CN104465836A - Solar cell insulation back material, solar cell module and production process of solar cell - Google Patents
Solar cell insulation back material, solar cell module and production process of solar cell Download PDFInfo
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- CN104465836A CN104465836A CN201410676747.9A CN201410676747A CN104465836A CN 104465836 A CN104465836 A CN 104465836A CN 201410676747 A CN201410676747 A CN 201410676747A CN 104465836 A CN104465836 A CN 104465836A
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- solar
- electricity pool
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- fluorine
- insulation backing
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Links
- 238000009413 insulation Methods 0.000 title claims abstract description 75
- 239000000463 material Substances 0.000 title abstract description 18
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 63
- 239000011737 fluorine Substances 0.000 claims abstract description 50
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 50
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000009832 plasma treatment Methods 0.000 claims abstract description 40
- 238000003851 corona treatment Methods 0.000 claims abstract description 36
- 238000005516 engineering process Methods 0.000 claims abstract description 23
- 239000012790 adhesive layer Substances 0.000 claims abstract description 19
- 229920000578 graft copolymer Polymers 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims description 28
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 239000008393 encapsulating agent Substances 0.000 claims description 24
- 239000000853 adhesive Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 229920001577 copolymer Polymers 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- -1 siloxanes Chemical class 0.000 claims description 17
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 229920002799 BoPET Polymers 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 12
- 239000005041 Mylar™ Substances 0.000 claims description 11
- 239000005977 Ethylene Substances 0.000 claims description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 10
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 10
- 125000003636 chemical group Chemical group 0.000 claims description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 10
- 229910000077 silane Inorganic materials 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000005012 migration Effects 0.000 claims description 7
- 238000013508 migration Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 5
- 229920001567 vinyl ester resin Polymers 0.000 claims description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002585 base Substances 0.000 abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 12
- 238000000576 coating method Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 238000010030 laminating Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 238000003475 lamination Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 230000004913 activation Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920006361 Polyflon Polymers 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N benzene-dicarboxylic acid Natural products OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000011415 microwave curing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/186—Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a solar cell insulation back material, a solar cell module and a production process of a solar cell. The solar cell insulation back material comprises a fluorine-containing film layer, an adhesive layer, a base layer and a bonding layer, and a plasma graft treatment layer is formed between the base layer and the bonding layer. The solar cell insulation back material has an excellent bonding property, excellent insulativity and an excellent water vapor barrier property and is suitable for the solar cell module under various weather conditions. Plasma treatment or corona treatment is conducted on the base layer, so that the surface of the base layer is etched and activated, a microcosmic non-interface integration graft copolymer layer, namely the plasma graft treatment layer, is further formed between the base layer and the bonding layer, and the problems of use layering and reworking application layering brought by a traditional physical compounding technology are solved. The solar cell module containing the solar cell insulation back material has acid and alkali resistance, salt spray fog corrosion, wet and heat ageing resistance, ultraviolet ageing resistance and wind and sand corrosion resistance and can be applied to being packaged under various weather conditions.
Description
Technical field
The invention belongs to area of solar cell, be specifically related to a kind of solar-electricity pool insulation backing, assembly and production technology thereof.
Background technology
Solar module is sandwich construction, is formed by glass, glue-line, cell piece, glue-line, backing successively laminating packaging.Wherein solar-electricity pool insulation backing, is positioned at the back side of solar panel, plays protection and supporting role, have reliable insulating properties, water preventing ability, resistance to ag(e)ing to cell piece.The quality of backboard, directly affects the globality of solar cell, mechanical strength, block-water performance and ageing-resistant performance.In prior art, solar-electricity pool insulation backing mainly adopts the five-layer structure of two-sided compound and the three-decker of dual coating, is applied to the encapsulation of solar module.
