CN107180893A - A kind of preparation method of solar battery back film - Google Patents
A kind of preparation method of solar battery back film Download PDFInfo
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- CN107180893A CN107180893A CN201710265560.3A CN201710265560A CN107180893A CN 107180893 A CN107180893 A CN 107180893A CN 201710265560 A CN201710265560 A CN 201710265560A CN 107180893 A CN107180893 A CN 107180893A
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- solar battery
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 63
- 244000198134 Agave sisalana Species 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 238000007731 hot pressing Methods 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000498 ball milling Methods 0.000 claims abstract description 10
- 239000002274 desiccant Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 22
- 239000008236 heating water Substances 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 239000011812 mixed powder Substances 0.000 claims description 12
- 230000004048 modification Effects 0.000 claims description 11
- 238000012986 modification Methods 0.000 claims description 11
- 239000012065 filter cake Substances 0.000 claims description 10
- 238000003851 corona treatment Methods 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 239000003643 water by type Substances 0.000 claims description 6
- 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 5
- 235000011624 Agave sisalana Nutrition 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 241000255964 Pieridae Species 0.000 claims description 2
- 239000000701 coagulant Substances 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 2
- 238000010292 electrical insulation Methods 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 238000009777 vacuum freeze-drying Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229920002313 fluoropolymer Polymers 0.000 description 6
- 239000004811 fluoropolymer Substances 0.000 description 6
- 235000012245 magnesium oxide Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 125000005909 ethyl alcohol group Chemical group 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000126 substance 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- 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
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- 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)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of preparation method of solar battery back film, belong to solar cell package technology component field.The present invention is first with tetraethyl orthosilicate, absolute ethyl alcohol etc. for raw material, silicon dioxide gel is made, again with acetum, neopelex etc. for raw material, modified gel liquid is made, then modified gel liquid is mixed with silicon dioxide gel, through ultrasonic disperse, drying and ball milling, obtain desiccant gel powder, sisal fiber is handled again, modified sisal fiber must be dried by collecting, and after it is mixed with desiccant gel powder, it is plasma treated, carry out mixing mill with EVA resin, nano magnesia, most afterwards through hot pressing, cold pressing.Solar battery back film percent thermal shrinkage prepared by the present invention is less than 0.3%, and notacoria is unlikely to deform, and extends the service life of solar cell；And with superior electrical insulation capability.
Description
Technical field
The present invention relates to a kind of preparation method of solar battery back film, belong to solar cell package technology component neck
Domain.
Background technology
Solar cell is the device for directly luminous energy being changed into by photoelectric effect electric energy.It is a kind of following main hair
The novel power supply of exhibition, with permanent, spatter property and the big advantage of flexibility three, its wide market.Solar energy power generating
The important seat of world energy sources consumption can be occupied in the near future, not only to substitute part conventional energy resource, and will turn into generation
The main body of boundary's energy supply.Solar panel is typically a laminated construction：Mainly include photic zone, glue-line, cell piece, glue
The layers such as layer, notacoria, are sequentially laminated and form.Wherein, the main function of solar battery back film is the whole of raising solar panel
Body mechanical strength, can prevent steam from penetrating into sealant in addition, influence the service life of cell piece.So solar cell
Notacoria must have insulation（Electrical breakdown withstand）, ageing-resistant, resistance against weather influences and the characteristic such as corrosion-resistant.
In the prior art, it is to use fluoropolymer as weathering layer more, then it is coated with or is adhered on base material, with structure
Into solar battery back film.But had the disadvantage that using fluoropolymer as weathering layer：First, using fluoropolymer conduct
Weathering layer, processing difficulties, complex manufacturing；2nd, fluoropolymer price is higher, is unfavorable for reducing cost；3rd, fluoropolymer
Thing has good chemical inertness, and wetability is poor, makes the tack of weathering layer and base material poor, is easily sent out during use
Life comes off；5th, the pliability of fluoropolymer is poor, and shrinkage factor is high, causes notacoria in lamination process to deform, influences opto-electronic conversion
And outward appearance and cause the problems such as notacoria is cracking.Therefore, it is badly in need of finding a kind of processing simply, shrinkage factor is low, and pliability is preferable
Solar battery back film.
