CN109367146A - A kind of extra-weather-proof protecting solar cell film and preparation method thereof - Google Patents

A kind of extra-weather-proof protecting solar cell film and preparation method thereof Download PDF

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CN109367146A
CN109367146A CN201810998512.XA CN201810998512A CN109367146A CN 109367146 A CN109367146 A CN 109367146A CN 201810998512 A CN201810998512 A CN 201810998512A CN 109367146 A CN109367146 A CN 109367146A
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parts
layer
copolymer
weather
extra
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顾方明
王佩刚
罗树林
刘会举
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Shaoxing Fu Fu New Material Co Ltd
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Shaoxing Fu Fu New Material Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • B32B27/08Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • H01L31/0481Encapsulation of modules characterised by the composition of the encapsulation material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/71Resistive to light or to UV
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/724Permeability to gases, adsorption
    • B32B2307/7242Non-permeable
    • B32B2307/7246Water vapor barrier
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/73Hydrophobic
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Condensed Matter Physics & Semiconductors (AREA)
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Abstract

The present invention provides a kind of extra-weather-proof protecting solar cell film and preparation method thereof; there are obvious excellent uvioresistant, hydrothermal aging ability; there is significant water vapor rejection ability and oxygen obstruction ability simultaneously, can more efficiently extend the service life of solar battery.Outer protective layer includes fluoropolymer, ultraviolet-resistant agent, antioxidant system, other function auxiliary agent;Middle support layer includes at least one of both Kynoar and its copolymer, modifier, inorganic filler, ultraviolet absorber, antioxidant system, other function auxiliary agent;Internal layer adhesive layer includes at least one of both Kynoar and its copolymer, modifier, compatilizer, antioxidant system, other function auxiliary agent.The particle for obtaining three layers after mixing, double-screw extruding pelletizing, baking step respectively, is finally respectively placed in the feeding funnel of three layers of extruder, and three-layer co-extruded blow molding or casting technique the preparation extra-weather-proof protecting solar cell film are passed through.

Description

A kind of extra-weather-proof protecting solar cell film and preparation method thereof
Technical field
The present invention relates to a kind of extra-weather-proof protecting solar cell films and preparation method thereof.
Background technique
Solar power generation is pollution-free with its, sustainable, total amount is big, distribution is wide, using it is various informative the advantages that constitute too Important component in positive energy energy strategy.The encouragement energetically of national governments was worldwide obtained in recent years, was won It obtained considerable and developed by leaps and bounds.A kind of the solar battery as new energy, with conventional thermal power generation or other new Energy such as wind-powered electricity generation, water power, nuclear power etc. is compared, and to keep its competitive advantage, then must embody its distinguished cost performance Duration benign development can be obtained.For this purpose, the manufacturer and operator of each component part of solar battery do one's utmost Carry out innovation research so that the cost performance of solar battery operation is continuously improved in ground.
Semiconductor solar cell --- crystal silicon solar batteries one in solar battery kind, based on element silicon Directly in occupation of leading position.Crystal silicon solar batteries are primarily configured as being led by high transparency foreboard, encapsulating film, silver paste or aluminium paste These materials are passed through heating by the laminated construction that the multilayered structures such as line, polycrystalline or monocrystalline silicon piece, encapsulating film and battery back-sheet are formed The mode of lamination forms, and after sealing joint strip and frame assembling, mixing terminal box can be obtained crystal silicon solar batteries component. Wherein, it is the key point for determining battery cost performance, and steam and oxygen that can the crystal silicon chip as " heart " efficiently run for a long time Gas is then crystal silicon chip " fatal killer ".The main function of the backboard of one of important component as crystal silicon battery is to use In protecting and supporting cell piece under the diversified open-air conditions such as ultraviolet light, dust storm, sleet, high/low temperature, still it is able to maintain good Good luck row, it is necessary to have outstanding resistance ultraviolet irradiation, dust storm erosion, moisture attacks, aggressive oxygen energy.Moreover, big compression ring Ultraviolet light irradiation, dust storm, sleet, high/low temperature in border etc. are not self-existent, therefore in common product development process In cannot illustrate the quality of properties of product using simple independent test.It needs in a variety of conditions and deposit in the case where can expire Sufficient requirement can more steadily guarantee properties of product.
