CN109860322A - Five-layer structure co-extrusion solar cell backboard containing PBT and preparation method thereof - Google Patents
Five-layer structure co-extrusion solar cell backboard containing PBT and preparation method thereof Download PDFInfo
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Abstract
The present invention discloses a kind of five-layer structure co-extrusion solar cell backboard and preparation method thereof containing PBT, belongs to solar cell backboard technical field.It includes outer weathering layer, outer adhesive layer, substrate layer, interior adhesive layer and interior weathering layer, and outer weathering layer and substrate layer are fixed together by outer adhesive layer, and substrate layer and interior weathering layer are fixed together by interior adhesive layer；Layers of material is melted in different runners using coextrusion process and converges simultaneously direct extrusion molding by the present invention, and operating procedure is simple, is not readily separated and falls off between adhesive layer.Preparation method of the present invention can not only simplify processing technology, and prepared backboard also has good weatherability, mechanical performance and long-time stability, while organic solvent, environment-friendly and green are not used in preparation process.
Description
Technical field
The invention belongs to solar cell backboard fields, and in particular to a kind of five-layer structure co-extrusion solar-electricity containing PBT
Pond backboard and preparation method thereof.
Background technique
In recent years due to the exhaustion of Global Environmental Problems and fossil fuel, solar energy is as a kind of cleanliness without any pollution, resource
The most abundant renewable energy and get more and more people's extensive concerning.Solar battery is solar energy can be converted into electric energy
Efficient apparatus.Solar battery is under long-term outdoor wind and weather, the erosion environment of the natural causes such as ultraviolet light, solar energy
Battery back-sheet should use the backboard with excellent weatherability and durability, convenient for protection solar battery, extend its use
Service life.
The solar cell backboard of existing market mainstream has five-layer structure, and outer layer, which uses, has excellent weather resistance and anti-ring
The rodent fluorine material in border；Middle layer select polyethylene terephthalate (PET), for improve backboard insulating properties and
Mechanical property；Internal layer is fluorine material or polyolefin layer.Backboard production technology at this stage needs first to apply substrate layer surface side
Cover polyurethane or EVA bonding agent, after its solidification drying after, then to its other side coat bonding agent after it is compound with other film layers, it is whole
A complex process, the operation cycle is long, and pollutes environment with the volatilization of organic solvent in process of production.In addition, layers cementing
Layer is vulnerable under atmospheric environment for a long time, causes interlaminar separation and falls off, and solar cell backboard is made to lose protective effect.Comparison
Under, polybutylene terephthalate (PBT) (PBT) resin has crystallization rate fast, and heat-resist, water vapor barrier property is good, and size is steady
The advantages that qualitative good, dielectric strength is high, is of concern with plastics as engineering all the time, be widely used in automobile component,
Electric and electronic industry, two carbon atoms, strand are submissiveer more than PET in monomer structure, it is easier to crystallize.
For applicant in the Chinese patent application No. is 201810805948.2, it is modified polyvinilidene fluorine second that interior weathering layer, which is arranged,
Alkene layer or modified poly ethylene layer, but Kynoar price is higher, and as this pressure of drop of enterprise increases, industry gradually will too
Positive energy each layer of backboard is thinning, and when middle layer reduces thickness, continuing to use the backboard that polyethylene is internal layer will cause photovoltaic module
Shelf depreciation be not able to satisfy the requirement of larger system voltage, general components demand is only adapted to, for the photovoltaic of larger system
There are security risks for component.
Summary of the invention
The five-layer structure co-extrusion containing PBT that it is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of
Solar cell backboard and preparation method thereof simplifies processing process using melting coextrusion process molding, can guarantee to produce
While product excellent properties, enhance the cementability between each layer, be less prone to layering or fall off, guarantees solar cell backboard
Long-term weatherability；Using modified polypropene as co-extrusion backboard internal layer, the partial discharge performance of product is improved, can be resistant to bigger
System voltage can be used in the photovoltaic module of larger system.
