CN108276665A - A kind of coextrusion type solar energy backboard and preparation method thereof - Google Patents
A kind of coextrusion type solar energy backboard and preparation method thereof Download PDFInfo
- Publication number
- CN108276665A CN108276665A CN201810019995.4A CN201810019995A CN108276665A CN 108276665 A CN108276665 A CN 108276665A CN 201810019995 A CN201810019995 A CN 201810019995A CN 108276665 A CN108276665 A CN 108276665A
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- CN
- China
- Prior art keywords
- solar energy
- type solar
- energy backboard
- backboard
- coextrusion type
- 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.)
- Pending
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- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 abstract 2
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- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 5
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- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
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- FEXBEKLLSUWSIM-UHFFFAOYSA-N 2-Butyl-4-methylphenol Chemical class CCCCC1=CC(C)=CC=C1O FEXBEKLLSUWSIM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
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- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
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- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
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- 229910000271 hectorite Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
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- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 229910000273 nontronite Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- 150000003568 thioethers Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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Classifications
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/00—Properties of the layers or laminate
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- B32B2307/712—Weather resistant
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- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
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Abstract
The present invention provides a kind of coextrusion type solar energy backboard, including at least air layer and sandwich layer, air layer includes various weather resistant materials, sandwich layer includes ASA compounds, and ASA compounds include polyacrylate acrylonitrile styrene copolymer, polyolefin, graft polyolefin, light stabilizer, antioxidant and Nano filling etc..The present invention also provides a kind of preparation methods of coextrusion type solar energy backboard, including each layer component is mixed respectively, extruding pelletization, obtained granular material is delivered to other extruders respectively, it is squeezed out through rectangular mould, obtained sheet-like melt obtains coextrusion type solar energy backboard by cooling and shaping, winding.Coextrusion type solar energy backboard provided by the invention is integrally formed, and interlayer adhesion is big, improves interlaminar strength；By using modified polyacrylate acrylonitrile styrene copolymer material, ageing-resistant ability greatly improves；It is apparently higher than existing backboard with the caking property of EVA material, can effectively extend the service life of solar components.
Description
Technical field
The present invention relates to a kind of solar energy backboard and preparation method thereof more particularly to a kind of coextrusion type solar energy backboard and
Preparation method.
Background technology
Solar energy is the resource that detects at present renewable, clean energy resource the abundantest, has unique advantage and huge
Big developing and utilizingpotentiality, it is to utilize solar power generation to study at present more, and solar photovoltaic assembly is solar power generation system
Core in system.
Since solar photovoltaic assembly is mounted on outdoor, working environment is relatively poor, rain of often exposing to the weather
Leaching, therefore, leakproofness and anti-uv-ray to solar photovoltaic assembly have higher requirement.Solar energy backboard is too
The structural encapsulating material of positive energy battery component, the service life for extending solar cell play a significant role, and are
The indispensable component part of solar cell module, while being also one of the cost important composition of solar cell module, it is excellent
Good backboard should have reliable insulating properties, water preventing ability, mechanical performance, resistance to UV aging and heat and moisture aging resistance.
The backboard used in the prior art is generally multi-layer compound structure, with polyester film (PET) for base material, the one of base material
Side coats one layer of glue, dries the solvent in glue during by drying tunnel, fluorine material is then combined to baking
On glue after dry, intermediate is formed, the another side of intermediate is then coated into one layer of glue, is dried again by drying tunnel,
And another layer of fluorine material is combined on the glue after drying, the backboard of multi-layer compound structure is prepared.Wherein, fluorine-containing material
Material can be pvf film (PVF), PVDF membrane (PVDF) or coating fluorocarbon resin (FEVE) etc..It is prepared
The backboard of multilayered structure be primarily present following problem：
1) polyester film (PET) ultraviolet aging resistance, hydrolysis ageing properties are poor.
2) its interlaminar strength is poor, is easy to fall off, and the backboard cementability being prepared is poor, electrical insulating property is low, it is crisp to be easy
Change, tearing.
3) fluorine material is expensive, production technology is complicated, causes the production cost of backboard higher.
4) backboard of packet fluorine material may generate pollution to soil and groundwater in use.
Invention content
The present invention in view of the above-mentioned problems existing in the prior art, provides that a kind of water preventing ability is high, anti-ultraviolet coextrusion type
Solar energy backboard and preparation method thereof.