Traditional solar energy backboard membrane is the composite membrane of " TPT ", " KPK " or " TPE " sandwich structure currently on the market, Middle T layers be Du Pont Tedlar film, P layers be PET modifier film, K layers be Acker Ma Kynar film, E layers are that polyolefin is thin Film.The major function of the fluorine material of outer layer is to prevent the effect of ultraviolet light, and P layers with excellent mechanical stability and good Barrier property, T or K layers with the powerful guarantee that P layers of synergistic effect is that solar energy backboard can be used for a long time outdoors, but by It has passed through modification in T layers or K layers, the oxygen ability that actually blocks water is well below its theoretical duty, and P layers of hydrolytic resistance ratio It is poor, eventually lead to the service life requirement that backboard is relatively inaccessible to 25 years.
On the other hand, global climate has diversity, if one kind area in China is such as Tibet, Hainan etc., as height Its aging speed of the conventional backing plate of molecular material composition is significantly larger than two classes, three classes area.This is because, polymer material is in purple Outside line, high temperature wet heat condition coexist down, can rapidly occur chemical structure change, so as to cause its physical property it is quick under Drop, the speed that structure changes are far longer than single condition.Therefore, as protective film vital in solar battery, back Can the correctness of plate cladding material selection be the key that guarantee battery life.And judge the important technology of the Protective coatings Index includes mainly uvioresistant ability, moisture-resistant thermal energy power, water vapor rejection ability and oxygen obstruction ability, especially at a variety of Part coexist under integration capability.The selection of protecting solar cell film should select suitable material according to the amblent air temperature of each department Material is only the reliability solution of high performance-price ratio.
Patent CN101932443B discloses a kind of three layers of PVDF thin film for photovoltaic cell, has A/B/C structure, Outermost layer and innermost layer use pure PVDF or its copolymer as cortex, and middle layer uses PVDF modifier.It is using the structure Since PVDF itself has excellent uvioresistant performance and water vapor rejection performance, it is thus possible to play one to backboard middle layer of PET Fixed protective effect.But the transmission of ultraviolet light can not be prevented as the PVDF of cortex or its copolymer itself, with the time Extension ultraviolet light inevitably still can damage effect to the modifier component in middle layer, cause boundary layer point From, and ultimately cause hidden danger.
Patent CN106585010A discloses a kind of photovoltaic back PVDF thin film of double-layer coextrusion, and cortex uses PVDF + PMMA+TiO2+ antioxidant system+ultraviolet absorber composed structure, using the photovoltaic back PVDF of the structure and conventional monolayers Film is not significantly improved, and since the variation of chemical structure can occur under ultraviolet irradiation for PMMA ingredient itself therein, Further across the damp and hot experience of high temperature, it will further speed up material degradation, finally cause failure risk.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and it is reasonable super resistance to provide a kind of design Protecting solar cell film and preparation method thereof is waited, there is obvious excellent uvioresistant, hydrothermal aging ability, while being had significant Water vapor rejection ability and oxygen obstruction ability can more efficiently extend the service life of solar battery.
Technical solution used by the present invention solves the above problems is: a kind of extra-weather-proof protecting solar cell film, by outer To it is interior include outer protective layer, middle support layer and internal layer adhesive layer, it is characterised in that: each layer component includes: in parts by weight
Outer protective layer: 77-99 parts of fluoropolymer, 1-10 parts of ultraviolet-resistant agent, 0-2 parts of antioxidant system, other function auxiliary agent 0-1 parts;
Middle support layer: 30-80 parts of at least one of both Kynoar and its copolymer, 0-30 parts of modifier, inorganic 3-30 parts of filler, 0-3 parts of ultraviolet absorber, 0-2 parts of antioxidant system, 0-10 parts of other function auxiliary agent;
Internal layer adhesive layer: 50-99 parts of at least one of both Kynoar and its copolymer, 0-30 parts of modifier, compatible 0-5 parts of agent, 0-2 parts of antioxidant system, 0-5 parts of other function auxiliary agent.