The content of the invention
The technical problems to be solved by the invention：It is high for traditional solar battery back film shrinkage factor, cause to be laminated
Notacoria is deformed in journey, and there is provided a kind of preparation method of solar battery back film for the problem of influenceing opto-electronic conversion and outward appearance.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）Count by weight, 25~30 parts of deionized waters, 5~8 parts of tetraethyl orthosilicates, 85~90 parts of anhydrous second are weighed respectively
Alcohol and 1~2 part of hydrochloric acid of mass fraction 5% stirring mixing, heated standing are cooled to room temperature, obtain silicon dioxide gel；
（2）Count by weight, 45~50 parts of acetums of mass fraction 15%, 10~15 parts of detergent alkylate sulphurs are weighed respectively
Sour sodium, 3~5 parts of MTMS stirring mixing, after heating water bath, standing is cooled to room temperature and is prepared into modified gel
Liquid；
（3）By volume 1:2, modified gel liquid is mixed with silicon dioxide gel stirring, after being handled through ultrasonic disperse, must be mixed
Coagulant liquid, milled 100 mesh sieve after mixed gel liquid is dried, obtains desiccant gel powder；
（4）Sisal fiber is taken, the chopped sisal fibers of 8~10mm are cut to obtain, in mass ratio 1:8, by chopped sisal fiber and matter
The stirring mixing of the sodium hydroxide solution of fraction 10% is measured, heating water bath simultaneously filters to obtain filter cake, scrubbed drying must dry modified sisal hemp
Fiber；
（5）In mass ratio 1:5, modified sisal fiber will be dried and mixed with desiccant gel powder and ground 120 mesh sieve, gel is obtained
Composite fibre, gel composite fibre is placed in plasma processing apparatus, plasma-treated that corona treatment is mixed
Condensating fiber, then corona treatment composite fibre ball milling is crossed into 200 mesh sieves, obtain plasma modification mixed-powder；
（6）Count by weight, weigh respectively 25~30 parts of EVA resins, 3~5 parts of plasma modification mixed-powders, 1~2 part
Nano magnesia, 1~2 part of silane resin acceptor kh-550,0.5~1.0 part of cumyl peroxide stirring mixing, are opened after drying
Practice 10~15min, obtain mill thing and hot pressing film, standing is cooled to room temperature, you can be prepared into a kind of solar battery back film.
Step（5）The condition of work of described plasma processing apparatus is that in a nitrogen atmosphere, setting discharge voltage is
30~35V, interelectrode distance is 5~8mm.
Step（6）Described mill condition of work be control mill temperature be 95~100 DEG C, roller spacing be 0.3~
0.5mm。
Step（6）Described hot pressing film pressure is 5~10MPa.
The beneficial effects of the invention are as follows：
（1）Sisal fiber crushing is prepared chopped strand by the present invention, at chopped strand and gel rubber material plasma grafting
After reason, it is added to as fibre modification filler in EVA resin, due in fibre modification filler, being chopped, sisal fiber formation is handed over
Knitmesh network, when solar battery back film is shunk, the sisal fiber fiber that is chopped is stable as the bridge for playing transmission load
Notacoria internal stress, enables the notacoria stress concentration of contraction to be passivated, the further contraction of notacoria suffers restraints, so that receiving
Stress under compression is eliminated or weakened.
（2）In solar energy back film prepared by the present invention, the cross-linked network of sisal fiber formation can be effectively improved EVA resin
Notacoria contraction intensity, solar energy back film reduces percent thermal shrinkage, is difficult notacoria under the bridge load effect of sisal hemp chopped strand
Deformation, protects the associated component of solar cell, extends the service life of solar cell.
