CN116682869A - High-energy-efficiency reflective film for double-glass solar backboard and preparation method thereof - Google Patents
High-energy-efficiency reflective film for double-glass solar backboard and preparation method thereof Download PDFInfo
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- CN116682869A CN116682869A CN202310616262.XA CN202310616262A CN116682869A CN 116682869 A CN116682869 A CN 116682869A CN 202310616262 A CN202310616262 A CN 202310616262A CN 116682869 A CN116682869 A CN 116682869A
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- 239000011521 glass Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 6
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- 239000011347 resin Substances 0.000 claims description 122
- 239000011248 coating agent Substances 0.000 claims description 116
- 238000000576 coating method Methods 0.000 claims description 116
- 229920001187 thermosetting polymer Polymers 0.000 claims description 35
- 239000002002 slurry Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 27
- 238000000748 compression moulding Methods 0.000 claims description 21
- 238000001771 vacuum deposition Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000007747 plating Methods 0.000 claims description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 229920001897 terpolymer Polymers 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229920001568 phenolic resin Polymers 0.000 claims description 8
- 239000005011 phenolic resin Substances 0.000 claims description 8
- 150000003505 terpenes Chemical class 0.000 claims description 8
- 235000007586 terpenes Nutrition 0.000 claims description 8
- KPAPHODVWOVUJL-UHFFFAOYSA-N 1-benzofuran;1h-indene Chemical compound C1=CC=C2CC=CC2=C1.C1=CC=C2OC=CC2=C1 KPAPHODVWOVUJL-UHFFFAOYSA-N 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 7
- 150000002978 peroxides Chemical class 0.000 claims description 7
- 239000004014 plasticizer Substances 0.000 claims description 7
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 6
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 6
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000010345 tape casting Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims description 3
- 239000004431 polycarbonate resin Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-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
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- DOEVBVUDLFZBTI-UHFFFAOYSA-N ethenyl acetate;furan-2,5-dione;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=O)OC=C.O=C1OC(=O)C=C1 DOEVBVUDLFZBTI-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012673 precipitation polymerization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
-
- 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
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
Abstract
The application discloses a high-energy-efficiency reflective film for a double-glass solar backboard and a preparation method thereof.
Description
Technical Field
The application relates to a high-energy-efficiency reflective film used on a double-glass solar backboard and a preparation method thereof.
Background
Solar photovoltaic is one of the important forms of solar energy utilization, and solar photovoltaic power generation can reduce the dependence and consumption of nonrenewable fossil fuels, reduce environmental pollution and the like. Solar power generation cell assemblies based on the photovoltaic principle are now relatively mature. The conventional solar module mainly comprises an encapsulation adhesive layer, a cell array, a back plate, glass and the like. The single battery piece is not enough to be used as a power supply, and the purpose of outputting power of the assembly is achieved by connecting the welding strips in series to realize current conduction. Due to the existence of the welding strip, the sunlight irradiated on the solar cell cannot be fully utilized, and the sunlight is wasted.
Therefore, the method for improving the sunlight utilization rate has certain production and application values.
Disclosure of Invention
The application provides a high-energy-efficiency reflective film used on a double-glass solar back plate, which is used on the double-glass solar back plate, and reflects the reflective film incident on the reflective film to the interface of glass and air in more directions and angles, so that total reflection occurs to the solar back plate, and the total light receiving amount of the solar back plate is increased.
The technical aim of the application is realized by the following technical scheme:
the high-energy-efficiency reflective film for the double-glass solar backboard comprises base material resin, thermosetting light-storage resin slurry, reflective coating, ultraviolet-proof coating, infrared-proof coating and coating resin which are sequentially arranged.
Preferably, the substrate resin is selected from polyvinyl butyral and/or polycarbonate resin.
Preferably, the thermosetting light-accumulating resin slurry comprises the following components in parts by weight: 100 to 150 parts of maleic anhydride terpolymer, 20 to 30 parts of coumarone-indene resin, 30 to 50 parts of modified terpene phenolic resin, 70 to 100 parts of light storage powder, 60 to 80 parts of epoxy organosilicon, 3 to 5 parts of peroxide, 5 to 10 parts of plasticizer and 6 to 8 parts of ethylenediamine.
Preferably, the base resin and the thermosetting light-accumulating resin slurry coated on the base resin are subjected to compression molding, the surface subjected to compression molding is provided with a plurality of triangular protrusions and circular arc protrusions, and the triangular protrusions and the circular arc protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is more than 2:1, and the height of the triangular bulge is 0.01-1 mm.
