CN113299782A - Transparent backboard with high-reflectivity black grid and preparation method thereof - Google Patents
Transparent backboard with high-reflectivity black grid and preparation method thereof Download PDFInfo
- Publication number
- CN113299782A CN113299782A CN202110644920.7A CN202110644920A CN113299782A CN 113299782 A CN113299782 A CN 113299782A CN 202110644920 A CN202110644920 A CN 202110644920A CN 113299782 A CN113299782 A CN 113299782A
- Authority
- CN
- China
- Prior art keywords
- transparent
- black
- layer
- resin
- reflectivity
- 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.)
- Granted
Links
- 238000002310 reflectometry Methods 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title description 16
- 239000000758 substrate Substances 0.000 claims abstract description 52
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000000049 pigment Substances 0.000 claims abstract description 17
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 15
- 238000001723 curing Methods 0.000 claims description 53
- 239000004925 Acrylic resin Substances 0.000 claims description 48
- 229920000178 Acrylic resin Polymers 0.000 claims description 48
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 42
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 42
- 238000007639 printing Methods 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 35
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 26
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 239000003822 epoxy resin Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 229920000647 polyepoxide Polymers 0.000 claims description 21
- 229920005749 polyurethane resin Polymers 0.000 claims description 19
- 239000012948 isocyanate Substances 0.000 claims description 18
- 150000002513 isocyanates Chemical class 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 14
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 8
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 8
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 8
- 229920000053 polysorbate 80 Polymers 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000007602 hot air drying Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 5
- 239000002033 PVDF binder Substances 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 5
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 5
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 claims description 4
- WBWJXRJARNTNBL-UHFFFAOYSA-N [Fe].[Cr].[Co] Chemical compound [Fe].[Cr].[Co] WBWJXRJARNTNBL-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 238000007646 gravure printing Methods 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 claims description 3
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 claims description 3
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 claims description 3
- 229920000767 polyaniline Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 229920003180 amino resin Polymers 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 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 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 129
- 238000010248 power generation Methods 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 13
- 229920000728 polyester Polymers 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 7
- 239000004814 polyurethane Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229920006026 co-polymeric resin Polymers 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- HXMVNCMPQGPRLN-UHFFFAOYSA-N 2-hydroxyputrescine Chemical compound NCCC(O)CN HXMVNCMPQGPRLN-UHFFFAOYSA-N 0.000 description 2
- 241000269913 Pseudopleuronectes americanus Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical group O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical group NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- 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
- B32B27/06—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
- B32B27/08—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 of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4023—Coloured on the layer surface, e.g. ink
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to the technical field of solar cell back plates, in particular to a transparent back plate with high-reflectivity black grids, which comprises a transparent back plate substrate and a high-reflectivity black grid ink layer printed on the transparent back plate substrate, wherein the transparent back plate substrate comprises a weather-resistant layer, a transparent PET substrate layer and a transparent interface layer which are sequentially laminated from top to bottom, the high-reflectivity black grid ink layer is formed by coating grid ink, and the grid ink comprises the following raw materials in parts by weight: 30-70 parts of main resin, 5-10 parts of solvent, 20-70 parts of pigment and filler, 3-10 parts of curing agent and 2-10 parts of auxiliary agent. The transparent backboard has simple structure, achieves the black appearance effect by arranging the high-reflectivity black grid ink layer, has very high reflectivity in the infrared band, has the reflectivity of up to 30-75% in the 800-1600nm band, and fully utilizes the infrared energy of the band to generate electricity.
Description
Technical Field
The invention relates to the technical field of solar cell back plates, in particular to a transparent back plate with high-reflectivity black grids and a preparation method thereof.
Background
Solar energy is being widely applied as pollution-free renewable energy, the requirement on the power generation capacity of a solar cell is higher and higher in recent years, and the double-sided cell is developed rapidly. Compared with a traditional single-sided battery, the double-sided power generation further utilizes scattered sunlight on the back of the solar battery to generate power, so that the power generation capacity of the solar battery module is greatly improved. Meanwhile, in order to improve the utilization efficiency of photovoltaic power generation, the development of photovoltaic, local absorption and Building Integrated Photovoltaic (BIPV) technology for distributed users is encouraged, and in these occasions, higher requirements are required for the appearance of the solar cell module, which cannot be met by the conventional transparent back sheet or white grid transparent back sheet, and the black back sheet or black grid back sheet meets the market demands of the part.