Embodiment
Count by weight first, 25~30 parts of deionized waters, 5~8 parts of tetraethyl orthosilicates, 85~90 parts of nothings are weighed respectively
Water-ethanol and 1~2 part of hydrochloric acid of mass fraction 5% are placed in beaker, and after being uniformly mixed, beaker is placed in into water at 45~50 DEG C
Bath 1~2h of heating, is treated after the completion of heating water bath, standing is cooled to room temperature, obtains silicon dioxide gel, then counts by weight, point
Also known as measure 45~50 parts of acetums of mass fraction 15%, 10~15 parts of neopelexes, 3~5 parts of methyl trimethoxy epoxides
Silane is placed in beaker, at 45~50 DEG C after 2~3h of heating water bath, and standing is cooled to room temperature and is prepared into modified gel liquid；Press
Volume ratio 1:2, modified gel liquid and silicon dioxide gel stirring are mixed be placed under 200~300W ultrasonic disperse processing 15~
20min, obtains mixed gel liquid, will be placed in after mixed gel liquid vacuum freeze drying in ball grinder, the ball under 250~300r/min
1~2h is ground, 100 mesh sieves is crossed and obtains desiccant gel powder；Sisal fiber is chosen, fibre cutting machine is placed in after it is cleaned with clear water
In, it is cut to 8~10mm and is chopped sisal fiber, then in mass ratio 1:8, by chopped sisal fiber and the hydrogen-oxygen of mass fraction 10%
Change sodium solution stirring mixing and be placed in 3~5h of heating water bath at 45~50 DEG C, filter to obtain filter cake, filter cake 3 is washed with deionized
After~5 times, vacuum freeze drying must dry modified sisal fiber；Again in mass ratio 1:5, modified sisal fiber will be dried with doing
Dry gel powder mixing is placed in mortar, is crossed 120 mesh sieves after 1~2h of grinding, is obtained gel composite fibre, then mix gel
Fiber is placed in plasma processing apparatus, under nitrogen protection, setting discharge voltage be 30~35V, interelectrode distance be 5~
After 8mm, 60~90s of processing, corona treatment composite fibre is prepared into, is placed in ball grinder, under 250~300r/min
3~5h of ball milling, crosses 200 mesh sieves and obtains plasma modification mixed-powder；Then count by weight, 25~30 parts are weighed respectively
EVA resin, 3~5 parts of plasma modification mixed-powders, 1~2 part of nano magnesia, 1~2 part of silane resin acceptor kh-550,
0.5~1.0 part of cumyl peroxide is placed in beaker, and stirring mixing is placed in drying after 6~8h in 55~60 DEG C of baking ovens, obtains
Compound, compound is placed in mill, and it is 95~100 DEG C to control mill temperature, and roller spacing is 0.3~0.5mm, is waited out
Refine after 10~15min, the material after mill is placed in into hot pressing at 95~100 DEG C is film-made, and it is 5~10MPa to control hot pressing pressure, is treated
After 2~3min of hot pressing, then 2~3min of cold pressing under 5~10MPa, then stand and be cooled to room temperature, you can be prepared into a kind of sun
Can battery back film.
