CN115772382B - Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof - Google Patents
Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof Download PDFInfo
- Publication number
- CN115772382B CN115772382B CN202211501263.1A CN202211501263A CN115772382B CN 115772382 B CN115772382 B CN 115772382B CN 202211501263 A CN202211501263 A CN 202211501263A CN 115772382 B CN115772382 B CN 115772382B
- Authority
- CN
- China
- Prior art keywords
- parts
- mpa
- filler
- silicone sealant
- silicone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000032683 aging Effects 0.000 title claims abstract description 27
- 239000004590 silicone sealant Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 8
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 30
- 229910000077 silane Inorganic materials 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 22
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 18
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 18
- 229920002050 silicone resin Polymers 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 10
- 239000002516 radical scavenger Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 3
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 36
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 32
- 238000004513 sizing Methods 0.000 claims description 27
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 26
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 12
- 229920002554 vinyl polymer Polymers 0.000 claims description 12
- 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 11
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 11
- 235000021355 Stearic acid Nutrition 0.000 claims description 10
- 239000001110 calcium chloride Substances 0.000 claims description 10
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 10
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 10
- 239000008117 stearic acid Substances 0.000 claims description 10
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 8
- 229920002545 silicone oil Polymers 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 4
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 claims description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 3
- 229920013822 aminosilicone Polymers 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- MMGVVYCBXBYXRR-UHFFFAOYSA-L 2-acetyl-3-oxobutanoate;dibutyltin(2+) Chemical compound CCCC[Sn+2]CCCC.CC(=O)C(C(C)=O)C([O-])=O.CC(=O)C(C(C)=O)C([O-])=O MMGVVYCBXBYXRR-UHFFFAOYSA-L 0.000 claims description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000565 sealant Substances 0.000 abstract description 14
- 230000014759 maintenance of location Effects 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 description 20
- 230000018044 dehydration Effects 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 11
- 239000000377 silicon dioxide Substances 0.000 description 10
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 9
- 229910021485 fumed silica Inorganic materials 0.000 description 9
- 229940083037 simethicone Drugs 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 239000004945 silicone rubber Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SHWQWXGIWFEYTA-UHFFFAOYSA-N 2,2,4,4,6,6-hexakis-phenyl-1,3,5,2,4,6-triazatrisilinane Chemical compound N1[Si](C=2C=CC=CC=2)(C=2C=CC=CC=2)N[Si](C=2C=CC=CC=2)(C=2C=CC=CC=2)N[Si]1(C=1C=CC=CC=1)C1=CC=CC=C1 SHWQWXGIWFEYTA-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- AYDSPSJZGVYVNL-UHFFFAOYSA-N C=1C=CC=CC=1[SiH](N(C)[Si](C)(C)C)C1=CC=CC=C1 Chemical compound C=1C=CC=CC=1[SiH](N(C)[Si](C)(C)C)C1=CC=CC=C1 AYDSPSJZGVYVNL-UHFFFAOYSA-N 0.000 description 1
- BUEPLEYBAVCXJE-UHFFFAOYSA-N [ethenyl-methyl-(trimethylsilylamino)silyl]ethene Chemical compound C(=C)[Si](N[Si](C)(C)C)(C=C)C BUEPLEYBAVCXJE-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004589 rubber sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- 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
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a silicone sealant for a damp-heat aging resistant photovoltaic module, a preparation method and application thereof, wherein the sealant comprises the following raw materials in parts by weight: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 10-30 parts of plasticizer, 1-10 parts of MQ silicone resin, 100-200 parts of filler, 1-15 parts of modified filler, 5-15 parts of cross-linking agent, 2-4 parts of coupling agent, 1-2 parts of catalyst and 1-10 parts of hydroxyl scavenger; wherein the modified filler is silane modified calcium chloride and/or magnesium chloride. Through adding MQ silicone resin, modified filler and hydroxyl scavenger, the product still has good tensile strength, elasticity and tensile strength retention rate after 1000 hours of double 85 wet heat aging.
Description
Technical Field
The invention belongs to the technical field of silicone rubber, and particularly relates to a silicone sealant for a damp-heat aging resistant photovoltaic module, and a preparation method and an application method thereof.
Background
The room temperature vulcanized silicone sealant has excellent bonding sealing property, no corrosiveness to a base material, good physical property and electrical property in a severe environment, and convenient use, and is widely applied to the fields of construction, electronic appliances, aerospace, automobile industry, medicine and health, new energy sources and the like.