To achieve the above object of the invention, the technical solution adopted by the present invention is that:
A kind of five-layer structure co-extrusion solar cell backboard containing PBT, including outer weathering layer, outer adhesive layer, substrate layer, interior bonding
Layer and interior weathering layer, outer weathering layer and substrate layer are fixed together by outer adhesive layer, and substrate layer and interior weathering layer are glued by interior
Layer is connect to be fixed together；
The outer weathering layer is modified polyvinilidene fluoride layer, in parts by weight includes 60-75 parts of Kynoar, 5-10 parts of nanometers
Grade filler, 0.5-3.5 parts of flow ability modifying agents, A, 0.1-2 parts of 10-20 parts of reinforced resins, 5-10 parts of inorganic fillers heat stabilizers；
The outer adhesive layer be acrylate-glycidyl ester copolymer layer, ethylene-vinyl acetate copolymer or
It is any in polyurethane；
The substrate layer is modified polybutylene terephthalate (PBT) layer, in parts by weight includes 50-90 parts of poly terephthalic acids
Butanediol ester, 5-30 part nanometer titanium dioxide, 5-40 parts of toughener, 0.1-2 parts of antioxidant A；
It is sweet that the interior adhesive layer is acrylate-glycidyl ester copolymer layer, ethylene-methyl methacrylate shrinks
It is grease copolymer layer, ethylene-vinyl acetate copolymer layer, any in layer of polyurethane；
The interior weathering layer is modified polypropene layer, in parts by weight includes 60-85 parts of polypropylene, 1-10 parts of inorganic fillers B, 3-
5 parts of titanium dioxides, B, 0.1-1 parts of light stabilizers of 0.1-1 parts of antioxidant, 0.1-5 parts of lubricants.
In outer adhesive layer of the present invention and interior adhesive layer, the acrylate is methyl acrylate, ethyl acrylate, third
Olefin(e) acid butyl ester, Isooctyl acrylate monomer, methyl methacrylate, ethyl methacrylate, butyl methacrylate, methacrylic acid
In dimethylaminoethyl it is any or appoint it is several.
In outer weathering layer of the present invention, the flow ability modifying agent is phthalic acid ester dimethyl ester, phthalic acid
Ester diethylester, dibutylphthalate, phthalic acid ester dihexyl, phthalic acid ester dioctyl ester, phthalic acid
Ester di-isooctyl, dicyclohexyl phthalate, triethyl phosphate, tributyl phosphate, trioctyl phosphate are any or appoint several
Combination.
In outer weathering layer of the present invention, the inorganic filler A be silica, titanium dioxide, calcium carbonate, barium sulfate,
Any one of zinc sulphide is appointed several；The nano-sized filler is nanometer grade silica and/or nanometer grade calcium carbonate.
In outer weathering layer of the present invention, the reinforced resin is acrylic resin and/or methacrylate
Resinoid.
In outer weathering layer of the present invention, the heat stabilizer be dibutyl tin dilaurate, maleic acid dioctyltin,
Bis- (butyl maleate) dibutyl tins, bis- (lauryl mercaptan) dibutyl tins, S, bis- (the thio different monooctyl ester of the Glycolic acid) dibutyl of S '-
Tin, Bis(lauroyloxy)dioctyltin, calcium stearate, magnesium stearate, lithium stearate, zinc stearate, aluminum stearate, double stearic acid
Any one of aluminium, calcium laurate, zinc laurate, ricinoleic acid calcium, 2 ethyl hexanoic acid zinc are appointed several.
In modified polybutylene terephthalate (PBT) layer of the present invention, the toughener is methyl methacrylate-fourth
Styrene terpolymer, Ethylene-butyl acrylate-glycidyl methacrylate terpolymer, maleic anhydride
It is any in grafted ethene-octene copolymer；Antioxidant A is antioxidant 1010, irgasfos 168, antioxidant 264, antioxidant
Any one of BHT, anti-oxidant DLTP.
In modified polypropene layer of the present invention, the polypropylene is that homopolypropylene, copolymer polypropylene or modification connect
It is any in branch polypropylene.
In modified polypropene layer of the present invention, the inorganic filler B is calcium carbonate, hydrotalcite, montmorillonite；Antioxidant
B is antioxidant 1010, irgasfos 168, antioxidant 264, any in antioxidant BHT, and light stabilizer is light stabilizer 770, light
It is stabilizer 292, light stabilizer 622LD, any in light stabilizer 944；Lubricant is polysiloxanes, fatty acid amide, stearic acid
Any one of calcium, paraffin.