Example 1
Count by weight first, 30 parts of deionized waters, 8 parts of tetraethyl orthosilicates, 90 parts of absolute ethyl alcohols and 2 parts of quality are weighed respectively
The hydrochloric acid of fraction 5% is placed in beaker, after being uniformly mixed, and beaker is placed in into heating water bath 2h at 50 DEG C, treats that heating water bath is completed
Afterwards, stand and be cooled to room temperature, obtain silicon dioxide gel, then count by weight, 50 parts of acetic acid of mass fraction 15% are weighed respectively molten
Liquid, 15 parts of neopelexes, 5 parts of MTMSs are placed in beaker, quiet at 50 DEG C after heating water bath 3h
Put and be cooled to room temperature and be prepared into modified gel liquid；By volume 1:2, modified gel liquid is mixed simultaneously with silicon dioxide gel stirring
It is placed in ultrasonic disperse under 300W and handles 20min, obtains mixed gel liquid, ball grinder will be placed in after mixed gel liquid vacuum freeze drying
In, the ball milling 2h under 300r/min crosses 100 mesh sieves and obtains desiccant gel powder；Sisal fiber is chosen, it is cleaned with clear water rearmounted
In fibre cutting machine, it is cut to 10mm and is chopped sisal fiber, then in mass ratio 1:8, by chopped sisal fiber and quality point
Several 10% sodium hydroxide solution stirring mixing are placed in heating water bath 5h at 50 DEG C, filter to obtain filter cake, filter cake is washed with deionized
After 5 times, vacuum freeze drying must dry modified sisal fiber；Again in mass ratio 1:5, modified sisal fiber and drying will be dried
Gel powder mixing is placed in mortar, is crossed 120 mesh sieves after grinding 2h, gel composite fibre is obtained, then by gel composite fibre
It is placed in plasma processing apparatus, under nitrogen protection, setting discharge voltage is 35V, and interelectrode distance is 8mm, handles 90s
Afterwards, corona treatment composite fibre is prepared into, is placed in ball grinder, the ball milling 5h under 300r/min, crossing 200 mesh sieves must wait
The modifies mixed-powder of ion；Then count by weight, 30 parts of EVA resins, 5 parts of plasma modification mixed powders are weighed respectively
End, 2 parts of nano magnesias, 2 parts of silane resin acceptor kh-550s, 1.0 parts of cumyl peroxides are placed in beaker, and stirring mixing is simultaneously
It is placed in 60 DEG C of baking ovens and dries after 8h, obtain compound, compound is placed in mill, it is 100 DEG C, roller to control mill temperature
Spacing is 0.5mm, after after mill 15min, and the material after mill is placed in into hot pressing at 100 DEG C is film-made, and controls the hot pressing pressure to be
10MPa, 3min is cold-pressed after after hot pressing 3min, then under 10MPa, is then stood and is cooled to room temperature, you can is prepared into a kind of sun
Can battery back film.
Example 2
Count by weight first, 25 parts of deionized waters, 5 parts of tetraethyl orthosilicates, 85 parts of absolute ethyl alcohols and 1 part of quality are weighed respectively
The hydrochloric acid of fraction 5% is placed in beaker, after being uniformly mixed, and beaker is placed in into heating water bath 1h at 45 DEG C, treats that heating water bath is completed
Afterwards, stand and be cooled to room temperature, obtain silicon dioxide gel, then count by weight, 45 parts of acetic acid of mass fraction 15% are weighed respectively molten
Liquid, 10 parts of neopelexes, 3 parts of MTMSs are placed in beaker, quiet at 45 DEG C after heating water bath 2h
Put and be cooled to room temperature and be prepared into modified gel liquid；By volume 1:2, modified gel liquid is mixed simultaneously with silicon dioxide gel stirring
It is placed in ultrasonic disperse under 200W and handles 15min, obtains mixed gel liquid, ball grinder will be placed in after mixed gel liquid vacuum freeze drying
In, the ball milling 1h under 250r/min crosses 100 mesh sieves and obtains desiccant gel powder；Sisal fiber is chosen, it is cleaned with clear water rearmounted
In fibre cutting machine, it is cut to 8mm and is chopped sisal fiber, then in mass ratio 1:8, by chopped sisal fiber and mass fraction
The stirring mixing of 10% sodium hydroxide solution is placed in heating water bath 3h at 45 DEG C, filters to obtain filter cake, filter cake 3 is washed with deionized
After secondary, vacuum freeze drying must dry modified sisal fiber；Again in mass ratio 1:5, modified sisal fiber will be dried solidifying with drying
The mixing of rubber powder end is placed in mortar, is crossed 120 mesh sieves after grinding 1h, is obtained gel composite fibre, then put gel composite fibre
In plasma processing apparatus, under nitrogen protection, setting discharge voltage is 30V, and interelectrode distance is 5mm, handles 60s
Afterwards, corona treatment composite fibre is prepared into, is placed in ball grinder, the ball milling 3h under 250r/min, crossing 200 mesh sieves must wait
The modifies mixed-powder of ion；Then count by weight, 25 parts of EVA resins, 3 parts of plasma modification mixed powders are weighed respectively
End, 1 part of nano magnesia, 1 part of silane resin acceptor kh-550,0.5 part of cumyl peroxide are placed in beaker, and stirring mixing is simultaneously
It is placed in 55 DEG C of baking ovens and dries after 6h, obtain compound, compound is placed in mill, it is 95 DEG C, roller to control mill temperature
Spacing is 0.3mm, after after mill 10min, and the material after mill is placed in into hot pressing at 95 DEG C is film-made, and controls the hot pressing pressure to be
5MPa, 2min is cold-pressed after after hot pressing 2min, then under 5MPa, is then stood and is cooled to room temperature, you can is prepared into a kind of solar energy
Battery back film.