Because the solar cell slice has physical and chemical defects of thinness, brittleness, easy oxidation and the like, the solar cell slice is easy to permanently damage after being exposed to natural conditions such as air, rainwater and the like for a long time, so that the solar power generation is difficult to be applied on a large scale under severe natural conditions. Therefore, to realize the industrial application of solar power generation, it is required to seal and package the solar power generation. Such sealing and packaging are a critical technique for achieving commercial production and large-scale application of photovoltaic power generation. The application environment of the solar photovoltaic module glue is mainly outdoor, which puts forward the following performance requirements on the performance of the solar photovoltaic module glue, namely, good weather resistance, and resistance to erosion such as severe cold, summer heat, storm and the like; the silicone sealant product is required to have good tensile strength, elasticity and tensile strength retention rate after 1000 hours of double-85 wet heat aging.
Disclosure of Invention
The invention provides a silicone sealant for a damp-heat aging resistant photovoltaic module, a preparation method and application thereof, and solves the problems that the existing silicone sealant product is poor in mechanical property and retention rate of mechanical property after 1000 hours of double-85 damp-heat aging, so that adhesion is invalid, and the solar photovoltaic module cannot be sealed and packaged, and the like.
The technical scheme of the invention is that the single-component silicone sealant for the damp-heat aging resistant photovoltaic module comprises the following raw materials in parts by weight: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 10-30 parts of plasticizer, 1-10 parts of MQ silicone resin, 100-200 parts of filler, 1-15 parts of modified filler, 5-15 parts of cross-linking agent, 2-4 parts of coupling agent, 1-2 parts of catalyst and 1-10 parts of hydroxyl scavenger; wherein the modified filler is silane modified calcium chloride and/or magnesium chloride.
Further, the viscosity of the alpha, omega-dihydroxy polydimethylsiloxane is 20000-100000 mPa.s at 25 ℃.
Further, the plasticizer is one or more of dimethyl silicone oil, phenyl silicone oil, hydrogen-containing silicone oil or amino silicone oil, and the viscosity at 25 ℃ is 100-1500 mPa.s.
Further, the MQ silicon resin is a mixture of MQ resin and silicone oil according to the mass ratio of 1-2:5-10, wherein the molar ratio of M to Q chain links in the MQ resin is 0.60:1-0.90:1; the MQ resin is one or more of methyl MQ resin, methyl phenyl MQ resin or phenyl MQ resin.
Further, the filler is formed by mixing nano calcium carbonate, gas-phase white carbon black and silicon micropowder according to the ratio of 80-200:0-10:0-50; wherein the nano calcium carbonate is modified by stearic acid, aluminate coupling agent, borate coupling agent or silane coupling agent, and the particle size of the filler is 40-100 nm.
Further, the modified filler has a particle size of 100 μm or less, wherein the moisture content is less than 5wt%; the silane is one or more of N- (2-aminoethyl) -3-aminopropyl trimethoxy silane, gamma-aminopropyl triethoxy silane, N- (beta-aminoethyl) -gamma-aminopropyl triethoxy silane, gamma-methacryloxypropyl trimethoxy silane, epoxypropyl triethoxy silane and mercaptopropyl trimethoxy silane; the mass ratio of the calcium chloride and/or the magnesium chloride to the silane is 1-3: 10.
Further, the method comprises the steps of, the hydroxyl scavenger is hexamethyldisilazane tetramethyl divinyl disilazane at least one of diphenyl tetramethyl disilazane and hexaphenyl cyclotrisilazane.
Further, the cross-linking agent is at least one of methyl tributyl ketoxime group siloxane, vinyl tributyl ketoxime group siloxane, phenyl tributyl ketoxime group siloxane, tetrabutyl ketoxime group siloxane, dimethyl dibutyl ketoxime group siloxane and methyl vinyl dibutyl ketoxime group siloxane.
Further, the coupling agent is at least one of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, gamma-aminopropyl triethoxysilane, gamma-aminopropyl trimethoxysilane and N- (2-aminoethyl) -3-aminopropyl triethoxysilane; the catalyst is at least one of dibutyl tin diacetate, dibutyl tin dilaurate, dibutyl tin diacetylacetonate and dibutyl tin diacetylacetate.
The invention also relates to a preparation method of the silicone sealant, which comprises the following steps:
S1, uniformly mixing alpha, omega-dihydroxyl polydimethylsiloxane, a plasticizer and a kneader, dehydrating at 100-120 ℃ under the vacuum degree of-0.08 to-0.1 MPa, adding a filler and a modified filler, and uniformly dispersing to obtain a basic sizing material;
s2, adding MQ resin, a cross-linking agent, a coupling agent and a catalyst into the material obtained in the step S1, uniformly dispersing under the condition of the vacuum degree of-0.08 to-0.1 MPa, adding a hydroxyl scavenger into the material, and uniformly dispersing and mixing under the condition of the vacuum degree of-0.08 to-0.1 MPa, thereby obtaining the single-component silicone sealant for the humidity and heat aging resistant photovoltaic module.
The invention also relates to application of the single-component silicone sealant for the wet heat aging resistant photovoltaic module in solar photovoltaic module adhesion.
