CN109087963A - 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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- CN109087963A CN109087963A CN201811120896.1A CN201811120896A CN109087963A CN 109087963 A CN109087963 A CN 109087963A CN 201811120896 A CN201811120896 A CN 201811120896A CN 109087963 A CN109087963 A CN 109087963A
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- 238000005538 encapsulation Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 239000012528 membrane Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000002313 adhesive film Substances 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 230000032683 aging Effects 0.000 claims abstract description 20
- 238000002834 transmittance Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000010408 film Substances 0.000 claims description 113
- 150000001875 compounds Chemical class 0.000 claims description 27
- 239000003292 glue Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000012766 organic filler Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims description 6
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 5
- 229920001490 poly(butyl methacrylate) polymer Polymers 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 4
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 4
- 229920000620 organic polymer Polymers 0.000 claims description 4
- UGFMBZYKVQSQFX-UHFFFAOYSA-N para-methoxy-n-methylamphetamine Chemical group CNC(C)CC1=CC=C(OC)C=C1 UGFMBZYKVQSQFX-UHFFFAOYSA-N 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000007761 roller coating Methods 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 description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000012536 packaging technology Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000003666 anti-fingerprint Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 73
- 230000000694 effects Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000003678 scratch resistant effect Effects 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002955 isolation 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
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 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
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 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
- 239000003595 mist Substances 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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, the composite membrane from top to bottom, including anti-stick coating, frosted aging-resistant layer, the first film substrate layer, the first adhesive film, the second film substrate layer, modified primary coat coating, aqueous vapor separation layer.The requirement (less than 5 years) that encapsulation foreboard of the invention can satisfy the lower water vapor transmittance of mobile energy class and lower service life requires, while this flexible front plate surface anti-fingerprint damage resistant, packaging technology are succinctly efficient, material and process costs are lower.
Description
Technical field
The present invention relates to a kind of solar cell package components, relate more specifically to a kind of for flexible mobile solar-electricity
The encapsulation foreboard and its preparation process in pond field.
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
The foreboard encapsulating structure of a kind of solar components, wherein encapsulation front board structure just includes used one in the first EVA film
Layer ETFE fluoroplastics film, the structure can be improved durability and heat-proof quality.Flexible thin-film solar cell is as solar cell
A new varieties, it is technologically advanced, function admirable, widely used, be increasingly valued by people.Partially flexible encapsulates foreboard
Using 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, packaging technology
Complicated and yields is lower, is not suitable for mobile energy low cost, the use that lower service life, packaging technology are simple and efficient is wanted
It asks.
Summary of the invention
For problem of the existing technology before, the present invention provides a kind of encapsulation front board structures for solving described problem
And preparation method.The present invention develops plate material before a encapsulation, and discloses its preparation process, can using it is of the invention too
Positive energy cell package foreboard, expires with what anti-fingerprint damage resistant, lower water vapor transmittance, low cost, packaging technology were simple and efficient
Foot consumption category mobile energy service life requires.
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 film, the second film substrate layer, modified primary coat coating, 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.
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.
Encapsulation foreboard provided by the invention, the composite of performance index that the composite membrane of composition is shown are as follows: with a thickness of
0.3-1mm, light transmittance 90%-93%, mist degree 20-75%, water vapor transmittance 10-2g/m2/ day -10-6g/m2/ day, surface are hard
Spend 2H-3H, tensile strength 170MPa or more, elongation at break 140%, encapsulation foreboard of the invention 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 simultaneously, has abandoned at high cost, complex process fluorine-contained film, use is organic
And/or the compound tunic of inorganic material composition, meet the encapsulation standard of flexible mobile battery plate.In preferred embodiments of the present invention
In, compound second adhesive film in aqueous vapor separation layer lower surface.
In further preferred scheme, the compound PE protective film in second adhesive film lower surface.
In further 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 high light transmission film substrate layer, with a thickness of 50-200um.Further
In preferred scheme, the first film substrate layer is the PET film of high light transmission, 90% or more light transmittance.
In further preferred scheme, first, second glue film can be POE glue film, 90% or more light transmittance, thickness
For 100-300um.
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.
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 aqueous vapor separation layer, with a thickness of 1-30um.