At present, most of solar cells for photovoltaic power generation are of a crystalline silicon type, and the absorption and utilization of spectra of the cells are mainly concentrated in the visible light and near infrared light bands of 380-1200nm, however, the traditional black back plate or black grid back plate meets the appearance requirement, and meanwhile, about 95% of light with the cell gap of 380-1200nm is also absorbed by the back plate, so that the power generation capacity of the module is sacrificed. Therefore, the transparent back plate with the black grids, which can present a black appearance and partially reflect near infrared light, is more realistic.
The Chinese patent documents CN107759983A, CN108767042A, CN109244167A, CN110903700A, CN110828595A and other patents all disclose a transparent back plate with a white grid structure and corresponding materials and processes, the transparent back plate has excellent emissivity on visible light and near infrared bands, and the transparent back plate has an obvious effect of improving the power generation capacity of a double-sided solar cell module. However, the solar cell module is white grid, and the gaps between the solar cell pieces on the front side of the packaged solar cell module can show obvious white color, so that the solar cell module cannot be used in a plurality of areas with high aesthetic requirements.
The patent with the patent number of CN109713069A discloses a high-reflection solar cell back plate and a preparation method thereof, wherein the high-reflection solar cell back plate comprises a weather-resistant layer, a bonding layer, a PET substrate layer and a black functional coating layer which are sequentially arranged from top to bottom. The solar cell module has the advantages that the attractive effect is achieved, meanwhile, the infrared band has high reflectivity, the utilization efficiency of sunlight is improved, the temperature of the module is reduced, and the power generation efficiency of the cell is improved. However, the inner layer of the back plate facing the cell is completely black, has no transparent area, and is not suitable for packaging a double-sided solar cell module.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the transparent backboard with the high-reflectivity black grid, the transparent backboard comprises a grid ink layer, a weather-resistant layer, a transparent PET substrate layer and a transparent interface layer which are sequentially arranged from top to bottom, the black appearance effect is achieved through the arrangement of the high-reflectivity black grid ink layer, the reflectivity of an infrared band is high, the reflectivity of the infrared band is up to 30-75% in the 800-1600nm band, the infrared light energy of the band is fully utilized for power generation, the temperature of a system is also reduced, and the power generation potential of a battery can be further developed.
The invention also aims to provide a preparation method of the transparent backboard with the high-reflectivity black grid, which is simple and efficient, convenient to operate and control, high in quality of produced products, beneficial to industrial production, capable of avoiding the problems of complex equipment and process and huge equipment investment of curing processes such as electron beam irradiation, UV irradiation and microwave irradiation in the past, capable of improving the spectral reflectivity of the prepared black grid transparent backboard to near-infrared bands, capable of meeting the requirement on the decoration of a final solar cell module, capable of remarkably improving the power generation efficiency of the solar cell module and remarkable in economic and social benefits.
The purpose of the invention is realized by the following technical scheme: the transparent backboard with the high-reflectivity black grid comprises a transparent backboard substrate and a high-reflectivity black grid ink layer printed on the transparent backboard substrate, wherein the transparent backboard substrate comprises a weather-resistant layer, a transparent PET substrate layer and a transparent interface layer which are sequentially pressed from top to bottom, the high-reflectivity black grid ink layer is formed by coating grid ink, the thickness of the grid ink layer is 3-50 mu m, the thickness of the weather-resistant layer is 5-50 mu m, the thickness of the transparent PET substrate layer is 50-500 mu m, the thickness of the transparent interface layer is 3-30 mu m, and the grid ink comprises the following raw materials in parts by weight:
the transparent back plate comprises a grid ink layer, a weather-resistant layer, a transparent PET substrate layer and a transparent interface layer which are sequentially arranged from top to bottom, the black appearance effect is achieved through the arrangement of the high-reflectivity black grid ink layer, the reflectivity of an infrared band is high, the reflectivity of the infrared band is up to 30-75% in the 800-1600nm band and is far higher than the level of a traditional black grid or coating material (about 5%), the application of infrared energy power generation in the band is achieved through the scheme, the temperature of the system is also reduced, the power generation potential of the battery can be further excavated, and meanwhile, the structure has strong absorption on a 380-800 nm visible light band, so that the appearance is black, and the requirement on the decoration of a final solar battery component is met. The transparent backboard substrate is a backboard material capable of being used for packaging a double-sided solar cell module, is transparent in color, has a transmittance of about 90% in a visible light wave band, and can effectively block water vapor and ultraviolet light to protect internal materials of the solar cell module, and the electrical insulation performance of the transparent backboard substrate can ensure the safe operation of a system. According to the transparent back plate with the high-reflectivity black grids, the high-reflectivity black grid ink layer printed on the substrate of the transparent back plate is printed at the gap part of the solar cell, so that the near-infrared band spectrum in the sunlight of the gap of the cell and the part, which is not shielded by the cell, near the frame of the solar cell module has an obvious reflection effect, the near-infrared band spectrum is reflected to the surface of the cell to be absorbed for power generation, and the power generation capacity is improved.