The structure that the five-layer structure of the two-sided compound of current employing is comparatively commonly used is TPT structure, main supplier and product have the Tedler backboard of du pont company, relatively more conventional structure is TPT structure, wherein T refers to the Tedler film of E.I.Du Pont Company, composition is polyvinyl fluoride, P refers to poly terephthalic acid diol ester (PET) film, TPT is PVF/PET/PVF structure, due to containing fluorine, Tedler film has special structural stability, this product of current E.I.Du Pont Company has developed third generation Tedler product, and it is that in institute's fluorine material, cost is minimum.In order to more reduce costs, TPE fabric backplanes has been invented by the Madico company of the U.S., and E refers to ethylene-vinyl acetate resin (EVA) film, and TPE is PVF/PET/EVA structure.Be no matter TPT structure or TPR structure or other similar structures retes in prior art, each film layer structure is usually by suitable adhesive bond.Such as, Chinese Patent Application No. is the patent of 201220042616.1, discloses a kind of fluorine-containing high durable type solar cell notacoria, comprises base material, the one side of described base material is provided with fluorine-containing coat or fluoro-containing copolymer film, polyolefin layer is set at the another side of base material; Connected by the first tack coat between described base material and fluorine-containing coat or fluoro-containing copolymer film, connected by the second tack coat between described base material and polyolefin layer.Although said structure notacoria has excellent anti-hydrolytic performance, electrical insulation properties, mechanical property.But when preparing this structure solar battery back film, the bonding of each interlayer all uses combination process, there is complex procedures, the shortcoming that the production cycle is long.Simultaneously due to fluorine material self character, there is surface energy high, surface hydrophobic, the feature of bad adhesion, therefore also make fluorine material more complicated with the bonding processing technology of basic unit, and there is heat transfer efficiency difference, reflecting rate is low, weatherability is poor shortcoming.
In order to solve the problems of the technologies described above, improve the useful life of cell piece, improve the overall performance of backing, a kind of low cost is provided, the solar cell notacoria that production cycle is shorter and conductance is high, reflecting rate is high, ageing-resistant performance is good, occurs in prior art carrying out improved plan for the structure &processes of solar cell notacoria in a large number.Such as, Chinese Patent Application No. is the patent of 201220644624.3, disclose a kind of solar battery back film and solar module, this solar battery back film is four-layer structure, comprise set gradually from top to bottom weathering film layer, macromolecular adhesive layer, basic unit and weathering resistance coatings, wherein: basic unit is PET basic unit, mutually bonding by macromolecular adhesive layer between weathering film layer with basic unit, weathering resistance coatings is then the coating be formed directly in basic unit, instead of and use binding agent compound, simplify production technology.Weathering resistance coatings is made up of polyflon, daiflon, acrylic resin, polyurethane, epoxy resin or silicon rubber.But this invention needs repeatedly to apply weathering resistance coatings to avoid pin hole, brings thus and applies weathering resistance coatings several times, make weathering resistance coatings inadequate with base ply adhesion, be difficult to avoid applying the pin hole problems produced simultaneously.And for example, Chinese Patent Application No. is the patent of 201210382654.6, disclose the solar cell backboard that a kind of weather resistance is excellent, described battery back-sheet is four-layer structure, and described four-layer structure is from top to bottom followed successively by: fluorine-containing composite membrane, glue-line, PET film and fluoroplastic film layer.This invention, after PET film carries out preliminary treatment, at the side of PET film coating fluorine resin, forms fluoroplastic film layer after heat drying.Preliminary treatment can reduce the surface energy of material, PET film and fluoroplastic film layer are more easily bondd, preliminary treatment is by plasma treatment or surface corona process, but two interlayers belong to simple physics compound, although fluorine-containing composite membrane can resist ultraviolet wire spoke according to equivalent damage, ensure that backboard possesses excellent weathering performance, if but prolonged application is strong in illumination, in moist or dry climate environment, the phenomenon of easy generation layering and applying hierarchical of doing over again, can not available protecting cell piece, reduce useful life of cell piece and the solar module overall performance formed and mechanical strength lower.