A kind of preparation method of the five-layer structure co-extrusion solar cell backboard containing PBT, which is characterized in that specifically include down
State step:
(1) using high-speed mixer by Kynoar, nano-sized filler, flow ability modifying agent, reinforced resin, inorganic filler A and
Under thermostabilization auxiliary agent room temperature after mechanical mixture 5-10 minutes, melting extrusion granulation, extrusion temperature are carried out using double screw extruder
200-230 DEG C, screw speed 200-350rpm obtains modified polyvinilidene fluoride pellet, is used as outer weathering layer；
(2) use high-speed mixer by polybutylene terephthalate (PBT), nanometer titanium dioxide, toughener and antioxidant A in room temperature
Lower mechanical mixture is after 5-10 minutes, carries out melting extrusion granulation using double screw extruder, and 200-230 DEG C of extrusion temperature, screw rod
Revolving speed 200-350rpm obtains modified polybutylene terephthalate (PBT) pellet, is used as substrate layer；
(3) use high-speed mixer by polypropylene, inorganic filler B, titanium dioxide, antioxidant B, light stabilizer and lubricant in room temperature
Lower mechanical mixture carries out melting extrusion granulation after 5-10 minutes, using double screw extruder, 180-210 DEG C of extrusion temperature, obtains
Modified polypropene pellet is used as interior weathering layer；
(4) the obtained each layer pellet of step 1-3 is separately added into respective extruder with outer Nian Jie layered material, interior bonding layered material,
Converge in die head by respective runner after fusion plastification and be extruded into laminated film, through chill roll extruding, cooling, traction, trimming,
The five-layer structure co-extrusion solar cell backboard containing PBT is made in winding.
Compared with prior art, the present invention having the following advantages that and effect:
1, modified polybutylene terephthalate (PBT) layer is selected to be used as substrate layer, PBT crystallization rate faster, and has excellent resistance to
Hot property and husky wearability, good stability of the dimension are fallen, excellent falls husky wearability, dimensionally stable because solar cell backboard has
Property and heat resistance；
2, select modified polypropene as interior weathering layer, PP has excellent heat resistance, nonhygroscopic, light weight, has good
Electrical property, high-frequency insulation are not influenced by humidity, thus the solar cell backboard production cost prepared using the above scheme it is low,
Partial discharge performance improves while nonhygroscopic, heat-resist, can be resistant to bigger system voltage, can be used for the light of larger system
It lies prostrate in component；
3, outer adhesive layer and interior adhesive layer are copolymer layer, dissolve bonding agent without using solvent in preparation process, are also not present
The solvent in later period volatilizees, and avoids traditional preparation process to environment bring safety and environmental issue；
4, five-layer structure is combined together by way of melting co-extrusion, and adhesive layer and substrate layer, weather-proof layer surface have melting
And chemical reaction, it is bonded between each layer more secured, the thickness of adhibited layer for being less prone to traditional coating method is irregular, layering falls off
Phenomena such as, the weatherability of product is excellent, can more meet the needs of solar cell backboard product weatherability in a long time, protects
Demonstrate,prove the service efficiency of solar battery；
5, solar cell backboard is prepared using multi-layer co-extruded form, breaks through traditional preparation process, adhesive layer is avoided to be coated with
With the process of substrate layer, operating procedure is simplified, and each thickness degree of backboard, performance are controllable, it is easy to accomplish extensive, automatic
Change, the production of serialization, high production efficiency is a kind of novel solar battery backboard haveing excellent performance, which also has good
Good weatherability, mechanical performance and long-time stability, while organic solvent, environment-friendly and green are not used in preparation process.
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 five-layer structure co-extrusion solar cell backboard containing PBT, including it is outer weathering layer, outer adhesive layer, substrate layer, interior
Adhesive layer and interior weathering layer, outer weathering layer and substrate layer are fixed together by outer adhesive layer, and substrate layer and interior weathering layer pass through
Interior adhesive layer is fixed together.
Outer weathering layer is modified polyvinilidene fluoride layer, in parts by weight includes 60-75 parts of Kynoar, 5-10 parts of nanometers
Grade filler, 0.5-3.5 parts of flow ability modifying agents, A, 0.1-2 parts of 10-20 parts of reinforced resins, 5-10 parts of inorganic fillers thermostabilization auxiliary agents；
Further, any integer of the specific value of the parts by weight of Kynoar between 60-75；The weight of nano-sized filler
Any integer of the specific value of number between 5-10；The specific value of the parts by weight of flow ability modifying agent is 0.1 × A, A's
Any integer of the value range between 5-35；The specific value of the parts by weight of reinforced resin is any whole between 10-20
Number；Any integer of the specific value of the parts by weight of inorganic filler A between 5-10；The tool of the parts by weight of thermostabilization auxiliary agent
Body numerical value is 0.1 × B, any integer of the value range of B between 1-20.
Outer adhesive layer be acrylate-glycidyl ester copolymer layer, ethylene-vinyl acetate copolymer or
It is any in polyurethane.