The first aspect of the invention is to provide a kind of coextrusion type solar energy backboard, the coextrusion type solar energy back of the body
Plate includes at least air layer and sandwich layer, and the air layer includes weather resistant materials, and the sandwich layer includes polyacrylate-propylene
Nitrile-styrol copolymer (ASA) compound, the ASA compounds by weight, including：
In a preferred embodiment, the mass ratio of the air layer and sandwich layer is (0.1-1)：(1-10), preferably
(0.1-0.5)：(1-5).
In a preferred embodiment, the air layer is selected from polyacrylate-acrylonitritrile-styrene resin (ASA
Class), polyamide resin lipid (PA classes), polyesters, any one or a few combination in polyolefins.
In a preferred embodiment, the polyolefin complex does not include fluoropolymer.
In a preferred embodiment, the polyolefin complex, by weight, including：
In a preferred embodiment, the polyolefin is selected from polyethylene, polypropylene, polybutene, polyethylene and ethylene copolymers, gathers
Any one or a few combination of propylene copolymer.
In a preferred embodiment, the polypropylene includes homopolypropylene, copolymer polypropylene and polypropylene-base thermoplastic
Property vulcanized rubber (TPV) in any one or a few combination.
In a preferred embodiment, the comonomer of the copolymer polypropylene includes that non-polar comonomers and polarity are total
Any one or a few combination in polycondensation monomer.
In a preferred embodiment, the grafted monomers of the graft polyolefin are maleic anhydride, acrylic acid, metering system
Any one or a few combination in acid, glycidyl methacrylate etc..
In a preferred embodiment, the polyethylene includes high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE)
(LDPE), very low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene catalysed polyethylene and ethylene-are pungent
Any one or a few combination in alkene copolymer.
In a preferred embodiment, the light stabilizer includes appointing in inorganic photomask agent and organic uv absorbers
Meaning one or more combination.
In a preferred embodiment, the light stabilizer includes inorganic photomask agent, and the inorganic photomask agent includes
Any one or a few combination in titanium dioxide, zinc oxide, carbon black.
In a preferred embodiment, it is benzotriazole, hindered amine that the light stabilizer, which includes organic uv absorbers,
Any one or a few combination in class.
In a preferred embodiment, the antioxidant include in primary antioxidant and auxiliary antioxidant any one or it is several
Kind combination, the primary antioxidant are selected from：Four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters, diphenylamines,
P-phenylenediamine and dihydroquinoline, 2,6- three-level butyl -4- methylphenols, bis- (3,5- three-level butyl -4- hydroxy phenyls) thioethers, four
Any one or a few in (β-(3,5- three-level butyl -4- hydroxy phenyls) propionic acid) pentaerythritol ester and light stabilizer 2020
Combination, the auxiliary antioxidant are selected from：Three monooctyl esters, three last of the ten Heavenly stems esters, three (Lauryl Alcohol) esters and three (16 carbon alcohol) esters, three [2.4-
Di-tert-butyl-phenyl] any one or a few combination in phosphite ester.
In a preferred embodiment, the Nano filling is any one in inorganic nano-filler, organic nanofiller
Kind or several combinations.
Preferably, the inorganic nano-filler, which is selected from, contains Na+、Ca2+、Al3+、Si4+、Fe2+、Fe3+、 Ba2+、Mg2+、Ti4+
And its at least one tradable cationic inorganic object of mixture.
It is highly preferred that the inorganic nano-filler be selected from rectorite, illite, montmorillonite, sodium montmorillonite, calcium montmorillonite,
Magnesium montmorillonite, nontronite, beidellite, wolchonskoite, synthesis of clay, hectorite, saponite, sauconite, kenyaite, Fu Mei
In montmorillonite, vermiculite, aluminate oxide, titanium dioxide, talcum powder, hydrotalcite, kaolinite and its mixture any one or
Several combinations.
Preferably, the organic nanofiller is diorganopolysiloxaneand, organic rectorite, the poly- silica of quaternary ammonium organic group
In alkane any one or combinations thereof, wherein organic rectorite use periodical《Chemistry world》The 6th phase of version in 1999,291-
Page 293, the preparation and its application study of organic rectorite, disclosed in preparation method prepare.
