CN115044346B - Sealing material, preparation method thereof and solar cell module - Google Patents
Sealing material, preparation method thereof and solar cell module Download PDFInfo
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- CN115044346B CN115044346B CN202210774563.0A CN202210774563A CN115044346B CN 115044346 B CN115044346 B CN 115044346B CN 202210774563 A CN202210774563 A CN 202210774563A CN 115044346 B CN115044346 B CN 115044346B
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- sealing material
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- silane
- sealing
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- 239000003566 sealing material Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920000098 polyolefin Polymers 0.000 claims abstract description 22
- 239000007822 coupling agent Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims description 39
- 229910000077 silane Inorganic materials 0.000 claims description 34
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 19
- -1 sodium carboxylate Chemical class 0.000 claims description 18
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 17
- 229920002554 vinyl polymer Polymers 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 15
- 239000002250 absorbent Substances 0.000 claims description 14
- 239000006229 carbon black Substances 0.000 claims description 14
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 239000012763 reinforcing filler Substances 0.000 claims description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 11
- 238000004513 sizing Methods 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000003431 cross linking reagent Substances 0.000 claims description 9
- 239000004014 plasticizer Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 claims description 7
- 238000007872 degassing Methods 0.000 claims description 7
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 7
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 7
- 239000005062 Polybutadiene Substances 0.000 claims description 6
- 229920002367 Polyisobutene Polymers 0.000 claims description 6
- 238000005984 hydrogenation reaction Methods 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 229920002857 polybutadiene Polymers 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 150000003505 terpenes Chemical class 0.000 claims description 5
- 235000007586 terpenes Nutrition 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 4
- ZKALVNREMFLWAN-VOTSOKGWSA-N (ne)-n-(4-methylpentan-2-ylidene)hydroxylamine Chemical compound CC(C)C\C(C)=N\O ZKALVNREMFLWAN-VOTSOKGWSA-N 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- BVFSYZFXJYAPQJ-UHFFFAOYSA-N butyl(oxo)tin Chemical compound CCCC[Sn]=O BVFSYZFXJYAPQJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 125000005375 organosiloxane group Chemical group 0.000 claims description 3
- 150000002923 oximes Chemical class 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims 1
- 239000000347 magnesium hydroxide Substances 0.000 claims 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 abstract description 14
- 239000011521 glass Substances 0.000 abstract description 12
- 238000004806 packaging method and process Methods 0.000 abstract description 12
- 238000002834 transmittance Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000032798 delamination Effects 0.000 abstract description 5
- 239000000565 sealant Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 13
- 235000021355 Stearic acid Nutrition 0.000 description 11
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 11
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 11
- 239000008117 stearic acid Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 9
- 239000000306 component Substances 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 6
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000009849 vacuum degassing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 241000872198 Serjania polyphylla Species 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 125000004423 acyloxy group Chemical group 0.000 description 2
- 125000003302 alkenyloxy group Chemical group 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 125000002344 aminooxy group Chemical group [H]N([H])O[*] 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- VDRSDNINOSAWIV-UHFFFAOYSA-N [F].[Si] Chemical compound [F].[Si] VDRSDNINOSAWIV-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- 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)
- Photovoltaic Devices (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention belongs to the technical field of sealing materials, and particularly relates to a sealing material, a preparation method thereof and a solar cell module. According to the sealing material provided by the invention, through the cooperation of the components, the problems that the water vapor transmittance is large and the sealing material cannot be adhered to an aluminum profile frame can be effectively solved, and the sealing performance and the mechanical performance can be simultaneously considered. Particularly, by adding the modified olefin polymer and the water-absorbing resin with specific structures, the delamination of the edge sealant caused by the corrosion of the battery component by wet hot water vapor can be effectively prevented, the problem that the edge water vapor invades and corrodes the battery piece is solved, and the requirement of edge sealing and packaging is well met; meanwhile, the coupling agent is added, so that the purpose of bonding the aluminum profile frame and glass can be well achieved, the mechanical load requirement of the photovoltaic module is met, and the module laminated piece and the frame are effectively prevented from slipping.
Description
Technical Field
The invention belongs to the technical field of sealing materials, and particularly relates to a sealing material, a preparation method thereof and a solar cell module.