Substrate layer is modified polybutylene terephthalate (PBT) layer, in parts by weight includes 50-90 parts of poly terephthalic acids
Butanediol ester, 5-30 part nanometer titanium dioxide, 5-40 parts of toughener, 0.1-2 parts of antioxidant A；Further, poly terephthalic acid fourth
Any integer of the specific value of the parts by weight of diol ester between 50-90；The specific number of the parts by weight of nanometer titanium dioxide
Any integer being worth between 5-30；Any integer of the specific value of the parts by weight of toughener between 5-40；Antioxidant A
Parts by weight specific value be 0.1 × C, any integer of the value range of C between 1-20.
It is sweet that interior adhesive layer is acrylate-glycidyl ester copolymer layer, ethylene-methyl methacrylate shrinks
It is grease copolymer layer, ethylene-vinyl acetate copolymer layer, any in layer of polyurethane.
Interior weathering layer is modified polypropene layer, in parts by weight includes 60-85 parts of polypropylene, 1-10 parts of inorganic fillers B, 3-
5 parts of titanium dioxides, B, 0.1-1 parts of light stabilizers of 0.1-1 parts of antioxidant, 0.1-5 parts of lubricants.Further, modified polypropene layer
In, any integer of the specific value of polyacrylic parts by weight between 60-85；The parts by weight of inorganic filler B it is specific
Any integer of the numerical value between 1-10；Any integer of the specific value of the parts by weight of titanium dioxide between 3-5；Antioxidant
The specific value of the parts by weight of B is 0.1 × G, any integer of the value range of G between 1-10；The weight of light stabilizer
The specific value of number is 0.1 × H, any integer of the value range of H between 1-10；The parts by weight of lubricant it is specific
Numerical value is 0.1 × I, any integer of the value range of I between 1-50.
Weathering layer is compared with the Chinese patent application No. is 201810805948.2 in the present invention, as shown in table 1, compared to
Kynoar, polypropylene also have price material benefit, light weight, processing performance other than the advantages of Summary describes
It is good；Compared to polyethylene, polypropylene also has excellent heat resistance, does not inhale other than the advantages of Summary describes
The advantages that damp.
1 three kinds of material property price comparison's tables of table
In outer adhesive layer and interior adhesive layer, the acrylate is selected from methyl acrylate, ethyl acrylate, butyl acrylate, third
The different monooctyl ester of olefin(e) acid, methyl methacrylate, ethyl methacrylate, butyl methacrylate, dimethylaminoethyl second
In ester it is any or appoint it is several.
In outer weathering layer, the flow ability modifying agent is phthalic acid ester dimethyl ester, phthalic acid ester diethylester, neighbour
Phthalic acid ester dibutyl ester, phthalic acid ester dihexyl, phthalic acid ester dioctyl ester, phthalic acid ester di-isooctyl,
Dicyclohexyl phthalate, triethyl phosphate, tributyl phosphate, trioctyl phosphate are any or appoint several combinations.
In outer weathering layer, the inorganic filler A is silica, in titanium dioxide, calcium carbonate, barium sulfate, zinc sulphide
It is any or appoint it is several；The nano-sized filler is nanometer grade silica and/or nanometer grade calcium carbonate.
In outer weathering layer, the reinforced resin is acrylic resin and/or methacrylate-based resin.
In outer weathering layer, the heat stabilizer is dibutyl tin dilaurate, maleic acid dioctyltin, bis- (maleic acids
Mono-n-butylester) dibutyl tin, bis- (lauryl mercaptan) dibutyl tins, S, S '-bis- (the thio different monooctyl ester of Glycolic acid) dibutyl tins, two laurels
Sour dioctyltin, calcium stearate, magnesium stearate, lithium stearate, zinc stearate, aluminum stearate, double stearic acid aluminium, lauric acid
Any one of calcium, zinc laurate, ricinoleic acid calcium, 2- zinc ethyl hexanoate are appointed several.
In modified polybutylene terephthalate (PBT) layer, the toughener is methyl methacrylate-butadiene-styrene
Terpolymer, Ethylene-butyl acrylate-glycidyl methacrylate terpolymer, maleic anhydride grafted ethene-are pungent
It is any in alkene copolymer；Antioxidant A is antioxidant 1010, irgasfos 168, antioxidant 264, antioxidant BHT, anti-oxidant DLTP
Any one of.
In modified polypropene layer, polypropylene is any in homopolypropylene, copolymer polypropylene or modified graft polypropylene.
