CN102765235B - Novel solar battery backboard - Google Patents
Novel solar battery backboard Download PDFInfo
- Publication number
- CN102765235B CN102765235B CN201210261126.5A CN201210261126A CN102765235B CN 102765235 B CN102765235 B CN 102765235B CN 201210261126 A CN201210261126 A CN 201210261126A CN 102765235 B CN102765235 B CN 102765235B
- Authority
- CN
- China
- Prior art keywords
- parts
- solar cell
- weight
- cell backboard
- copolymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a novel solar battery backboard. The novel solar battery backboard comprises a weather resistant layer, a bonding layer and an insulation layer bonded in sequence, wherein the weather resistant layer consists of the following components by weight: 40-80 parts of fluorine-containing polymer, 5-30 parts of acrylic acid polymer, 5-20 parts of inorganic filler and 5-15 parts of maleic anhydride grafted ethylene-vinyl acetate copolymer; and the insulation layer consists of the following components by weight: 70-90 parts of polyethylene glycol terephthalate, 1-20 parts of polytetrafluoroethylene micro-powder and 5-20 parts of uvioresistant additive. The novel solar battery backboard is novel in structure, easily available in material and low in cost; and the interlayer bonding strength is enhanced, the weather resistance is improved and the service life of a solar assembly is prolonged.
Description
Technical field
The present invention relates to solar-energy photo-voltaic cell technical field, particularly a kind of solar cell backboard.
Background technology
Solar cell backboard is also referred to as solar cell backboard film, photovoltaic back, photovoltaic back film, solar energy backboard.Solar cell backboard is the assembly that is widely used in solar cell (photovoltaic), is positioned at the back side of solar panel, and cell piece is played to protection and supporting role, has reliable insulating properties, water preventing ability, resistance to ag(e)ing.Backboard membrane is divided into two kinds: a kind of for applying backboard membrane, and at PETG (PET) polyester film coated on both sides fluororesin, drying film-forming.Be a gluing combined-type backing plate film, at the compound fluorine film in PET polyester film two sides or EVA glued membrane, between trilamellar membrane, by suitable binding agent bonding, common are the structures such as TPT, TPE, KPK.In TPT structure, T refers to the Tedlar film of E.I.Du Pont Company, and composition is polyvinyl fluoride (PVF), and P refers to PETG (PET) film, so TPT refers to PVF/PET/PVF structure.The typical production Shang Wei Isovolta company of the backboard of TPT structure.Wherein the Main Function of PVF film is weather-proof, only has E.I.Du Pont Company to produce, and holds at high price.In order to save cost, meet the needs of each solar product, towards the PVF of cell piece layer, can be substituted by other weaker plastics of weatherability, Given this, the backboard of TPE structure has been invented by the Medico company of the U.S., wherein E refers to ethylene-vinyl acetate (EVA), so TPE refers to PVF/PET/EVA structure.3M company adopts hexafluoropropylene (HFP)/tetrafluoroethylene (TFE)-vinylidene (THV) as weathering layer, and its back board structure is THV/PET/EVA.Also have in addition company to adopt ethylene-chlorotrifluoro-ethylene copolymer (ECTFE), ethylene-tetrafluoroethylene copolymer (ETFE) as back veneer material, all with three-decker form, occur.
Because fluoroplastics surface can be low, except PVF and THV are the kind of relatively easily bonding, other fluoroplastics are very difficult to bonding, use other fluorine film as the solar energy backboard of weathering layer in use, be easy to occur layering, jaundice and cracking phenomena, have a strong impact on the service life of solar cell.Therefore develop a kind of simple in structure, cheap and weather-proof, water, solar energy backboard that vapour locking separating performance is good becomes the large demand of industry one.