Preferably, each part of the solvent is at least one of toluene, xylene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, methyl ethyl ketone, methyl isobutyl ketone and N-methylpyrrolidone.
Preferably, each part of the pigment and filler is at least one of iron-chromium black, copper-chromium black, iron-manganese black, chromium-cobalt-iron black, nickel-chromium black, titanium-iron black, aniline black, perylene black, calcium carbonate, barium sulfate, talcum powder, silicon dioxide, bentonite, montmorillonite, kaolin, white carbon black and alumina.
The pigment and filler adopted in the invention is black blended by superimposing three colors, and has strong absorption on a visible light wave band of 380-800 nm, so that the pigment and filler has a black appearance effect.
Preferably, each part of the curing agent is at least one of isocyanate curing agent, imidazole curing agent, amine curing agent and dicyandiamide curing agent. The isocyanate curing agent adopts a Covestro Korsakochu isocyanate curing agent Desmodur BL3370MPA and a Covestro Korsako isocyanate curing agent Desmodur IL 1451; the amine curing agent is hydroxyethyl ethylenediamine AEEA curing agent produced by Guangzhou Qingchen Biotechnology limited company; the dicyandiamide curing agent is a dicyandiamide curing agent produced by Henan Shaoyi chemical products Limited.
The good heat resistance and mechanical property adopted by the invention are matched with the main resin, so that the grid ink can be cured in time when being coated and formed into a film, and a good curing effect is achieved.
Preferably, the weather-resistant layer is made of any one of polyvinylidene fluoride, polyvinyl fluoride, tetrafluoroethylene-vinyl ether copolymer, chlorotrifluoroethylene-vinyl ether copolymer, and polyethylene terephthalate resin. The transparent interface layer is made of at least one of alkyd resin, polyester resin, acrylic resin, polyurethane resin, tetrafluoroethylene-vinyl ether copolymer resin, chlorotrifluoroethylene-vinyl ether copolymer resin, epoxy resin, phenolic resin and terpene resin.
The weather-resistant layer is made of the material, so that the heat resistance, the insulating property and the aging resistance of the back transparent backboard can be enhanced.
Preferably, each part of the main resin is at least one of polyurethane resin, polyester resin, modified acrylic resin, fluorocarbon resin, epoxy resin, polyvinyl acetate, amino resin and isocyanate. More preferably, each part of the main resin is a mixture of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 0.8-1.2:0.6-1.0:0.1-0.5: 0.4-0.8.
The specific main resin adopted in the raw materials of the grid ink adopted by the high-reflectivity black grid ink layer is a mixed main resin composed of the specific resins according to the proportion, the polyurethane resin adopted in the mixed main resin has the characteristics of high strength, tear resistance, wear resistance and the like, and meanwhile, the adhesive force of the grid ink can be improved.
Preferably, the modified acrylic resin comprises the following raw materials in parts by weight:
preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 35-55 ℃, and continuously stirring at the speed of 600-900r/min for 30-70min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 10-20min at the frequency of 6000-10000Hz, then adding nano titanium dioxide, and continuously stirring for 20-40min at the speed of 300-450r/mim to obtain the modified acrylic resin.
The modified acrylic resin is prepared by adopting the raw materials and the preparation method, and the modified acrylic resin prepared by the raw materials and the preparation method increases the reflection capability to sunlight, particularly the infrared reflectivity in the sunlight on the basis of ensuring the excellent performance of a coating film, and is further favorable for assisting in enhancing the reflectivity of a grid ink layer to an infrared band, wherein the reflectivity of the grid ink layer in the 800-1600nm band is up to 30-75% and is far higher than the level of a traditional black grid or coating material (about 5%), the application of infrared energy power generation in the band is realized by the scheme, the temperature of a system is also reduced, and the power generation potential of a battery can be further developed. In the preparation process, the acrylic resin is activated by firstly adopting the surfactant Tween 80, the surface of the acrylic resin is modified by utilizing the nano titanium dioxide, so that the interior of the acrylic resin is filled and reinforced conveniently, and meanwhile, the dicumyl peroxide is used as a cross-linking agent, so that the modification effect on the acrylic resin is remarkably improved. The grid ink layer of the modified acrylic resin is utilized to realize the three-in-one characteristics of solar ray reflection, infrared light wave radiation and heat conduction resistance, so that the good heat insulation and temperature reduction effects are achieved, the transparent backboard with the high-reflectivity black grid is finally prepared by improving the preparation process, the reflectivity of the transparent backboard to the 800-plus 1600nm wave band reaches 30-75%, the infrared light energy of the wave band is fully utilized for power generation, the temperature of the system is also reduced, and the power generation potential of the battery can be further developed.
