosted aging-resistant layer by processing；
Step 2: the composite membrane prepared using step 1 prepares the dry film of anti-stick coating in the upper surface of above-mentioned dry film；
Step 3: the fluid of the first adhesive layer of preparation, the composite membrane prepared using above-mentioned steps 2, in the first film substrate
Layer lower surface is applied using line, blade coating or roll coating model handle above-mentioned fluid, obtains the wet film of the first adhesive layer, and 50-100 DEG C,
The dry film of the first adhesive layer, thickness 5-30um are obtained after 1-5min is dry；
Step 4: the lower surface of the composite membrane prepared using step 3, first adhesive layer uses atomic layer deposition work
Skill or magnetron sputtering technique prepare aqueous vapor separation layer.
Further include following steps in further preferred scheme: the aqueous vapor separation layer lower surface is coated with modified primary coat
The wet film of coating forms the dry film of modified primary coat coating after 70-90 DEG C of drying of high temperature.
Further include following steps in further preferred scheme: the dry film lower surface of the modified primary coat coating is compound
Second film substrate layer.
As interchangeable, the present invention also provides the preparation processes of another encapsulation foreboard, which is characterized in that further include as
Lower step:
Step 1: abrasive particle, antiaging agent being uniformly mixed with organic polymer solution, in the first film substrate layer
Upper surface forms the dry film of continuous frosted aging-resistant layer by processing；
Step 2: the composite membrane prepared using step 1 prepares the dry film of anti-stick coating in the upper surface of above-mentioned dry film；
Step 3: the fluid of the first adhesive layer of preparation, the composite membrane prepared using above-mentioned steps 2, in the first film substrate
Layer lower surface is applied using line, blade coating or roll coating model handle above-mentioned fluid, obtains the wet film of the first adhesive layer, and 50-100 DEG C,
The dry film of the first adhesive layer is obtained after 1-5min is dry；
Step 4: providing the second film substrate layer, surface is coated with the wet film of modified primary coat coating on it, through high temperature 70-90
The dry film of modified primary coat coating is formed after DEG C dry；Then, atomic layer deposition is used in the upper surface of the modified primary coat coating
Technique or magnetron sputtering technique prepare aqueous vapor separation layer；Then the composite membrane successively prepared above-mentioned steps is prepared with step 3
Composite membrane distinguishes laminated combination, and winding is spare after pressurization bonding is compound, wherein the aqueous vapor separation layer and the first adhesive layer phase
Bonding.
In further preferred scheme, in the lower surface of the second film substrate layer using spray, blade coating or roller coating
Etc. modes prepare the wet film of the second adhesive layer, 50-100 DEG C, obtain the second adhesive layer, thickness 5- after 1-5min is dry
30um。
Further include following steps in further preferred scheme: in second adhesive layer lower surface, compound PE is protected
Cuticula, winding.
In further preferred scheme, in the step 1, the processing specific steps of frosted aging-resistant layer dry film are formed
Are as follows: frosted coating wet film is prepared by blade coating or roller coating coating method in the upper surface of film substrate layer, the wet film is in 50-
The dry film of continuous frosted aging-resistant layer is formed by curing at a temperature of 100 DEG C after UV irradiates 10-50S.
In further preferred scheme, in the step 1, contain abrasive particle in the frosted aging-resistant layer, it is described
Abrasive particle is the combination of organic filler, inorganic particulate or both；Preferably, the organic filler be PMMA, PBMA, PDMS,
The inorganic particulate is SiO2、Al2O3、ZrO2.It is furthermore preferred that the organic polymer solution is often propylene in the step 1
One or both of acids, polyurethane material.
In further preferred scheme, the modified primary coat coating can be the coatings such as acrylic acid, polyurethane, polyesters.
In further preferred scheme, in the step 2, the specific preparation step of the dry film of the coating are as follows: in step
The upper surface of dry film described in rapid 2 is coated with silicon oil solution by way of blade coating or line painting, through 140-160 DEG C of high temperature of oven heat high temperature
The dry film of anti-stick coating is prepared after drying 1-5min.
In further preferred scheme, in the step 3, the preparation process packet of the fluid of first adhesive layer
It includes: macromolecule resin, tackifying resin, plasticizer and solvent etc. is added in reaction kettle, 2000 turns/min of high-speed mixer stirring,
It is uniformly mixed, above-mentioned mixed solution is added in coating apparatus reservoir；Preferably, the macromolecule resin can be poly- ammonia
Ester, acrylic material.