Chinese patent notification number CN101582458B, January 26 2011 Granted publication day, denomination of invention: solar cell backboard.This invention relates to a kind of novel solar battery backboard, comprise bonding successively weathering layer, the first adhesive linkage, structural reinforcing layer, the second adhesive linkage and bonding reflecting layer, weathering layer is inorganic material-modified polyvinylidene fluoride alloy layer, bonding reflecting layer is white polyethylene layer, preferably, polyvinylidene fluoride alloy layer is the plastic alloy alloy-layer of Kynoar and inorganic material, thickness 4～40 μ m, white polyethylene layer is in polyethylene, to be mixed with inorganic Chinese white, the plastic alloy layer of uvioresistant stabilizing agent and thermo oxidative aging stabilizing agent, thickness is 10～300 μ m, structural reinforcing layer is PETG layer, the first adhesive linkage and described the second adhesive linkage can be polyurethane glue-lines, a kind of in acrylate glue-line or epoxy adhesive layer, thickness is 1 μ m～30 μ m.Material of the present invention is easy to get, and cost reduces greatly, and weak point is complex structure, and properties of product are unstable, and preparation process is loaded down with trivial details.
China Patent Publication No. CN102157591A, open day on August 17th, 2011, denomination of invention: a kind of solar cell backboard and preparation method thereof.This application case discloses a kind of solar cell backboard and preparation method thereof.The solar energy backboard of this invention has three strata compound retes, comprises top-down bonding weathering layer, bonding enhancement layer and the wet layer of bonding resistance.Bonding weathering layer is PVDF/EVA alloy-layer, and bonding enhancement layer is PET/PMMA alloy-layer, and the wet layer of bonding resistance is PVDF/PVB alloy-layer.Preparation method is the method that adopts multilayered molten coextrusion, realizes fusing without interface between three retes, and composite membrane need to reach good dimensional stability through online high-temperature shaping.The solar cell backboard of this invention only has three-decker, and without using adhesive linkage, preparation technology is simple, saved the step of gluing, hot pressing, weak point is that interlaminar bonding performance is unstable, and thickness is difficult to control, and between each layer, shrinkage factor difference can cause composite membrane size unstable.
Summary of the invention
The present invention has overcome the defect of prior art, and a kind of solar energy backboard of simple in structure, cheap, function admirable is provided.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of solar cell backboard, comprise weathering layer, tack coat and the insulating barrier of bonding successively, by weight, described weathering layer is composed of the following components: 40～80 parts of fluoropolymers, 5～30 parts of acrylic polymers, 5～20 parts of inorganic fillers, 5～15 parts of maleated ethylene vinyl acetate copolymes; Described insulating barrier is composed of the following components: 70～90 parts of PETGs, 1～20 part of ptfe micropowder, 5～20 parts of uvioresistant additives.
Further:
Described fluoropolymer is a kind of in fluoride homopolymer, vinylidene homopolymerization or copolymer, CTFE homopolymerization or copolymer, TFE copolymer.
Described fluoropolymer is a kind of in polyvinyl fluoride, Kynoar, vinylidene-hexafluoropropylene copolymer, polytrifluorochloroethylene, ethene-chlorotrifluoroethylene, ethene-TFE copolymer, tetrafluoroethene-perfluoro propyl vinyl ether copolymer, tetrafluoraoethylene-hexafluoropropylene copolymer.
In described weathering layer, acrylic polymer is selected from a kind of in polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate and polycyclohexyl methacrylate.
In described weathering layer, inorganic filler is selected from a kind of in kaolin, glass micro mist, barium sulfate, titanium dioxide and zinc oxide.
In described weathering layer, in maleated ethylene vinyl acetate copolyme, ethene accounts for 40% of weight, and vinylacetate accounts for 60% of weight.
In described insulating barrier, ptfe micropowder particle diameter is 1～20um, and number-average molecular weight is 1～30,000.
In described insulating barrier, uvioresistant additive is selected from a kind of in silica, titanium dioxide and glass microballoon.
Described tack coat is ethylene-vinyl acetate copolymer adhesive layer or epoxy resin adhesive layer.
Described weathering layer thickness is 10～40um, and adhesive layer thickness is 10～50um, and thickness of insulating layer is 200～300um.