The second aspect of the invention is to provide a kind of preparation method of coextrusion type solar energy backboard, the preparation side
Method includes the following steps：
By weight, polyacrylate -5-50 parts of acrylonitritrile-styrene resin, 50-90 parts of polyolefin, grafting is poly-
1-50 parts of alkene, 0.1-10 parts of light stabilizer, 0.1-1 parts of antioxidant, 5-30 parts of Nano filling, with the rotating speed of 500-1000rpm
It is stirred, obtains the first pre-composition, the pre-composition of preparation is delivered to granulating extruder, is squeezed out under the conditions of 150-300 DEG C
It is granulated, polyacrylate-acrylonitrile of sandwich layer-styrol copolymer compound A is prepared, it is spare；
By weight, using following material preparation as coextrusion backboard air layer compound, with turning for 500-1000rpm
Speed is stirred, and obtains the second pre-composition, and the pre-composition of preparation is delivered to granulating extruder, is squeezed under the conditions of 150-300 DEG C
Go out to be granulated, sheet material backboard air layer compound B is prepared, it is spare:
1. polyacrylate -10~90 parts of acrylonitrile benzene-ethylene copolymer (ASA classes), polypropylene or polyesters or poly- carbon
10~90 parts of esters of gallic acid or polyamide-based resin, 1~20 powder of titanium dioxide, 0.1~1 part of UV stabilizer, antioxidant 0.1~1
Part；
2. or by homemade modified polyolefin hydro carbons A100 parts.
The polyolefin complex A being prepared and air layer compound B are delivered to coextrusion backboard producing line respectively to squeeze out
Machine A and extruder B squeezes out through common rectangle mouth mold after melting, being plasticized, obtains sheet-like melt.
Sheet-like melt obtains the coextrusion type solar energy backboard by cooling roller cooling and shaping, winding, forms the back of the body
AB layers of structure of plate.
In a preferred embodiment, the rectangle mouth mold is hollow rectangular parallelepiped structure, the rectangle mouth mold
Width × thickness=((800-1300) mm × (0.3-3) mm.Coextrusion type solar energy backboard provided by the invention, through primary
Extrusion molding, interlayer adhesion is big, is not susceptible to peeling, significantly improves the interlaminar strength of solar energy backboard.And
Simple process and low cost is honest and clean.In addition, the caking property with EVA material reaches 200N/cm or more, hence it is evident that be higher than the prior art and EVA
The caking property of material, the solar components prepared using coextrusion type solar energy backboard provided by the invention are not easy to crack, can
Effectively extend the service life of solar components.In addition, since coextrusion type solar energy backboard provided by the invention does not contain fluorine-containing material
Therefore material will not generate pollution to soil and groundwater in use, meet the requirement of environmentally friendly material.
Specific implementation mode
The preparation of solar energy backboard
Embodiment one is to embodiment five
By weight, polyacrylate -5-50 parts of acrylonitritrile-styrene resin, 50-90 parts of polyolefin, grafting is poly-
1-50 parts of propylene, 0.1-10 parts of light stabilizer, 0.1-1 parts of antioxidant, 5-30 parts of Nano filling, with the rotating speed of 500-1000rpm
It is stirred, obtains pre-composition, the pre-composition of preparation is delivered to granulating extruder, extruding pelletization under the conditions of 150-300 DEG C,
The polyacrylate of sandwich layer-acrylonitritrile-styrene resin compound A is prepared, it is spare.
By weight, using following material preparation as coextrusion backboard air layer compound, with turning for 500-1000rpm
Speed is stirred, and obtains the second pre-composition, and the pre-composition of preparation is delivered to granulating extruder, is squeezed under the conditions of 150-300 DEG C
Go out to be granulated, sheet material backboard air layer compound B is prepared, it is spare；
By the polyacrylate for the sandwich layer being prepared-acrylonitritrile-styrene resin compound A, air layer compound B
It is delivered to coextrusion backboard producing line extruder A, extruder B respectively, squeezes out, obtains through common mouth mold after melting, being plasticized
To sheet-like melt, air layer, sandwich layer are wherein followed successively by sheet-like melt；The sheet-like melt by cooling roller cooling and shaping,
Winding obtains the coextrusion type solar energy backboard.The content of each component is as shown in table 1 in embodiment one to embodiment five.