A kind of encapsulation foreboard provided by the invention and its preparation process will obtain following better than related skill without limitation
The beneficial effect of art it is one or more:
1. under uv radiation by the wet film material that forms abrasive particle, antiaging agent in compatible polymer solution
The processing of film-forming, so that the ageing-resistant coating of uniform fold frosted on high light transmission film substrate, protection composite membrane lower part
Aqueous vapor separation layer and battery component improve foreboard material wear-resistant, scratch-resistant and ageing-resistant performance；
2. the surface layer of composite membrane forms anti-stick coating using silicon oil solution baking and curing, processing step is simple, and coating is fine and close,
Realize anti-sticking and automatically cleaning；
3. aqueous vapor separation layer can make water vapor transmittance up to 10-5g/m2/ day rank；Introducing high light transmission adhesive layer makes this
Flexible front plate has the characteristic of frivolous softness；
4. having abandoned the traditional method being successively superimposed in order of compound film preparation, the present invention is using first compound several numbers of plies
Film layer, finally recycle high light transmission adhesive layer as bonding transition zone, good each film layer compound before is carried out in order
It is compound；Joined tackifying resin in high light transmission adhesive layer also can improve bonding, compound intensity；
5. the flexible front plate package parts of composite membrane of the present invention composition, close adhesion between each tunic, Compound Degree is high,
Excellent combination property has stable anti-fingerprint damage resistant, lower water vapor transmittance, property, low cost, packaging technology simply high
Effect, the higher advantage of yields meet the mobile energy service life requirement of consumption category.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the encapsulation foreboard composite membrane of one embodiment of the invention.
Fig. 2 is the structural schematic diagram of the encapsulation foreboard composite membrane of one embodiment of the invention.
Fig. 3 is the structural schematic diagram of the encapsulation foreboard composite membrane of one embodiment of the invention.Wherein appended drawing reference are as follows: 1- is anti-
Adhesive coating layer, 2- frosted aging-resistant layer, 3- the first film substrate layer, the first adhesive layer of 4-, the modified primary coat of 5- aqueous vapor separation layer, 6-
Coating, 7- the first film substrate layer, the second adhesive layer of 8-, 9-PE protective film.
Specific embodiment
Hereinafter, will be made more in conjunction with Figure of description and specific embodiment to this technical solution of the present invention and advantage
Add detailed explanation and illustration.It should be understood that is presented in specification, specific embodiment and Figure of description is interior
Hold, just to clearly illustrate this technical solution of the present invention and its advantage, not to this protection scope of the present invention
It is construed as limiting.Those skilled in the art reasonable can be become on the basis of specification disclosure for various
Technical solution after change, without departing from this spirit of the invention, the technical solution after various change is included in this present invention
Protection scope within.
Embodiment 1
The present embodiment encapsulates foreboard, consisting of it is closely covered on the composite membrane of solar cell module upper surface, by
Multilayer film is combined.Wherein, 1 is anti-stick coating, with a thickness of preferred 1-10um, more preferably 3-8um, more preferably
5um is distributed in the upper surface of encapsulation foreboard composite membrane, has anti-sticking, dust-proof, automatic cleaning action；2 be the ageing-resistant painting of frosted
Layer, with a thickness of preferred 1-10um, more preferably 3-8um, more preferably 5um, this layer of concrete composition preferably comprises machine or nothing
The abrasive particle of machine, such as organic filler select PMMA, PBMA, PDMS, and the inorganic particulate is SiO2、Al2O3、ZrO2, more excellent
Selection of land contains antiaging agent, which has wear-resisting, scratch-resistant, ageing-resistant effect；3 be the first film substrate layer, with a thickness of preferably
50-200um, more preferably 80-150um, more preferably 100-120um, the first film substrate is preferably high light transmission
PET film, it is seen that light transmittance be 90% or more, the layer have high light transmission effect；4 be the first adhesive layer, preferably light transmission
95% or more rate, with a thickness of 100-300um, preferably 50-200um, more preferably 80-150um, more preferably 100-
120um, this layer have the property of high light transmission and frivolous softness；5 be aqueous vapor separation layer, with a thickness of 1-30um, more preferably 5-
25um, more preferably 10-20um, more preferably 15um, this layer have the function of obstructing steam.
The encapsulation foreboard composite membrane being arranged according to above structure is as shown in Figure 1.