In modified polypropene layer, inorganic filler B is calcium carbonate, hydrotalcite, montmorillonite；Antioxidant B is antioxidant 1010, resists
Oxygen agent 168, antioxidant 264, any in antioxidant BHT, light stabilizer is that light stabilizer 770, light stabilizer 292, light are stablized
It is any in agent 622LD, light stabilizer 944；Lubricant is polysiloxanes, fatty acid amide, calcium stearate, any in paraffin
Kind.
Vinyl acetate content is 35-55% in ethylene-vinyl acetate copolymer.
In modified polyvinilidene fluoride layer, the molecular weight of the Kynoar is 20-100 ten thousand.
In modified polybutylene terephthalate (PBT) layer, the inherent viscosity of the polybutylene terephthalate (PBT) is 0.5-
1.3dL/g。
Acrylate-glycidyl ester copolymer and Kynoar thermodynamic compatibility, methacrylic acid
Epoxy-functional is had in ethylene oxidic ester, and functional group reactions, therefore gained can occur with polybutylene terephthalate (PBT)
Adhesive layer externally weathering layer Kynoar and substrate layer polybutylene terephthalate (PBT) layer can play stronger bonding work
With not easily to fall off.
Since ethylene-vinyl acetate copolymer self cohesion is big, melt surface tension is small, has good adhesiveness,
Kynoar and polybutylene terephthalate (PBT) can be bonded together.
Due to containing polar group in polyurethane structural, hydrogen bond action can be generated between glued material makes bonding more
Securely.
A kind of five-layer structure co-extrusion solar cell backboard preparation method containing PBT, which is characterized in that specifically include following
Step:
(1) using high-speed mixer by Kynoar, nano-sized filler, flow ability modifying agent, reinforced resin, inorganic filler A and
Under thermostabilization auxiliary agent room temperature after mechanical mixture 5-10 minutes, melting extrusion granulation, extrusion temperature are carried out using double screw extruder
200-230 DEG C, screw speed 200-350rpm obtains modified polyvinilidene fluoride pellet, is used as outer weathering layer；
(2) use high-speed mixer by polybutylene terephthalate (PBT), nanometer titanium dioxide, toughener and antioxidant A in room temperature
Lower mechanical mixture is after 5-10 minutes, carries out melting extrusion granulation using double screw extruder, and 200-230 DEG C of extrusion temperature, screw rod
Revolving speed 200-350rpm obtains modified polybutylene terephthalate (PBT) pellet, is used as substrate layer；
(3) use high-speed mixer by polypropylene, inorganic filler B, titanium dioxide, antioxidant B, light stabilizer and lubricant in room temperature
Lower mechanical mixture carries out melting extrusion granulation after 5-10 minutes, using double screw extruder, 180-210 DEG C of extrusion temperature, obtains
Modified polypropene pellet is used as interior weathering layer；
(4) the obtained each layer pellet of step 1-3 is separately added into respective extruder with outer Nian Jie layered material, interior bonding layered material,
Converge in die head by respective runner after fusion plastification and be extruded into laminated film, through chill roll extruding, cooling, traction, trimming,
The five-layer structure co-extrusion solar cell backboard containing PBT is made in winding.
Embodiment:
Nano-sized filler is nanometer calcium carbonate in modified polyvinilidene fluoride layer formula in following embodiments, and flow ability modifying agent is adjacent benzene
Diformazan dioctyl phthalate (DOP), reinforced resin is the combination of a kind of polymethyl methacrylate resin and a kind of acrylic resin, inorganic
Filler A is titanium dioxide (TiO2), heat stabilizer is the combination of dibutyitin maleate (DBTM) and calcium stearate.Modified poly- pair
Toughener is methyl methacrylate-butadiene-styrene terpolymer, antioxidant A in benzene dicarboxylic acid butanediol ester formula
For antioxidant 1010.Inorganic filler B is calcium carbonate in modified polypropene formula, and antioxidant B is antioxidant 1010, and light stabilizer is
Light stabilizer 770, lubricant are calcium stearate.