Preferably, the base resin and the thermosetting light-accumulating resin paste coated on the base resin are baked and cured at 160-180 ℃ before compression molding.
Preferably, the reflective coating is a vacuum coating, silver, nickel and/or aluminum are selected as the reflective coating, and the thickness of the reflective coating is 250-350 angstroms.
Preferably, the anti-ultraviolet coating is a vacuum coating, zinc oxide and/or indium tin oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 10-40 angstroms.
Preferably, the anti-infrared coating is a vacuum coating, the anti-infrared coating comprises silicon dioxide and antimony oxide with the mass ratio of 1-3:5, and the thickness of the anti-infrared coating is 30-50 angstroms.
Preferably, the coating resin is fluorocarbon resin, the coating resin is adhered on the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.05-0.10 mm.
The second object of the application is to provide a method for preparing the high-energy-efficiency reflective film used on the double-glass solar backboard.
The technical aim of the application is realized by the following technical scheme:
the method for preparing the high-energy-efficiency reflective film used on the double-glass solar backboard comprises the following steps:
s1, extruding and molding base material resin in a double screw;
s2, coating thermosetting light-accumulating resin slurry on the S1;
s3, carrying out compression molding on the S2 material in a mold;
s4, plating a reflective coating on the surface of the S3;
s5, plating an ultraviolet-proof coating on the surface of the S4;
s6, plating an infrared-proof coating on the surface of the S5;
and S7, coating a coating resin on the surface of the S6.
The technical effects of the application are mainly as follows:
the high-efficiency reflective film provided by the application is simple in preparation process and low in cost, is used on the double-glass solar backboard, reflects light incident on the reflective film to the interface of glass and air in more directions and angles, and achieves the effect that total reflection occurs to the solar backboard, so that the total light receiving amount of the solar backboard is increased, and the power of a solar module is increased;
the adopted high-efficiency reflective film has better cohesiveness, no offset phenomenon after lamination of the film strips, good reflective effect and effectively improved power of the solar module;
in the preparation process, the S2 material is molded, before the molding, the base material resin and the thermosetting light-accumulating resin slurry coated on the base material resin are baked and cured at 160-180 ℃, the lamination pressure is reduced, the hidden cracking condition is improved, no bubble bad condition exists after lamination, and different layers of the reflecting film are firmly combined;
the high-efficiency reflective film adopted by the application has good weather resistance.
Detailed Description
The application discloses a high-energy-efficiency reflective film for a double-glass solar backboard, which comprises base material resin, thermosetting light-storage resin slurry, a reflective coating, an ultraviolet-proof coating, an infrared-proof coating and coating resin which are sequentially arranged. The energy-efficient reflective film is prepared by the following method:
s1, extruding and molding base material resin in a double screw;
s2, coating thermosetting light-accumulating resin slurry on the S1;
s3, carrying out compression molding on the S2 material in a mold;
s4, plating a reflective coating on the surface of the S3;
s5, plating an ultraviolet-proof coating on the surface of the S4;
s6, plating an infrared-proof coating on the surface of the S5;
and S7, coating a coating resin on the surface of the S6.
The substrate resin is polyvinyl butyral and/or polycarbonate resin.
Polyvinyl butyral, PVB for short, is selected as the base resin, and PVB is purchased from BH-6 model of Japanese water logging card.
The thermosetting light-accumulating resin slurry comprises the following components in parts by weight: 100 to 150 parts of maleic anhydride terpolymer, 20 to 30 parts of coumarone-indene resin, 30 to 50 parts of modified terpene phenolic resin, 70 to 100 parts of light storage powder, 60 to 80 parts of epoxy organosilicon, 3 to 5 parts of peroxide, 5 to 10 parts of plasticizer and 6 to 8 parts of ethylenediamine.