In middle support layer of the present invention, the modifier is polymethyl methacrylate, polybutylene terephthalate At least one kind of in ester, inorganic filler is titanium dioxide, zinc oxide, zinc sulphide, barium sulfate, talcum powder, montmorillonite, mica, carbonic acid It is at least one kind of in calcium, silica, and Particle size requirements control, in 0.1um-10um, ultraviolet absorber is benzophenone class, benzotriazole At least one kind of in class, triazines, other function auxiliary agent is acid absorbent, compatilizer, hydrolysis agent, at least one kind of in toughener.
In outer protective layer of the present invention, middle support layer and internal layer adhesive layer, antioxidant system is Hinered phenols, phosphite ester It is at least one kind of in class, organic tin.
In internal layer adhesive layer of the present invention, modifier is polymethyl methacrylate, in polybutylene terephthalate (PBT) It is at least one kind of.
In outer protective layer of the present invention, the fluoropolymer includes that polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoro propyl are complete At least one kind of and Kynoar and its copolymer in fluorovinyl-ether copolymer, tetrafluoraoethylene-hexafluoropropylene copolymer At least one of the two, wherein polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoro propyl perfluorovinylether copolymer, tetrafluoroethene- At least one kind of shared number in hexafluoropropylene copolymer is 0.1-5 parts.
In outer protective layer of the present invention, ultraviolet-resistant agent is titanium dioxide, zinc oxide, zinc sulphide, the barium sulfate of inorganic, or Benzophenone class, benzotriazole, the triazines of organic, various types of ultraviolet-resistant agent can be used independently or be used simultaneously;Its His function additive is acid absorbent, flow ability modifying agent, at least one kind of in light stabilizer.
In outer protective layer of the present invention, middle support layer and internal layer adhesive layer, the polyvinylidene fluoride copolymer is inclined The copolymer of vinyl fluoride and hexafluoropropene, the copolymer of vinylidene and chlorotrifluoroethylene, vinylidene and tetrafluoroethene and six The terpolymer of fluoropropene, the copolymer of vinylidene and tetrafluoropropene, vinylidene and trifluoro-ethylene copolymer in It is at least one kind of.
Acid absorbent of the present invention is MgO, nano-ZnO, hydrotalcite, sodium acetate or epoxide;It is described compatible Agent is acrylic block copolymer, including acrylic acid or acrylic acid alkyl C1-C4 esters polymer, methacrylic acid or methyl Two kinds in acrylic acid alkyl C1-C4 esters polymer, ethylacrylic acid or ethyl propylene dialkylaminobenzoic acid C1-C4 esters polymer or The block copolymer of two or more formation.
In internal layer adhesive layer of the present invention, other function auxiliary agent is at least one kind of in hydrolysis agent and toughener.
The weight average molecular weight of at least one of both Kynoar of the present invention and its copolymer is 100,000-100 ten thousand.
A kind of preparation method of extra-weather-proof protecting solar cell film, it is characterised in that: outer layer is weighed according to formula respectively The material of protective layer, middle support layer and internal layer adhesive layer obtains after mixing, double-screw extruding pelletizing, baking step respectively The particle for obtaining outer protective layer, middle support layer, internal layer adhesive layer, is finally respectively placed in the feeding funnel of three layers of extruder In, pass through three-layer co-extruded blow molding or casting technique the preparation extra-weather-proof protecting solar cell film.
Compared with prior art, the present invention having the following advantages that and effect:
Compared with the fluorine film that existing market is generallyd use, the present invention has more excellent uvioresistant moisture-resistant thermal energy power, has More excellent water vapor rejection ability and oxygen obstruction ability, can make more efficiently to protect internal layer PET, further more added with Effect ground protection crystal silicon chip, assigns the relatively reliable performance of backboard, so that solar battery is more applicable for harsh environment or more prolongs Its long service life, has boundless market application prospect.