Embodiment 1
A kind of five-layer structure co-extrusion solar cell backboard containing PBT, specific preparation process are as follows:
(1) use high-speed mixer by 75 parts of Kynoar, 5 parts of nanometer calcium carbonates, 3.5 parts of DOP, 4 parts in parts by weight
Methacrylic resin, 6 parts of acrylic resins, 5 parts of TiO2, 1 part of DBTM, 0.5 part of calcium stearate mechanical mixture 5- at normal temperature
After ten minutes, melting extrusion being carried out using double screw extruder, extrusion temperature is 200-230 DEG C, screw speed 200-350rpm,
It is granulated after extrusion and modified polyvinilidene fluoride layer pellet is made；
(2) use high-speed mixer by 50 parts of polybutylene terephthalate (PBT)s in parts by weight, 20 parts of nanometer titanium dioxides, 29
Mechanical mixture 5-10 divides at normal temperature for part methyl methacrylate-butadiene-styrene terpolymer and 1 part of antioxidant 1010
Zhong Hou carries out melting extrusion using double screw extruder, and extrusion temperature is 200-230 DEG C, screw speed 200-350rpm, is squeezed out
It is granulated afterwards and modified polybutylene terephthalate (PBT) pellet is made；
(3) using high-speed mixer by parts by weight 70 parts of copolymer polypropylene, 8 parts of calcium carbonate, 3 parts of titanium dioxides, 0.2 part it is anti-
1010,0.2 parts of oxygen agent, 770,3 parts of light stabilizer calcium stearate after mechanical mixture 5-10 minutes, is squeezed at normal temperature using twin-screw
Machine carries out melting extrusion out, and extrusion temperature is 180-210 DEG C, screw speed 180-300rpm, is granulated after extrusion and is made modified poly-
Propylene pellet；
It (4) is respectively modified polyvinilidene fluoride layer grain according to outer weathering layer, outer adhesive layer, substrate layer, interior adhesive layer, interior weathering layer
Material, glycidyl methacrylate-methylmethacrylate copolymer material, modified polybutylene terephthalate (PBT) material, second
Alkene-glycidyl methacrylate copolymer material, modified polypropene pellet, each layered material is separately added into respective extruder,
Converge in die head by respective runner after fusion plastification and be extruded into laminated film, through chill roll extruding, cooling, traction, trimming,
The five-layer structure co-extrusion solar cell backboard containing PBT is made in winding.
Embodiment 2
A kind of five-layer structure co-extrusion solar cell backboard containing PBT, specific preparation process are as follows:
(1) use high-speed mixer by 75 parts of Kynoar, 5 parts of nanometer calcium carbonates, 3.5 parts of DOP, 4 parts in parts by weight
Methacrylic resin, 6 parts of acrylic resins, 5 parts of TiO2, 1 part of DBTM, 0.5 part of calcium stearate mechanical mixture 5- at normal temperature
After ten minutes, melting extrusion being carried out using double screw extruder, extrusion temperature is 200-230 DEG C, screw speed 200-350rpm,
It is granulated after extrusion and modified polyvinilidene fluoride layer pellet is made；
(2) use high-speed mixer by 50 parts of polybutylene terephthalate (PBT)s in parts by weight, 20 parts of nanometer titanium dioxides, 29
Mechanical mixture 5-10 divides at normal temperature for part methyl methacrylate-butadiene-styrene terpolymer and 1 part of antioxidant 1010
Zhong Hou carries out melting extrusion using double screw extruder, and extrusion temperature is 200-230 DEG C, screw speed 200-350rpm, is squeezed out
It is granulated afterwards and modified polybutylene terephthalate (PBT) pellet is made；
(3) using high-speed mixer by parts by weight 70 parts of copolymer polypropylene, 8 parts of calcium carbonate, 3 parts of titanium dioxides, 0.2 part it is anti-
1010,0.2 parts of oxygen agent, 770,3 parts of light stabilizer calcium stearate after mechanical mixture 5-10 minutes, is squeezed at normal temperature using twin-screw
Machine carries out melting extrusion out, and extrusion temperature is 180-210 DEG C, screw speed 180-300rpm, is granulated after extrusion and is made modified poly-
Propylene pellet；
It (4) is respectively modified polyvinilidene fluoride layer grain according to outer weathering layer, outer adhesive layer, substrate layer, interior adhesive layer, interior weathering layer
Material, methyl methacrylate-glycidyl methacrylate copolymer material, modified polybutylene terephthalate (PBT) material, first
Base methyl acrylate-glycidyl methacrylate copolymer material, modified polypropene pellet, each layered material is separately added into respectively
In extruder, is converged in die head after fusion plastification by respective runner and be extruded into laminated film, squeezed through chill roll, is cooling,
The five-layer structure co-extrusion solar cell backboard containing PBT is made in traction, trimming, winding.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of 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 five-layer structure co-extrusion solar cell backboard containing PBT, including it is outer weathering layer, outer adhesive layer, substrate layer, interior viscous
Layer and interior weathering layer are connect, outer weathering layer and substrate layer are fixed together by outer adhesive layer, and substrate layer and interior weathering layer are in
Adhesive layer is fixed together；
The outer weathering layer is modified polyvinilidene fluoride layer, in parts by weight includes 60-75 parts of Kynoar, 5-10 parts of nanometers
Grade filler, 0.5-3.5 parts of flow ability modifying agents, A, 0.1-2 parts of 10-20 parts of reinforced resins, 5-10 parts of inorganic fillers heat stabilizers；
The outer adhesive layer be acrylate-glycidyl ester copolymer layer, ethylene-vinyl acetate copolymer or
It is any in polyurethane；
The substrate layer is modified polybutylene terephthalate (PBT) layer, in parts by weight includes 50-90 parts of poly terephthalic acids
Butanediol ester, 5-30 part nanometer titanium dioxide, 5-40 parts of toughener, 0.1-2 parts of antioxidant A；
It is sweet that the interior adhesive layer is acrylate-glycidyl ester copolymer layer, ethylene-methyl methacrylate shrinks
It is grease copolymer layer, ethylene-vinyl acetate copolymer layer, any in layer of polyurethane；
It is characterized in that,
The interior weathering layer is modified polypropene layer, in parts by weight includes 60-85 parts of polypropylene, 1-10 parts of inorganic fillers B, 3-
5 parts of titanium dioxides, B, 0.1-1 parts of light stabilizers of 0.1-1 parts of antioxidant, 0.1-5 parts of lubricants.
2. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, which is characterized in that described outer
In adhesive layer and interior adhesive layer, the acrylate is that methyl acrylate, ethyl acrylate, butyl acrylate, acrylic acid are different pungent
It is ester, methyl methacrylate, ethyl methacrylate, butyl methacrylate, any in dimethylaminoethyl methacrylate
Kind is appointed several.
3. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, which is characterized in that described outer
In weathering layer, the flow ability modifying agent is phthalic acid ester dimethyl ester, phthalic acid ester diethylester, phthalic acid ester
Dibutyl ester, phthalic acid ester dihexyl, phthalic acid ester dioctyl ester, phthalic acid ester di-isooctyl, phthalic acid
Dicyclohexyl maleate, triethyl phosphate, tributyl phosphate, trioctyl phosphate are any or appoint several combinations.
4. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described outer
In weathering layer, the inorganic filler A is any one of silica, titanium dioxide, calcium carbonate, barium sulfate, zinc sulphide or appoints
It is several；The nano-sized filler is nanometer grade silica and/or nanometer grade calcium carbonate.
5. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described outer
In weathering layer, the reinforced resin is acrylic resin and/or methacrylate-based resin.
6. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described outer
In weathering layer, the heat stabilizer is dibutyl tin dilaurate, maleic acid dioctyltin, bis- (butyl maleate) two fourths
Ji Xi, bis- (lauryl mercaptan) dibutyl tins, S, S '-bis- (the thio different monooctyl ester of Glycolic acid) dibutyl tins, tin dilaurate di-n-octyl
Tin, calcium stearate, magnesium stearate, lithium stearate, zinc stearate, aluminum stearate, double stearic acid aluminium, calcium laurate, zinc laurate,
Any one of ricinoleic acid calcium, 2- zinc ethyl hexanoate are appointed several.
7. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described to change
Property polybutylene terephthalate (PBT) layer in, the toughener be methyl methacrylate-butadiene-styrene ternary polymerization
Object, Ethylene-butyl acrylate-glycidyl methacrylate terpolymer, maleic anhydride grafted ethene-octene copolymer
In it is any；Antioxidant A is antioxidant 1010, irgasfos 168, antioxidant 264, antioxidant BHT, any in anti-oxidant DLTP
Kind.
8. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described
In modified polypropene layer, the polypropylene is any in homopolypropylene, copolymer polypropylene or modified graft polypropylene.
9. the five-layer structure co-extrusion solar cell backboard according to claim 1 containing PBT, it is characterised in that: described
In modified polypropene layer, the inorganic filler B is calcium carbonate, hydrotalcite, montmorillonite；Antioxidant B is antioxidant 1010, antioxidant
168, antioxidant 264, any in antioxidant BHT, light stabilizer is light stabilizer 770, light stabilizer 292, light stabilizer
It is any in 622LD, light stabilizer 944；Lubricant is any one of polysiloxanes, fatty acid amide, calcium stearate, paraffin.