The specific method for preparing the maleic anhydride terpolymer in the thermosetting light-storage resin slurry and preparing the maleic anhydride terpolymer and the dielectric property research of the composite material thereof is disclosed in colloid and polymer, 2010, 9 th, 28 th and 3 rd phase of the patent publication by Yao Junlong et al: maleic anhydride terpolymer (MA-VA-AA) is synthesized by precipitation polymerization technique; 100ml of toluene, 0.20mol of powdery maleic anhydride, 0.18mol of vinyl acetate and 0.02mol of acrylic acid are added into a reaction vessel, stirred and mixed uniformly, heated to 85 ℃ and controlled in temperature, 0.5wt% of initiator azodiisobutyronitrile is added, the temperature is controlled at 85 ℃ for reaction for 120min, the filtration and the drying at 40 ℃ are carried out to obtain white powder, the yield is 75%, the infrared spectrogram obtained by infrared detection of the obtained white powder is the same as that of the prior art, and the maleic anhydride-vinyl acetate-acrylic acid terpolymer (MA-VA-AA) is proved to be synthesized.
The coumarone-indene resin in the thermosetting light-accumulating resin slurry is purchased from Tuoban brand pharmaceutical grade of Tuoban chemical Co., ltd.
The modified terpene phenolic resin in the thermosetting light-accumulating resin paste was purchased from model 803L of the Japanese waste Sichuan brand.
The light-accumulating powder in the thermosetting light-accumulating resin slurry is long-afterglow light-accumulating powder, and is purchased from HHOY-10 model of Hangzhou Huihai brand of Hangzhou Huihai chemical industry Co.
Epoxy organosilicon in the thermosetting light-accumulating resin slurry is purchased from new four-sea brand SMH-30 resin model of New four-sea chemical industry Co., ltd.
The peroxide in the thermosetting light-accumulating resin paste was purchased from Perkadox model 16, no. no.
The plasticizer in the thermosetting light-accumulating resin slurry is calcium carbonate.
The method comprises the steps that base material resin and thermosetting light-accumulating resin slurry coated on the base material resin are subjected to compression molding, a plurality of triangular protrusions and arc-shaped protrusions are formed on the surface of the base material resin subjected to compression molding, and the triangular protrusions and the arc-shaped protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is more than 2:1, and the height of the triangular bulge is 0.01-1 mm.
Before compression molding, the base resin and the thermosetting light-accumulating resin slurry coated on the base resin are baked and cured at 160-180 ℃.
The reflective coating is vacuum coating, silver, nickel and/or aluminum are selected as the reflective coating, and the thickness of the reflective coating is 250-350 angstroms.
The anti-ultraviolet coating is a vacuum coating, zinc oxide and/or indium tin oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 10-40 angstroms.
The anti-infrared coating is a vacuum coating, and comprises silicon dioxide and antimony oxide in a mass ratio of 1-3:5, and the thickness of the anti-infrared coating is 30-50 angstroms.
The coating resin is fluorocarbon resin, the coating resin is adhered on the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.05-0.10 mm.
The application will be further illustrated by means of specific examples.
Example 1: the high-energy-efficiency reflective film for the double-glass solar backboard comprises base material resin, thermosetting light-storage resin slurry, reflective coating, ultraviolet-proof coating, infrared-proof coating and coating resin which are sequentially arranged. The energy-efficient reflective film is prepared by the following method:
s1, extruding and molding base material resin in a double screw;
s2, coating thermosetting light-accumulating resin slurry on the S1;
s3, carrying out compression molding on the S2 material in a mold;
s4, plating a reflective coating on the surface of the S3;
s5, plating an ultraviolet-proof coating on the surface of the S4;
s6, plating an infrared-proof coating on the surface of the S5;
and S7, coating a coating resin on the surface of the S6.
The substrate resin is polyvinyl butyral.
The thermosetting light-accumulating resin slurry comprises the following components in parts by weight: 125 parts of maleic anhydride terpolymer, 25 parts of coumarone-indene resin, 40 parts of modified terpene phenolic resin, 85 parts of light storage powder, 70 parts of epoxy organosilicon, 4 parts of peroxide, 8 parts of plasticizer and 7 parts of ethylenediamine.
The method comprises the steps that base material resin and thermosetting light-accumulating resin slurry coated on the base material resin are subjected to compression molding, a plurality of triangular protrusions and arc-shaped protrusions are formed on the surface of the base material resin subjected to compression molding, and the triangular protrusions and the arc-shaped protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is 3:1, and the height of the triangular bulge is 0.5mm.
The base resin and the thermosetting light-accumulating resin slurry coated on the base resin are baked and cured at 170 ℃ before compression molding.
The reflective coating is vacuum coating, silver is selected as the reflective coating, and the thickness of the reflective coating is 300 angstroms.