The invention also provides a preparation method of the transparent backboard with the high-reflectivity black grid, which comprises the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 30-60min at the speed of 1000-2000r/min, grinding for 1-4 times by using a sand mill, filtering to obtain a black ink main agent with the fineness of below 10 mu m, adding the curing agent, the auxiliary agent and the solvent, continuously stirring for 30-60min, and filtering to obtain the grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 0.5-3min at the temperature of 150-180 ℃ to obtain a transparent PET substrate with a single surface coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through an adhesive pasting, melt extrusion or wet coating process to obtain a transparent backboard substrate for later use, wherein the temperature during melt extrusion is 50-300 ℃, and the adhesive is at least one of a polyester adhesive, a polyurethane adhesive, an acrylic resin adhesive and an epoxy resin adhesive;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a screen printing or gravure printing process, and curing and molding at the temperature of 150-180 ℃ by adopting a hot air drying mode for 0.5-3min to finally obtain the transparent backboard with the high-reflectivity black grid.
The transparent backboard with the high-reflectivity black grid is prepared by the method, has high reflectivity to an infrared band, particularly has reflectivity up to 30-75% in the 800-1600nm band, fully utilizes the infrared light energy of the band to generate electricity, and also reduces the temperature of the system. The adopted process is simple, the equipment investment is small, and the equipment process and huge equipment investment of complex curing processes such as electron beam irradiation, UV irradiation, microwave irradiation and the like are avoided; the transparent back plate product has excellent reliability and higher spectral reflectivity of near-infrared wave bands, meets the requirement on the decoration of the final solar cell module, obviously improves the power generation efficiency of the solar cell module, and has obvious economic and social benefits.
The invention has the beneficial effects that: the transparent backboard comprises the grid ink layer, the weather-resistant layer, the transparent PET substrate layer and the transparent interface layer which are sequentially arranged from top to bottom, the black appearance effect is achieved through the high-reflectivity black grid ink layer, the reflectivity of an infrared band is high, the reflectivity of the infrared band is up to 30-75% in the 800-plus 1600nm band, the infrared light energy of the band is fully utilized for power generation, the temperature of the system is also reduced, and the power generation potential of a battery can be further excavated.
The preparation method of the transparent back plate with the high-reflectivity black grid is simple and efficient, is convenient to operate and control, has high quality of produced products, is beneficial to industrial production, avoids the problems of complex equipment and process and huge equipment investment of the traditional electron beam irradiation, UV irradiation, microwave irradiation and other curing processes, improves the spectral reflectivity of the prepared transparent back plate to near-infrared bands, meets the requirement on the decoration of the final solar cell module, obviously improves the power generation efficiency of the solar cell module, and has obvious economic and social benefits.
Detailed Description
The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.
Example 1
The utility model provides a transparent backplate with high reflectivity black net, includes transparent backplate base member and the high reflectivity black net printing ink layer of printing on transparent backplate base member, transparent backplate base member includes resistant layer, transparent PET base member layer and the transparent interface layer of top-down pressfitting in proper order, high reflectivity black net printing ink layer is formed by the coating of net printing ink, and the thickness of net printing ink layer is 3 mu m, the thickness of resistant layer is 5 mu m, the thickness of transparent PET base member layer is 50 mu m, the thickness of transparent interface layer is 3 mu m, net printing ink includes the following weight parts's raw materials:
each part of the solvent is butyl acetate.
Each part of the pigment and filler is copper chromium black.
Each part of the curing agent is isocyanate curing agent which adopts Covestro Kostesia isocyanate curing agent Desmodur BL3370 MPA.
The weather-resistant layer is made of polyvinylidene fluoride. The transparent interface layer is made of fluorocarbon resin, and the fluorocarbon resin is ZEFFLE GK570 fluorocarbon resin of Dajinflurane chemical (China) limited company.
Each part of the main resin is a mixture consisting of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 0.8:0.6:0.1:0.4, and the epoxy resin is E51 epoxy resin produced by ba ling petrochemical production.
The modified acrylic resin comprises the following raw materials in parts by weight:
preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 35 ℃, and continuously stirring at a speed of 600r/min for 30min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 10min at the frequency of 6000Hz, then adding the nano titanium dioxide, and continuously stirring for 20min at the speed of 300r/mim to obtain the modified acrylic resin.