The present invention furthermore provides a kind of preparation process for encapsulating foreboard, which comprises the steps of: step
1: abrasive particle, antiaging agent being uniformly mixed with organic polymer solution, pass through place in the upper surface of the first film substrate layer
Reason forms the dry film of even frosted aging-resistant layer；
Step 2: the composite membrane prepared using step 1 is prepared by way of blade coating or line painting in the upper surface of above-mentioned dry film
The dry film of anti-stick coating；
Step 3: the second film substrate layer being provided, is coated with the wet film of modified primary coat coating in its lower surface, after drying shape
At the dry film of modified primary coat coating；
Step 4: the composite membrane prepared using step 3 uses atomic layer deposition work in the modified primary coat coating lower surface
Skill or magnetron sputtering technique prepare aqueous vapor separation layer；
Step 5: the first adhesive film of offer, the composite membrane for successively preparing step 2, the first adhesive film, prepared by step 4
Composite membrane compress compound, wherein first adhesive film upper surface and the first film substrate layer lower surface bond, institute
It states the first adhesive film lower surface and the aqueous vapor separation layer upper surface to bond, it is multiple to carry out preliminary hot pressing by continuous high temperature roll squeezer
It closes.
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.
In further preferred scheme, the organic filler be PMMA, PBMA, PDMS, the inorganic particulate be SiO2,
Al2O3,ZrO2；Organic polymer solution is often one or both of acrylic compounds, polyurethane material.
Further include following steps in the step 5: pressing and the second adhesive film is also further added in compound tense, with institute
Aqueous vapor separation layer lower surface is stated to be bonded.
Further include following steps in the step 5 in further preferred scheme: pressing compound tense and also further add
Enter the anti-sticking fluorine-contained film of high temperature resistant, bonded with second adhesive film lower surface, PE guarantor is changed to after hot pressing Compound cooling
Cuticula winding.
In further preferred scheme, in the step 1, the processing for forming the frosted aging-resistant layer dry film is specifically walked
Suddenly are as follows: frosted coating wet film, the wet film are prepared by blade coating or roller coating coating method in the upper surface of the first film substrate layer
The dry film of continuous frosted aging-resistant layer is formed by curing after UV irradiates 10-50S at a temperature of 50-100 DEG C.
In further preferred scheme, in the step 2, the specific steps of the dry film of the coating are as follows: in step 2 institute
The upper surface for the dry film stated is coated with silicon oil solution by way of blade coating or line painting, through the 140-160 DEG C of high temperature drying of oven heat high temperature
The dry film of anti-stick coating is prepared after 1-5min.
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. being radiated by the wet film material for forming abrasive particle, antiaging agent in compatible polymer solution in UV
The processing of lower film-forming, so that the ageing-resistant coating of uniform fold frosted on film substrate, protects the steam of composite membrane lower part
Barrier 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. the setting of aqueous vapor separation layer can make water vapor transmittance up to 10-5g/m2/ day；
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 glue film as bonding transition zone, good each film layer compound before is carried out in order compound；Roll-in is multiple
Conjunction mode can also reinforce the composite force between each film layer.
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 schematic diagram of the encapsulation foreboard composite membrane of one embodiment of the invention.
Fig. 2 is the schematic diagram of the encapsulation foreboard composite membrane of one embodiment of the invention.
Wherein appended drawing reference are as follows: 1- anti-stick coating, 2- frosted aging-resistant layer, 3- the first film substrate layer, the second glue film of 4-
Layer, the second film substrate of 5- layer, 6- modified primary coat coating, 7- aqueous vapor separation layer, the first adhesive film of 8-, 9-PE protective film.
Specific embodiment
Hereinafter, will be made more in conjunction with Figure of description and specific embodiment to technical solution of the present invention and advantage
Detailed explanation and illustration.It should be understood that the content presented in specification, specific embodiment and Figure of description,
Just to clearly illustrate technical solution of the present invention and its advantage, protection scope of the present invention is not constituted and limited
System.Those skilled in the art can on the basis of specification disclosure, for it is various it is reasonable changed after
Technical solution, as long as it does not depart from the spirit of the invention, and the technical solution after various change is included in protection scope of the present invention
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
Preferably contain antiaging agent, which has wear-resisting, scratch-resistant, ageing-resistant effect；3 be the first film substrate layer, with a thickness of preferred
For 50-200um, more preferably 80-150um, more preferably 100-120um, the first film substrate is preferably high saturating
The PET film of light, it is seen that light transmittance is 90% or more, which has high light transmission effect；4 be the first adhesive film, preferably hot
Plastotype glue film, first adhesive film are preferably POE glue film, 90% or more light transmittance, with a thickness of 100-300um, more preferably
For 150-250um, more preferably 180-220um, more preferably 200um, which has high light transmission effect, while playing viscous
It connects, transitional function；5 be the second film substrate layer, and the film substrate layer is preferably PET, PEN or PBT film of high light transmission, thoroughly
90% or more light rate, with a thickness of 50-200um, more preferably 80-150um, more preferably 100-120um, which has
High light transmission effect；6 be modified primary coat coating, with a thickness of preferred 1-15um, more preferably 3-12um, more preferably 5-8um,
The layer has weatherability effect；7 be aqueous vapor separation layer, with a thickness of preferred 1-30um, more preferably 5-25um, more preferably
10-20um, more preferably 15um, this layer have the function of obstructing steam.
