CN110323287A - A kind of fluorocarbon layer coating fluid that solvent resistant wipes and the solar energy backboard using the coating fluid - Google Patents
A kind of fluorocarbon layer coating fluid that solvent resistant wipes and the solar energy backboard using the coating fluid Download PDFInfo
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- CN110323287A CN110323287A CN201910467045.2A CN201910467045A CN110323287A CN 110323287 A CN110323287 A CN 110323287A CN 201910467045 A CN201910467045 A CN 201910467045A CN 110323287 A CN110323287 A CN 110323287A
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- China
- Prior art keywords
- coating fluid
- fluorocarbon
- fluorocarbon layer
- layer coating
- solar energy
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 title claims abstract description 181
- 238000000576 coating method Methods 0.000 title claims abstract description 95
- 239000011248 coating agent Substances 0.000 title claims abstract description 94
- 239000012530 fluid Substances 0.000 title claims abstract description 68
- 239000002904 solvent Substances 0.000 title abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 74
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000012948 isocyanate Substances 0.000 claims abstract description 42
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 40
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 37
- 239000003960 organic solvent Substances 0.000 claims abstract description 31
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 25
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 20
- 239000000470 constituent Substances 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 52
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 52
- -1 polytetrafluoroethylene Polymers 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 25
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 19
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 16
- 229910052731 fluorine Inorganic materials 0.000 claims description 16
- 239000011737 fluorine Substances 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 3
- 238000005984 hydrogenation reaction Methods 0.000 claims description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 16
- 239000007788 liquid Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 14
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 13
- 230000032683 aging Effects 0.000 description 13
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 13
- 238000001723 curing Methods 0.000 description 12
- 238000003682 fluorination reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000011056 performance test Methods 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- 229920002125 Sokalan® Polymers 0.000 description 11
- 239000000654 additive Substances 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 11
- 150000002148 esters Chemical class 0.000 description 11
- 239000004584 polyacrylic acid Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- KPTLPIAOSCGETM-UHFFFAOYSA-N benzene 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O.c1ccccc1 KPTLPIAOSCGETM-UHFFFAOYSA-N 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical compound [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- LRSSIJJNDFOLHD-UHFFFAOYSA-N benzylbenzene toluene Chemical compound C1(=CC=CC=C1)CC1=CC=CC=C1.C1(=CC=CC=C1)C LRSSIJJNDFOLHD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to solar energy backplane technology fields, and in particular to a kind of fluorocarbon layer coating fluid and the solar energy backboard using the coating fluid.In order to solve the problems, such as that existing fluorocarbon layer poor solvent resistance, the present invention provide a kind of fluorocarbon layer coating fluid that solvent resistant wipes and the solar energy backboard using the coating fluid.The fluorocarbon layer coating fluid includes 40%~70% fluorocarbon resin, 20%~50% titanium dioxide, 1%~5% flatting silica, 0.3%~0.8% polyacrylate, 5%~15% isocyanates, and the percentage is weight percentage；The total amount of foregoing constituents is 100%；Foregoing constituents, which are dissolved in organic solvent, forms coating fluid.The fluorocarbon layer solvent resistant wiping that fluorocarbon layer coating fluid provided by the invention is formed.Internal layer (fluorocarbon layer) using the solar energy backboard of the coating fluid has solvent resistance.
Description
Technical field
The present invention relates to solar energy backplane technology fields, in particular to a kind of fluorocarbon layer coating fluid and use the painting
The solar energy backboard of cloth liquid.
Background technique
In photovoltaic module, backboard is very important encapsulating material.The backboard that photovoltaic industry uses at present is substantially all
Using multilayered structure as a kind of mainstream backboard carry out using.Wherein in order to ensure outdoor weathe resistance use, towards air layer
Material be generally used fluorine-contained film, middle layer is the PET of hydrolytic resistance, and inner layer material is usually that coating material is either resistance to
Time property film.
Wherein in order to ensure double-side fluorine back veneer material, internal layer is a kind of to take into account Cost And Performance most using fluorocarbon coating
Good selection.Because this backboard has multilayered structure, how to ensure inner layer material in the stabilization of multiple working procedure during the preparation process
Property is most important.Internal layer fluorocarbon layer can be potentially encountered the problems such as solvent corrodes in the actual production process, so to ensure internal layer
The solvent resistance of fluorocarbon layer is all of great significance to backboard processing technology and photovoltaic module assembling.