The content (parts by weight) of each component in table 1, embodiment one to embodiment five
Wherein, in the embodiment of the present invention, light stabilizer is commercially available Tinuvin 770 and titanium dioxide according to weight ratio 1：
1 mixing compounding, Nano filling refers to the particle that granularity is less than 1000nm, which is generally determined with diameter.Graft polypropylene
Grafted monomers are maleic anhydride, and Nano filling is nano-titanium dioxide, and antioxidant is commercially available antioxidant 1010.
Comparative example one is to comparative example five
The preparation method of comparative example one to comparative example five is identical as the preparation method of embodiment one to embodiment five, difference
It is in the content in each component, the content of each component is as shown in table 2 in comparative example one to comparative example five.
The content (parts by weight) of each component in table 2, comparative example one to comparative example five
Comparative example six, comparative example seven
Comparative example six is commercially available TPT backboards, and comparative example seven is commercially available KPK backboards.
Backboard performance test
Coextrusion type solar energy backboard prepared by the application is the back of the body provided in experimental group, with comparative example one to comparative example seven
Plate compares, to illustrate the performance of coextrusion type solar energy backboard provided by the invention, specific test data such as table 3, table 4 and table
Shown in 5：
For atmospheric exposure test, what is generally used has natural climate degradation and the experiment of artificial acceleration illumination ageing,
Middle artificial acceleration illumination ageing experiment includes that the artificial accelerations weather such as Yin arc exposure or carbon arc light irradiation, ultraviolet lamp irradiation is old
Change experiment.
Natural climate aging testing method is domestic and international widely used method, the main reason is that natural climate aging is real
It tests result and more meets reality, required expense is relatively low and simple to operate.Although anywhere nature gas can be carried out
Degradation is waited, but the test site for comparing approval in the world is the exposure test field of the Florida State in the similar U.S., because
Its is sunny.But the shortcoming of natural climate degradation is that the time that experiment needs is long, and testing crew may be without this
Years wait for the test result of a product.Even in addition, in ideal exposure test field, weather can not possibly year
Multiple 1 year identical, therefore the reproducibility of test result is also undesirable.Therefore, it many times to be tried by artificial weatherability
It tests.
Applicant using artificial acceleration illumination ageing test method, to detect in chamber polyolefin provided by the invention multiple
Close the weatherability of object.Light source is installed at the center of the present embodiment chamber, is equipped with the rotary drum of installation sample to be tested frame in case, on babinet
Equipped with the instructions such as light source power, the temperature inside the box, humidity, spray cycle and self-con-tained unit, wet and dry bulb temperature automatic recording instrument and meter
When device.In addition an air regulator is additionally provided on babinet, with the content of ozone in control cabinet, test result such as table 3 to 5 institute of table
Show, wherein DH2000hr refers to 2000 hours accumulative under conditions of 85 DEG C, humidity are 85%, and UV 300KWh refer to ultraviolet
It is 300KWh to add up irradiation energy under the conditions of light, and PCT 72hr refer in 121 DEG C of accumulative boilings 72 hours.
The performance of solar energy backboard prepared by table 3, embodiment one to embodiment five
The performance of solar energy backboard prepared by table 4, comparative example one to comparative example five
The performance for the solar energy backboard that table 5, comparative example six, comparative example seven provide
Wherein, the color of solar energy backboard is tested using yellowness index method.
Tensile property and fracture property use the performance of GB/T 528-1998 the method test materials.
Surface energy is using a dyne pen test.
Peel strength uses the performance of GB/T2792-1998 the method test materials.
Water vapor transmittance is tested using Infrared Detection Method, and coextrusion type solar energy backboard provided by the invention is prepared into thickness
Degree is 300 μm of sample, tests its water vapor transmittance.
By table 3, table 4 it is found that the solar energy backboard prepared in embodiment one to embodiment five is in DH2000hr, PCT72hr
Under the conditions of handle after, the yellowness index of solar energy backboard, which is respectively less than, is equal to 3.5, and is prepared too in comparative example one to comparative example five
It is positive can the yellowness index of backboard be all higher than equal to 4, wherein solar energy backboard prepared by comparative example four under the conditions of DH2000hr at
After reason, yellowness index is up to 8.