Therefore, prepare a kind of overall performance and better also efficiently can protect cell piece, and there is the solar cell backboard of excellent adhesive property, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
Technical problem to be solved by this invention is the deficiency overcoming above-mentioned prior art; one is provided to have superior adhesion energy; there is the solar-electricity pool insulation backing of good insulation property and weather resistance simultaneously; this back of the body solar-electricity pool insulation backing adopts chemically composited technology; achieve the compound between basic unit and tack coat; solve and there is layering and the problem of applying hierarchical of doing over again when using solar module; effectively protect cell piece, improve the useful life of solar module.
For achieving the above object, the technical solution used in the present invention is:
A kind of solar-electricity pool insulation backing, described solar-electricity pool insulation backing comprises fluorine-containing rete, adhesive layer, basic unit, tack coat from top to bottom successively, is formed with plasma grafting processing layer between described basic unit and tack coat.
Described tack coat is any one or several compositions in fluorine-containing alloy resin, mylar or acrylic resin.
Described fluorine-containing alloy resin is any one or several compositions in tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer, chlorotrifluoroethylene-vinyl ether co-polymer or chlorotrifluoroethylene-vinyl ester copolymer.
The graft copolymer that described plasma grafting processing layer is-OH hydroxyl ,-COOH carboxyl ,-NH2 are amino, any one or several chemical groups in-CO carbonyl and siloxanes or silane are formed.
Described siloxanes is any one in Allyl Siloxane, vinylsiloxane, flucride siloxane.
The thickness of described solar-electricity pool insulation backing is 100 μm ~ 450 μm, and preferred thickness is 150 μm ~ 350 μm; Described adhesive layer thickness is 5 μm ~ 25 μm, and preferred thickness is 10 μm ~ 20 μm; Described plasma grafting processing layer thickness is 0.001 μm ~ 10 μm, and preferred thickness is 0.01 μm ~ 0.3 μm.
A processing technology for solar-electricity pool insulation backing, comprises three kinds of processes, and wherein, method one comprises the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, then under 20 DEG C ~ 150 DEG C conditions, carry out Microwave Treatment or heat treated 6 ~ 15 minutes, form adhesive linkage, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer;
Step 3: the surface-coated adhesive not carrying out plasma treatment or corona treatment in basic unit, is compounded in adhesive surface by fluorine-containing rete, and under 35 DEG C ~ 70 DEG C conditions, slaking 30 ~ 60 hours, forms fluorine-containing rete and adhesive layer.
Method two comprises the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the surface-coated adhesive not carrying out plasma treatment or corona treatment in basic unit, is compounded in adhesive surface by fluorine-containing rete, and under 35 DEG C ~ 70 DEG C conditions, slaking 30 ~ 60 hours, forms fluorine-containing rete and adhesive layer;
Step 3: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, then under 20 DEG C ~ 150 DEG C conditions, carry out Microwave Treatment or heat treated 6 ~ 15 minutes, form adhesive linkage, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer.
Method three comprises the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, do not carry out the surface-coated adhesive of plasma treatment or corona treatment in basic unit simultaneously, fluorine film is compounded in adhesive surface, then under 20 DEG C ~ 150 DEG C conditions, Microwave Treatment or the process 6 ~ 15 minutes that is heating and curing first is carried out, form tack coat, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer; Simultaneously forming adhesive layer and fluorine-containing rete in addition; Slaking 30 ~ 60 hours under 35 DEG C ~ 70 DEG C conditions again, makes each layer solidify further, composition solar-electricity pool insulation backing.
Solar-electricity pool insulation backing prepared by above-mentioned three kinds of methods, in its tack coat, non-bonding plane carries out plasma treatment or corona treatment.