Specific embodiment
Below by embodiment, the present invention is described in further detail, following embodiment be explanation of the invention and The invention is not limited to following embodiments.
A kind of extra-weather-proof protecting solar cell film includes that outer protective layer, middle support layer and internal layer are viscous from outside to inside Layer is tied, outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, and each layer component is in parts by weight Include:
One, outer protective layer: 77-99 parts of fluoropolymer, preferably at 85-98 parts;1-10 parts of ultraviolet-resistant agent, preferably in 4-10 Part;0-2 parts of antioxidant system, preferably at 0.5-1.5 parts;0-1 parts of other function auxiliary agent;Without containing in ultraviolet, high temperature and humidity condition Under easily cause the PMMA and its modifier of material degradation.
Fluoropolymer includes polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoro propyl perfluorovinylether copolymer, tetrafluoro second At least one of at least one kind of and both Kynoar and its copolymer in alkene-hexafluoropropylene copolymer;Wherein gather Tetrafluoroethene, tetrafluoroethylene-perfluoro propyl perfluorovinylether copolymer, at least 1 in tetrafluoraoethylene-hexafluoropropylene copolymer Kind of shared number is 0.1-5 part, preferably 0.5-4 part, further preferably 1-3 parts, other compositions for Kynoar with At least one of both its copolymers.Polyvinylidene fluoride copolymer is copolymer, the inclined fluorine second of vinylidene and hexafluoropropene The terpolymer of alkene and the copolymer of chlorotrifluoroethylene, vinylidene and tetrafluoroethene and hexafluoropropene, vinylidene and four At least one kind of in the copolymer of the copolymer of fluoropropene, vinylidene and trifluoro-ethylene, weight average molecular weight is 100,000-100 ten thousand, Further preferably 200,000-50 ten thousand.
Ultraviolet-resistant agent is titanium dioxide, zinc oxide, zinc sulphide, barium sulfate or the benzophenone class of organic, benzo of inorganic Triazole type, triazines preferably such as UV531, UV234, UV1577, various types of ultraviolet-resistant agent can be used independently or simultaneously It uses.
Antioxidant system is Hinered phenols, phosphorous acid esters, at least one kind of in organic tin.
Other function auxiliary agent includes acid absorbent, flow ability modifying agent, at least one kind of in light stabilizer.
Two, middle support layer: 30-80 parts of at least one of both Kynoar and its copolymer, preferably in 50-70 Part;0-30 parts of modifier, preferably at 10-25 parts;3-30 parts of inorganic filler, preferably at 10-20 parts;0-3 parts of ultraviolet absorber;It is anti- 0-2 parts of oxygen system;0-10 parts of other function auxiliary agent;
Polyvinylidene fluoride copolymer is the copolymerization of the copolymer, vinylidene and chlorotrifluoroethylene of vinylidene and hexafluoropropene The terpolymer of object, vinylidene and tetrafluoroethene and hexafluoropropene, the copolymer of vinylidene and tetrafluoropropene, inclined fluorine second At least one kind of in the copolymer of alkene and trifluoro-ethylene, weight average molecular weight is 100,000-100 ten thousand, further preferably 200,000-50 ten thousand.
Modifier is polymethyl methacrylate, at least one kind of in polybutylene terephthalate (PBT).
Inorganic filler is titanium dioxide, zinc oxide, zinc sulphide, barium sulfate, talcum powder, montmorillonite, mica, calcium carbonate, dioxy It is at least one kind of in SiClx, and Particle size requirements control is preferably controlled in 0.2um-5um in 0.1um-10um.
Ultraviolet absorber is benzophenone class, benzotriazole, at least one kind of in triazines.
Antioxidant system is Hinered phenols, phosphorous acid esters, at least one kind of in organic tin.
Other function auxiliary agent is acid absorbent, compatilizer, hydrolysis agent, at least one kind of in toughener.Acid absorbent is MgO, receives Rice ZnO, sodium acetate or epoxide, the compatilizer are acrylic block copolymer, including acrylic acid or third Olefin(e) acid alkyl C1-C4 esters polymer, methacrylic acid or methacrylate C1-C4 esters polymer, ethylacrylic acid Or two or more block copolymer formed in ethyl propylene dialkylaminobenzoic acid C1-C4 esters polymer.