The solar energy that the solar energy backboard prepared in embodiment one to embodiment five is prepared with comparative example one to comparative example five
For backboard under the conditions of UV300KWh after ultraviolet ageing processing, the yellowness index of solar energy backboard is 2 without significant difference.
In addition, the extension at break retention rate that compares under different condition that treated is it is found that prepared by embodiment one to embodiment five
Solar energy backboard handled under identical conditions after, extension at break retention rate performance relatively, such as in DH2000hr processing
Afterwards, extension at break retention rate is between 80%-85%, such as after UV300KWh, PCT 72hr processing, extension at break
Retention rate is between 70%-75%.And solar energy backboard prepared by comparative example one to comparative example five is handled under identical conditions
Afterwards, the fluctuation of extension at break retention rate is larger, and is below the solar energy that embodiment one is prepared to embodiment five under the same terms
The performance of backboard.
The extension at break retention rate and tensile strength retention rate of solar energy backboard i.e. provided by the invention are above comparative example
In analog value.In addition, comparing comparative example one to comparative example five, it is known that, it is each in comparative example one, comparative example three, comparative example five
Item performance number is above the corresponding index of comparative example two and comparative example four, illustrates that polythene material is ageing-resistant and is better than polypropylene material
Material.By comparative example three to comparative example five it is found that polyethylene and polyacrylic compounding and addition composite light stabilizer, can not yet
The effective performance for improving solar energy backboard.
And coextrusion type solar energy backboard provided by the invention is by making ASA, polypropylene, polyethylene mix according to a certain percentage
It closes, after graft polypropylene, composite light stabilizer and Nano filling is added, the performance of solar energy backboard is obviously improved, and is illustrated each
Component acts synergistically during preparation, together provides the properties of product of solar energy backboard.
The surface energy of solar energy backboard provided by the invention is all higher than between 40-42 dynes with EVA peel strengths
200N/m, more excellent with the bond properties of EVA, water vapor transmittance is respectively less than 1g/m2.d, block-water performance is more superior.The present invention provides
The excellent performance of solar energy backboard make it possible to greatly improve the use of solar cell as solar cell backboard
Service life.
Comparing embodiment one to embodiment five and comparative example six, comparative example seven, as shown in table 3, table 5 implemented by specific data
After the coextrusion type solar energy backboard prepared in example one to embodiment five is handled under the conditions of DH2000hr, coextrusion type solar energy
The TPT backboards and KPK backboards that the yellowness index of backboard is prepared compared with the existing technology, yellowness index is constant or slightly increases, can
To find out that the yellowness index of coextrusion type solar energy backboard provided by the present application relatively connects with existing TPT backboards and KPK backboards
Closely.
After the coextrusion type solar energy backboard prepared in embodiment one to comparative example five is handled under the conditions of UV300KW/h,
The yellowness index of coextrusion type solar energy backboard is 2, illustrates that coextrusion type solar energy backboard provided by the invention exists
After being handled under the conditions of UV300KW/h, change colour less apparent, the TPT backboards and KPK backboard discoloration-resistings of prior art preparation
It is close.
After the coextrusion type solar energy backboard prepared in embodiment one to embodiment five is handled under the conditions of PCT 72hr, altogether
The extension at break conservation rate of extrusion type solar energy backboard is 70%~75%, and breaking using the TPT backboards of prior art preparation
Elongation retention is split 30%~40%.
In addition, since solar energy backboard prepared by the present invention is coextrusion type structure, splitting is not present
Power, and the solar energy backboard that comparative example six, comparative example seven provide is multilayered structure, splitting power is 4N/cm.Moreover, this
Invent provide solar energy backboard and EVA peel strength be more than 200N/cm, and comparative example six, comparative example seven provide the sun
The peel strength of energy backboard and EVA are in 100N/cm or so, i.e., simple solar energy backboard provided by the invention is compared with the existing technology
The multilayer solar backboard of preparation is not easy to crack in use, can effectively improve the service life of solar energy backboard.
By table 3, table 5 it will also be appreciated that the steam percent of pass of solar energy backboard prepared by the present invention is in 1 g/m2.d with
Under, and the steam percent of pass for the solar energy backboard that comparative example six, comparative example seven provide is in 2.5g/m2.d left and right, illustrates this Shen
The multilayer solar backboard that the solar energy backboard that please be provided is prepared compared with the existing technology, steam percent of pass is lower, can be apparent
Play the role of water proof, block water, to further increase the service life of solar energy backboard.