After the non-bonding plane of the tack coat of solar-electricity pool insulation backing carries out plasma treatment or corona treatment, make the non-bonding plane surface etch activation of tack coat, reduce the surface energy of the non-bonding plane of tack coat, tack coat and encapsulant are more easily bondd.Improve globality and the mechanical performance of solar module of the present invention.
A kind of solar module, described solar module comprises the photic zone, encapsulant, cell piece, encapsulant and the solar-electricity pool insulation backing that stack gradually, and described solar-electricity pool insulation backing is solar-electricity pool insulation backing described above.
Chemical graft reaction refers to side chain suitable by chemical bonds on macromolecular chain or the reaction of functional side group, and the product formed is called graft copolymer.The performance of graft copolymer is decided by the composition of main chain and side chain, structure, length and side chain number.The similar blend of graft of long-chain branch, side chain is short and many, and large graft is similar random copolymer then.By copolymerization, by the polymer graft of two kinds of different in kinds together, the graft that forming property is special.The present invention, after carrying out plasma treatment or corona treatment to basic unit, by microwave treatment conditions, realizes the molecular migration between basic unit and tack coat, chemical graft reaction occurs, makes-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH
2one or more chemical groups in amino ,-CO carbonyl are polymerized with the siloxanes in tack coat or silane and form graft copolymerization nitride layer, are equivalent to a kind of polymeric composition layer of integration, namely define plasma grafting processing layer.
Because technique scheme is used, the present invention compared with prior art tool has the following advantages:
1, solar-electricity pool insulation backing of the present invention and assembly, its uv-resistant ultraviolet ageing superior performance, not only can be applied to general outdoor environment, can also be applied to the desert region that illumination is strong; Water vapor rejection performance is superior, can effectively prevent the steam in air from entering solar module inside, causes component insulation to lose efficacy and accelerated ageing; Antiacid alkali, salt air corrosion, the solar module encapsulation that can be applicable to ocean climate and prairie climate uses.
2, the present invention is formed with plasma grafting processing layer between basic unit and tack coat, basic unit and tack coat is made to form integrated chemical bonding, chemical graft reaction is there is between two-layer, add caking property and the barrier of two interlayers, solve the problem of use layering that conventional physical complex technique brings and applying hierarchical of doing over again.
3, the solar module containing solar-electricity pool insulation backing of the present invention, the encapsulating material in tack coat wherein and solar module has excellent adhesion strength.
Accompanying drawing explanation
A kind of solar-electricity pool insulation of Fig. 1 the present invention backing schematic cross-section.
A kind of solar module schematic cross-section of Fig. 2 the present invention.
In figure: 1-fluorine rete, 2-adhesive layer, 3-basic unit, 4-plasma grafting processing layer, 5-tack coat, 6-photic zone, 7-encapsulant, 8-cell piece, 9-encapsulant, 10-solar-electricity pool insulation backing.
Embodiment:
As shown in Figure 1, the invention provides a kind of solar-electricity pool insulation backing 10, be followed successively by fluorine-containing rete 1, adhesive layer 2, basic unit 3, plasma grafting processing layer 4, tack coat 5 from top to bottom.Solar-electricity pool insulation backing 10 of the present invention, has excellent caking property, insulating properties and water vapor barrier property, and-OH hydroxyl ,-COOH the carboxyl ,-NH in basic unit 3
2siloxanes in the chemical groups such as amino ,-CO carbonyl and tack coat 5 or silane generation chemical graft react and form polymeric composition layer, the graft copolymer of this layer of integrated mixing, i.e. plasma grafting processing layer 4, achieve the integrated chemical bonding between basic unit 3 with tack coat 5, add the caking property between each layer and barrier.The present invention adopts chemically composited technology composite base 3 and tack coat 5, forms the integrated mixed grafting copolymer layer of microcosmic without interface by plasma process, solves the problem of use layering that conventional physical complex technique brings and applying hierarchical of doing over again.
