CN106024945A - High-durability solar panel back film - Google Patents
High-durability solar panel back film Download PDFInfo
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- CN106024945A CN106024945A CN201610421854.6A CN201610421854A CN106024945A CN 106024945 A CN106024945 A CN 106024945A CN 201610421854 A CN201610421854 A CN 201610421854A CN 106024945 A CN106024945 A CN 106024945A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 47
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 39
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims abstract description 26
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 25
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 19
- 239000001509 sodium citrate Substances 0.000 claims abstract description 16
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 16
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims abstract description 15
- 239000000787 lecithin Substances 0.000 claims abstract description 15
- 235000010445 lecithin Nutrition 0.000 claims abstract description 15
- 229940067606 lecithin Drugs 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 14
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 13
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 13
- 239000001110 calcium chloride Substances 0.000 claims abstract description 13
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 13
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 13
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920000747 poly(lactic acid) Polymers 0.000 claims abstract description 13
- 239000004626 polylactic acid Substances 0.000 claims abstract description 13
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 13
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 13
- 239000008117 stearic acid Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000000748 compression moulding Methods 0.000 claims abstract description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 42
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 36
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 229910000077 silane Inorganic materials 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 12
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 12
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 12
- 235000019394 potassium persulphate Nutrition 0.000 claims description 12
- 239000000376 reactant Substances 0.000 claims description 12
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 12
- -1 Kynoar Substances 0.000 claims description 10
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 235000010215 titanium dioxide Nutrition 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 229940058015 1,3-butylene glycol Drugs 0.000 claims description 3
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 claims description 3
- 235000019437 butane-1,3-diol Nutrition 0.000 claims description 3
- 229940100573 methylpropanediol Drugs 0.000 claims description 3
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 2
- 229940117969 neopentyl glycol Drugs 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 abstract description 7
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 abstract 1
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010409 thin film Substances 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
- H01L31/04—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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
The invention provides a high-durability solar panel back film and a preparation method thereof. The raw materials of the high-durability solar panel back film include titanium dioxide, sodium citrate, a silane coupling agent, lecithin, sodium carbonate, lauryl sodium sulfate, potassium peroxodisulfate, divinyl benzene, glycerol, stearic acid, polymethylmethacrylat, calcium chloride, polyvinylidene fluoride, polymethyl methacrylate, polyhydric alcohols and polylactic acid. The preparation method comprises the following steps: firstly modifying titanium dioxide, mixing with a compound system and fusing; and finally carrying out compression moulding forming to obtain a back film. The high-durability solar panel back film provided by the invention has excellent heat stability, mechanical property, weather fastness and cohesiveness and can be used as a novel solar panel back film to replace an original solar panel back film which takes polyvinyl fluoride as a substrate.
Description
Technical field
The invention belongs to technical field of solar batteries, be specifically related to the notacoria of the solar panel of a kind of high-durability.
Background technology
Solar cell industry is just developing with speed faster under current regenerative resource governs the severe situation of international community's economic development bottleneck day by day.Under the promotion of international photovoltaic market great potential, the solaode manufacturing industry of various countries falls over each other to put into huge fund, and expanding production, to strive one seat.China's solar cell industry other assemblies in addition to solar battery back film all realize production domesticization at present; solar battery back film (solar cell backboard film) plays a part to protect the cell piece in photovoltaic module, has reliable insulating properties, water preventing ability, resistance to ag(e)ing.
Solar cell notacoria is broadly divided into fluorine-containing notacoria and the most fluorine-containing big class of notacoria two.The most fluorine-containing notacoria divides again double-side fluorine (such as TPT) and one side fluorine-containing (such as TPE) two kinds;The most fluorine-containing notacoria is then many to be composited gluing for multilayer PET by adhesive.At present, the use of commercial crystal silicon solar battery assembly requires to be 25 years, and notacoria is as direct and the photovoltaic encapsulation material of external environment bump contact, it should possess the performances such as the resistance to long-term ageing (damp and hot, xeothermic, ultraviolet) of brilliance, resistance to electric insulation, vapor water barriers.Therefore, notacoria to meet the solar module environmental test of 25 years at aspects such as insulation ageing-resistant, resistance to, resistance to aqueous vapors.