Solar energy backboard of the present invention is comprised of the weathering layer boning successively, tack coat and insulating barrier.By maleated ethylene vinyl acetate copolyme, weathering layer is carried out to modification, promote the compatibility with tack coat, improved the adhesion strength of weathering layer and tack coat.Insulating barrier, by ptfe micropowder modification, has improved weatherability and anti-uv-ray on the basis that possesses good insulation properties and mechanical performance simultaneously.
Fluoropolymer in the present invention can be selected from a kind of in fluoride homopolymer, vinylidene homopolymerization or copolymer, CTFE homopolymerization or copolymer, TFE copolymer, preferably a kind of in polyvinyl fluoride, Kynoar, vinylidene-hexafluoropropylene copolymer, polytrifluorochloroethylene, ethene-chlorotrifluoroethylene, ethene-TFE copolymer, tetrafluoroethene-perfluoro propyl vinyl ether copolymer, tetrafluoraoethylene-hexafluoropropylene copolymer.
Acrylic polymer is because containing carbonyl side group, and form chemical interactions between fluoropolymer carbon hydrogen bond group, there is good compatibility, can reduce crystallization and the melt temperature of fluoropolymer simultaneously, improve crystalline texture, be conducive to the reduction of melt strength and the flow casting molding of fluoro-containing copolymer film, play the effect of plasticizer.Acrylic polymer can be used methacrylic polymer, preferably a kind of in polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate and polycyclohexyl methacrylate.If acrylic polymer adds very little in fluoropolymer, do not have plasticization, be unfavorable for film forming, addition is too large, will affect chemical-resistant stability and the heat resistance of fluoro-containing copolymer film, so in the present invention, the parts by weight of acrylic polymer are 5～30 parts.
The ethylene-vinyl acetate copolymer of maleic anhydride graft has hydrocarbon key and carbon-oxygen bond, Chang Zuowei bulking agent is used, added in weathering layer, chemical action between fluoropolymer, acrylic polymer generation chemical bond easily and in weathering layer, and with ethene=vinyl acetate co-polymer in tack coat or the intermolecular formation Chemical bonding of epoxy resin, can promote the compatibility between weathering layer and tack coat, improve adhesion strength.If maleated ethylene vinyl acetate copolyme adds too much, can affect mechanical property and the weatherability of weathering layer, if add, just do not have very little compatibilization effect, so in the present invention, the parts by weight of maleated ethylene vinyl acetate copolyme are 5～15 parts.
Ptfe micropowder is the low-molecular-weight white micro mist that polytetrafluoroethylene (PTFE) processes through special process, because there being the molecular structure of stabilizer pole, has excellent chemical resistance, heat endurance, weatherability and temperature tolerance.It not only keeps the good characteristic of polytetrafluoroethylene (PTFE), but also has good dispersion, can with the even blend of other materials, base material serviceability is obviously improved.If ptfe micropowder addition is too large, can cause ptfe micropowder in PETG, to produce agglomeration, apparent and physical property on pet film has impact, if add very little, little on the weatherability of insulating barrier and anti-uv-ray impact, therefore, in insulating barrier of the present invention, the parts by weight of ptfe micropowder are 1～20 part, particle diameter is 1～20 μ m, and number-average molecular weight is 1～30,000.
Inorganic filler, due to volume steric effect, produces shielding and buffer action to the strand in polymeric matrix, thereby slackens intermolecular force, and then improve polymer flow and processing characteristics.Inorganic filler can be selected basalt fibre powder, kaolin, glass micro mist, barium sulfate, titanium dioxide and zinc oxide, preferably a kind of in kaolin, glass micro mist, barium sulfate, titanium dioxide and zinc oxide.The parts by weight of the inorganic filler in the present invention in weathering layer are 5～20 parts.