The preparation method of the transparent backboard with the high-reflectivity black grid is prepared by the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 30min at the speed of 1000r/min, grinding for 1 time by using a sand mill, filtering to obtain a main black ink agent with the fineness of below 10 mu m, adding the curing agent, the auxiliary agent and the solvent, continuously stirring for 30min, and filtering to obtain the grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 0.5min at the temperature of 150 ℃ to obtain a transparent PET substrate with a single side coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through a wet coating process to obtain a transparent backboard substrate for later use, wherein the bonding temperature is 80 ℃, the adhesive is a polyester adhesive, and the polyester adhesive is M760UV rolling journal science and technology Limited in Shenzhen city;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a screen printing process, and curing and molding at the temperature of 150 ℃ in a hot air drying mode for 0.5min to finally obtain the transparent backboard with the high-reflectivity black grid.
Example 2
The utility model provides a transparent backplate with high reflectivity black net, includes transparent backplate base member and the high reflectivity black net printing ink layer of printing on transparent backplate base member, transparent backplate base member includes resistant layer, transparent PET base member layer and the transparent interface layer of top-down pressfitting in proper order, high reflectivity black net printing ink layer is formed by the coating of net printing ink, and the thickness of net printing ink layer is 12 mu m, the thickness of resistant layer is 16 mu m, the thickness of transparent PET base member layer is 160 mu m, the thickness of transparent interface layer is 9 mu m, net printing ink includes the following weight parts's raw materials:
each of the solvents was xylene.
Each part of the pigment and filler is a mixture of iron chromium black and copper chromium black according to the weight ratio of 1.0: 1.0.
Each part of the curing agent is an amine curing agent, and the amine curing agent is hydroxyethyl ethylene diamine AEEA curing agent produced by Guangzhou Qingchen Biotech limited.
The weather-resistant layer is made of polyvinylidene fluoride.
The transparent interface layer is made of tetrafluoroethylene-vinyl ether copolymer resin.
Each part of the main resin is a mixture consisting of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 0.9:0.7:0.2:0.5, the polyurethane resin adopts polyurethane resin emulsion Silok1099R, and the epoxy resin adopts E51 epoxy resin produced by the ba ling petrochemical industry.
The modified acrylic resin comprises the following raw materials in parts by weight:
the filler is zirconia.
Preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 40 ℃, and continuously stirring at 675r/min for 40min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment at the frequency of 7000Hz for 13min, then adding the nano titanium dioxide, and continuously stirring at the speed of 330r/mim for 250min to obtain the modified acrylic resin.
The preparation method of the transparent backboard with the high-reflectivity black grid is prepared by the following steps:
1) adding main functional resin, pigment filler, auxiliary agent and solvent into a stirring device according to parts by weight, continuously stirring at a speed of 1250r/min for 38min, grinding for 2 times by using a sand mill, filtering to obtain a main black ink agent with the fineness of less than 10 mu m, adding a curing agent, the auxiliary agent and butyl acetate, continuously stirring for 38min, and filtering to obtain grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 1.1min at 157 ℃ to obtain a transparent PET substrate with a single side coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through an adhesive pasting process to obtain a transparent backboard substrate for later use, wherein the temperature is 110 ℃, the adhesive is a polyurethane adhesive, and the polyurethane adhesive is Dow chemical 1045L 1045H polyurethane;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a gravure printing process, and curing and molding at 158 ℃ in a hot air drying mode for 1.1min to finally obtain the transparent backboard with the high-reflectivity black grid.
Example 3
The utility model provides a transparent backplate with high reflectivity black net, includes transparent backplate base member and the high reflectivity black net printing ink layer of printing on transparent backplate base member, transparent backplate base member includes resistant layer, transparent PET base member layer and the transparent interface layer of top-down pressfitting in proper order, high reflectivity black net printing ink layer is formed by the coating of net printing ink, and the thickness of net printing ink layer is 25 mu m, the thickness of resistant layer is 28 mu m, the thickness of transparent PET base member layer is 275 mu m, the thickness of transparent interface layer is 15 mu m, net printing ink includes the raw materials of following parts by weight:
each part of the solvent is propylene glycol methyl ether acetate.
Each part of the pigment and filler is a mixture of iron manganese black, chromium cobalt iron black, calcium carbonate and alumina according to the weight ratio of 0.8:0.60: 0.4.
Each part of the curing agent is dicyandiamide curing agent, and the dicyandiamide curing agent is dicyandiamide curing agent produced by Henan Ruiyi chemical products Limited.
The weather-resistant layer is made of polyethylene terephthalate resin. The transparent interface layer is made of chlorotrifluoroethylene-vinyl ether copolymer resin.