Background
The forms of clean energy that have been developed and utilized at present include solar energy, wind energy, biological energy, water energy, geothermal energy, hydrogen energy, and the like. Among them, solar energy and wind energy are favored by many energy high-tech enterprises because of the minimum harm to the environment in the development process, and are rapidly developing.
Photovoltaic technology is one of the main technical routes of solar energy development, and the most important component of photovoltaic power generation is a solar cell, which is a device for directly converting light energy into electric energy through a photoelectric effect or a photochemical effect. The core component of the solar cell is a silicon wafer, and in order to ensure the photoelectric efficiency and service life of the silicon wafer, the silicon wafer is industrially sealed and solidified to form a photovoltaic module, and an aluminum frame, a bus line, a junction box and the like of the photovoltaic module are bonded and sealed by adopting a special sealing adhesive, so that water, oxygen and the like in the air are prevented from entering.
At present, main packaging modes of a mainstream photovoltaic module comprise single-glass packaging and double-glass packaging, and single-component silicon rubber is used as an edge sealing material at the edge of the module no matter the single-glass packaging or the double-glass packaging is carried out, but the water vapor transmittance of the single-component silicon rubber is larger (40-50 g/m 2 * d) The water vapor barrier performance is poor, and the application requirements of the photovoltaic module in the open air for 25-30 years are difficult to meet.
With the gradual application of high-efficiency battery pieces such as heterojunction batteries, perovskite batteries and the like, higher requirements on tightness are provided. Because of the special coating material of the high-efficiency battery piece, the high-efficiency battery piece is more sensitive to water vapor, and the existing single-component silicone rubber can not be packaged far. At present, butyl rubber is applied to battery piece packaging by virtue of excellent water vapor barrier performance, but the butyl rubber and an aluminum profile frame are poor in adhesion and can only be coated on the edge of glass, so that the sealing performance and the mechanical performance are difficult to be simultaneously considered, the process is complicated, and the manufacturing cost is greatly increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex process, increased cost and the like caused by the difficulty in simultaneously considering the sealing performance and the mechanical performance due to the fact that the single-component silicon rubber in the prior art is large in water vapor transmittance and poor in adhesion between the butyl rubber and the aluminum profile frame, so that the sealing material, the preparation method thereof and the solar cell module are provided.
Therefore, the invention provides the following technical scheme:
the invention provides a sealing material which comprises the following raw materials in parts by weight:
100 parts of an organosiloxane polymer; 60-120 parts of reinforcing filler; 20-45 parts of water-absorbent resin; 10-15 parts of modified olefin polymer; 0.5-5 parts of coupling agent; 5-20 parts of cross-linking agent; 10-20 parts of plasticizer; 0.1-5 parts of catalyst; 30-160 parts of flame retardant; 0.1-3 parts of tackifier;
the modified olefin polymer is polyolefin with a terminal group or a side chain group containing the following structure:
-SiR n X 3-n ，
wherein R is C m H 2m+1 X is at least one of alkoxy, acyloxy, amino, amido, ketoxime, aminoxy and alkenyloxy functional groups; n=0, 1 or 2, m=an integer from 1 to 20.
Optionally, the modified olefin polymer is formed by mixing one or more of silane modified polybutadiene, silane modified polyisobutene and siloxy amorphous-alpha-polyolefin according to any proportion.
Optionally, the water-absorbent resin is formed by mixing one or more of polyacrylate, modified polyvinyl alcohol and polyacrylamide according to any proportion;
optionally, the modified polyvinyl alcohol is a compound which is modified and grafted with hydrophilic groups such as hydroxyl, carboxyl, sodium carboxylate and the like at certain activation points on a main chain of a linear macromolecule; the modified polyvinyl alcohol contains hydrophilic groups such as hydroxyl, carboxyl, sodium carboxylate and the like, so that the water absorption effect of the modified polyvinyl alcohol is improved.