Solar battery back film requires at a relatively high as the important encapsulating material of a class, its technology, and relevant raw materials is restricted by the patented technology of abroad fluorination work giant for a long time in addition, and degree domestic is the most extremely low even to this day.Solar battery back film is polyvinyl fluoride composite membrane, has three-decker-polyvinyl fluoride/polyethylene terephthalate/polyvinyl fluoride (PVF/PET/PVF), there is cohesive force poor, and easy peeling off phenomenon is substantially reduced the serviceability of product.Therefore, develop a class and do not use adhesive, there is higher integrated degree and the low cost of excellent weather resistance, high-quality backboard membrane product are Main way and the trend of current technology development.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide notacoria of solar panel of a kind of high-durability and preparation method thereof, this notacoria has good heat stability, mechanical property, weatherability and caking property.
The notacoria of the solar panel of a kind of high-durability, raw material includes in parts by weight: titanium dioxide 10～20 parts, sodium citrate 3～7 parts, silane coupler 2～8 parts, lecithin 2～5 parts, sodium carbonate 3～7 parts, sodium lauryl sulphate 2～8 parts, potassium peroxydisulfate 2～6 parts, divinylbenzene 3～9 parts, glycerol 4～10 parts, stearic acid 2～7 parts, methyl methacrylate 3～9 parts, calcium chloride 2～6 parts, Kynoar 10～20 parts, polymethyl methacrylate 10～20 parts, polyhydric alcohol 4～11 parts, polylactic acid 3～9 parts.
Further, the particle diameter of titanium dioxide is in 200～400 μm.
Further, the one during described silane coupler is KH550, KH560 or KH570.
Further, the one during described polyhydric alcohol is diethylene glycol, neopentyl glycol, 1,3 butylene glycol or methyl propanediol.
The preparation method of the notacoria of the solar panel of described high-durability, comprises the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 700～800 DEG C of insulations 1～4h, lets cool, and washs solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 110～130 DEG C of reactions 12～24h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, it is warming up to 70～90 DEG C of insulation reaction 2～5h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, melt blending 15～25min under the conditions of 170～210 DEG C, 50～80rpm, blend, through compression molding, obtains notacoria.
Further, in step 1, the concentration of dilute hydrochloric acid is 3～5v/v%.
Further, in step 2, ultrasonic disperse condition is 20～50KHz, 20～30min.
Further, in step 2, baking temperature is 80～100 DEG C.
The solar battery back film of the present invention has good heat stability, mechanical property, weatherability and caking property, can serve as new type solar energy back membrane material.
Detailed description of the invention
Embodiment 1
The notacoria of the solar panel of a kind of high-durability, raw material includes in parts by weight: titanium dioxide 10 parts, sodium citrate 3 parts, silane coupler 2 parts, 2 parts of lecithin, sodium carbonate 3 parts, sodium lauryl sulphate 2 parts, potassium peroxydisulfate 2 parts, divinylbenzene 3 parts, glycerol 4 parts, stearic acid 2 parts, methyl methacrylate 3 parts, 2 parts of calcium chloride, Kynoar 10 parts, polymethyl methacrylate 10 parts, polyhydric alcohol 4 parts, polylactic acid 3 parts.
Wherein, the particle diameter of titanium dioxide is in 200 μm, and silane coupler is KH550, and polyhydric alcohol is diethylene glycol.
The preparation method of the notacoria of the solar panel of described high-durability, comprises the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 700 DEG C of insulation 4h, lets cool, wash solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 110 DEG C of reaction 24h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, being warming up to 70 DEG C of insulation reaction 5h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, at 170 DEG C, melt blending 25min under the conditions of 50rpm, blend, through compression molding, obtains notacoria.