Three, internal layer adhesive layer: 50-99 parts of at least one of both Kynoar and its copolymer, preferably in 70-95 Part, further preferably at 85-95 parts;0-30 parts of modifier, preferably at 10-25 parts;0-5 parts of compatilizer;0-2 parts of antioxidant system, 0-5 parts of other function auxiliary agent.
Polyvinylidene fluoride copolymer is being total to for the copolymer of vinylidene and hexafluoropropene, vinylidene and chlorotrifluoroethylene The terpolymer of polymers, vinylidene and tetrafluoroethene and hexafluoropropene, the copolymer of vinylidene and tetrafluoropropene, inclined fluorine It is at least one kind of in the copolymer of ethylene and trifluoro-ethylene.
Modifier is polymethyl methacrylate, at least one kind of in polybutylene terephthalate (PBT).
Compatilizer is modifier of the polar functional group to polyolefin-acrylates class.
Antioxidant system is Hinered phenols, phosphorous acid esters, at least one kind of in organic tin.
Other function auxiliary agent is at least one kind of in hydrolysis agent and toughener.
Outer protective layer mainly provides barrier and resists the effect of ultraviolet light, water vapour erosion;Middle support layer mainly mentions For mechanics strength support, the erosion of reduction ultraviolet light and water vapour, light reflectivity is further increased;Internal layer adhesive layer provide with The effect of PET cohesive force.
The extra-weather-proof protecting solar cell film three-decker overall thickness can be adjusted arbitrarily, and general control is excellent in 5-100um It is selected in 10-50um, further preferably in 20-35um;Wherein outer protective layer thickness is not less than 2um, further preferably in 4- 20um;Middle support layer thickness is in 2-80um, preferably in 10-90um, further preferably in 15-30um;Internal layer adhesive layer thickness In 1-90um, preferably in 3-20um, further preferably in 5-15um.
In outer protective layer, middle support layer and internal layer adhesive layer, the specific number of each component may be set to affiliated range Interior any integer or the number for being accurate to one decimal place.
A kind of preparation method of extra-weather-proof protecting solar cell film, it is characterised in that: outer layer is weighed according to formula respectively The material of protective layer, middle support layer and internal layer adhesive layer obtains after mixing, double-screw extruding pelletizing, baking step respectively The particle for obtaining outer protective layer, middle support layer, internal layer adhesive layer, is finally respectively placed in the feeding funnel of three layers of extruder In, pass through the three-layer co-extruded blow molding process preparation extra-weather-proof protecting solar cell film.
Embodiment 1:
A kind of extra-weather-proof protecting solar cell film, from outside to inside include outer protective layer, middle support layer and internal layer adhesive layer, Outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, wherein each layer component is in parts by weight Include:
Outer protective layer: 90 parts of Kynoar, 6 parts of nanometer titanium dioxide, 3 parts of polytetrafluoroethylene (PTFE), 0.5 part of antioxidant system, light is steady Determine 0.5 part of agent.
Middle support layer: 52 parts of Kynoar, 27 parts of polybutylene terephthalate (PBT), 10 parts of nano grade titanium white powder, 5 parts of toughener, 2 parts of antioxidant system, 2 parts of compatilizer, 1 part of acid absorbent, 1 part of hydrolysis agent.
Internal layer adhesive layer: 80 parts of Kynoar, 10 parts of polybutylene terephthalate (PBT), 3 parts of toughener, compatilizer 4 Part, 2 parts of antioxidant system, 1 part of hydrolysis agent.
A kind of preparation method of extra-weather-proof protecting solar cell film, steps are as follows:
The material of outer protective layer, middle support layer and internal layer adhesive layer is weighed respectively according to formula, respectively by mixing, double spiral shells The particle that outer protective layer, middle support layer, internal layer adhesive layer are obtained after bar extruding pelletization, baking step, is finally distinguished It is placed in the feeding funnel of three layers of extruder, extra-weather-proof protecting solar cell film is prepared by three-layer co-extruded blow molding process, Middle outer protective layer, middle support layer, internal layer adhesive layer thickness be respectively 5um, 20um, 5um, three-layer co-extruded composite membrane it is total Body thickness is 30 um.