Summary of the invention
In order to solve the problems, such as existing fluorocarbon layer poor solvent resistance, the fluorocarbon layer that the present invention provides a kind of solvent resistant wiping is applied
Cloth liquid and the solar energy backboard for using the coating fluid.The fluorocarbon layer solvent resistant that fluorocarbon layer coating fluid provided by the invention is formed is wiped
It wipes.Internal layer (fluorocarbon layer) using the solar energy backboard of the coating fluid has solvent resistance.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical solutions.
For the solvent resistant characteristic of backboard internal layer fluorocarbon material, the present invention provides a kind of fluorocarbon layer coating fluid, the coating
Liquid includes 40%~70% fluorocarbon resin, 20%~50% titanium dioxide, 1%~5% flatting silica, 0.3%~0.8%
Polyacrylate, 5%~15% isocyanates, the percentage are weight percentage.The fluorocarbon resin, titanium dioxide
Titanium, flatting silica, polyacrylate and isocyanates total amount be 100%, foregoing constituents, which are dissolved in organic solvent, forms fluorocarbon layer
Coating fluid.
The fluorocarbon layer coating fluid is also known as fluorocarbon coating.
Each component is limited in above-mentioned content range, can by fluorocarbon resin initial reaction under the high temperature conditions, then
50 DEG C of experience, the curing of 48 hours conditions form one layer of high-densit fluorocarbon layer in pet sheet face, can be with during pressing with EVA layer
Good solvent resistant wiping characteristic is shown, and still meets after being tested after experience hydrothermal aging test with QUV and uses characteristic.
The proportion of fluorocarbon layer coating fluid is limited within the above range, to fluorocarbon layer after the completion of curing and the corresponding sun
The solvent resistance of the internal layer of energy backboard, which has, more preferably manages property, so that final solar energy backboard product is able to satisfy photovoltaic module
The quality requirements used.
Further, the isocyanates is selected from hydrogenation benzene dimethylene diisocyanate (H6XDI).
Further, the isocyanates is selected from hydrogenation benzene dimethylene diisocyanate (H6XDI) tripolymer or more
Aggressiveness.H6XDI has the characteristics that weatherability is excellent, reactivity is low, in crosslinking curing compared to other kinds of isocyanates
After be not easy by external interference and destruction.
Further, the solid content of the fluorocarbon layer coating fluid is preferably 40%~60%.
Further, the solid content of the fluorocarbon layer coating fluid is preferably 40%~57%.
Further, the solid content of the fluorocarbon layer coating fluid is preferably 45%~50%.
Above-mentioned fluorocarbon layer coating fluid solid content is limited to the range, is conducive to fluorocarbon layer and is uniformly coated on substrate table
Face.
Further, the fluorocarbon resin be selected from Kynoar, polyvinyl fluoride, polytetrafluoroethylene (PTFE), polytrifluorochloroethylene,
One of polyhexafluoropropylene or at least two combination.
The characteristics of fluorocarbon resin is using fluorine carbon key high bond energy, the characteristics of weatherability may be implemented.
Further, the fluorocarbon resin is thermohardening type resin.
The fluorocarbon resin is provided by great Jin fluorination work.
Further, the titanium dioxide is rutile-type, has outstanding representation to resistance to UV characteristic.
Further, the titanium dioxide is that Du Pont provides.
Further, the flatting silica is silicon dioxide granule.
Further, the silicon dioxide granule is that Grace provides.
Further, the polyacrylate of addition is for fluorocarbon modified resin.
The polyacrylate is mainly used for regulating and controlling the bonding force (adhesive force) after the weather-proof test of fluorocarbon coating.
The polyacrylate is that Bi Ke chemistry provides.
Further, the isocyanates is curing agent.
Further, the isocyanates is that Mitsui Chemicals provides.
The organic solvent be selected from ethyl acetate, butyl acetate, one of butanone or cyclohexanone or at least two group
It closes.
Further, the fluorocarbon layer coating fluid includes 56%~70% fluorocarbon resin, 20%~28.6% dioxy
Change titanium, 2%~4.7% flatting silica, 0.3%~0.8% polyacrylate, 5%~12.2% isocyanates, it is aforementioned at
Part total amount be 100%, aforementioned ingredients are dissolved in organic solvent and form coating fluid, the solid content of coating fluid is 40%~
57%.Above-mentioned technical proposal includes embodiment 1-3, embodiment 5 and embodiment 8.