Wherein, in step 1, the concentration of dilute hydrochloric acid is 3v/v%；In step 2, ultrasonic disperse condition is 20KHz, 30min, and baking temperature is 80 DEG C.
Embodiment 2
The notacoria of the solar panel of a kind of high-durability, raw material includes in parts by weight: titanium dioxide 14 parts, sodium citrate 5 parts, silane coupler 7 parts, 3 parts of lecithin, sodium carbonate 6 parts, sodium lauryl sulphate 6 parts, potassium peroxydisulfate 5 parts, divinylbenzene 8 parts, glycerol 7 parts, stearic acid 4 parts, methyl methacrylate 6 parts, 3 parts of calcium chloride, Kynoar 15 parts, polymethyl methacrylate 13 parts, polyhydric alcohol 6 parts, polylactic acid 8 parts.
Wherein, the particle diameter of titanium dioxide is in 300 μm, and silane coupler is KH560, and polyhydric alcohol is 1,3 butylene glycol.
The preparation method of the notacoria of the solar panel of described high-durability, comprises the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 750 DEG C of insulation 3h, lets cool, wash solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 120 DEG C of reaction 15h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, being warming up to 80 DEG C of insulation reaction 4h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, at 190 DEG C, melt blending 20min under the conditions of 60rpm, blend, through compression molding, obtains notacoria.
Wherein, in step 1, the concentration of dilute hydrochloric acid is 4v/v%；In step 2, ultrasonic disperse condition is 40KHz, 25min, and baking temperature is 90 DEG C.
Embodiment 3
The notacoria of the solar panel of a kind of high-durability, raw material includes in parts by weight: titanium dioxide 18 parts, sodium citrate 6 parts, silane coupler 7 parts, 3 parts of lecithin, sodium carbonate 5 parts, sodium lauryl sulphate 6 parts, potassium peroxydisulfate 5 parts, divinylbenzene 8 parts, glycerol 7 parts, stearic acid 3 parts, methyl methacrylate 4 parts, 5 parts of calcium chloride, Kynoar 12 parts, polymethyl methacrylate 15 parts, polyhydric alcohol 8 parts, polylactic acid 7 parts.
Wherein, the particle diameter of titanium dioxide is in 200 μm, and silane coupler is KH570, and polyhydric alcohol is methyl propanediol.
The preparation method of the notacoria of the solar panel of described high-durability, comprises the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 700 DEG C of insulation 4h, lets cool, wash solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 110 DEG C of reaction 24h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, being warming up to 70 DEG C of insulation reaction 5h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, at 170 DEG C, melt blending 25min under the conditions of 50rpm, blend, through compression molding, obtains notacoria.
Wherein, in step 1, the concentration of dilute hydrochloric acid is 3v/v%；In step 2, ultrasonic disperse condition is 20KHz, 30min, and baking temperature is 80 DEG C.
Embodiment 4
The notacoria of the solar panel of a kind of high-durability, raw material includes in parts by weight: titanium dioxide 20 parts, sodium citrate 7 parts, silane coupler 8 parts, 5 parts of lecithin, sodium carbonate 7 parts, sodium lauryl sulphate 8 parts, potassium peroxydisulfate 6 parts, divinylbenzene 9 parts, glycerol 10 parts, stearic acid 7 parts, methyl methacrylate 9 parts, 6 parts of calcium chloride, Kynoar 20 parts, polymethyl methacrylate 20 parts, polyhydric alcohol 11 parts, polylactic acid 9 parts.
Wherein, the particle diameter of titanium dioxide is in 200 μm, and silane coupler is KH550, and polyhydric alcohol is diethylene glycol.
The preparation method of the notacoria of the solar panel of described high-durability, comprises the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 800 DEG C of insulation 1h, lets cool, wash solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 130 DEG C of reaction 12h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, being warming up to 90 DEG C of insulation reaction 2h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, at 210 DEG C, melt blending 15min under the conditions of 80rpm, blend, through compression molding, obtains notacoria.