Tack coat 5 thickness of the present invention is 5 μm ~ 25 μm, and preferred thickness is 10 μm ~ 20 μm; Concrete numerical value can be 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, 20 μm, 25 μm, and the selection of thickness here, meet the demand bondd between each layer, will improve the overall performance of notacoria simultaneously.
Plasma grafting processing layer 4 thickness is 0.001 μm ~ 10 μm, and preferred thickness is 0.001 μm ~ 0.3 μm.Concrete numerical value can be 0.001 μm, 0.002 μm, 0.01 μm, 0.05 μm, 0.15 μm, 0.20 μm, 0.25 μm, 0.30 μm.Plasma grafting processing layer 4 thickness of this size more can be satisfied the demand.
Described solar-electricity pool insulation backing 10 thickness is 100 μm ~ 450 μm, and preferred thickness is 150 μm ~ 350 μm, and concrete numerical value can be 155 μm, 200 μm, 250 μm, 300 μm, 325 μm, 400 μm, 425 μm.The selection of above-mentioned size more can meet the weatherability needs of notacoria, makes weatherability better.
As shown in Figure 2, the present invention also provides a kind of solar module containing above-mentioned solar cell insulating back panel 10, comprises the photic zone 6, encapsulant 7, cell piece 8, encapsulant 9 and the solar-electricity pool insulation backing 10 that stack gradually.Described solar-electricity pool insulation backing is solar-electricity pool insulation backing 10 provided by the invention.
Embodiment 1
The invention provides a kind of solar-electricity pool insulation backing, concrete preparation technology is:
(1) plasma treatment or corona treatment is carried out on arbitrary surface of basic unit 3;
(2) by any one or several combinations in tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer, chlorotrifluoroethylene-vinyl ether co-polymer or chlorotrifluoroethylene-vinyl ester copolymer, for subsequent use as fluorine-containing alloy resin;
(3) any one or several compositions in the fluorine-containing alloy resin, mylar or the acrylic resin that prepare are compounded in the surface that basic unit carries out plasma treatment or corona treatment, then through carrying out Microwave Treatment or the process 15 minutes that is heating and curing under 20 DEG C of conditions, form tack coat 5, form plasma grafting processing layer 4 simultaneously;
(4) at the surface-coated adhesive not carrying out plasma treatment of basic unit 3, fluorine film is compounded in adhesive surface, under 70 DEG C of conditions, slaking is fixed for 30 hours, forms adhesive layer 2 and fluorine-containing rete 1, composition solar-electricity pool insulation backing;
(5) plasma treatment or corona treatment is carried out at the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10.
Wherein, numerical value is selected can be different according to the material of each layer, select different acid extractions.In addition, heating-up temperature is higher, and the heating time adopted is shorter.
The invention provides a kind of solar module containing above-mentioned solar-electricity pool insulation backing 10, concrete preparation technology is: successively according to photic zone 6, encapsulant 7, cell piece 8, the order of encapsulant 9 and solar-electricity pool insulation backing 10 carries out stacked and visual examination, the tack coat 5 of solar-electricity pool insulation backing 10 is stacked with encapsulant 9, wherein encapsulant 9 is EVA, after the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10 carries out plasma treatment or corona treatment, make the non-bonding plane surface etch activation of tack coat, reduce the surface energy of the non-bonding plane of tack coat 5, tack coat 5 and encapsulant 9 EVA are more easily bondd.Improve globality and the mechanical performance of solar module of the present invention.Module feeding laminating machine after stacked is carried out lamination, and laminating parameters sets according to the fluidization characteristic of EVA, is generally 150 DEG C of laminated 20 minutes.The module finally completed by lamination carries out installation metal edge frame, installs terminal box and carry out power test and visual examination.
The power parameter of above-mentioned solar module is as follows:
Open circuit voltage Uoc (V) 22.25
Short circuit current Isc (A) 9.25
Operating voltage μm p (V) 17.27
Operating current Imp (A) 9.08
Maximum power Pmax (W) 156.78
Fill factor, curve factor 76.18%.