Embodiment 2:
A kind of extra-weather-proof protecting solar cell film, from outside to inside include outer protective layer, middle support layer and internal layer adhesive layer, Outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, wherein each layer component is in parts by weight Include:
Outer protective layer: 89 parts of Kynoar, 7 parts of nanoscale zinc oxide, tetrafluoroethylene-perfluoro propyl perfluoroalkyl vinyl ether 2 parts of copolymer, 1 part of antioxidant system, 0.5 part of light stabilizer, 0.5 part of acid absorbent.
Middle support layer: 50 parts of Kynoar, 25 parts of polymethyl methacrylate, 10 parts of nano grade titanium white powder, toughening 5 parts of agent, 2 parts of antioxidant system, 2 parts of compatilizer, 2 parts of nanoscale montmorillonite, 1 part of acid absorbent, then additionally add 3 parts of ACR lubricant.
Internal layer adhesive layer: 90 parts of Kynoar, 10 parts of polymethyl methacrylate.
A kind of preparation method of extra-weather-proof protecting solar cell film, steps are as follows:
The material of outer protective layer, middle support layer, internal layer adhesive layer is weighed respectively according to formula, respectively by mixing, double spiral shells The particle that outer protective layer, middle support layer, internal layer adhesive layer are obtained after bar extruding pelletization, baking step, is finally distinguished It is placed in the feeding funnel of three layers of extruder, extra-weather-proof protecting solar cell film is prepared by three-layer co-extruded blow molding process, Middle outer protective layer, middle support layer, internal layer adhesive layer thickness be respectively 8um, 17um, 5um, three-layer co-extruded composite membrane it is total Body thickness is 30 um.
Embodiment 3:
A kind of extra-weather-proof protecting solar cell film, from outside to inside include outer protective layer, middle support layer and internal layer adhesive layer, Outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, wherein each layer component is in parts by weight Include:
Outer protective layer: poly- 90 parts of (biasfluoroethylene-hexafluoropropylene) copolymer, 7 parts of nano grade titanium white powder, tetrafluoroethene-hexafluoro 2 parts of propylene copolymer, 0.5 part of antioxidant system, 0.5 part of light stabilizer.
Middle support layer: 50 parts of Kynoar, 27 parts of polybutylene terephthalate (PBT) (PBT), nano grade titanium white powder 12 parts, 5 parts of toughener, 0.5 part of antioxidant system, 3 parts of compatilizer, 0.5 part of acid absorbent, 1.5 parts of hydrolysis agent.
Internal layer adhesive layer: 75 parts of Kynoar, 19 parts of polybutylene terephthalate (PBT), 2 parts of toughener, compatilizer 2 Part, 1 part of antioxidant system, 1 part of hydrolysis agent.
A kind of preparation method of extra-weather-proof protecting solar cell film, steps are as follows:
The material of outer protective layer, middle support layer, internal layer adhesive layer is weighed respectively according to formula, respectively by mixing, double spiral shells The particle that outer protective layer, middle support layer, internal layer adhesive layer are obtained after bar extruding pelletization, baking step, is finally distinguished It is placed in the feeding funnel of three layers of extruder, extra-weather-proof protecting solar cell film is prepared by three-layer co-extruded blow molding process, Middle outer protective layer, middle support layer, internal layer adhesive layer thickness be respectively 10um, 15um, 5um, three-layer co-extruded composite membrane General thickness is 30 um.
Embodiment 4:
A kind of extra-weather-proof protecting solar cell film, from outside to inside include outer protective layer, middle support layer and internal layer adhesive layer, Outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, wherein each layer component is in parts by weight Include:
Outer protective layer: 90 parts of Kynoar, 2 parts of polytetrafluoroethylene (PTFE), 7 parts of nanoscale zinc sulphide, 1 part of antioxidant system.