The anti-ultraviolet coating is a vacuum coating, zinc oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 30 angstroms.
The anti-infrared coating is a vacuum coating, and comprises silicon dioxide and antimony oxide in a mass ratio of 2:5, and the thickness of the anti-infrared coating is 40 angstroms.
The coating resin is fluorocarbon resin, the coating resin is adhered on the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.08mm.
Example 2: the energy-efficient reflective film used on the double-glass solar backboard is different from the embodiment 1 in that the thermosetting light-storage resin slurry comprises the following components in parts by weight: 100 parts of maleic anhydride terpolymer, 20 parts of coumarone-indene resin, 30 parts of modified terpene phenolic resin, 70 parts of light storage powder, 60 parts of epoxy organosilicon, 3 parts of peroxide and 5 parts of modified terpene phenolic resin
Plasticizer and 6 parts of ethylenediamine.
The method comprises the steps that base material resin and thermosetting light-accumulating resin slurry coated on the base material resin are subjected to compression molding, a plurality of triangular protrusions and arc-shaped protrusions are formed on the surface of the base material resin subjected to compression molding, and the triangular protrusions and the arc-shaped protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is 2.2:1, and the height of the triangular bulge is 0.01mm.
The base resin and the thermosetting light-accumulating resin slurry coated on the base resin are baked and cured at 160 ℃ before compression molding.
The reflective coating is vacuum coating, nickel is selected as the reflective coating, and the thickness of the reflective coating is 250 angstroms.
The anti-ultraviolet coating is a vacuum coating, indium tin oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 10 angstroms.
The anti-infrared coating is a vacuum coating, and comprises silicon dioxide and antimony oxide in a mass ratio of 1:5, and the thickness of the anti-infrared coating is 30 angstroms.
The coating resin is fluorocarbon resin, the coating resin is adhered on the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.05mm.
Example 3: the energy-efficient reflective film used on the double-glass solar backboard is different from the embodiment 1 in that the thermosetting light-storage resin slurry comprises the following components in parts by weight: 150 parts of maleic anhydride terpolymer, 30 parts of coumarone-indene resin, 50 parts of modified terpene phenolic resin, 100 parts of light storage powder, 80 parts of epoxy organosilicon, 5 parts of peroxide, 10 parts of plasticizer and 8 parts of ethylenediamine.
The method comprises the steps that base material resin and thermosetting light-accumulating resin slurry coated on the base material resin are subjected to compression molding, a plurality of triangular protrusions and arc-shaped protrusions are formed on the surface of the base material resin subjected to compression molding, and the triangular protrusions and the arc-shaped protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is 5:1, and the height of the triangular bulge is 1mm.
The base resin and the thermosetting light-accumulating resin slurry coated on the base resin are baked and cured at 180 ℃ before compression molding.
The reflective coating is vacuum coating, aluminum is selected as the reflective coating, and the thickness of the reflective coating is 350 angstroms.
The anti-ultraviolet coating is a vacuum coating, zinc oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 40 angstroms.
The anti-infrared coating is a vacuum coating, and comprises silicon dioxide and antimony oxide in a mass ratio of 3:5, and the thickness of the anti-infrared coating is 50 angstroms.
The coating resin is fluorocarbon resin, the coating resin is adhered on the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.10mm.
Comparative example 1: a light reflecting film was different from example 1 in that no uv-protective coating, ir-protective coating or coating resin was provided.
Comparative example 2: a light reflecting film was different from example 1 in that no coating resin was provided.
Comparative example 3: a light reflecting film was different from example 1 in that the base resin and the thermosetting light accumulating resin paste coated on the base resin were not baked and cured before compression molding.
Performance test
The test subjects were placed in a forced air oven (unable to control relative humidity) at 0 ℃/20% RH, 25 ℃/40% RH, 25 ℃/97% RH, 120 ℃ for 48hr (under light-shielding conditions), respectively, and the reflectivities before and after the placement were tested; each test subject was averaged 5 times in parallel.
Table 1 shows that example 1 has a lower rate of change of reflectance after being placed in a forced air oven at 0℃/20C/RH, 25℃/40C, 25℃/97C/RH, 120℃, is more resistant to low temperatures, high temperatures and high humidity, and has better weatherability than the comparative example.
TABLE 1
Performance testing
And taking the reflective film to test the light transmittance and the reflectivity.