Embodiment 2
The invention provides a kind of solar-electricity pool insulation backing, concrete preparation technology is:
(1) plasma treatment or corona treatment is carried out on arbitrary surface of basic unit 3;
(2) do not carry out the surface-coated adhesive of plasma treatment or corona treatment in basic unit 3, fluorine film is compounded in adhesive surface, under 35 DEG C of conditions, slaking is fixed for 60 hours, forms adhesive layer 2 and fluorine-containing rete 1; (3) by any one or several combinations in tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer, chlorotrifluoroethylene-vinyl ether co-polymer or chlorotrifluoroethylene-vinyl ester copolymer, for subsequent use as fluorine-containing alloy resin;
(4) any one or several compositions in the fluorine-containing alloy resin, mylar or the acrylic resin that prepare are compounded in the surface that basic unit carries out plasma treatment or corona treatment, then under 150 DEG C of conditions, carry out microwave curing or be heating and curing 6 minutes, form tack coat 5, form plasma grafting processing layer 4, composition solar-electricity pool insulation backing simultaneously;
(5) plasma treatment or corona treatment is carried out at the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10.
Wherein, numerical value is selected can be different according to the material of each layer, select different acid extractions.In addition, heating-up temperature is higher, and the heating time adopted is shorter.
The invention provides a kind of solar module containing above-mentioned solar-electricity pool insulation backing 10, concrete preparation technology is: successively according to photic zone 6, encapsulant 7, cell piece 8, the order of encapsulant 9 and solar-electricity pool insulation backing 10 carries out stacked and visual examination, the tack coat 5 of solar-electricity pool insulation backing 10 is stacked with encapsulant 9, wherein encapsulant 9 is EVA, after the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10 carries out plasma treatment or corona treatment, make the non-bonding plane surface etch activation of tack coat, reduce the surface energy of the non-bonding plane of tack coat 5, tack coat 5 and encapsulant 9 EVA are more easily bondd.Improve globality and the mechanical performance of solar module of the present invention.Module feeding laminating machine after stacked is carried out lamination, and laminating parameters sets according to the fluidization characteristic of EVA, is generally 145 ° of C laminated 16 minutes.The module finally completed by lamination carries out installation metal edge frame, installs terminal box and carry out power test and visual examination.The power parameter of above-mentioned solar module is as follows:
Open circuit voltage Uoc (V) 6.21
Short circuit current Isc (A) 9.28
Operating voltage μm p (V) 4.89
Operating current Imp (A) 9.06
Maximum power Pmax (W) 44.30
Fill factor, curve factor 76.87%.
Embodiment 3
The invention provides a kind of solar-electricity pool insulation backing, concrete preparation technology is:
(1) plasma treatment or corona treatment is carried out on arbitrary surface of basic unit 3;
(2) by any one or several combinations in tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer, chlorotrifluoroethylene-vinyl ether co-polymer or chlorotrifluoroethylene-vinyl ester copolymer, for subsequent use as fluorine-containing alloy resin;
(3) any one or several compositions in the fluorine-containing alloy resin, mylar or the acrylic resin that prepare are compounded in the surface that basic unit carries out plasma treatment or corona treatment, simultaneously at the surface-coated adhesive not carrying out plasma treatment of basic unit 3, fluorine film is compounded in adhesive surface, then first through carrying out Microwave Treatment or the process 10 minutes that is heating and curing under 100 DEG C of conditions, form tack coat 5, form plasma grafting processing layer 4 simultaneously; Simultaneously forming adhesive layer 2 and fluorine-containing rete 1 in addition; After under 50 DEG C of conditions to above-mentioned each layer slaking 48 hours, each layer is solidified further, composition solar-electricity pool insulation backing;
(4) plasma treatment or corona treatment is carried out at the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10.