Optionally, the sealing material satisfies at least one of the following (1) to (9):
(1) The organic siloxane polymer is hydroxyl-terminated polydimethylsiloxane;
(2) The reinforcing filler is formed by mixing one or more of active calcium carbonate, carbon black, white carbon black and talcum powder according to any proportion;
(3) The mesh number of the reinforcing filler is 100-300 meshes;
(4) The coupling agent is formed by mixing one or more of aminosilane, epoxy silane, vinyl silane and acyloxy silane according to any proportion;
(5) The cross-linking agent is formed by mixing one or more of vinyl tributyl ketoxime silane, vinyl triacetonic oxime silane and vinyl tri (methyl isobutyl ketoxime) silane according to any proportion;
(6) The plasticizer is methyl silicone oil;
(7) The catalyst is formed by mixing one or more of dioctyltin dilaurate, dibutyl tin dilaurate, stannous octoate and monobutyl tin oxide according to any proportion;
(8) The flame retardant is aluminum hydroxide; alternatively, the flame retardant may be stearic acid-treated aluminum hydroxide; the modification treatment method is not particularly limited and may be a treatment method known in the art.
(9) The tackifier is one or more of rosin resin, terpene resin, phenolic resin, carbon five hydrogenation resin and carbon nine hydrogenation resin, which are mixed according to any proportion.
The invention also provides a preparation method of the sealing material, which comprises the following steps:
s1, mixing an organic siloxane polymer, a water-absorbent resin, a modified olefin polymer, a reinforcing filler and a flame retardant under a vacuum condition to obtain a main sizing material;
s2, adding a cross-linking agent, a coupling agent and a plasticizer, mixing under vacuum, and adding a catalyst and a tackifier for reaction to obtain the sealing material.
Optionally, the step S2 further comprises a degassing step after adding the catalyst and the tackifier for reaction, so that bubbles in the product and part of low-molecular substances generated in the reaction can be removed.
Optionally, the mixing temperature in the step S1 is 130-150 ℃, the vacuum degree is 0.05-0.1MPa, and the mixing time is 2-3h.
Optionally, the mixing temperature in the step S2 is 20-30 ℃, the vacuum degree is 0.05-0.1MPa, and the mixing time is 20-30min;
and/or the reaction temperature in the step S2 is 20-30 ℃, the vacuum degree is 0.05-0.1MPa, and the reaction time is 30-35min.
Optionally, the vacuum degree of the degassing step is 0.05-0.1MPa, and the time is 15-20min.
The invention also provides a solar cell module, which comprises cell pieces and a plurality of layers of sealing structures arranged between the cell pieces, wherein at least two adjacent layers of sealing structures are sealed by adopting the sealing material or the sealing material prepared by the preparation method.
Typically, but not by way of limitation, the solar cell assembly is a high efficiency cell such as a heterojunction cell or perovskite cell.
The technical scheme of the invention has the following advantages:
the sealing material provided by the invention can effectively solve the problem that the sealing material cannot be adhered to an aluminum profile frame due to the fact that the water vapor transmittance is large through the cooperation of the components. Particularly, the modified olefin polymer with a specific structure and the water-absorbent resin are added, so that delamination caused by wet and hot water vapor erosion of the sealing material can be effectively prevented, and the sealing and packaging requirements can be well met; meanwhile, the coupling agent is added, so that the purpose of bonding the aluminum profile frame and glass can be well achieved, the mechanical load requirement of the photovoltaic module is met, and the module laminated piece and the frame are effectively prevented from slipping.
The sealing material provided by the invention can further improve the sealing performance and the bonding performance and reduce the water vapor permeability by limiting the water-absorbent resin and other raw materials.
According to the preparation method of the sealing material, the main sizing material is obtained under the vacuum condition, and then the catalyst and the tackifier are added for reaction, so that the sealing material is obtained. By limiting specific steps, the stability of the whole formula system is ensured, and the performance requirements of the obtained sealing material in all aspects are effectively considered.
According to the preparation method of the sealing material, the catalyst and the tackifier are added in the step S2 for reaction, and then the degassing step is further included, so that bubbles in the product and part of low-molecular substances generated in the reaction can be removed, the sealing performance is further improved, and the water vapor transmittance is reduced.