Specific embodiments of the present invention are described in detail above, but it is intended only as example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
It substitutes also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by impartial conversion and
Modification, all should be contained within the scope of the invention.
Claims (8)
1. a kind of coextrusion type solar energy backboard, which is characterized in that the coextrusion type solar energy backboard includes at least air layer
And sandwich layer, the air layer include weather resistant materials, the sandwich layer includes that polyacrylate-acrylonitritrile-styrene resin is multiple
Close object, the polyacrylate-acrylonitritrile-styrene resin compound by weight, including：
2. coextrusion type solar energy backboard according to claim 1, which is characterized in that the air layer is selected from polyacrylic acid
Any one or a few combination in ester-acrylonitritrile-styrene resin, polyamide resin lipid, polyesters, polyolefins, institute
The mass ratio for stating air layer and sandwich layer is (0.1-1)：(1-10).
3. coextrusion type solar energy backboard according to claim 1, which is characterized in that the polyacrylate-acrylonitrile-
Styrol copolymer (ASA) compound, by weight, including：
4. coextrusion type solar energy backboard according to claim 1, which is characterized in that the light stabilizer includes inorganic light
Screener, the inorganic photomask agent include any one or a few combination in titanium dioxide, zinc oxide, carbon black；
And/or
The light stabilizer includes that organic uv absorbers are benzotriazole, any one or a few group in hindered amines
It closes.
5. a kind of preparation method of coextrusion type solar energy backboard as described in claim 1, which is characterized in that the preparation side
Method includes the following steps：
By weight, polyacrylate -5-50 parts of acrylonitritrile-styrene resin, by 50-90 parts of polyolefin, graft polyolefin
1-50 parts, 0.1-10 parts of light stabilizer, 0.1-1 parts of antioxidant, 5-30 parts of Nano filling, stirred with the rotating speed of 500-1000rpm
Mixing, obtains the first pre-composition, the pre-composition of preparation is delivered to granulating extruder, extruding pelletization under the conditions of 150-300 DEG C,
The polyacrylate of sandwich layer-acrylonitritrile-styrene resin compound A is prepared, it is spare；
By weight, it using following material preparation as coextrusion backboard air layer compound, is stirred with the rotating speed of 500-1000rpm
Mixing, obtains the second pre-composition, the pre-composition of preparation is delivered to granulating extruder, extruding pelletization under the conditions of 150-300 DEG C,
Sheet material backboard air layer compound B is prepared, it is spare.
Polyacrylate -10~90 parts of acrylonitrile benzene-ethylene copolymer (ASA classes), polypropylene or polyesters or polycarbonate-based
Or 10~90 parts of polyamide-based resin, 1~20 powder of titanium dioxide, 0.1~1 part of UV stabilizer, 0.1~1 part of antioxidant；
The polyacrylate being prepared-acrylonitritrile-styrene resin compound A and air layer compound B are delivered to respectively
Backboard is coextruded producing line extruder A and extruder B, is squeezed out through common rectangle mouth mold after melting, being plasticized, obtains sheet
Melt；
Sheet-like melt passes through cooling roller cooling and shaping, winds or cut sheet, obtains the coextrusion type solar energy backboard,
Form AB layers of structure of backboard.
6. the preparation method of coextrusion type solar energy backboard according to claim 5, which is characterized in that the rectangle shape of the mouth as one speaks
Mold is hollow rectangular parallelepiped structure, width × thickness=(800-1300) mm × (0.3-3) mm of the rectangle mouth mold.
7. coextrusion type solar energy backboard according to claim 5, can also between its table air layer and sandwich layer and/
Or in one layer of adhesive layer of sandwich layer inner surface co-extrusion, to improve epidermis and sandwich layer and sandwich layer and photovoltaic module other structures
The adhesion strength of EVA layer.The adhesive layer includes polyolefin complex, graft polyolefin, polyolefin copolymer and relevant
Modified product.
8. single layer solar energy backboard according to claim 1, which is characterized in that integrated molding, technological process is brief, resistance to
Comprehensive aging is excellent, water vapor barrier property is good.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112768542A (en) * | 2021-01-05 | 2021-05-07 | 浙江中聚材料有限公司 | Insulated solar photovoltaic backboard and preparation process 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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