Wherein, numerical value is selected can be different according to the material of each layer, select different acid extractions.In addition, heating-up temperature is higher, and the heating time adopted is shorter.
The invention provides a kind of solar module containing above-mentioned solar-electricity pool insulation backing 10, concrete preparation technology is: successively according to photic zone 6, encapsulant 7, cell piece 8, the order of encapsulant 9 and solar-electricity pool insulation backing 10 carries out stacked and visual examination, the tack coat 5 of solar-electricity pool insulation backing 10 is stacked with encapsulant 9, wherein encapsulant 9 is EVA, after the non-bonding plane of tack coat 5 of solar-electricity pool insulation backing 10 carries out plasma treatment or corona treatment, make the non-bonding plane surface etch activation of tack coat, reduce the surface energy of the non-bonding plane of tack coat 5, tack coat 5 and encapsulant 9 EVA are more easily bondd.Improve globality and the mechanical performance of solar module of the present invention.Module feeding laminating machine after stacked is carried out lamination, and laminating parameters sets according to the fluidization characteristic of EVA, is generally 145 DEG C of laminated 16 minutes.The module finally completed by lamination carries out installation metal edge frame, installs terminal box and carry out power test and visual examination.The power parameter of above-mentioned solar module is as follows:
Open circuit voltage Uoc (V) 22.08
Short circuit current Isc (A) 9.28
Operating voltage Ump (V) 17.24
Operating current Imp (A) 9.10
Maximum power Pmax (W) 156.88
Fill factor, curve factor 76.56%
From embodiment 1-3, the solar module with solar-electricity pool insulation backing of the present invention can obtain very high fill factor, curve factor, thus improve the generating efficiency of assembly, the globality of lifting subassembly and mechanical strength, this technology has preparation technology simply simultaneously, the advantage that cost reduces greatly.
Embodiment 4 performance test:
Fluorine-containing rete 1, adhesive layer 2, basic unit 3, tack coat 5 are laminated successively, hot-forming, do not carry out plasma treatment, form the solar-electricity pool insulation backing of four-layer structure, product as a comparison.
1, weatherability test:
Adopt method disclosed in solar panel certification solar photovoltaic cell panel IEC61215, the solar cell backing of embodiment 1-3, contrast product tested, test condition is: the time is 2000h, and relative humidity is 85%rh, and probe temperature is 85 DEG C.Observation embodiment 1-3 and contrast product are with or without layering.Without being layered as OK, be layered as NO.Test result is as shown in table 1.
Adopt method disclosed in ASTMF-149, the solar cell backing of testing example 1-3 and contrast product carries out puncture voltage, and test result is as shown in table 1.Under being placed in 1KW ultraviolet xenon lamp at the solar cell backing 60 DEG C of embodiment 1-3 and contrast product, irradiating 150 hours, observe with or without variable color.Be OK without variable color, have variable color to be NO.Test result is as shown in table 1.
2, testing vapor transmission:
Adopt method disclosed in ISO 15106-3, the solar cell backing water inlet vapour transmitance of testing example 1-3 and contrast product, test result is as shown in table 1.
Table 1 the performance test results
As can be seen from the test result of table 1, the solar cell backing of embodiment 1-3 provided by the invention is high without layering, puncture voltage, without variable color, there is excellent weatherability, and the compound by adopting chemically composited technology to realize basic unit and tack coat, make solar-electricity pool insulation backing of the present invention to the good barrier property of steam, water vapor transmittance is low.More be better than adopting physics complex technique to carry out the solar-electricity pool insulation backing of compound.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a solar-electricity pool insulation backing, is characterized in that: described solar-electricity pool insulation backing comprises fluorine-containing rete, adhesive layer, basic unit, tack coat from top to bottom successively, is formed with plasma grafting processing layer between described basic unit and tack coat.
2. solar-electricity pool insulation backing according to claim 1, is characterized in that: described tack coat is any one or several compositions in fluorine-containing alloy resin, mylar or acrylic resin.