Further, the fluorocarbon layer coating fluid include 56%~60% fluorocarbon resin, the two of 25.5%~28.6%
Titanium oxide, 3%~4% flatting silica, 0.4%~0.5% polyacrylate, 10%~12% isocyanates, it is aforementioned at
Part total amount be 100%, aforementioned ingredients are dissolved in organic solvent and form coating fluid, the solid content of coating fluid is 45%~
50%.Above-mentioned technical proposal includes embodiment 2,3 embodiments and 5 embodiments.
Fluorocarbon coating formula is limited within the scope of above-mentioned preferred parameter, it is ensured that the coating has solvent resistance excellent
It is different, and retention property meets actual use after hydrothermal aging and QUV aging.
The present invention also provides a kind of solar energy backboard, the solar energy backboard includes fluororine-carbon coating (abbreviation fluorocarbon layer), base
Material layer (abbreviation substrate) is bonded glue-line, fluorine film layer (abbreviation fluorine film).The fluorocarbon layer includes fluorocarbon resin, titanium dioxide, disappears
Light powder, polyacrylate and isocyanates etc..
Further, the substrate is translucent substrate, and the material of the substrate layer is selected from parylene's second two
Alcohol ester (PET).
Further, the joint adhesive is polyester-type joint adhesive.
Further, the fluorine film is PVF film or pvdf membrane.
Further, during the preparation process, the fluorocarbon layer material is first configured to fluorocarbon layer coating fluid, including 40%~
70% fluorocarbon resin, 20%~50% titanium dioxide, 1%~5% flatting silica, 0.3%~0.8% polyacrylate,
5%~15% isocyanates, the percentage are weight percentage.The total amount of aforementioned ingredients be 100%, by it is aforementioned at
Part, which is dissolved in organic solvent, forms coating fluid, and the solid content of coating fluid is 40%~60%.
Further, the solar energy backboard successively includes fluorocarbon layer, substrate layer, fitting glue-line and fluorine film layer.
Further, it is formed after fluorocarbon layer fluorocarbon layer coating fluid dry solidification provided by the present invention.
Further, the fluorocarbon layer with a thickness of 10~20 μm；The substrate layer is with a thickness of 250~300 μm；Described
Being bonded bondline thickness is 6~10 μm；The fluorine thicknesses of layers is 16~38 μm.Further, the fitting bondline thickness
It is 6~8 μm.
Further, the substrate layer with a thickness of 275-300 μm.
Further, the thickness of the fluorocarbon layer is preferably 14~20 μm.
Further, the thickness of the fluorocarbon layer is preferably 14~16 μm.
Solar energy backboard provided by the invention can be used for the outermost layer back board packaging material of photovoltaic module.Solar energy backboard
Fluorocarbon layer is internal layer, is placed in photovoltaic module side；Fluorine film layer is outer layer, is placed in the other side (air side) of photovoltaic module, is exposed
Dew is in air.
The preparation method of solar energy backboard provided by the invention the following steps are included:
Fluorocarbon layer coating fluid is coated on substrate surface, circulation baking oven heat cure processing is placed on, forms fluorocarbon layer；Then
It is coated with fitting glue-line in substrate another side, is placed on dry in circulation baking oven, fitting fluorine film layer；Finally do a slaking reaction.
Further, the temperature for recycling oven drying is 150 DEG C, and the time is 2 minutes.
Further, the drying temperature for being bonded glue-line is 90 DEG C, and the time is 2 minutes.
Further, slaking reaction temperature is 50~60 DEG C, and the time is 48 hours.
Further, substrate is the model KP20 substrate that duty nation in Ningbo provides.The substrate is also known as PET base material.
Above-mentioned coating process, thermal maturation technique, attaching process, can be set according to the prior art.
Before fluorocarbon layer coating fluid is coated on substrate surface, above-mentioned preparation method further includes configuration fluorocarbon layer coating fluid
The step of.
Fluorocarbon resin and content of titanium dioxide in fluorocarbon layer coating fluid provided by the invention are to ultraviolet ageing and damp and hot
Aging has a major impact, and the H6XDI of selection has the characteristics that reactivity is lower, has excellent weather resistance, and completes in cross-linking reaction
Afterwards, it can be corroded with solvent resistant.
Fluorocarbon layer provided by the invention realizes following technical effect:
1, after above-mentioned fluorocarbon layer coating fluid being solidified into fluorocarbon layer, ageing-resistant, high package strength may be implemented
Solar energy backboard inner layer material.