The reflective film was placed under conditions of humidity of 55.+ -. 2 ℃ and relative humidity of 98% RH for 24hr, and the reflectance and transmittance were measured.
Table 2 shows that the initial reflectance and the initial transmittance of example 1 are both significantly improved, and the solar energy utilization rate of the reflective film is improved, compared with comparative example 3, and the reflectance and the transmittance change rate after being placed at 55 ℃/98% rh are small, and the reflective film has better weather resistance.
TABLE 2
| Example 1 | Comparative example 1 | Comparative example 3 | |
| Initial reflectance (%) | 95.8 | 95.9 | 95.0 |
| Initial light transmittance (%) | 91.4 | 91.8 | 82.3 |
| Reflectivity (%) | 95.5 | The film layer was separated and not tested | The film layer was separated and not tested |
| Transmittance after standing at 55 ℃ C./98% RH (%) | 91.3 | The film layer was separated and not tested | The film layer was separated and not tested |
Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.
Claims (10)
1. The high-energy-efficiency reflective film for the double-glass solar backboard is characterized by comprising base material resin, thermosetting light-storage resin slurry, reflective coating, ultraviolet-proof coating, infrared-proof coating and coating resin which are sequentially arranged.
2. The high energy efficiency reflective film for a dual-glass solar back panel according to claim 1, wherein said base resin is selected from the group consisting of polyvinyl butyral and/or polycarbonate resin.
3. The high-energy-efficiency reflective film for a dual-glass solar back panel according to claim 1, wherein the thermosetting light-storage resin slurry comprises the following components in parts by weight: 100 to 150 parts of maleic anhydride terpolymer, 20 to 30 parts of coumarone-indene resin, 30 to 50 parts of modified terpene phenolic resin, 70 to 100 parts of light storage powder, 60 to 80 parts of epoxy organosilicon, 3 to 5 parts of peroxide, 5 to 10 parts of plasticizer and 6 to 8 parts of ethylenediamine.
4. The high-energy-efficiency reflective film for a dual-glass solar back panel according to claim 1, wherein the substrate resin and the thermosetting light-accumulating resin paste coated on the substrate resin are molded, and the molded surface is provided with a plurality of triangular protrusions and circular-arc-shaped protrusions, and the triangular protrusions and the circular-arc-shaped protrusions are alternately arranged; the triangular bulge is an isosceles triangle, and the circular arc bulge is semicircular or fan-shaped; the height ratio of the triangular bulge to the circular arc bulge is more than 2:1, and the height of the triangular bulge is 0.01-1 mm.
5. The high energy efficiency retroreflective sheeting of claim 1 wherein the substrate resin and the thermoset light accumulating resin paste applied to the substrate resin are baked and cured at 160-180 ℃ prior to compression molding.
6. The high-energy-efficiency reflective film for a dual-glass solar backboard according to claim 1, wherein the reflective coating is a vacuum coating, silver, nickel and/or aluminum is selected as the reflective coating, and the thickness of the reflective coating is 250-350 angstroms.
7. The high-energy-efficiency reflective film for a dual-glass solar backboard according to claim 1, wherein the anti-ultraviolet coating is a vacuum coating, zinc oxide and/or indium tin oxide is selected as the anti-ultraviolet coating, and the thickness of the anti-ultraviolet coating is 10-40 angstroms.
8. The high-energy-efficiency reflective film for a dual-glass solar backboard according to claim 1, wherein the anti-infrared coating is a vacuum coating, the anti-infrared coating comprises silicon dioxide and antimony oxide in a mass ratio of 1-3:5, and the thickness of the anti-infrared coating is 30-50 angstroms.
9. The high-energy-efficiency reflective film for a dual-glass solar back panel according to claim 1, wherein the coating resin is fluorocarbon resin, the coating resin is adhered to the infrared-proof coating in a tape casting mode, and the thickness of the coating resin is 0.05-0.10 mm.
10. A method for preparing an energy efficient retroreflective sheeting for use on a dual-glass solar back sheet as defined in any one of claims 1-9, comprising the steps of:
s1, extruding and molding base material resin in a double screw;
s2, coating thermosetting light-accumulating resin slurry on the S1;
s3, carrying out compression molding on the S2 material in a mold;
s4, plating a reflective coating on the surface of the S3;
s5, plating an ultraviolet-proof coating on the surface of the S4;
s6, plating an infrared-proof coating on the surface of the S5;
and S7, coating a coating resin on the surface of the S6.
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