The preparation process of foreboard is encapsulated as shown in Fig. 1 structure, comprising the following steps:
Step 1: abrasive particle, antiaging agent being mixed with organic polymer solution, 2000 turns/min of high-speed mixer is stirred
It mixes, is uniformly mixed, pass through the common coating sides such as blade coating, roller coating in upper surface of 3 light transmittance of the first film substrate layer greater than 90%
Formula prepares frosted coating wet film, and it is dry that wet film is formed by curing continuous frosted coating after UV irradiates 10-50S at a temperature of 50-100 DEG C
Film, i.e. layer 2 in Fig. 1, wherein abrasive particle can be organic fillers or the SiO such as PMMA, PBMA, PDMS2、Al2O3、ZrO2Deng
Inorganic particulate, organic polymer solution are often one or both of materials such as acrylic compounds, polyurethanes；
Step 2: the composite membrane prepared using step 1 is coated with silicone oil by modes such as blade coating, line paintings in 2 upper surface of film layer
Solution prepares anti-sticking dry film after 140-160 DEG C of high temperature drying 1-5min of oven heat high temperature, i.e. layer 1 in Fig. 1.
Step 3: the fluid of the first adhesive layer of preparation, the composite membrane prepared using above-mentioned steps 2, in the first film substrate
3 lower surface of layer are applied using line, blade coating or roll coating model handle above-mentioned fluid, obtain the wet film of the first adhesive layer 4,50-100
DEG C, the dry film of the first adhesive layer, thickness 5-30um are obtained after 1-5min is dry；Preferably, the stream of first adhesive layer 4
The preparation process of body includes: that macromolecule resin, tackifying resin, plasticizer and solvent etc. are added in reaction kettle, high-speed mixer
2000 turns/min stirring, is uniformly mixed, above-mentioned mixed solution is added in coating apparatus reservoir；Preferably, the high score
Subtree rouge can be polyurethane, acrylic material.
Step 4: the lower surface of the composite membrane prepared using step 3, first adhesive layer 4 uses atomic layer deposition work
Skill or magnetron sputtering technique prepare aqueous vapor separation layer.
The encapsulation foreboard of the present embodiment, including anti-stick coating 1, frosted aging-resistant layer 2, the first film base being combined with each other
Material layer 3, the first adhesive layer 4, aqueous vapor separation layer 5.
By prepare that frosted is ageing-resistant on high light transmission film substrate and anti-stick coating can make foreboard material wear-resistant, it is scratch-resistant,
Automatically cleaning and ageing-resistant；By preparing aqueous vapor separation layer on high light transmission film substrate, make water vapor transmittance up to 10-5g/
m2Day rank；The characteristic for making this flexible front plate that there is frivolous softness by introducing high light transmission adhesive layer.
Embodiment 2
For the comprehensive performance for further increasing encapsulation foreboard, encapsulation foreboard composite membrane of the invention can make following structure and
Process modification.
Preferably, on the basis of embodiment 1 encapsulates foreboard structure of composite membrane, the lower surface of aqueous vapor separation layer 5 compound one
The modified primary coat coating 6 of layer；
It is furthermore preferred that in the compound second film substrate layer 7 in 6 lower surface of layer.
The structural schematic diagram for the encapsulation foreboard that the embodiment obtains is as shown in Figure 2.
Wherein, the middle layer of plate composite membrane before packaging is arranged in aqueous vapor separation layer by present inventive concept person, on the one hand can be kept away
Exempt from the water and gas breaks aqueous vapor separation layer of battery component generation, is on the other hand also avoided that the substances such as EVA and solar battery
Plate contact causes circuit break and short circuit problem；6 be modified primary coat coating, thickness preferred 1-15um, more preferably 3-12um, more excellent
Choosing is 5-8um, which has weatherability effect；7 be the second film substrate layer, and the second film substrate layer is preferably high saturating
PET, PEN or PBT film of light, 90% or more light transmittance, thickness 50-200um, more preferably 80-150um, more preferably
For 100-120um, which has high light transmission effect.
The specific preparation step of the encapsulation foreboard composite membrane of embodiment 2 are as follows:
Selection example 1 encapsulates foreboard composite membrane, including the following steps: in 5 following table of aqueous vapor separation layer further preferably
Face is coated with the wet film of modified primary coat coating 6, and the dry film of modified primary coat coating 6 is formed after 70-90 DEG C of drying of high temperature；
It is furthermore preferred that further including following steps: compound second film substrate in dry film lower surface of the modified primary coat coating 6
Layer 7.