3. solar-electricity pool insulation backing according to claim 2, is characterized in that: described fluorine-containing alloy resin is any one or several compositions in tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer, chlorotrifluoroethylene-vinyl ether co-polymer or chlorotrifluoroethylene-vinyl ester copolymer.
4. solar-electricity pool insulation backing according to claim 1, is characterized in that: described plasma grafting processing layer is-OH hydroxyl ,-COOH carboxyl ,-NH
2the graft copolymer that any one or several chemical groups in amino ,-CO carbonyl and siloxanes or silane are formed.
5. solar-electricity pool insulation backing according to claim 4, is characterized in that: described siloxanes is any one in Allyl Siloxane, vinylsiloxane, flucride siloxane.
6. solar-electricity pool insulation backing according to claim 1, is characterized in that: the thickness of described solar-electricity pool insulation backing is 100 μm ~ 450 μm; Described adhesive layer thickness is 5 μm ~ 25 μm; Described plasma grafting processing layer thickness is 0.001 μm ~ 10 μm.
7. a processing technology for solar-electricity pool insulation backing, is characterized in that: comprise the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, then under 20 DEG C ~ 150 DEG C conditions, carry out Microwave Treatment or heat treated 6 ~ 15 minutes, form adhesive linkage, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer;
Step 3: the surface-coated adhesive not carrying out plasma treatment or corona treatment in basic unit, is compounded in adhesive surface by fluorine-containing rete, and under 35 DEG C ~ 70 DEG C conditions, slaking 30 ~ 60 hours, forms fluorine-containing rete and adhesive layer.
8. a processing technology for solar-electricity pool insulation backing, is characterized in that: comprise the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the surface-coated adhesive not carrying out plasma treatment or corona treatment in basic unit, is compounded in adhesive surface by fluorine-containing rete, and under 35 DEG C ~ 70 DEG C conditions, slaking 30 ~ 60 hours, forms fluorine-containing rete and adhesive layer;
Step 3: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, then under 20 DEG C ~ 150 DEG C conditions, carry out Microwave Treatment or heat treated 6 ~ 15 minutes, form adhesive linkage, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer.
9. a processing technology for solar-electricity pool insulation backing, is characterized in that: comprise the following steps:
Step one: carry out plasma treatment or corona treatment on arbitrary surface of basic unit;
Step 2: the substrate surface any one or several compositions in fluorine-containing alloy resin, mylar, acrylic resin being compounded in plasma treatment or corona treatment, do not carry out the surface-coated adhesive of plasma treatment or corona treatment in basic unit simultaneously, fluorine film is compounded in adhesive surface, then under 20 DEG C ~ 150 DEG C conditions, Microwave Treatment or the process 6 ~ 15 minutes that is heating and curing first is carried out, form tack coat, there is molecular migration ,-OH the hydroxyl in basic unit ,-COOH carboxyl ,-NH between basic unit and tack coat simultaneously
2one or more chemical groups in amino ,-CO carbonyl and the siloxanes in tack coat or silane generation chemical graft react and form plasma grafting processing layer; Simultaneously forming adhesive layer and fluorine-containing rete in addition; Slaking 30 ~ 60 hours under 35 DEG C ~ 70 DEG C conditions again, makes each layer solidify further, composition solar-electricity pool insulation backing.
10. the processing technology of a kind of solar-electricity pool insulation backing according to any one of claim 7-9, is characterized in that: carry out plasma treatment or corona treatment at the non-bonding plane of tack coat of described solar-electricity pool insulation backing.
11. 1 kinds of solar modules, described solar module comprises the photic zone, encapsulant, cell piece, encapsulant and the solar-electricity pool insulation backing that stack gradually, it is characterized in that: described solar-electricity pool insulation backing is the solar-electricity pool insulation backing described in any one of claim 1 ~ 6.
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