Uvioresistant additive is due to special chemical constitution, self good optical property and physics, chemical stability have been given, there is the effect of higher refraction coefficient and stronger reflected sunlight, in polymer, form fine and close reflecting layer, reduce the destruction of sunshine to polymer internal structure.Uvioresistant additive can be selected calcium carbonate, silica, titanium dioxide, kaolin, talcum powder and glass microballoon, preferably a kind of in silica, titanium dioxide and glass microballoon.The parts by weight of the uvioresistant additive in the present invention in insulating barrier are 5～20 parts.
Solar cell backboard preparation method of the present invention: first by formula, weathering layer raw material is made to fluoro-containing copolymer film through extruder fusion extrusion casting, then by formula, insulating barrier raw material is melt extruded through extruder, biaxial tension makes pet film, then weathering layer fluoro-containing copolymer film and insulating barrier pet film are carried out to sided corona treatment; On pet film, be coated with again afterwards tack coat, then to carry out hot pressing compound with weathering layer fluoro-containing copolymer film, and be cured, obtain solar energy rear panel compound film.
Advantage of the present invention is:
1, by maleated ethylene vinyl acetate copolyme, weathering layer is carried out to modification, strengthen bond strength between layers;
2, insulating barrier is by ptfe micropowder modification, improved weatherability and anti-uv-ray possessing on good insulation properties and mechanical performance basis, ensured the service life of solar components;
3, backboard of the present invention is comprised of weathering layer, tack coat and insulating barrier, novel structure, and material is easy to get, and cost is low.
The specific embodiment
By the following examples the present invention is carried out to more specific description, but the present invention is not limited to described embodiment.
The present invention's product used all can commercially availablely be obtained, wherein:
Kynoar (PVDF):
france Arkema.
Vinylidene fluoride-hexafluoropropylene copolymer: 11010, French Su Wei company.
Polyvinyl fluoride (PVF): F40, du pont company.
Polytrifluorochloroethylene (PCTFE): M-400H, Daikin company.
Ethylene-chlorotrifluoro-ethylene copolymer (ECTFE): 300LC, U.S. Su Wei.
Ethylene-tetrafluoroethylene copolymer (ETFE): C-88AXP, Japan AGC company.
Tetrafluoraoethylene-hexafluoropropylene copolymer (FEP): FJP-810, Juhua Group Co..
Tetrafluoroethene-perfluoro propyl vinyl ether copolymer: 340, Dupont.
Polymethyl methacrylate (PMMA): V150, Atofina.
Polyethyl methacrylate (PEMA): normal viscosity (being dissolved in 25 ℃ of toluene, solid powder 30%) 7500cps.
Titanium dioxide (TiO
2): R706, du pont company.
Barium sulfate (BaSO
4): granularity: 1250 orders, Shanghai Gao Quan Chemical Co., Ltd..
Zinc oxide (ZnO): model, 99.7, Shanghai Gao Quan Chemical Co., Ltd..
Maleated ethylene vinyl acetate copolyme: self-control, by weight, ethene accounts for 40%, and vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%.The preparation process of maleated ethylene vinyl acetate copolyme is as follows: commercially available maleic anhydride 3～4kg is dissolved in acetone, again with 100kg ethylene-vinyl acetate copolymer (by weight, ethene accounts for 40%, vinylacetate accounts for 60%) at high-speed mixer, mix, after acetone volatilization, again through double screw extruder 100～150 ℃ of granulations, finally by electron accelerator electron ray or
60radiation 10～25KGy dosage in the gamma-rays of Co source, obtains the ethylene-vinyl acetate copolymer of the maleic anhydride graft of percent grafting 1.5%.
PETG (PET): Beijing Heng Yezhongyuan Chemical Co., Ltd..
Ptfe micropowder (PTFE): TF-9207, particle diameter 1～20um, number-average molecular weight 1～30,000, Minnesota Mining and Manufacturing Company.
Glass microballoon: VS5500,3M company.
Silica (SiO
2): 3000 orders, Shanghai Gao Quan Chemical Co., Ltd..