10. the five-layer structure co-extrusion solar battery back containing PBT described in a kind of any one of -9 claims according to claim 1
The preparation method of plate, which is characterized in that specifically include the following steps:
(1) using high-speed mixer by Kynoar, nano-sized filler, flow ability modifying agent, reinforced resin, inorganic filler A and
Under thermostabilization auxiliary agent room temperature after mechanical mixture 5-10 minutes, melting extrusion granulation, extrusion temperature are carried out using double screw extruder
200-230 DEG C, screw speed 200-350rpm obtains modified polyvinilidene fluoride pellet, is used as outer weathering layer；
(2) use high-speed mixer by polybutylene terephthalate (PBT), nanometer titanium dioxide, toughener and antioxidant A in room temperature
Lower mechanical mixture is after 5-10 minutes, carries out melting extrusion granulation using double screw extruder, and 200-230 DEG C of extrusion temperature, screw rod
Revolving speed 200-350rpm obtains modified polybutylene terephthalate (PBT) pellet, is used as substrate layer；
(3) use high-speed mixer by polypropylene, inorganic filler B, titanium dioxide, antioxidant B, light stabilizer and lubricant in room temperature
Lower mechanical mixture carries out melting extrusion granulation after 5-10 minutes, using double screw extruder, 180-210 DEG C of extrusion temperature, obtains
Modified polypropene pellet is used as interior weathering layer；
(4) the obtained each layer pellet of step 1-3 is separately added into respective extruder with outer Nian Jie layered material, interior bonding layered material,
Converge in die head by respective runner after fusion plastification and be extruded into laminated film, through chill roll extruding, cooling, traction, trimming,
The five-layer structure co-extrusion solar cell backboard containing PBT is made in winding.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787794A (en) * | 2021-10-22 | 2021-12-14 | 苏州度辰新材料有限公司 | PVDF (polyvinylidene fluoride) multilayer co-extruded film for photovoltaic back plate and preparation method thereof |
| CN114122177A (en) * | 2021-11-25 | 2022-03-01 | 苏州度辰新材料有限公司 | Back plate film for photovoltaic module and preparation method thereof |
| CN114701229A (en) * | 2021-12-31 | 2022-07-05 | 浙江中聚材料有限公司 | Solar composite back plate with three-layer structure and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280475A (en) * | 2013-05-02 | 2013-09-04 | 宁波长阳科技有限公司 | Solar battery backplate and preparation method thereof |
| CN205498231U (en) * | 2016-03-01 | 2016-08-24 | 常熟市冠日新材料有限公司 | Environmental protection enhancement mode solar backplane |
| CN107151384A (en) * | 2017-05-27 | 2017-09-12 | 华中农业大学 | It is a kind of for modified poly propylene composition of solar cell backboard and preparation method thereof |
| CN108503959A (en) * | 2018-02-28 | 2018-09-07 | 乐凯胶片股份有限公司 | A kind of solar cell backboard polyolefin film |
| CN108682710A (en) * | 2018-07-20 | 2018-10-19 | 杭州福禧新材料有限公司 | A kind of five-layer structure co-extrusion solar cell backboard and preparation method thereof containing PBT |
-
2019
- 2019-01-17 CN CN201910044390.5A patent/CN109860322A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280475A (en) * | 2013-05-02 | 2013-09-04 | 宁波长阳科技有限公司 | Solar battery backplate and preparation method thereof |
| CN205498231U (en) * | 2016-03-01 | 2016-08-24 | 常熟市冠日新材料有限公司 | Environmental protection enhancement mode solar backplane |
| CN107151384A (en) * | 2017-05-27 | 2017-09-12 | 华中农业大学 | It is a kind of for modified poly propylene composition of solar cell backboard and preparation method thereof |
| CN108503959A (en) * | 2018-02-28 | 2018-09-07 | 乐凯胶片股份有限公司 | A kind of solar cell backboard polyolefin film |
| CN108682710A (en) * | 2018-07-20 | 2018-10-19 | 杭州福禧新材料有限公司 | A kind of five-layer structure co-extrusion solar cell backboard and preparation method thereof containing PBT |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787794A (en) * | 2021-10-22 | 2021-12-14 | 苏州度辰新材料有限公司 | PVDF (polyvinylidene fluoride) multilayer co-extruded film for photovoltaic back plate and preparation method thereof |
| CN114122177A (en) * | 2021-11-25 | 2022-03-01 | 苏州度辰新材料有限公司 | Back plate film for photovoltaic module and preparation method thereof |
| CN114701229A (en) * | 2021-12-31 | 2022-07-05 | 浙江中聚材料有限公司 | Solar composite back plate with three-layer structure and preparation method thereof |
| CN114701229B (en) * | 2021-12-31 | 2024-03-15 | 浙江中聚材料有限公司 | Solar composite backboard with three-layer structure and preparation method thereof |
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