The specific preparation process of the present embodiment encapsulation foreboard are as follows:
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, it is wet by the common coating method preparation frosted coating such as blade coating, roller coating in the upper surface of the first film substrate 3
Film, wet film are formed by curing continuous frosted coating dry film after UV irradiates 10-50S at a temperature of 50-100 DEG C, i.e. layer 2 in Fig. 1,
Wherein abrasive particle can be organic fillers or the SiO such as PMMA, PBMA, PDMS2、Al2O3、ZrO2Equal inorganic particulates, You Jigao
Molecular solution is 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: using the second film substrate layer 5, modified primary coat coating wet film is coated in 5 lower surface of layer, through high temperature 70-90
Primary coat coating dry film, i.e. layer 6 in Fig. 1 are formed after DEG C dry, this coating can be the coatings such as acrylic acid, polyurethane, polyesters；
Step 4: the composite membrane prepared using step 3 uses atom layer deposition process, magnetron sputtering work in 6 lower surface of layer
The water vapor rejections such as skill film often prepares aqueous vapor separation layer 7 with preparation process；
Step 5: the composite membrane for successively preparing step 2, the first glue film 4, step 4 prepare composite membrane, from top to bottom according to
It is secondary press it is compound, wherein first adhesive film upper surface and the first film substrate layer lower surface bond, first glue
Film layer lower surface and the aqueous vapor separation layer upper surface bond, and it is compound to carry out preliminary hot pressing by continuous high temperature roll squeezer, and receives
Volume obtains finished product.
Described in the present embodiment encapsulate foreboard composite membrane schematic diagram as shown in Figure 1, its encapsulate foreboard composite membrane from up to
Under, including anti-stick coating 1, frosted aging-resistant layer 2, the first film substrate layer 3, the first adhesive film 4, the second film substrate layer 5,
Modified primary coat coating 6, aqueous vapor separation layer 7.
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.
Embodiment 2
Further to adjust and optimizing the structure and comprehensive performance that flexible solar battery of the present invention encapsulates foreboard, this implementation
Example 2 makes following improvement to structure and its preparation process on the basis of embodiment 1 encapsulates foreboard.Preferably, embodiment 1
On the basis of encapsulating foreboard, compound second adhesive film 8 in 7 lower surface of aqueous vapor separation layer.
It is furthermore preferred that the compound PE protective film 9 in 8 lower surface of the second adhesive film.
In the present embodiment, aqueous vapor separation layer 7 is designed as not covering directly with solar cell module and be contacted by design person, in
Between between alternating floor glue film 8, be on the one hand avoided that battery component generate water and gas breaks aqueous vapor separation layer, on the other hand also can
It avoids the substances such as EVA from contacting with solar panel and causes circuit break and short circuit problem；Wherein, 8 be the second adhesive film, preferably hot
Plastotype glue film, thermoplastics type's glue film are preferably POE glue film, 90% or more light transmittance, with a thickness of 100-300um, more preferably
150-250um, more preferably 180-220um, more preferably 200um, this layer play the role of bonding, isolation, are encapsulating
When foreboard encapsulates, which can closely be bonded in the upper surface of solar panel；9 be PE protective film, the protection
Film is easily torn, and plays the role of protection packaging foreboard finished composite film, and foreboard composite membrane needs to be packaged are packaged in solar energy
When battery surface, this layer of protective film is opened.
The preparation process that foreboard is encapsulated in the present embodiment, is to make following optimization, example in the preparation process of embodiment 1
Such as:
Preferably, further include following steps in the step 5 on the basis of the preparation process of embodiment 1: pressing compound
When, the second adhesive film 8 is added, is bonded with the aqueous vapor separation layer lower surface.