Embodiment 1:
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 10um, by weight, it consists of: 80 parts of Kynoar, 5 parts of polymethyl methacrylates, 5 parts of titanium dioxide, (by weight, ethene accounts for 40% for 10 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 200um, and by weight, it is composed as follows: 85 parts of PETGs, 10 parts of ptfe micropowders, 5 parts of glass microballoons;
Tack coat: the ethylene-vinyl acetate copolymer adhesive that thickness is 10um, by weight, it is composed as follows: ethene accounts for 40%, and vinylacetate accounts for 60%.
Embodiment 2
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 40um, by weight, it is composed as follows: 70 parts of ethylene-tetrafluoroethylene copolymers (ETFE), 10 parts of polymethyl methacrylates, 5 parts, barium sulfate, (by weight, ethene accounts for 40% for 15 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 250um, and by weight, it is composed as follows: 90 parts of PETGs, 5 parts of ptfe micropowders, 5 parts of titanium dioxide.
Tack coat: the epoxy resin adhesive that thickness is 30um.
Embodiment 3
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 20um, by weight, it is composed as follows: 65 parts of vinylidene fluoride-hexafluoropropylene copolymers, 20 parts of polyethyl methacrylates, 8 parts of titanium dioxide, (by weight, ethene accounts for 40% for 7 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 270um, and by weight, it is composed as follows: 75 parts of PETGs, 15 parts of ptfe micropowders, 10 parts of glass microballoons.
Tack coat: the ethylene-vinyl acetate copolymer adhesive that thickness is 20um, by weight, it is composed as follows: ethene accounts for 40%, and vinylacetate accounts for 60%.
Embodiment 4
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 30um, by weight, it is composed as follows: 55 parts of polyvinyl fluorides (PVF), 30 parts of polymethyl methacrylates, 10 parts, zinc oxide, (by weight, ethene accounts for 40% for 5 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 300um, and by weight, it is composed as follows: 70 parts of PETGs, 20 parts of ptfe micropowders, 0 part of silica 1.
Tack coat: the epoxy resin adhesive that thickness is 40um.
Embodiment 5
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 30um, by weight, it is composed as follows: 55 parts of polytrifluorochloroethylene (PCTFE), 25 parts of polyethyl methacrylates, 15 parts of titanium dioxide, (by weight, ethene accounts for 40% for 5 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 270um, and by weight, it is composed as follows: 83 parts of PETGs, 7 parts of ptfe micropowders, 10 parts of titanium dioxide.
Tack coat: the epoxy resin adhesive that thickness is 30um.
Embodiment 6
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 25um, by weight, it is composed as follows: 40 parts of ethylene-chlorotrifluoro-ethylene copolymers (ECTFE), 30 parts of polymethyl methacrylates, 20 parts of titanium dioxide, (by weight, ethene accounts for 40% for 10 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 300um, and by weight, it is composed as follows: 89 parts of PETGs, 1 part of ptfe micropowder, 0 part of silica 1.
Tack coat: the glutinous agent of ethylene-vinyl acetate copolymer that thickness is 50um, by weight, it is composed as follows: ethene accounts for 40%, and vinylacetate accounts for 60%.
Embodiment 7
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 40um, by weight, it is composed as follows: 50 parts of tetrafluoraoethylene-hexafluoropropylene copolymers (FEP), 20 parts of polyethyl methacrylates, 15 parts of titanium dioxide, (by weight, ethene accounts for 40% for 15 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 240um, and by weight, it is composed as follows: 70 parts of PETGs, 10 parts of ptfe micropowders, 20 parts of titanium dioxide.
Tack coat: the glutinous agent of ethylene-vinyl acetate copolymer that thickness is 25um, by weight, it is composed as follows: ethene accounts for 40%, and vinylacetate accounts for 60%.
Embodiment 8
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 20um, by weight, it is composed as follows: 50 parts of tetrafluoroethene-perfluoro propyl vinyl ether copolymers, 30 parts of polymethyl methacrylates, 10 parts of titanium dioxide, (by weight, ethene accounts for 40% for 10 parts of maleated ethylene vinyl acetate copolymes, vinylacetate accounts for 60%, and the percent grafting of maleic anhydride is 1.5%).