The solar cell module provided by the invention can effectively prevent the delamination of the edge sealant caused by the corrosion of the cell module by wet hot water vapor, solves the problem of the corrosion of the cell caused by the invasion of the edge water vapor, and well meets the requirements of edge sealing and packaging; meanwhile, the coupling agent is added, so that the purpose of bonding the aluminum profile frame and glass can be well achieved, the mechanical load requirement of the photovoltaic module is met, and the module laminated piece and the frame are effectively prevented from slipping.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for preparing a sealing material according to the present invention.
Detailed Description
The following examples are provided for a better understanding of the present invention and are not limited to the preferred embodiments described herein, but are not intended to limit the scope of the invention, any product which is the same or similar to the present invention, whether in light of the present teachings or in combination with other prior art features, falls within the scope of the present invention.
The specific experimental procedures or conditions are not noted in the examples and may be followed by the operations or conditions of conventional experimental procedures described in the literature in this field. The reagents or apparatus used were conventional reagent products commercially available without the manufacturer's knowledge.
The invention provides a sealing material and a corresponding preparation method of the sealing material, wherein the sealing material is stable in system and can effectively meet the sealing performance and mechanical requirements; the preparation method of the corresponding sealing material can ensure the sealing performance of the material and reduce the water vapor permeability of the packaging structure.
The sealing materials and the corresponding methods for preparing the sealing materials will be described in general and in detail by examples 1 to 6 and comparative examples 1 to 3, and finally test data are provided.
The sealing material comprises the following raw materials in parts by weight:
100 parts of an organosiloxane polymer; 60-120 parts of reinforcing filler; 20-45 parts of water-absorbent resin; 10-15 parts of modified olefin polymer; 0.5-5 parts of coupling agent; 5-20 parts of cross-linking agent; 10-20 parts of plasticizer; 0.1-5 parts of catalyst; 30-160 parts of flame retardant; 0.1-3 parts of tackifier;
the modified olefin polymer is polyolefin with a terminal group or a side chain group containing the following structure: -SiR n X 3-n ，
Wherein R is C m H 2m+1 X is at least one of alkoxy, acyloxy, amino, amido, ketoxime, aminoxy and alkenyloxy functional groups; n=0, 1 or 2, m=an integer from 1 to 20.
The sealing material provided by the invention can effectively solve the problem that the sealing material cannot be adhered to an aluminum profile frame due to the fact that the water vapor transmittance is large through the cooperation of the components. Particularly, the modified olefin polymer with a specific structure and the water-absorbent resin are added, so that delamination caused by wet and hot water vapor erosion of the sealing material can be effectively prevented, and the sealing and packaging requirements can be well met; the coupling agent is added simultaneously to achieve the purpose of bonding the aluminum profile frame and glass, because the coupling agent contains both a group capable of being hydrolyzed and a group capable of having reactivity or compatibility with organic matters, one side of the coupling agent capable of being hydrolyzed can react with surface molecules of inorganic materials (such as aluminum profiles), and therefore, a bridge can be erected between interfaces of inorganic materials and organic materials by using the coupling agent, the materials with different properties are connected together, the bonding strength is improved, the mechanical load requirement of the photovoltaic module is met, and the module lamination and frame slipping are effectively prevented.
Optionally, the modified olefin polymer is formed by mixing one or more of silane modified polybutadiene, silane modified polyisobutene and siloxy amorphous-alpha-polyolefin according to any proportion.
Optionally, the water-absorbent resin is formed by mixing one or more of polyacrylate, modified polyvinyl alcohol and polyacrylamide according to any proportion;
the sealing material provided by the invention can further improve the sealing performance and the bonding performance and reduce the water vapor permeability by limiting the water-absorbent resin and other raw materials.
Optionally, the modified polyvinyl alcohol is a compound which is modified and grafted with hydrophilic groups such as hydroxyl, carboxyl, sodium carboxylate and the like at certain activation points on a main chain of a linear macromolecule; the modified polyvinyl alcohol contains hydrophilic groups such as hydroxyl, carboxyl, sodium carboxylate and the like, so that the water absorption effect of the modified polyvinyl alcohol is improved.