Example 3
Count by weight first, 27 parts of deionized waters, 6 parts of tetraethyl orthosilicates, 87 parts of absolute ethyl alcohols and 2 parts of quality are weighed respectively
The hydrochloric acid of fraction 5% is placed in beaker, after being uniformly mixed, and beaker is placed in into heating water bath 2h at 47 DEG C, treats that heating water bath is completed
Afterwards, stand and be cooled to room temperature, obtain silicon dioxide gel, then count by weight, 47 parts of acetic acid of mass fraction 15% are weighed respectively molten
Liquid, 12 parts of neopelexes, 4 parts of MTMSs are placed in beaker, quiet at 47 DEG C after heating water bath 2h
Put and be cooled to room temperature and be prepared into modified gel liquid；By volume 1:2, modified gel liquid is mixed simultaneously with silicon dioxide gel stirring
It is placed in ultrasonic disperse under 250W and handles 17min, obtains mixed gel liquid, ball grinder will be placed in after mixed gel liquid vacuum freeze drying
In, the ball milling 1h under 270r/min crosses 100 mesh sieves and obtains desiccant gel powder；Sisal fiber is chosen, it is cleaned with clear water rearmounted
In fibre cutting machine, it is cut to 9mm and is chopped sisal fiber, then in mass ratio 1:8, by chopped sisal fiber and mass fraction
The stirring mixing of 10% sodium hydroxide solution is placed in heating water bath 4h at 47 DEG C, filters to obtain filter cake, filter cake 4 is washed with deionized
After secondary, vacuum freeze drying must dry modified sisal fiber；Again in mass ratio 1:5, modified sisal fiber will be dried solidifying with drying
The mixing of rubber powder end is placed in mortar, is crossed 120 mesh sieves after grinding 1h, is obtained gel composite fibre, then put gel composite fibre
In plasma processing apparatus, under nitrogen protection, setting discharge voltage is 33V, and interelectrode distance is 7mm, handles 70s
Afterwards, corona treatment composite fibre is prepared into, is placed in ball grinder, the ball milling 4h under 270r/min, crossing 200 mesh sieves must wait
The modifies mixed-powder of ion；Then count by weight, 27 parts of EVA resins, 4 parts of plasma modification mixed powders are weighed respectively
End, 1 part of nano magnesia, 1 part of silane resin acceptor kh-550,0.7 part of cumyl peroxide are placed in beaker, and stirring mixing is simultaneously
It is placed in 57 DEG C of baking ovens and dries after 7h, obtain compound, compound is placed in mill, it is 98 DEG C, roller to control mill temperature
Spacing is 0.4mm, after after mill 13min, and the material after mill is placed in into hot pressing at 97 DEG C is film-made, and controls the hot pressing pressure to be
7MPa, 3min is cold-pressed after after hot pressing 3min, then under 7MPa, is then stood and is cooled to room temperature, you can is prepared into a kind of solar energy
Battery back film.