It is furthermore preferred that further including following steps in the step 5: pressing compound tense, it is anti-sticking fluorine-containing thin that high temperature resistant is added
Film is bonded with 8 lower surface of the second adhesive film, compound by the preliminary hot pressing of continuous high temperature roll squeezer progress, after cooling
It replaces PE protective film 9 and winds and obtain finished product.
Described in the present embodiment encapsulate foreboard composite membrane schematic diagram as shown in Fig. 2, its encapsulate foreboard composite membrane from up to
Under, including anti-stick coating 1, frosted aging-resistant layer 2, the first film substrate layer 3, the first adhesive film 4, the second film substrate layer 5,
Modified primary coat coating 6, aqueous vapor separation layer 7, the second adhesive film 8, PE protective layer 9.
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 (containing PE protective film if any composite membrane, first tear this layer of protective film off) provided by the invention, is then placed in
Laminating machine is packaged, and 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.
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 (15)
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 film,
Two film substrate layers, modified primary coat coating, aqueous vapor separation layer.
2. a kind of encapsulation foreboard according to claim 1, compound second adhesive film in aqueous vapor separation layer lower surface.
3. a kind of encapsulation foreboard according to claim 3, the compound PE protective film in second adhesive film lower surface.
4. a kind of encapsulation foreboard according to claim 3, contain abrasive particle, the frosted in the frosted aging-resistant layer
Particle is the combination of organic filler, inorganic particulate or both.
5. a kind of encapsulation foreboard according to claim 4, the organic filler is PMMA, PBMA, PDMS, the inorganic grain
Son is SiO2、Al2O3、ZrO2。
6. -5 any a kind of encapsulation foreboard according to claim 1, the first film substrate layer is that the PET of high light transmission is thin
Film, 90% or more light transmittance.
7. -5 any a kind of encapsulation foreboard according to claim 1, first, second glue film can be POE glue film, light transmission
90% or more rate, with a thickness of 100-300um.
8. -5 any a kind of encapsulation foreboard according to claim 1, the second film substrate layer be high light transmission PET,
PEN or PBT film, 90% or more light transmittance.
9. -5 any a kind of encapsulation foreboard according to claim 1, the modified primary coat coating can with a thickness of 1-15um
It is selected as acrylic acid, polyurethane or polyester type coating.
10. a kind of preparation process for encapsulating foreboard, which comprises the steps of:
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 even frosted aging-resistant layer by processing；
Step 2: the composite membrane prepared using step 1 is prepared by way of blade coating or line painting anti-sticking in the upper surface of above-mentioned dry film
The dry film of coating；
Step 3: the second film substrate layer being provided, the wet film of modified primary coat coating is coated in its lower surface, is formed change after drying
The dry film of property primary coat coating；
Step 4: the composite membrane prepared using step 3, the modified primary coat coating lower surface using atom layer deposition process or
Magnetron sputtering technique prepares aqueous vapor separation layer；
Step 5: the first adhesive film, the composite membrane for successively preparing step 2, the first adhesive film, composite membrane prepared by step 4 are provided
Compress compound, wherein first adhesive film upper surface and the first film substrate layer lower surface bond, and described first
Adhesive film lower surface and the aqueous vapor separation layer upper surface bond, and it is compound to carry out preliminary hot pressing by continuous high temperature roll squeezer.
11. a kind of preparation process for encapsulating foreboard according to claim 10, further includes following steps in the step 5:
Press and the second adhesive film is also further added in compound tense, is bonded with the aqueous vapor separation layer lower surface.
12. a kind of preparation process for encapsulating foreboard according to claim 11, further includes following steps in the step 5:
Press compound tense and the anti-sticking fluorine-contained film of high temperature resistant is also further added, is bonded with second adhesive film lower surface, hot pressing
The winding of PE protective film is changed to after Compound cooling.
13. a kind of preparation process for encapsulating foreboard according to claim 10, in the step 1, it is resistance to form the frosted
The processing specific steps of aging layer dry film are as follows: pass through blade coating or the preparation of roller coating coating method in the upper surface of the first film substrate layer
Frosted 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 for encapsulating foreboard according to claim 12, in the step 2, the dry film of the coating
Specific steps are as follows: the upper surface of the dry film described in step 2 blade coating or line painting by way of be coated with silicon oil solution, through oven heat
The dry film of anti-stick coating is prepared after 140-160 DEG C of high temperature drying 1-5min of high temperature.
15. a kind of preparation process for encapsulating foreboard according to claim 12, modified primary coat coating can be in the step 3
The coatings such as acrylic acid, polyurethane, polyesters.
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