Each part of the main resin is a mixture consisting of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 1.0:0.8:0.3:0.6, wherein the polyurethane resin is polyurethane resin emulsion Silok1099R, and the epoxy resin is E51 epoxy resin produced by the ba ling petrochemical industry.
The modified acrylic resin comprises the following raw materials in parts by weight:
preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 45 ℃, and continuously stirring at a speed of 750r/min for 50min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 15min at the frequency of 8000Hz, adding nano titanium dioxide, and continuously stirring for 30min at the speed of 375r/mim to obtain the modified acrylic resin.
The preparation method of the transparent backboard with the high-reflectivity black grid is prepared by the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 45min at the speed of 1500r/min, grinding for 3 times by using a sand mill, filtering to obtain a main black ink agent with the fineness of below 10 mu m, adding the curing agent, the auxiliary agent and the solvent, continuously stirring for 45min, and filtering to obtain the grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 1.7min at 165 ℃ to obtain a transparent PET substrate with a single side coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through a melt extrusion process to obtain a transparent backboard substrate for later use, wherein the temperature during melt extrusion is 175 ℃, the adhesive is a polyester adhesive, and the polyester adhesive is M760UV of rolling Yang science and technology Limited in Shenzhen city;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a screen printing process, and curing and molding at 165 ℃ in a hot air drying mode for 1.7min to finally obtain the transparent backboard with the high-reflectivity black grid.
Example 4
The utility model provides a transparent backplate with high reflectivity black net, includes transparent backplate base member and the high reflectivity black net printing ink layer of printing on transparent backplate base member, transparent backplate base member includes weather resistant layer, transparent PET base member layer and the transparent interface layer of top-down pressfitting in proper order, high reflectivity black net printing ink layer is formed by the coating of net printing ink, and the thickness of net printing ink layer is 38 mu m, the thickness of weather resistant layer is 39 mu m, the thickness of transparent PET base member layer is 385 mu m, the thickness of transparent interface layer is 23 mu m, net printing ink includes the following weight parts's raw materials:
each part of the solvent is methyl isobutyl ketone.
Each part of the pigment and filler is a mixture consisting of aniline black, perylene black, silicon dioxide, kaolin and alumina according to the weight ratio of 1.5:1.5:1.2:1.0: 0.5.
Each part of the curing agent is isocyanate curing agent which adopts Covestro Kostesia isocyanate curing agent Desmodur IL 1451.
The weather-resistant layer is made of polyethylene terephthalate resin. The transparent interface layer is made of terpene resin.
Each part of the main resin is a mixture consisting of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 1.1:0.9:0.4:0.7, the polyurethane resin adopts polyurethane resin emulsion Silok1099R, and the epoxy resin adopts E51 epoxy resin produced by the ba ling petrochemical industry.
The modified acrylic resin comprises the following raw materials in parts by weight:
preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 50 ℃, and continuously stirring at a speed of 825r/min for 60min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 18min at the frequency of 9000Hz, adding nano titanium dioxide, and continuously stirring at the speed of 400r/mim for 35min to obtain the modified acrylic resin.
The preparation method of the transparent backboard with the high-reflectivity black grid is prepared by the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 52min at the speed of 1750r/min, grinding for 4 times by using a sand mill, filtering to obtain a main black ink agent with the fineness of less than 10 mu m, adding the curing agent, the auxiliary agent and butyl acetate, continuously stirring for 52min, and filtering to obtain the grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 2.3min at the temperature of 172 ℃ to obtain a transparent PET substrate with a single side coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through an adhesive pasting, melt extrusion or wet coating process to obtain a transparent backboard substrate for later use, wherein the temperature during melt extrusion is 235 ℃, the adhesive is a polyurethane adhesive, and the polyurethane adhesive is Dow chemical 1045L 1045H polyurethane;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a gravure printing process, and curing and molding at 172 ℃ in a hot air drying mode for 2.3min to finally obtain the transparent backboard with the high-reflectivity black grid.
Example 5
The utility model provides a transparent backplate with high reflectivity black net, includes transparent backplate base member and the high reflectivity black net printing ink layer of printing on transparent backplate base member, transparent backplate base member includes resistant layer, transparent PET base member layer and the transparent interface layer of top-down pressfitting in proper order, high reflectivity black net printing ink layer is formed by the coating of net printing ink, and the thickness of net printing ink layer is 50 mu m, the thickness of resistant layer is 50 mu m, the thickness of transparent PET base member layer is 500 mu m, the thickness of transparent interface layer is 30 mu m, net printing ink includes the following weight parts's raw materials:
each part of the solvent is a mixture of toluene, ethyl acetate, methyl ethyl ketone and N-methyl pyrrolidone according to the weight ratio of 1.5:0.5:0.5: 0.2.