Additionally as a kind of alternative preparation process, the specific preparation process of the encapsulation foreboard composite membrane of embodiment 2, packet
Include following steps:
Step 1: abrasive particle, antiaging agent being mixed with organic polymer solution, 2000 turns/min of high-speed mixer is stirred
It mixes, is uniformly mixed, pass through the common coating sides such as blade coating, roller coating in upper surface of 3 light transmittance of the first film substrate layer greater than 90%
Formula prepares frosted coating wet film, and it is dry that wet film is formed by curing continuous frosted coating after UV irradiates 10-50S at a temperature of 50-100 DEG C
Film, i.e. layer 2 in Fig. 1, wherein abrasive particle can be organic fillers or the SiO such as PMMA, PBMA, PDMS2、Al2O3、ZrO2Deng
Inorganic particulate, organic polymer solution are often one or both of materials such as acrylic compounds, polyurethanes；
Step 2: the composite membrane prepared using step 1 is coated with silicone oil by modes such as blade coating, line paintings in 2 upper surface of film layer
Solution prepares anti-sticking dry film after 140-160 DEG C of high temperature drying 1-5min of oven heat high temperature, i.e. layer 1 in Fig. 1；
Step 3: the composite membrane prepared using above-mentioned steps 2 is used in the lower surface of the first film substrate layer 3 and sprays, scrapes
Painting or roll coating model prepare the wet film of the first adhesive layer 44,50-100 DEG C, obtain the first adhesive 4 after 1-5min is dry；
Step 4: providing the second film substrate layer 7, surface is coated with the wet film of modified primary coat coating 6 on it, through high temperature 70-
The dry film of modified primary coat coating 6 is formed after 90 DEG C of dryings；Then, atomic layer is used in the upper surface of the modified primary coat coating 6
Depositing operation or magnetron sputtering technique prepare aqueous vapor separation layer 5；Then the composite membrane successively prepared above-mentioned steps, with step 3
The composite membrane of preparation distinguishes laminated combination, and winding is spare after pressurization bonding is compound, wherein the aqueous vapor separation layer 5 and the first gluing
Oxidant layer 4 is bonding.
The structural schematic diagram for encapsulating foreboard obtained according to the preparation process of the substitution is also as shown in Figure 2.
The encapsulation foreboard of the present embodiment, including anti-stick coating 1, frosted aging-resistant layer 2, the first film base being combined with each other
Material layer 3, the first adhesive layer 4, aqueous vapor separation layer 5, modified primary coat coating 6, the second film substrate layer 7.
Embodiment 3
To further increase encapsulation, foreboard is weather-proof, high light transmission and performances, the encapsulation foreboard of the invention such as convenient to use are multiple
Following structure and process modification can be made by closing film.
Preferably, on the basis of embodiment 2 encapsulates foreboard structure of composite membrane, the following table of the second film substrate layer 7
Compound second adhesive layer 8 in face.
It is furthermore preferred that in the compound one layer of PE protective film 9 in above-mentioned second adhesive layer, 8 lower surface.
The structural schematic diagram that the embodiment obtains encapsulation foreboard is as shown in Figure 3.
Wherein, 8 be the second adhesive layer, preferred 95% or more light transmittance, thickness 100-300um, the layer play bonding, every
Exhausted effect, when plate encapsulates before packaging, which can closely be bonded in the upper surface of solar panel；9 are
PE protective film, the protective film are easily torn, and play the role of protection packaging foreboard finished composite film, foreboard composite membrane to be packaged need into
When row is packaged in solar cell surface, this layer of protective film is opened.
The flexible solar being arranged by above-mentioned structure of composite membrane encapsulates foreboard, wear-resisting scratch-resistant, water preventing ability, translucency,
The performance of weatherability etc. has apparent improvement.
The specific preparation process of present invention encapsulation foreboard shown in Fig. 3 are as follows:
On the basis of the encapsulation foreboard of 2 structure of embodiment, carry out following steps further preferably: in the second film base
The lower surface of material layer prepares the wet film of the second adhesive layer using modes such as spray, blade coating or roller coating, and 50-100 DEG C, 1-5min is dry
The second adhesive layer, thickness 5-30um are obtained after dry.
It is furthermore preferred that further including following steps: in the compound PE protective film in second adhesive layer lower surface, winding.
The encapsulation foreboard of the present embodiment, including anti-stick coating, frosted aging-resistant layer, the first film substrate being combined with each other
Layer, the first adhesive layer, aqueous vapor separation layer, modified primary coat coating, the second film substrate layer, the second adhesive layer, PE protective film.