2, after above-mentioned fluorocarbon layer coating fluid being solidified into fluorocarbon layer, the fluorine film of appropriate mix bonds to obtain solar energy backboard,
The effect of coating solvent resistant erosion may be implemented in solar energy backboard, and meets every ageing properties test, meets outdoor aging
Testing requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of solar energy backboard provided by the invention.
Wherein the above drawings include the following reference numerals:
10, fluorine film layer；20, it is bonded glue-line；30, substrate layer；40, fluorocarbon layer
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combine.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of solar energy backboard membrane, including fluorine film layer 10, it is bonded glue-line 20, substrate layer 30
With fluorocarbon layer 40.Fluorine film layer is also referred to as the outer layer of solar energy backboard, and fluorocarbon layer is also referred to as the internal layer of solar energy backboard.
The preparation method of solar energy backboard membrane provided by the invention the following steps are included:
(1) fluorocarbon layer coating fluid is coated on substrate surface, is placed on circulation curing oven processing, forms fluorocarbon layer；(2)
By the semi-finished product substrate another side coating fitting glue-line of coated fluorocarbon layer, fitting glue-line is placed on circulation oven drying processing, then
Compound fluorine film layer；(3) by solar energy backboard finished product slaking reaction；(4) solar energy backboard and EVA layer standby simulation test is suppressed to seal
Fill intensity.
Further, the temperature of the circulation oven drying of fluorocarbon layer processing is 150 DEG C during (1), and the time is 2 minutes；
Further, the dry circulation oven temperature of (2) process joint adhesive is 90 DEG C, and the time is 2 minutes；
Further, the maturation process temperature of (3) process is 50 DEG C, and the time is 48 hours.
Further, the laminating parameters suggestion of (4) process is 145 DEG C of temperature, is vacuumized 6 minutes, is deflated 30 seconds, lamination pressure
Power 0.1MPa is laminated 12 minutes.
Further, the lamination EVA of selection is the F806 that Fox provides.
Further, the model KP20 substrate that the substrate selected provides for Ningbo duty nation.The substrate is also known as PET base
Material.
Before fluorocarbon layer coating fluid is coated on substrate surface, above-mentioned preparation method further includes that fluorocarbon layer is configured to fluorine
The step of carbon-coating coating fluid.
Solar energy backboard provided by the invention carries out following tests:
The adhesive force of fluorocarbon layer: according to the standard of GB 1720-1979 " paint film adhesion measuring method ", test fluorocarbon layer with
Adhesive force between substrate layer represents wherein 100/100 represents not demoulding, 90/100 and falls off 10%.
Package strength test: according to the mark of GB/T 31034-2014 " crystal silicon solar battery component insulating back panel "
Standard tests the adhesive strength of internal layer (fluorocarbon layer) and EVA, is carried out using 180 ° of peel test force methods.
QUV aging process: according to the mark of GB/T 31034-2014 " crystal silicon solar battery component insulating back panel "
Standard is handled with ultraviolet ageing lamp, and accumulation uv energy reaches 90kwh/ ㎡, takes out sample observation appearance.
Hydrothermal aging processing: according to the mark of GB/T 31034-2014 " crystal silicon solar battery component insulating back panel "
Standard is 85 DEG C in high temperature and humidity cabinet setting temperature, and humidity 85%, accumulated time 2000h takes out sample observation appearance simultaneously
Test package strength.
Solvent resistance test: being stained with ethyl acetate with non-dust cloth loading 500g and wipe back and forth 100 times, observes film surface appearance feelings
Condition.
Fluorocarbon layer coating fluid and fluorocarbon layer provided by the invention are further illustrated below in conjunction with embodiment.
Isocyanates H6XDI in embodiment is polymer.
Embodiment 1
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 65% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 20% rutile titanium dioxide, 2% flatting silica dioxy
SiClx, 0.8% polyacrylate resin, 12.2% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, shape
At the fluorocarbon layer coating fluid of solid content 40%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, titanium dioxide
Titanium is provided by E.I.Du Pont Company, and flatting silica is provided by Grace Gmbh., and polyacrylate is provided by Bi Ke chemistry, isocyanates
It is provided by Mitsui Chemicals, Inc., organic solvent is butyl acetate.