Middle support layer: 80 parts of Kynoar, 12 parts of nanometer titanium dioxide, 3 parts of toughener, 3 parts of flow ability modifying agent, antioxygen 2 parts of system.
Internal layer adhesive layer: 75 parts of Kynoar, 20 parts of polybutylene terephthalate (PBT), 2 parts of toughener, compatilizer 2 Part, 1 part of antioxidant system.
A kind of preparation method of extra-weather-proof protecting solar cell film, steps are as follows:
The material of outer protective layer, middle support layer, internal layer adhesive layer is weighed respectively according to formula, respectively by mixing, double spiral shells The particle that outer protective layer, middle support layer, internal layer adhesive layer are obtained after bar extruding pelletization, baking step, is finally distinguished It is placed in the feeding funnel of three layers of extruder, extra-weather-proof protecting solar cell film is prepared by three-layer co-extruded blow molding process, Middle outer protective layer, middle support layer, internal layer adhesive layer thickness be respectively 10um, 15um, 5um, three-layer co-extruded composite membrane General thickness is 30 um.
Comparative example (contains PMMA):
A kind of extra-weather-proof protecting solar cell film, from outside to inside include outer protective layer, middle support layer and internal layer adhesive layer, Outer protective layer and middle support layer are fixed, and middle support layer and internal layer adhesive layer are fixed, wherein each layer component is in parts by weight Include:
Outer protective layer: 72 parts of Kynoar, 10 parts of polymethyl methacrylate (PMMA), 10 parts of nanometer titanium dioxide, toughening 4 parts of agent, 2 parts of lubricant, 0.4 part of antioxidant system, 0.6 part of light stabilizer, 1 part of acid absorbent.
Middle support layer: 52 parts of Kynoar, 25 parts of polymethyl methacrylate, 10 parts of nanometer titanium dioxide, toughener 5 Part, 2 parts of antioxidant system, 2 parts of compatilizer, 1 part of acid absorbent, 3 parts of ACR lubricant.
Internal layer adhesive layer: Kynoar 80,10 parts of polymethyl methacrylate, 10 parts of nanometer titanium dioxide.
A kind of preparation method of extra-weather-proof protecting solar cell film, steps are as follows:
The material of outer protective layer, middle support layer, internal layer adhesive layer is weighed respectively according to formula, respectively by mixing, double spiral shells The particle that outer protective layer, middle support layer, internal layer adhesive layer are obtained after bar extruding pelletization, baking step, is finally distinguished It is placed in the feeding funnel of three layers of extruder, extra-weather-proof protecting solar cell film is prepared by three-layer co-extruded blow molding process, Middle outer protective layer, middle support layer, internal layer adhesive layer thickness be respectively 8um, 17um, 5um, three-layer co-extruded composite membrane it is total Body thickness is 30 μm.
The performance of the extra-weather-proof protecting solar cell film of the present invention and commercially available single layer polyvinylidene difluoride film and contain PMMA When contrast test result it is as follows:
Illustrate that made membrane of the present invention has excellent resistance to UV aging, moisture-resistant heat ageing according to the performance test results above Performance and water vapor rejection performance and oxygen barrier property.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims Range defined in book, is within the scope of protection of the invention.

Claims (10)

1. a kind of extra-weather-proof protecting solar cell film includes outer protective layer, middle support layer and internal layer bonding from outside to inside Layer, it is characterised in that: each layer component includes: in parts by weight
Outer protective layer: 77-99 parts of fluoropolymer, 1-10 parts of ultraviolet-resistant agent, 0-2 parts of antioxidant system, other function auxiliary agent 0-1 parts;
Middle support layer: 30-80 parts of at least one of both Kynoar and its copolymer, 0-30 parts of modifier, inorganic 3-30 parts of filler, 0-3 parts of ultraviolet absorber, 0-2 parts of antioxidant system, 0-10 parts of other function auxiliary agent;
Internal layer adhesive layer: 50-99 parts of at least one of both Kynoar and its copolymer, 0-30 parts of modifier, compatible 0-5 parts of agent, 0-2 parts of antioxidant system, 0-5 parts of other function auxiliary agent.
2. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: described in middle support layer Modifier be polymethyl methacrylate, it is at least one kind of in polybutylene terephthalate (PBT), inorganic filler be titanium dioxide, It is zinc oxide, zinc sulphide, barium sulfate, talcum powder, montmorillonite, mica, calcium carbonate, at least one kind of in silica, and Particle size requirements In 0.1um-10um, ultraviolet absorber is benzophenone class, benzotriazole, at least one kind of, the other function auxiliary agent in triazines for control It is at least one kind of in acid absorbent, compatilizer, hydrolysis agent, toughener.
3. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: outer protective layer, intermediate branch It supports in layer and internal layer adhesive layer, antioxidant system is Hinered phenols, phosphorous acid esters, at least one kind of in organic tin.
4. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: modified in internal layer adhesive layer Object is polymethyl methacrylate, at least one kind of in polybutylene terephthalate (PBT).
5. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: described in outer protective layer Fluoropolymer include polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoro propyl perfluorovinylether copolymer, tetrafluoroethene-hexafluoro At least one of at least one kind of and both Kynoar and its copolymer in propylene copolymer, wherein polytetrafluoroethyl-ne It is alkene, tetrafluoroethylene-perfluoro propyl perfluorovinylether copolymer, at least one kind of shared in tetrafluoraoethylene-hexafluoropropylene copolymer Number be 0.1-5 parts.
6. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: ultraviolet in outer protective layer Barrier is benzophenone class, benzotriazole, the triazine of the titanium dioxide of inorganic, zinc oxide, zinc sulphide, barium sulfate or organic Class, various types of ultraviolet-resistant agent can be used independently or be used simultaneously;Other function auxiliary agent be acid absorbent, flow ability modifying agent, It is at least one kind of in light stabilizer.
7. extra-weather-proof protecting solar cell film according to claim 5, it is characterised in that: outer protective layer, intermediate branch It supports in layer and internal layer adhesive layer, the polyvinylidene fluoride copolymer is copolymer, the inclined fluorine second of vinylidene and hexafluoropropene The terpolymer of alkene and the copolymer of chlorotrifluoroethylene, vinylidene and tetrafluoroethene and hexafluoropropene, vinylidene and four It is at least one kind of in the copolymer of the copolymer of fluoropropene, vinylidene and trifluoro-ethylene.
8. extra-weather-proof protecting solar cell film according to claim 2, it is characterised in that: the acid absorbent be MgO, Nano-ZnO, hydrotalcite, sodium acetate or epoxide;The compatilizer is acrylic block copolymer, including acrylic acid Or acrylic acid alkyl C1-C4 esters polymer, methacrylic acid or methacrylate C1-C4 esters polymer, ethyl third Two or more block copolymer formed in olefin(e) acid or ethyl propylene dialkylaminobenzoic acid C1-C4 esters polymer.
9. extra-weather-proof protecting solar cell film according to claim 1, it is characterised in that: in internal layer adhesive layer, other Function additive is at least one kind of in hydrolysis agent and toughener.
10. a kind of preparation method of extra-weather-proof protecting solar cell film described in -9 any claims according to claim 1, It is characterized by: the material of outer protective layer, middle support layer and internal layer adhesive layer is weighed respectively according to formula, respectively through overmulling The particle of outer protective layer, middle support layer, internal layer adhesive layer is obtained after conjunction, double-screw extruding pelletizing, baking step, finally will In its feeding funnel for being respectively placed in three layers of extruder, by three-layer co-extruded blow molding or casting technique preparation it is described it is extra-weather-proof too Positive energy battery protection film.
CN201810998512.XA 2018-08-29 2018-08-29 A kind of extra-weather-proof protecting solar cell film and preparation method thereof Pending CN109367146A (en)

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CN114591579A (en) * 2022-03-23 2022-06-07 临海伟星新型建材有限公司 Weather-resistant drainage pipeline with multilayer structure and preparation method thereof

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Application publication date: 20190222