The encapsulation foreboard that the present invention is prepared according to above-mentioned preparation process is in use, be specifically applicable to encapsulate flexible shifting
When dynamic solar cell module upper surface, packaging method conventional in the prior art can be used.Such as it can be specifically according to following
Step first prepares the mold to match with packaged solar panel, in one layer of rubber moulding material of mould inner surface spray sintering
Material, solar battery energy solar panel are put into the groove of mold, then will be covered in the template for placing solar panel
Encapsulation foreboard composite membrane provided by the invention (when placement, such as encapsulate foreboard composite membrane and contain PE protective film, can first by composite membrane most
The PE protective film of outer layer is thrown off), it is then placed in laminating machine and is packaged, cooling is carried out after taking-up, is demoulded.
The present invention is applied to the encapsulation foreboard of flexible solar battery, damage resistant, lower water vapor transmittance, low cost, envelope
Dress simple process is efficient, and yields is higher, can satisfy the mobile energy service life requirement of consumption category；Introduce high light transmission gluing
Oxidant layer makes characteristic of this flexible front plate with frivolous softness.
Herein, it should be noted that the description of above-mentioned technical proposal is exemplary, and this specification can be in different forms
It embodies, and should not be construed as limited to technical solution set forth herein.It will be so that the present invention be public on the contrary, providing these explanations
It will be thorough and complete for opening, and range disclosed in this specification will be sufficiently conveyed to those skilled in the art.In addition, this
The technical solution of invention is limited solely by the scope of the following claims.
For describing shape, size disclosed in the various aspects of specification and claims, ratio, angle and number only
It is example, therefore, specification and claims are not limited to shown details.In the following description, when relevant known
It is detailed by omitting when function or the detailed description of configuration are confirmed as unnecessarily obscuring the emphasis of specification and claims
Description.
Using " comprising " described in this specification, " having " and "comprising", unless using " only", it is no
Can also then have another part or other parts, term used usually can be odd number but can also indicate plural form.
It is noted that although this specification be likely to occur and use term " first ", " second ", " top ", " bottom ",
" side ", " other side ", " one end ", " other end " etc. describe a variety of different components, but these ingredients and part do not answer
It is limited by these terms.These terms are only used to distinguish an ingredient and part and another ingredient and part.For example, not
In the case where the range for being detached from this specification, the first component can be referred to as second component, and similarly, and second component can be with
The referred to as first component, the component of top and bottom in any case, can also be exchanged or be converted each other；One end and the other end
Component can each other performance it is same or different.
In addition, in component parts, although without its specific description, it is to be understood that necessarily including certain error region
Domain.
When describing positional relationship, for example, when sequence of positions is described as " ... on ", " in ... top ", " ...
Lower section " and when " next ", unless use vocabulary or term as " lucky " or " direct ", furthermore then may include they it
Between the situation that does not contact or contact.If mentioning first element is located at second element "upper", is not meant in figure
One element must be positioned at the top of second element.The upper and lower part of the component angle according to the observation and can change in orientation of
And change.It therefore, in the accompanying drawings or in actual configuration, can if relating to the case where first element is located at second element "upper"
To include the case where the case where first element is located at second element " lower section " and first element is located at second element " top ".?
When describing time relationship, unless " lucky " or " direct " is used, otherwise at description " later ", " subsequent ", " subsequent " and " before "
When, it may include between step and discontinuous situation.
The feature of various embodiments of the present invention can partly or wholly be combined with each other or splice, and can be with
As what those skilled in the art can fully understand is executed with various be configured differently.Embodiment of the present invention can be each other
It independently executes, or can be executed together with complementary relationship.
Claims (14)
1. a kind of encapsulation foreboard, the encapsulation foreboard is the composite membrane for being fitted in solar cell module upper surface, and feature exists
From top to bottom in, the composite membrane, including anti-stick coating, frosted aging-resistant layer, the first film substrate layer, the first adhesive layer,
Aqueous vapor separation layer.
2. a kind of encapsulation foreboard according to claim 1, the aqueous vapor separation layer lower surface further includes one layer of modified primary coat
Coating.
3. a kind of encapsulation foreboard according to claim 2, the modified primary coat coating lower surface further includes the second film base
Material layer.
4. a kind of encapsulation foreboard according to claim 3, the second film substrate layer lower surface further includes the second gluing
Oxidant layer.
5. a kind of encapsulation foreboard according to claim 4, second adhesive layer lower surface further includes one layer of PE protection
Film.