Insulating barrier: thickness is 250um, and by weight, it is composed as follows: 80 parts of PETGs, 5 parts of ptfe micropowders, 5 parts of silica 1s.
Tack coat: the epoxy resin adhesive that thickness is 40um.
Comparative example 1
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 10um, and by weight, it is composed as follows: 90 parts of Kynoar (PVDF), 5 parts of polymethyl methacrylates, 5 parts of titanium dioxide.
Insulating barrier: thickness is 200um, and by weight, it is composed as follows: 85 parts of PETGs, 10 parts of ptfe micropowders, 5 parts of glass microballoons;
Tack coat: the ethylene-vinyl acetate copolymer adhesive that thickness is 10um, by weight, it is composed as follows: ethene accounts for 40%, and vinylacetate accounts for 60%.
Comparative example 2
Solar cell backboard comprises the layer of resistance to marquis, tack coat, insulating barrier, and wherein insulating barrier is combined by tack coat between weathering layer.
Weathering layer: thickness is 40um, and by weight, it is composed as follows: 70 parts of ethylene-tetrafluoroethylene copolymers (ETFE), 10 parts of polymethyl methacrylates, 5 parts, barium sulfate, 15 parts of maleated ethylene vinyl acetate copolymes.
Insulating barrier: thickness is 250um, and by weight, it is composed as follows: 95 parts of PETGs, 5 parts of titanium dioxide.
Tack coat: the epoxy resin adhesive that thickness is 30um.
The solar energy backboard that embodiment 1～8 and comparative example 1～2 are made carries out peel strength test and weatherability test between weathering layer and insulating barrier.Wherein, the method for testing of interlaminar strength is tested according to ASTM D1876 standard; Weatherability test condition is: under the condition that 85 ℃ of temperature and humidity are 85%, be incubated 1000h, observe and have or not jaundice to change.Result is as follows:
Claims (10)
1. a solar cell backboard, comprise weathering layer, tack coat and the insulating barrier of bonding successively, it is characterized in that by weight, described weathering layer is composed of the following components: 40～80 parts of fluoropolymers, 5～30 parts of acrylic polymers, 5～20 parts of inorganic fillers, 5～15 parts of maleated ethylene vinyl acetate copolymes; Described insulating barrier is composed of the following components: 70～90 parts of PETGs, 1～20 part of ptfe micropowder, 5～20 parts of uvioresistant additives.
2. solar cell backboard according to claim 1, is characterized in that, described fluoropolymer is a kind of in fluoride homopolymer, vinylidene homopolymerization or copolymer, CTFE homopolymerization or copolymer, TFE copolymer.
3. solar cell backboard according to claim 2, it is characterized in that, described fluoropolymer is a kind of in polyvinyl fluoride, Kynoar, vinylidene-hexafluoropropylene copolymer, polytrifluorochloroethylene, ethene-chlorotrifluoroethylene, ethene-TFE copolymer, tetrafluoroethene-perfluoro propyl vinyl ether copolymer, tetrafluoraoethylene-hexafluoropropylene copolymer.
4. solar cell backboard according to claim 1, it is characterized in that, in described weathering layer, acrylic polymer is selected from a kind of in polymethyl methacrylate, polyethyl methacrylate, polybutyl methacrylate and polycyclohexyl methacrylate.
5. solar cell backboard according to claim 1, is characterized in that, in described weathering layer, inorganic filler is selected from a kind of in kaolin, glass micro mist, barium sulfate, titanium dioxide and zinc oxide.
6. solar cell backboard according to claim 1, is characterized in that, in described weathering layer, in maleated ethylene vinyl acetate copolyme, ethene accounts for 40% of weight, and vinylacetate accounts for 60% of weight.
7. solar cell backboard according to claim 1, is characterized in that, in described insulating barrier, ptfe micropowder particle diameter is 1～20um, and number-average molecular weight is 1～30,000.
8. solar cell backboard according to claim 1, is characterized in that, in described insulating barrier, uvioresistant additive is selected from a kind of in silica, titanium dioxide and glass microballoon.