Optionally, the sealing material satisfies at least one of the following (1) to (9):
(1) The organic siloxane polymer is hydroxyl-terminated polydimethylsiloxane;
(2) The reinforcing filler is formed by mixing one or more of active calcium carbonate, carbon black, white carbon black and talcum powder according to any proportion;
(3) The mesh number of the reinforcing filler is 100-300 meshes;
(4) The coupling agent is formed by mixing one or more of aminosilane, epoxy silane, vinyl silane and acyloxy silane according to any proportion;
(5) The cross-linking agent is formed by mixing one or more of vinyl tributyl ketoxime silane, vinyl triacetonic oxime silane and vinyl tri (methyl isobutyl ketoxime) silane according to any proportion;
(6) The plasticizer is methyl silicone oil;
(7) The catalyst is formed by mixing one or more of dioctyltin dilaurate, dibutyl tin dilaurate, stannous octoate and monobutyl tin oxide according to any proportion;
(8) The flame retardant is aluminum hydroxide; alternatively, the flame retardant may be stearic acid-treated aluminum hydroxide; the modification treatment method is not particularly limited and may be a treatment method known in the art.
(9) The tackifier is one or more of rosin resin, terpene resin, phenolic resin, carbon five hydrogenation resin and carbon nine hydrogenation resin, which are mixed according to any proportion.
The invention also provides a preparation method of the sealing material, as shown in fig. 1, comprising the following steps:
s1, mixing an organic siloxane polymer, a water-absorbent resin, a modified olefin polymer, a reinforcing filler and a flame retardant under a vacuum condition to obtain a main sizing material;
s2, adding a cross-linking agent, a coupling agent and a plasticizer, mixing under vacuum, and adding a catalyst and a tackifier for reaction to obtain the sealing material.
According to the preparation method of the sealing material, the main sizing material is obtained under the vacuum condition, and then the catalyst and the tackifier are added for reaction, so that the sealing material is obtained. By limiting specific steps, the stability of the whole formula system is ensured, and the performance requirements of the obtained sealing material in all aspects are effectively considered.
Optionally, the step S2 further comprises a degassing step after adding the catalyst and the tackifier for reaction, so that bubbles in the product and part of low-molecular substances generated in the reaction can be removed, the sealing performance is further improved, and the water vapor transmittance is reduced.
Optionally, the mixing temperature in the step S1 is 130-150 ℃, the vacuum degree is 0.05-0.1MPa, and the mixing time is 2-3h.
Optionally, the mixing temperature in the step S2 is 20-30 ℃, the vacuum degree is 0.05-0.1MPa, and the mixing time is 20-30min;
and/or the reaction temperature in the step S2 is 20-30 ℃, the vacuum degree is 0.05-0.1MPa, and the reaction time is 30-35min.
Optionally, the vacuum degree of the degassing step is 0.05-0.1MPa, and the time is 15-20min.
In the following examples and comparative examples, 1 part=1 kg, and the sources of the respective raw materials in the examples and comparative examples of the present invention are the same, and the sources are noted only at the first occurrence.
Example 1
A sealing material is prepared by the following steps:
100 parts of hydroxyl-terminated polydimethylsiloxane with the viscosity of 10000 mPa.s (Shenzhen Ji Peng silicon fluorine materials Co., ltd., 107), 45 parts of dry stearic acid-treated active calcium carbonate with the particle size range of 100-300 meshes (nano technology Co., ltd.), 15 parts of carbon black, 20 parts of sodium polyacrylate (Sumitomo Co., SA 60S), 15 parts of silane-modified polybutadiene (POLYVEST-HT) and 160 parts of stearic acid-treated aluminum hydroxide (Jinan Jin Ying Tay chemical Co., ltd.) are stirred in a stirrer for 3 hours under the vacuum sealing condition at the temperature of 145 ℃ and the vacuum degree of 0.08MPa, and are uniformly mixed to obtain a main sizing material;
after cooling to room temperature, 5 parts of vinyl tributylketoxime silane, 3 parts of aminosilane (Shanghai Xin Yuan chemical Co., ltd.), 2 parts of epoxy silane (Guangzhou Jia chemical trade Co., ltd.) and 10 parts of methyl silicone oil (Shanghai Kain chemical Co., ltd.) are added and mixed for 25 minutes under the condition of vacuum degree of 0.08 MPa; and finally adding 5 parts of dioctyltin dilaurate and 0.1 part of terpene resin (Shanghai Duokang Utility Co., ltd.), reacting for 30 minutes under the condition of 0.08MPa of vacuum degree, then vacuum degassing for 20 minutes under 0.1MPa, and removing bubbles and part of low molecular substances generated in the reaction to obtain the solar photovoltaic edge sealing material with good storage stability, and sealing and preserving.