6. a kind of -5 any encapsulation foreboard, the first film substrate layer according to claim 1 are the PET of high light transmission
Film, with a thickness of 50-200um, 90% or more light transmittance；Second film substrate layer is PET, PEN or PBT film of high light transmission,
90% or more light transmittance, with a thickness of 50-200um.
7. a kind of preparation process for encapsulating foreboard, which is characterized in that
Step 1: abrasive particle, antiaging agent being uniformly mixed with organic polymer solution, in the upper table of the first film substrate layer
Face forms the dry film of continuous frosted aging-resistant layer by processing；
Step 2: the composite membrane prepared using step 1 prepares the dry film of anti-stick coating in the upper surface of above-mentioned dry film；
Step 3: the fluid of the first adhesive layer of preparation, the composite membrane prepared using above-mentioned steps 2, under the first film substrate layer
Surface is applied using line, blade coating or roll coating model handle above-mentioned fluid, is obtained the wet film of the first adhesive layer, is obtained first after dry
The dry film of adhesive layer；
Step 4: the composite membrane prepared using step 3, the lower surface of first adhesive layer using atom layer deposition process or
Magnetron sputtering technique prepares aqueous vapor separation layer.
8. a kind of preparation process for encapsulating foreboard according to claim 7, which is characterized in that further include following steps: described
Aqueous vapor separation layer lower surface is coated with the wet film of modified primary coat coating, and modified primary coat coating is formed after 70-90 DEG C of drying of high temperature
Dry film.
9. a kind of preparation process for encapsulating foreboard according to claim 8, which is characterized in that further include following steps: described
The compound second film substrate layer in dry film lower surface of modified primary coat coating.
10. a kind of preparation process for encapsulating foreboard, which is characterized in that further include following steps:
Step 1: abrasive particle, antiaging agent being uniformly mixed with organic polymer solution, in the upper table of the first film substrate layer
Face forms the dry film of continuous frosted aging-resistant layer by processing；
Step 2: the composite membrane prepared using step 1 prepares the dry film of anti-stick coating in the upper surface of above-mentioned dry film；
Step 3: the fluid of the first adhesive layer of preparation, the composite membrane prepared using above-mentioned steps 2, under the first film substrate layer
Surface is applied using line, blade coating or roll coating model handle above-mentioned fluid, obtains the wet film of the first adhesive layer, and 50-100 DEG C, 1-
The dry film of the first adhesive layer is obtained after 5min is dry；
Step 4: providing the second film substrate layer, surface is coated with the wet film of modified primary coat coating on it, dry through 70-90 DEG C of high temperature
The dry film of modified primary coat coating is formed after dry；Then, atom layer deposition process is used in the upper surface of the modified primary coat coating
Or magnetron sputtering technique prepares aqueous vapor separation layer；Then the composite membrane successively prepared above-mentioned steps is prepared compound with step 3
Film distinguishes laminated combination, and winding is spare after pressurization bonding is compound, wherein the aqueous vapor separation layer and the first adhesive layer are bonding.
11. according to a kind of preparation process for encapsulating foreboard of claim 9 or 10, which is characterized in that further include following steps:
The wet film of the second adhesive layer is prepared using modes such as spray, blade coating or roller coating in the lower surface of the second film substrate layer,
50-100 DEG C, the second adhesive layer, thickness 5-30um are obtained after 1-5min is dry.
12. a kind of preparation process for encapsulating foreboard according to claim 11, which is characterized in that further include following steps:
The compound PE protective film in second adhesive layer lower surface, winding.
13. a kind of preparation process of encapsulation foreboard according to claim 7 or 10, in the step 1, it is resistance to old to form frosted
Change the processing specific steps of layer dry film are as follows: pass through blade coating or roller coating coating method preparation mill in the upper surface of the first film substrate layer
Sand coating wet film, the wet film are formed by curing continuous frosted aging-resistant layer after UV irradiates 10-50S at a temperature of 50-100 DEG C
Dry film.
14. a kind of preparation process of encapsulation foreboard according to claim 7 or 10, in the step 2, the coating it is dry
The specific preparation step of film are as follows: the upper surface of the dry film described in step 2 is coated with silicon oil solution by way of blade coating or line painting, passes through
The dry film of anti-stick coating is prepared after 140-160 DEG C of high temperature drying 1-5min of oven heat high temperature.
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Cited By (1)
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| CN114621695A (en) * | 2020-12-11 | 2022-06-14 | 东莞睿德新材料有限公司 | Blue-light-proof antibacterial frosted coating, protective film applying coating and preparation method of protective film |
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