Coating is coated in 250 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 18 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 2
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 60% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 25.5% rutile titanium dioxide, 4% flatting silica,
0.5% polyacrylic acid ester additive, 10% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 45%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 15 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 3
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 56% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 28.6% rutile titanium dioxide, 4% flatting silica,
0.4% polyacrylic acid ester additive, 11% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 50%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 300 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 14 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 4
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 41% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 50% rutile titanium dioxide, 2% flatting silica,
0.4% polyacrylic acid ester additive, 6.6% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, it is formed solid
The fluorocarbon layer coating fluid of content 43%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin by great Jin fluorination work provide, titanium dioxide by
E.I.Du Pont Company provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three
Well chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 18 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 5
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 58% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 26.5% rutile titanium dioxide, 3% flatting silica,
0.5% polyacrylic acid ester additive, 12% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 48%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 16 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 6
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 40% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 39.3% rutile titanium dioxide, 5% flatting silica,
0.7% polyacrylic acid ester additive, 15% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 55%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 300 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 10 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 7
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 45% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 39.4% rutile titanium dioxide, 1% flatting silica,
0.6% polyacrylic acid ester additive, 14% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 60%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 17 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Embodiment 8
Fluorocarbon layer provided in this embodiment is coated with liquid and preparation method thereof
By 70% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 20% rutile titanium dioxide, 4.7% flatting silica,
0.3% polyacrylic acid ester additive, 5% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 57%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 250 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 20 μm.
The performance test results of fluorocarbon layer obtained are shown in Table 1.
Comparative example 1
The fluorocarbon layer that this comparative example provides is coated with liquid and preparation method thereof
By 58% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 26.5% rutile titanium dioxide, 3% flatting silica,
0.5% polyacrylic acid ester additive, 12% 4,4 '-diisocyanate (MDI) of diphenyl methane-.Aforementioned raw material is dispersed in
In organic solvent, the fluorocarbon layer coating fluid of solid content 48% is formed.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is fluorinated by great Jin
Work provides, and titanium dioxide is provided by E.I.Du Pont Company, and flatting silica is provided by Grace Gmbh., and polyacrylate has Bi Ke chemical
It provides, isocyanates is provided by Mitsui Chemicals, Inc., and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 16 μm.
Curing agent used is different in this comparative example, and the performance test results of fluorocarbon layer obtained are shown in Table 1.
Comparative example 2
The fluorocarbon layer that this comparative example provides is coated with liquid and preparation method thereof
By 58% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 26.5% rutile titanium dioxide, 3% flatting silica,
0.5% polyacrylic acid ester additive, 12% toluene di-isocyanate(TDI) (TDI).In organic solvent by aforementioned raw material dispersion, shape
At the fluorocarbon layer coating fluid of solid content 48%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, titanium dioxide
Titanium is provided by E.I.Du Pont Company, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, isocyanates
It is provided by Mitsui Chemicals, Inc., organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 16 μm.
Curing agent used is different in this comparative example, and the performance test results of fluorocarbon layer obtained are shown in Table 1.
Comparative example 3
The fluorocarbon layer that this comparative example provides is coated with liquid and preparation method thereof
By 65% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 27.5% rutile titanium dioxide, 4% flatting silica,
0.5% polyacrylic acid ester additive, 3% isocyanates H6XDI.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 48%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 16 μm.
Hardener dose is too low in this comparative example, and the performance test results of fluorocarbon layer obtained are shown in Table 1.
Comparative example 4
The fluorocarbon layer that this comparative example provides is coated with liquid and preparation method thereof
By 52.5% polytetrafluoroethylene (PTFE) type fluorocarbon resin, 25% rutile titanium dioxide, 2% flatting silica,
0.5% polyacrylic acid ester additive, 20% H6XDI isocyanates.In organic solvent by aforementioned raw material dispersion, formation contains admittedly
The fluorocarbon layer coating fluid of amount 48%.Wherein polytetrafluoroethylene (PTFE) type fluorocarbon resin is provided by great Jin fluorination work, and titanium dioxide is by shutting out
Company, nation provides, and flatting silica is provided by Grace Gmbh., and polyacrylate has the offer of Bi Ke chemistry, and isocyanates is by three wells
Chemical company provides, and organic solvent is butyl acetate.
Coating is coated in 275 μm of PET base material.
The fluorocarbon layer dry film of formation with a thickness of 16 μm.
Hardener dose is excessively high in this comparative example, and the performance test results of fluorocarbon layer obtained are shown in Table 1.
Fluorocarbon layer in embodiment 1 to 8 and comparative example 1 to 4 is subjected to following tests: according to GB 1720-1979 " paint film
Adhere to amylograph " standard, test the adhesive force of fluorocarbon layer, represent and fall off wherein 100/100 represents not demoulding, 90/100
10%.According to the standard of GB/T 31034-2014 " crystal silicon solar battery component insulating back panel ", solar energy backboard is tested
Package strength, wet and heat ageing resistant characteristic and QUV variation.According to non-dust cloth load wiping method, film surface visual condition is observed.