Example 2
A sealing material is prepared by the following steps:
according to parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane, 45 parts of dry stearic acid-treated white carbon black with the particle size range of 100-300 meshes (Kabot corporation in the United states), 30 parts of carbon black, 20 parts of sodium polyacrylate, 10 parts of polyacrylamide (FLOPAM FO 4350 SSH) and 15 parts of silane modified polyisobutene (Japanese Brillouin chemistry, EPION EP 103S) are stirred in a stirrer for 3 hours under the vacuum sealing condition at the temperature of 145 ℃ and the vacuum degree of 0.08MPa, and the mixture is uniformly mixed to obtain a main sizing material;
after cooling to room temperature, 5 parts of vinyl tributylketoxime silane, 5 parts of vinyl triacetonexime silane, 5 parts of aminosilane and 15 parts of methyl silicone oil are added and mixed for 25 minutes under the condition of 0.08MPa of vacuum degree; and finally adding 5 parts of dioctyltin dilaurate and 3 parts of carbon pentahydrogenated resin (Shanghai Duokang Co., ltd.) to react for 30 minutes under the condition of 0.08MPa of vacuum degree, and then vacuum degassing for 20 minutes under 0.1MPa to remove bubbles and part of low molecular substances generated in the reaction, thereby obtaining the solar photovoltaic edge sealing material with good storage stability, and sealing and preserving.
Example 3
In comparison with example 1, modified polyvinyl alcohol (Japanese synthetic chemistry) was used instead of sodium polyacrylate.
Example 4
In contrast to example 1, a siloxane-based amorphous-alpha-polyolefin (VESTOPLAAST-206, extra, USA) was used instead of the silane-modified polybutadiene.
Example 5
A sealing material is prepared from the same raw materials as in the embodiment 1, and the preparation method comprises the following steps:
according to parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane, 70 parts of dry stearic acid-treated white carbon black with the particle size range of 100-300 meshes, 50 parts of carbon black, 30 parts of sodium polyacrylate, 15 parts of polyacrylamide, 15 parts of silane modified polyisobutene and 160 parts of stearic acid-treated aluminum hydroxide are stirred in a stirrer for 3 hours under the vacuum sealing condition at 145 ℃ and the vacuum degree of 0.08MPa, and the mixture is uniformly mixed to obtain a main sizing material;
after cooling to room temperature, 15 parts of vinyl tributylketoxime silane, 5 parts of vinyl triacetonexime silane, 5 parts of aminosilane and 20 parts of methyl silicone oil are added and mixed for 25 minutes under the condition of 0.08MPa of vacuum degree; and finally adding 5 parts of dioctyltin dilaurate and 3 parts of carbon five hydrogenated resin, reacting for 30 minutes under the condition of 0.08MPa of vacuum degree, then vacuum degassing for 20 minutes under 0.1MPa, and removing bubbles and part of low molecular substances generated in the reaction to obtain the solar photovoltaic edge sealing material with good storage stability, and sealing and preserving.
Example 6
A sealing material is prepared from the same raw materials as in the embodiment 1, and the preparation method comprises the following steps:
according to parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane, 35 parts of dry stearic acid-treated white carbon black with the particle size range of 100-300 meshes, 25 parts of carbon black, 15 parts of sodium polyacrylate, 5 parts of polyacrylamide, 10 parts of silane modified polyisobutene and 30 parts of stearic acid-treated aluminum hydroxide are stirred in a stirrer for 3 hours under the vacuum sealing condition at 145 ℃ and the vacuum degree of 0.08MPa, and the mixture is uniformly mixed to obtain a main sizing material;
after cooling to room temperature, adding 3 parts of vinyl tributylketoxime silane, 2 parts of vinyl triacetonexime silane, 0.5 part of aminosilane and 10 parts of methyl silicone oil, and mixing for 25 minutes under the condition of 0.08MPa of vacuum degree; and finally, adding 0.1 part of dioctyltin dilaurate and 0.1 part of carbon five hydrogenated resin, reacting for 30 minutes under the condition of 0.08MPa of vacuum degree, then vacuum degassing for 20 minutes under 0.1MPa, and removing bubbles and part of low molecular substances generated in the reaction to obtain the solar photovoltaic edge sealing material with good storage stability, and sealing and storing.