Wherein, in step 1, the concentration of dilute hydrochloric acid is 5v/v%；In step 2, ultrasonic disperse condition is 50KHz, 20min, and baking temperature is 100 DEG C.
Embodiment 5
The present embodiment is with the difference of embodiment 3: do not include sodium citrate in notacoria raw material.
Embodiment 6
The present embodiment is with the difference of embodiment 5: do not include lecithin in notacoria raw material.
Embodiment 1 to 6 gained notacoria is carried out performance test, and result is as follows:
As seen from the above table, the solar battery back film of the present invention has good heat stability, mechanical property, weatherability and caking property, can serve as new type solar energy back membrane material, to substitute the original solar battery back film with polyvinyl fluoride as matrix.Knowable to embodiment 5, the membership that adds of sodium citrate affects the performance of back membrane material, and this is possibly due to sodium citrate and forms thin film at titanium dioxide surface, thus avoids the reunion of titanium dioxide；In embodiment 6, lecithin can promote titanium dioxide dispersibility in compound system, and improves the adhesive property of notacoria.
Claims (8)
1. the notacoria of the solar panel of a high-durability, it is characterised in that: raw material includes in parts by weight: titanium dioxide 10～20 parts, sodium citrate 3～7 parts, silane coupler 2～8 parts, lecithin 2～5 parts, sodium carbonate 3～7 parts, sodium lauryl sulphate 2～8 parts, potassium peroxydisulfate 2～6 parts, divinylbenzene 3～9 parts, glycerol 4～10 parts, stearic acid 2～7 parts, methyl methacrylate 3～9 parts, calcium chloride 2～6 parts, Kynoar 10～20 parts, polymethyl methacrylate 10～20 parts, polyhydric alcohol 4～11 parts, polylactic acid 3～9 parts.
The notacoria of the solar panel of high-durability the most according to claim 1, it is characterised in that: the particle diameter of titanium dioxide is in 200～400 μm.
The notacoria of the solar panel of high-durability the most according to claim 1, it is characterised in that: described silane coupler is the one in KH550, KH560 or KH570.
The notacoria of the solar panel of high-durability the most according to claim 1, it is characterised in that: described polyhydric alcohol is the one in diethylene glycol, neopentyl glycol, 1,3 butylene glycol or methyl propanediol.
5. the preparation method of the notacoria of the solar panel of the high-durability described in claim 1, it is characterised in that: comprise the following steps:
Step 1, takes titanium dioxide, sodium citrate, and mixing is placed on quartz boat, is warming up to 700～800 DEG C of insulations 1～4h, lets cool, and washs solids dilute hydrochloric acid to constant weight, obtains etching titanium dioxide；
Step 2, adds in toluene by etching titanium dioxide, silane coupler, lecithin, sodium carbonate, ultrasonic disperse, 110～130 DEG C of reactions 12～24h, and reactant ethanol centrifuge washing is dried, obtains modifying titanium dioxide；
Step 3, by modifying titanium dioxide, sodium lauryl sulphate, potassium peroxydisulfate, divinylbenzene, glycerol, stearic acid mixing, ball milling, add methyl methacrylate, calcium chloride under agitation, it is warming up to 70～90 DEG C of insulation reaction 2～5h, reactant toluene washs to constant weight, obtains compound particle；
Step 4, by compound particle, Kynoar, polymethyl methacrylate, polyhydric alcohol, polylactic acid mixing, melt blending 15～25min under the conditions of 170～210 DEG C, 50～80rpm, blend, through compression molding, obtains notacoria.
The preparation method of the notacoria of the solar panel of high-durability the most according to claim 5, it is characterised in that: in step 1, the concentration of dilute hydrochloric acid is 3～5v/v%.
The preparation method of the notacoria of the solar panel of high-durability the most according to claim 5, it is characterised in that: in step 2, ultrasonic disperse condition is 20～50KHz, 20～30min.
The preparation method of the notacoria of the solar panel of high-durability the most according to claim 5, it is characterised in that: in step 2, baking temperature is 80～100 DEG C.
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