The solar battery back film related physical performance that detection example 1 to example 3 is prepared, detection data are as follows：
Claims (4)
1. a kind of preparation method of solar battery back film, it is characterised in that specifically preparation process is：
（1）Count by weight, 25~30 parts of deionized waters, 5~8 parts of tetraethyl orthosilicates, 85~90 parts of anhydrous second are weighed respectively
Alcohol and 1~2 part of hydrochloric acid of mass fraction 5% stirring mixing, heated standing are cooled to room temperature, obtain silicon dioxide gel；
（2）Count by weight, 45~50 parts of acetums of mass fraction 15%, 10~15 parts of detergent alkylate sulphurs are weighed respectively
Sour sodium, 3~5 parts of MTMS stirring mixing, after heating water bath, standing is cooled to room temperature and is prepared into modified gel
Liquid；
（3）By volume 1:2, modified gel liquid is mixed with silicon dioxide gel stirring, after being handled through ultrasonic disperse, must be mixed
Coagulant liquid, milled 100 mesh sieve after mixed gel liquid is dried, obtains desiccant gel powder；
（4）Sisal fiber is taken, the chopped sisal fibers of 8~10mm are cut to obtain, in mass ratio 1:8, by chopped sisal fiber and matter
The stirring mixing of the sodium hydroxide solution of fraction 10% is measured, heating water bath simultaneously filters to obtain filter cake, scrubbed drying must dry modified sisal hemp
Fiber；
（5）In mass ratio 1:5, modified sisal fiber will be dried and mixed with desiccant gel powder and ground 120 mesh sieve, gel is obtained
Composite fibre, gel composite fibre is placed in plasma processing apparatus, plasma-treated that corona treatment is mixed
Condensating fiber, then corona treatment composite fibre ball milling is crossed into 200 mesh sieves, obtain plasma modification mixed-powder；
（6）Count by weight, weigh respectively 25~30 parts of EVA resins, 3~5 parts of plasma modification mixed-powders, 1~2 part
Nano magnesia, 1~2 part of silane resin acceptor kh-550,0.5~1.0 part of cumyl peroxide stirring mixing, are opened after drying
Practice 10~15min, obtain mill thing and hot pressing film, standing is cooled to room temperature, you can be prepared into a kind of solar battery back film.
2. a kind of preparation method of solar battery back film according to claim 1, it is characterised in that：Step（5）It is described
The condition of work of plasma processing apparatus be that in a nitrogen atmosphere, setting discharge voltage is 30~35V, interelectrode distance
For 5~8mm.
3. a kind of preparation method of solar battery back film according to claim 1, it is characterised in that：Step（6）It is described
Mill condition of work be control mill temperature be 95~100 DEG C, roller spacing be 0.3~0.5mm.
4. a kind of preparation method of solar battery back film according to claim 1, it is characterised in that：Step（6）It is described
Hot pressing film pressure be 5~10MPa.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157589A (en) * | 2010-11-26 | 2011-08-17 | 诸暨市枫华塑胶科技有限公司 | High-efficiency solar cell back film and preparation method thereof |
| CN102376805A (en) * | 2011-10-18 | 2012-03-14 | 江苏科技大学 | Solar cell backplane and manufacturing method thereof |
| CN102738275A (en) * | 2011-04-12 | 2012-10-17 | 苏州尚善新材料科技有限公司 | Solar cell assembly backplane and preparation method thereof |
| CN103050563A (en) * | 2012-12-28 | 2013-04-17 | 苏州度辰新材料有限公司 | Solar-powered back plate and manufacturing method thereof |
| CN106206800A (en) * | 2016-07-29 | 2016-12-07 | 无锡信大气象传感网科技有限公司 | A kind of solar cell backboard and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157589A (en) * | 2010-11-26 | 2011-08-17 | 诸暨市枫华塑胶科技有限公司 | High-efficiency solar cell back film and preparation method thereof |
| CN102738275A (en) * | 2011-04-12 | 2012-10-17 | 苏州尚善新材料科技有限公司 | Solar cell assembly backplane and preparation method thereof |
| CN102376805A (en) * | 2011-10-18 | 2012-03-14 | 江苏科技大学 | Solar cell backplane and manufacturing method thereof |
| CN103050563A (en) * | 2012-12-28 | 2013-04-17 | 苏州度辰新材料有限公司 | Solar-powered back plate and manufacturing method thereof |
| CN106206800A (en) * | 2016-07-29 | 2016-12-07 | 无锡信大气象传感网科技有限公司 | A kind of solar cell backboard and preparation method thereof |
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