Comparative example 1
Comparative example 1 provides a sealing material of the prior art. A preparation method of the sealing material comprises the following steps:
according to the parts by weight, 100 parts of hydroxyl-terminated polydimethylsiloxane, 45 parts of dry activated calcium carbonate with the particle size range of 100-300 meshes treated by stearic acid, 5 parts of white carbon black and 160 parts of aluminum hydroxide treated by stearic acid are mixed in a stirrer for 2 hours under the vacuum sealing condition at 145 ℃ and the vacuum degree of 0.08MPa to obtain a basic sizing material;
after cooling to room temperature, adding 25 parts of methyl silicone oil, 15 parts of vinyl tributyl ketoxime silane and 5 parts of methyl tributyl ketoxime silane, and mixing for 30 minutes under the vacuum sealing condition, wherein the vacuum degree is 0.08 MPa; and finally adding 2 parts of dibutyl tin dilaurate and 0.1 part of terpene resin, reacting for 20 minutes under vacuum sealing at the vacuum degree of 0.08MPa, then vacuum degassing for 20 minutes under the vacuum pressure of 0.1MPa, and removing bubbles and part of low-molecular substances generated in the reaction to obtain the single-component solar photovoltaic sealing material, and sealing and preserving.
Comparative example 2
Comparative example 2 the sealing material does not comprise silane-modified polybutadiene compared to example 1, with the modification of example 1.
Comparative example 3
Comparative example 3 the sealing material does not comprise sodium polyacrylate compared to example 1, with the modification of example 1.
Test data
Water vapor transmission rate: the thickness of the sample is 1mm, and the test is carried out according to GB/T21529-2008; lap shear strength: the test was performed according to GB/T7124-2008 using glass, aluminum profile lap joints. The specific test results are shown in the following table:
TABLE 1
As can be seen from the data in the table above, compared with the sealing material obtained by the existing photovoltaic module sealing technology, the sealing material obtained by the preparation method has the advantages that the water vapor transmittance is reduced by more than thousand times (from tens to zero), the water vapor transmittance of the material is greatly reduced, the edge sealing requirement of the photovoltaic module is met, the mechanical strength is improved to a certain extent, and good balance can be achieved between the sealing performance and the mechanical performance. Specifically, the water vapor transmission rate was most remarkably reduced by the addition of the water absorbent resin and the modified olefin polymer in the examples, as compared with comparative example 1. Compared with comparative example 2, the modified olefin polymer is not added, the water blocking effect of the material is poor, and the bonding strength with glass and aluminum profiles is also reduced to a certain extent; the water blocking effect of the material was poor compared to comparative example 3 without the addition of the water absorbing resin, was substantially the same as the prior art (comparative example 1), but exhibited good mechanical strength.
Example 7
The embodiment provides a solar cell module, which comprises cell pieces and multi-layer sealing structures arranged between the cell pieces, wherein at least two adjacent layers of sealing structures are sealed by the sealing material or the sealing material prepared by the preparation method of any one of the embodiment 1 to the embodiment 6.
Typically, but not by way of limitation, the solar cell assembly is a high efficiency cell such as a heterojunction cell or perovskite cell.