Each part of the pigment filler is a mixture of chromium-cobalt-iron black, nickel-chromium black, chromium black and aluminum oxide according to the weight ratio of 1.5:1.5:1.0: 1.0.
Each part of the curing agent is dicyandiamide curing agent, and the dicyandiamide curing agent is dicyandiamide curing agent produced by Henan Ruiyi chemical products Limited.
The weather-resistant layer is made of polyvinylidene fluoride. The transparent interface layer is made of alkyd resin.
Each part of the main resin is a mixture consisting of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 1.2:1.0:0.5:0.8, the polyurethane resin adopts polyurethane resin emulsion Silok1099R, and the epoxy resin adopts E51 epoxy resin produced by the ba ling petrochemical industry.
The modified acrylic resin comprises the following raw materials in parts by weight:
the filler is modified aluminum powder, and the modified aluminum powder is flaky aluminum powder coated with titanium dioxide on the surface.
Preferably, the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 55 ℃, and continuously stirring at the speed of 900r/min for 70min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 20min at the frequency of 10000Hz, adding nano titanium dioxide, and continuously stirring for 40min at the speed of 450r/mim to obtain the modified acrylic resin.
The preparation method of the transparent backboard with the high-reflectivity black grid is prepared by the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 60min at the speed of 2000r/min, grinding for 4 times by using a sand mill, filtering to obtain a main black ink agent with the fineness of below 10 mu m, adding the curing agent, the auxiliary agent and the solvent, continuously stirring for 60min, and filtering to obtain the grid ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 3min at the temperature of 180 ℃ to obtain a transparent PET substrate with a single side coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through a melt extrusion process to obtain a transparent backboard substrate for later use, wherein the temperature during melt extrusion is 300 ℃, the adhesive is a polyester adhesive, and the polyester adhesive is M760UV of rolling Yang science and technology Limited in Shenzhen city;
4) and (2) attaching the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a screen printing process, and curing and molding at the temperature of 180 ℃ in a hot air drying mode for 3min to finally obtain the transparent backboard with the high-reflectivity black grid.
Comparative example 1
This comparative example differs from example 1 above in that: the transparent backsheet of this comparative example was not provided with a reflectivity black grid ink layer. The remainder of this comparative example is the same as example 1 and will not be described again here.
Comparative example 2
This comparative example differs from example 3 above in that: the acrylic resin was not modified in the raw materials of the main resin of this comparative example, and the rest of the raw materials were mixed in the ratio of example 3. The remainder of this comparative example is the same as example 3 and will not be described again here.
Comparative example 3
This comparative example differs from example 5 above in that: the raw materials of the modified acrylic resin of the comparative example are aluminum powder directly, and the rest raw materials are mixed according to the proportion of example 5. The remainder of this comparative example is the same as example 5 and will not be described again here.
The transparent back sheets with high-reflectance black grids obtained in examples 1, 3 and 5 and comparative examples 1 to 3 were subjected to performance tests, and the results are shown in table 1:
1. reflectivity and transmittance
The test method refers to a spectrophotometer method with an integrating sphere in the standard GB/T29848 ethylene-vinyl acetate copolymer (EVA) adhesive film for packaging photovoltaic modules, and a test instrument comprises the following steps: ultraviolet visible spectrophotometer, test conditions: 400 nm-1200 nm.
2. Volume resistivity
The test method refers to the standard GB/T31034 insulating back plate for crystalline silicon solar cell modules; sample size: 100mm by 100 mm; and (3) testing conditions are as follows: the test voltage is 1000V.
3. Yellowing index
The test method refers to the standard GB/T2409 'test method for yellow index of plastics'; sample size: 100mm by 100 mm; and (3) testing conditions are as follows: +25 ℃ 50% RH.
4. Elongation at break
The test method refers to the standard GB/T13542.2 film for electrical insulation; sample size: 200mm by 200 mm; stretching speed: 100 mm/min.
5. Adhesion force
The test method refers to the standard GB/T31034 insulating back plate for crystalline silicon solar cell modules; sample size: 200 mm. And (3) testing conditions are as follows: +25 ℃ 50% RH.