The test result of table 1 embodiment 1 to 8 and the fluorocarbon layer in comparative example 1 to 4
It can be seen that, the type of curing agent isocyanates has a major impact properties of product from table 1.When 1 He of comparative example
Using 4,4 '-diisocyanate (MDI) of diphenyl methane-and toluene di-isocyanate(TDI) (TDI) as curing agent in comparative example 2
When, because having benzene radicals in curing agent molecular formula, even if after forming fine and close molecule in cross-linking reaction, due to aromatic rings
Relative instability, influence whether durability of coating and solvent resistance.Because comparatively the phenyl ring of double bond is in humid
Aspect is not so good as to be fully hydrogenated the H6XDI of processing.When curing agent content addition is excessively high, because the molecule formed excessively causes
Close property, this will lead to coating and occurs to fall off with PET coating in hydrothermal aging test.When curing agent content is very little, because
Molecule cross-link degree is lower, and the weatherability of coating can significantly reduce.
Solar energy backboard provided by the invention has the characteristics that solvent resistant wiping, while can guarantee that adhesive force, heat-sealing are strong
Degree is complied with standard in hydrothermal aging test process.Wherein embodiment 1-3,5, the 8 fluorocarbon layer better performances provided, fluorocarbon layer do not take off
It falls, initial package strength at least 64N/cm, without obvious cosmetic variation after QUV tests 90kwh/ ㎡, experience is high damp and hot old
Change test package strength at least 40N/cm.Particularly, the fluorocarbon layer performance that embodiment 2,3,5 provides is best, and fluorocarbon layer does not take off
It falls, initial package strength at least 75N/cm, without obvious cosmetic variation after QUV tests 90kwh/ ㎡, experience is high damp and hot old
Change test package strength at least 50N/cm.
The above is only the preferred embodiments of the invention patent, are not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fluorocarbon layer coating fluid, which is characterized in that the coating fluid includes 40%~70% fluorocarbon resin, 20%~
50% titanium dioxide, 1%~5% flatting silica, 0.3%~0.8% polyacrylate, 5%~15% isocyanates, institute
The percentage stated is weight percentage.
2. fluorocarbon layer coating fluid according to claim 1, which is characterized in that it is sub- that the isocyanates is selected from hydrogenation of benzene two
Methyl diisocyanate (H6XDI).
3. fluorocarbon layer coating fluid according to claim 1, which is characterized in that the solid content of the fluorocarbon layer coating fluid is 40
~60%.
4. fluorocarbon layer coating fluid according to claim 1, which is characterized in that the fluorocarbon resin be selected from Kynoar,
One of polyvinyl fluoride, polytetrafluoroethylene (PTFE), polytrifluorochloroethylene, polyhexafluoropropylene or at least two combination.
5. fluorocarbon layer coating fluid according to claim 1, which is characterized in that the fluorocarbon resin, titanium dioxide, delustring
The total amount of powder, polyacrylate and isocyanates is 100%, and foregoing constituents are dissolved in formation fluorocarbon layer coating fluid in organic solvent.
6. fluorocarbon layer coating fluid according to claim 1, which is characterized in that the flatting silica is silicon dioxide granule.
7. a kind of solar energy backboard, which is characterized in that the backboard includes fluorocarbon layer, parylene's glycol ester substrate,
It is bonded glue-line and fluorine film layer.
8. solar energy backboard according to claim 7, which is characterized in that the fluorocarbon layer is by any in claim 1-6
It is formed after fluorocarbon layer coating fluid dry solidification described in.
9. solar energy backboard according to claim 7, which is characterized in that during the preparation process, the material of the fluorocarbon layer
First it is configured to fluorocarbon layer coating fluid, the coating fluid includes 40%~70% fluorocarbon resin, 20%~50% titanium dioxide,
1%~5% flatting silica, 0.3%~0.8% polyacrylate, 5%~15% isocyanates, the percentage are attached most importance to
Measure percentage.
10. solar energy backboard according to claim 7, which is characterized in that the fluorocarbon layer with a thickness of 10~20 μm；Institute
State substrate with a thickness of 250~300 μm；The fitting bondline thickness is 6~10 μm；The fluorine thicknesses of layers is 16~38 μm.
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