9. solar cell backboard according to claim 1, is characterized in that described tack coat is ethylene-vinyl acetate copolymer adhesive layer or epoxy resin adhesive layer.
10. solar cell backboard according to claim 1, is characterized in that described weathering layer thickness is 10～40um, and adhesive layer thickness is 10～50um, and thickness of insulating layer is 200～300um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261126.5A CN102765235B (en) | 2012-07-26 | 2012-07-26 | Novel solar battery backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210261126.5A CN102765235B (en) | 2012-07-26 | 2012-07-26 | Novel solar battery backboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102765235A CN102765235A (en) | 2012-11-07 |
| CN102765235B true CN102765235B (en) | 2014-10-08 |
Family
ID=47092905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210261126.5A Active CN102765235B (en) | 2012-07-26 | 2012-07-26 | Novel solar battery backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102765235B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969383B (en) * | 2012-12-07 | 2015-12-02 | 上海海优威新材料股份有限公司 | The solar cell backboard of three-decker |
| CN104884527A (en) * | 2012-12-27 | 2015-09-02 | 旭硝子株式会社 | Blend polymer containing ethylene/tetrafluoroethylene copolymer, molded body of said blend polymer, back sheet for solar cells, and method for producing said molded body |
| CN103612449A (en) * | 2013-11-15 | 2014-03-05 | 英利能源（中国）有限公司 | Insulating luminescent material, solar battery back plate comprising insulating luminescent material, and solar battery component |
| CN103681920B (en) * | 2013-12-14 | 2017-01-04 | 宁波华丰包装有限公司 | A kind of solar cell backboard and manufacture method thereof |
| CN104356615A (en) * | 2014-11-14 | 2015-02-18 | 无锡中洁能源技术有限公司 | Preparation method of modified PET (polyethylene terephthalate) substrate for solar backboard |
| CN104371285B (en) * | 2014-11-14 | 2016-06-08 | 无锡中洁能源技术有限公司 | A kind of high temperature resistant light aging resisting solar cell backboard film and preparation method thereof |
| CN105237924B (en) * | 2015-09-01 | 2018-01-02 | 北京铂阳顶荣光伏科技有限公司 | A kind of preparation method and applications of polytetrafluoroethylmodified modified film suitable for protecting solar cell film |
| CN105949973A (en) * | 2016-05-19 | 2016-09-21 | 安徽德润工艺品有限公司 | Anti-aging paint special for bamboo-woven lacquer boxes |
| EP3472241A1 (en) * | 2016-06-20 | 2019-04-24 | 3M Innovative Properties Company | Self-priming adhesive |
| CN106057942A (en) * | 2016-07-25 | 2016-10-26 | 无锡中洁能源技术有限公司 | Novel solar energy backboard structure |
| CN109817739A (en) * | 2017-11-16 | 2019-05-28 | 宁波长阳科技股份有限公司 | A kind of solar cell backboard polyester film |
| CN108346709A (en) * | 2018-01-11 | 2018-07-31 | 中天科技精密材料有限公司 | A kind of functionalization polyvinylidene difluoride film of double-layer coextrusion and its preparation method of photovoltaic cell backplane |
| CN109192800B (en) * | 2018-07-15 | 2020-04-14 | 浙江歌瑞新材料有限公司 | Fluorine-containing thin-film solar cell front film and manufacturing process thereof |
| CN109206822A (en) * | 2018-09-06 | 2019-01-15 | 常州斯威克光伏新材料有限公司 | Black EVA material for solar cell module encapsulation |
| CN109449232A (en) * | 2018-11-14 | 2019-03-08 | 安徽兆拓新能源科技有限公司 | A kind of photovoltaic back and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992571A (en) * | 2010-09-02 | 2011-03-30 | 常熟市冠日新材料有限公司 | Insulation backboard for solar photovoltaic module |
| CN102416740A (en) * | 2011-08-31 | 2012-04-18 | 佛山佛塑科技集团股份有限公司 | Back plate film of solar cell |
| CN102476492A (en) * | 2010-11-26 | 2012-05-30 | 比亚迪股份有限公司 | Solar cell rear panel, preparation method for same and solar cell module |