TABLE 1
As can be seen from the data in the table, the transparent back sheets with high-reflectivity black grids prepared in the embodiments 1, 3 and 5 of the present invention have good light transmittance and reflection performance, and also have excellent reliability in the aspects of heat resistance, insulation performance, aging resistance, etc.; the high-reflectivity black grid ink layer printed on the transparent backboard substrate is printed at the gap position of the solar cell, so that the near-infrared band spectrum in the sunlight of the gap of the cell and the part, which is not shielded by the cell, near the frame of the solar cell module has an obvious reflection effect, the near-infrared band spectrum is reflected to the surface of the cell and is absorbed for power generation, and the power generation capacity is improved.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. A transparent backplate with high reflectivity black grid which characterized in that: including transparent backplate base member and the black net printing ink layer of high reflectivity of printing on transparent backplate base member, transparent backplate base member includes that top-down is pressfitting in proper order resistant layer, transparent PET base member layer and transparent interface layer, the black net printing ink layer of high reflectivity is formed by the coating of net printing ink, net printing ink includes the raw materials of following part by weight:
2. a transparent backplane with a high reflectivity black grid according to claim 1, wherein: each part of the main resin is at least one of polyurethane resin, polyester resin, modified acrylic resin, fluorocarbon resin, epoxy resin, polyvinyl acetate, amino resin and isocyanate.
3. A transparent backplane with a high reflectivity black grid according to claim 1, wherein: each part of the main resin is a mixture of polyurethane resin, modified acrylic resin, epoxy resin and isocyanate according to the weight ratio of 0.8-1.2:0.6-1.0:0.1-0.5: 0.4-0.8.
4. A transparent backplane with a high reflectivity black grid according to claim 1, wherein: each part of the solvent is at least one of toluene, xylene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, methyl ethyl ketone, methyl isobutyl ketone and N-methyl pyrrolidone.
5. A transparent backplane with a high reflectivity black grid according to claim 1, wherein: each part of the pigment and filler is at least one of iron-chromium black, copper-chromium black, iron-manganese black, chromium-cobalt-iron black, nickel-chromium black, titanium-iron black, aniline black, perylene black, calcium carbonate, barium sulfate, talcum powder, silicon dioxide, bentonite, montmorillonite, kaolin, white carbon black and alumina.
6. A transparent backplane with a high reflectivity black grid according to claim 1, wherein: each part of the curing agent is at least one of isocyanate curing agent, imidazole curing agent, amine curing agent and dicyandiamide curing agent.
7. A transparent backplane with a high reflectivity black grid according to claim 1, wherein: the weather-resistant layer is made of any one of polyvinylidene fluoride, polyvinyl fluoride, tetrafluoroethylene-vinyl ether copolymer, chlorotrifluoroethylene-vinyl ether copolymer or polyethylene terephthalate resin.
8. A transparent backplane with a high reflectivity black grid according to claim 2, wherein: the modified acrylic resin comprises the following raw materials in parts by weight:
9. a transparent backplane with a high reflectivity black grid according to claim 8, wherein: the modified acrylic resin is prepared by the following steps:
s1, adding Tween 80 into acrylic resin according to parts by weight, heating to 35-55 ℃, and continuously stirring at the speed of 600-900r/min for 30-70min to obtain a mixture A for later use;
s2, adding dicumyl peroxide into the mixture A obtained in the step S1 according to the parts by weight, carrying out ultrasonic treatment for 10-20min at the frequency of 6000-10000Hz, then adding nano titanium dioxide, and continuously stirring for 20-40min at the speed of 300-450r/mim to obtain the modified acrylic resin.
10. A method for preparing a transparent back sheet with a high-reflectivity black grid according to any one of claims 1 to 9, wherein: is prepared by the following steps:
1) adding the main functional resin, the pigment filler, the auxiliary agent and the solvent into a stirring device according to the parts by weight, continuously stirring for 30-60min at the speed of 1000-2000r/min, grinding for 1-4 times by using a sand mill, filtering to obtain a black ink main agent with the fineness of below 10 mu m, adding the curing agent, the auxiliary agent and the solvent, continuously stirring for 30-60min, and filtering to obtain black grid printing ink for later use;
2) coating the transparent interface layer coating on the lower surface of the transparent PET substrate layer through a coating machine, and baking for 0.5-3min at the temperature of 150-180 ℃ to obtain a transparent PET substrate with a single surface coated with a transparent interface layer for later use;
3) attaching the weather-resistant layer to the other surface of the transparent PET substrate with the transparent interface layer coated on the single surface obtained in the step 2) through an adhesive pasting, melt extrusion or wet coating process to obtain a transparent backboard substrate for later use, wherein the temperature during melt extrusion is 50-300 ℃;
4) adhering the grid ink obtained in the step 1) to a transparent interface layer of a transparent backboard substrate through a screen printing or gravure printing process, and curing and molding at the temperature of 150-180 ℃ by adopting a hot air drying mode for 0.5-3min to finally obtain the transparent backboard with the high-reflectivity black grid; the thickness of the coating grid ink layer is 3-50 μm.
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