The solar cell module provided by the invention can effectively prevent the delamination of the edge sealant caused by the corrosion of the cell module by wet hot water vapor, solves the problem of the corrosion of the cell caused by the invasion of the edge water vapor, and well meets the requirements of edge sealing and packaging; meanwhile, the coupling agent is added, so that the purpose of bonding the aluminum profile frame and glass can be well achieved, the mechanical load requirement of the photovoltaic module is met, and the module laminated piece and the frame are effectively prevented from slipping.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (9)
1. The sealing material is characterized by comprising the following raw materials in parts by weight:
100 parts of an organosiloxane polymer; 60-120 parts of reinforcing filler; 20-45 parts of water-absorbent resin; 10-15 parts of modified olefin polymer; 0.5-5 parts of coupling agent; 5-20 parts of cross-linking agent; 10-20 parts of plasticizer; 0.1-5 parts of catalyst; 30-160 parts of flame retardant; 0.1-3 parts of tackifier;
the modified olefin polymer is formed by mixing one or more of silane modified polybutadiene, silane modified polyisobutene and siloxy amorphous-alpha-polyolefin according to any proportion;
the water-absorbent resin is formed by mixing one or more of polyacrylate, modified polyvinyl alcohol and polyacrylamide according to any proportion.
2. The sealing material according to claim 1, wherein the modified polyvinyl alcohol is a compound having a hydrophilic group of hydroxyl group, carboxyl group or sodium carboxylate modified and grafted on a polyvinyl alcohol main chain.
3. The sealing material according to any one of claims 1 to 2, wherein at least one of the following (1) to (9) is satisfied:
(1) The organic siloxane polymer is hydroxyl-terminated polydimethylsiloxane;
(2) The reinforcing filler is formed by mixing one or more of active calcium carbonate, carbon black, white carbon black and talcum powder according to any proportion;
(3) The mesh number of the reinforcing filler is 100-300 meshes;
(4) The coupling agent is formed by mixing one or more of aminosilane, epoxy silane, vinyl silane and acyloxy silane according to any proportion;
(5) The cross-linking agent is formed by mixing one or more of vinyl tributyl ketoxime silane, vinyl triacetonic oxime silane and vinyl tri (methyl isobutyl ketoxime) silane according to any proportion;
(6) The plasticizer is methyl silicone oil;
(7) The catalyst is formed by mixing one or more of dioctyltin dilaurate, dibutyl tin dilaurate, stannous octoate and monobutyl tin oxide according to any proportion;
(8) The flame retardant is formed by mixing one or more of aluminum hydroxide, magnesium hydroxide and zinc borate according to any proportion;
(9) The tackifier is one or more of rosin resin, terpene resin, phenolic resin, carbon five hydrogenation resin and carbon nine hydrogenation resin, which are mixed according to any proportion.
4. A method of producing the sealing material according to any one of claims 1 to 3, comprising the steps of:
s1, mixing an organic siloxane polymer, a water-absorbent resin, a modified olefin polymer, a reinforcing filler and a flame retardant under a vacuum condition to obtain a main sizing material;
s2, adding a cross-linking agent, a coupling agent and a plasticizer, mixing under vacuum, and adding a catalyst and a tackifier for reaction to obtain the sealing material.
5. The method of producing a sealing material according to claim 4, further comprising a degassing step after the step S2 of adding the catalyst and the tackifier to react.
6. The method of producing a sealing material according to claim 4 or 5, wherein the mixing temperature in step S1 is 130 to 150 ℃, the vacuum degree is 0.05 to 0.1MPa, and the mixing time is 2 to 3 hours.
7. The method for producing a sealing material according to claim 4 or 5, wherein the mixing temperature in step S2 is 20 to 30 ℃, the vacuum degree is 0.05 to 0.1MPa, and the mixing time is 20 to 30 minutes;
and/or the reaction temperature in the step S2 is 20-30 ℃, the vacuum degree is 0.05-0.1MPa, and the reaction time is 30-35min.
8. The method for producing a sealing material according to claim 5, wherein the vacuum degree in the degassing step is 0.05 to 0.1MPa, and the time is 15 to 20 minutes.
9. A solar cell module, comprising a cell and a plurality of sealing structures arranged between the cell, wherein at least two adjacent sealing structures are sealed by the sealing material according to any one of claims 1 to 3 or the sealing material prepared by the preparation method according to any one of claims 4 to 8.
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| CN102321450A (en) * | 2011-08-23 | 2012-01-18 | 杭州之江有机硅化工有限公司 | Solar energy photovoltaic assembly organosilicon sealant material and preparation method thereof |
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