| CN102544152A (en) * | 2011-12-31 | 2012-07-04 | 升信新材（北京）科技有限公司 | Solar battery back panel and preparation method therefor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2618431B2 (en) * | 1988-04-13 | 1997-06-11 | 電気化学工業株式会社 | Fluorine resin-based weatherproof film |
-
2012
- 2012-07-26 CN CN201210261126.5A patent/CN102765235B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992571A (en) * | 2010-09-02 | 2011-03-30 | 常熟市冠日新材料有限公司 | Insulation backboard for solar photovoltaic module |
| CN102476492A (en) * | 2010-11-26 | 2012-05-30 | 比亚迪股份有限公司 | Solar cell rear panel, preparation method for same and solar cell module |
| CN102416740A (en) * | 2011-08-31 | 2012-04-18 | 佛山佛塑科技集团股份有限公司 | Back plate film of solar cell |
| CN102544152A (en) * | 2011-12-31 | 2012-07-04 | 升信新材（北京）科技有限公司 | Solar battery back panel and preparation method therefor |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-262133A 1989.10.19 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102765235A (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102765235B (en) | Novel solar battery backboard | |
| CN102157591B (en) | Back panel of solar cell and preparation method thereof | |
| KR101780925B1 (en) | Photovoltaic modules having a polyvinylidene fluoride backsheet | |
| CN108198884B (en) | Damp-heat resistant solar cell back plate and manufacturing method thereof | |
| CN102922843B (en) | Solar cell back panel film with high bonding strength and preparation method thereof | |
| JP5571582B2 (en) | Three-layer film for solar cells | |
| CN102632668B (en) | Solar battery encapsulating film and preparation method thereof | |
| TWI489644B (en) | Resin composition, multi-layered film and photovoltaic module including the same | |
| CN103921519B (en) | A kind of solar cell backboard film and preparation method thereof | |
| CN103214770B (en) | Solar cell encapsulating film and preparation method thereof | |
| CN102820356A (en) | Rear panel composite membrane for solar cell | |
| CN102983193A (en) | High-cohesiveness solar battery rear panel film and production method thereof | |
| CN107240617A (en) | A kind of compound high water vapor rejection solar cell backboard film and preparation method thereof | |
| CN103280479A (en) | Novel fluoride-free multilayer coextrusion solar cell back plate and preparation method thereof | |
| CN103208549B (en) | Back membrane material of solar cell module | |
| CN102476492A (en) | Solar cell rear panel, preparation method for same and solar cell module | |
| CN102867872A (en) | POE-containing solar cell back panel and preparation method thereof | |
| CN107757028A (en) | Multilayer film and optical-electric module | |
| CN103730531B (en) | A kind of humidity-resisting solar cell backplate without adhesive and manufacture method thereof | |
| CN103715288A (en) | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof | |
| KR101831901B1 (en) | Multi layer film having improved weatherability and preparation method thereof | |
| KR101889082B1 (en) | Multi layer film having improved weatherability and preparation method thereof | |
| CN112133779A (en) | Novel substrate for transparent photovoltaic module backboard and corresponding backboard | |
| KR101762337B1 (en) | Polymer film, film for protecting photovoltaic panel and photovoltaic apparatus comprising same | |
| CN116144284B (en) | Raw material package, integrated adhesive film backboard, preparation method of integrated adhesive film backboard and photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230920 Address after: Room 102, Building 1, No. 43 Bailing South Road, Quzhou City, Zhejiang Province, 324000 Patentee after: Zhejiang Juhe New Energy Co.,Ltd. Address before: 324022 No. seven Donggang Road, Kecheng Industrial Park, Quzhou, Zhejiang, 118 Patentee before: Zhejiang Green New Materials Co.,Ltd. |
|
| TR01 | Transfer of patent right |