The invention has the following beneficial effects:
By adding the MQ silicone resin, the modified filler and the hydroxyl scavenger, the initial tensile strength, the tensile strength after wet heat aging and the tensile strength retention rate of the product are improved, and meanwhile, the sample can keep better elasticity after wet heat aging. The organic part in the MQ silicone resin can improve the compatibility with silicone rubber, and the silicone chain link can improve the mechanical strength, cohesive strength, peeling strength and high-temperature and high-humidity resistance of the silicone rubber. Calcium chloride and/or magnesium chloride are added, so that moisture is effectively absorbed in the sizing material, and the methyl on the upper side of a molecular chain of the sizing material is prevented from being oxidized and degraded under the combined action of oxygen after the moisture enters the sizing material, so that the molecular chain of the silicone rubber is broken; meanwhile, silane is adopted to modify the hydroxyl-terminated polysiloxane, so that the compatibility of calcium chloride and/or magnesium chloride and the hydroxyl-terminated polysiloxane is improved, and the hydroxyl-terminated polysiloxane is more uniformly dispersed in the base adhesive. For the complex application of hexamethyldisilazane and calcium chloride, as hexamethyldisilazane is added independently, the hexamethyldisilazane can react with hydroxyl and moisture in the storage process to generate weak alkaline substance ammonia, and the calcium chloride can absorb the ammonia, so that the storage stability and the humidity and heat aging resistance of the sealant are further improved.
The silicone sealant for the damp-heat aging resistant photovoltaic module provided by the invention is of a single-component design, is convenient to use, and can be widely used for sealing and packaging the solar photovoltaic module.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Example 1:
100 parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 100 parts of sodium stearate modified nano calcium carbonate, 1 part of fumed silica and 10 parts of silica micropowder are put into a kneader to be uniformly mixed, dehydrated for 180 minutes at a high temperature of 100-120 ℃ and a vacuum degree of minus 0.08MPa, and a basic sizing material is obtained after the dehydration at the high temperature is completed;
adding 2 parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.6:1) into a planetary machine, stirring and dispersing for 30min under the vacuum degree of-0.1 MPa, adding a basic sizing material after uniformly mixing, stirring and dispersing for 30min under the vacuum degree of-0.1 MPa, adding 9 parts of methyl tributyl ketoxime silane, 3 parts of vinyl tributyl ketoxime silane, 2 parts of KH-550 and 1 part of dibutyl tin dilaurate into the planetary machine, and stirring and dispersing for 30min under the vacuum degree of-0.1 MPa. Adding 1 part of hexamethyldisilazane into a planetary machine, stirring and dispersing for 30min under the vacuum degree of-0.1 MPa to obtain a sealant product.
Example 2:
100 parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of modified calcium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at high temperature for 180 minutes, wherein the vacuum degree is minus 0.08MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed; the preparation method of the modified calcium chloride comprises the following steps: and (3) placing 100 parts of calcium chloride powder into a high-speed stirrer for stirring and dispersing for 30 minutes, weighing 10 parts of modifier N- (2-aminoethyl) -3-aminopropyl trimethoxysilane after dispersing, continuing stirring and dispersing at high speed for 2 hours, and then sealing and preserving to obtain the modified calcium chloride powder.
2 Parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.6:1) are added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. Thus obtaining the sealant product.
Example 3
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of modified magnesium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at high temperature for 180 minutes, wherein the vacuum degree is minus 0.08MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed; the preparation method of the modified magnesium chloride comprises the following steps: and (3) placing 100 parts of calcium chloride powder into a high-speed stirrer for stirring and dispersing for 30 minutes, weighing 10 parts of modifier N- (2-aminoethyl) -3-aminopropyl trimethoxysilane after the dispersing is finished, continuing stirring and dispersing for 2 hours at a high speed, and sealing and preserving to obtain the modified magnesium chloride powder.
2 Parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.6:1) are added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. Thus obtaining the sealant product.
Example 4
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of modified calcium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at high temperature for 180 minutes, wherein the vacuum degree is-0.1 MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed;
2 parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.4:1) are added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. And obtaining the sealant product.
Example 5
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of modified calcium chloride are put into a kneader and uniformly mixed, and are dehydrated at high temperature for 180min, the vacuum degree is between-0.08 and-0.1 MPa, the temperature is between 100 and 120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed;
2 parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.96:1) are added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. And obtaining the sealant product.
Example 6
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 100 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica and 10 parts of silica micropowder are put into a kneader for uniform mixing, and are dehydrated at high temperature for 180min, the vacuum degree is minus 0.1MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed.
9 Parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine with basic sizing materials, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. And obtaining the sealant product.
Example 7
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of unmodified calcium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at a high temperature for 180 minutes, wherein the vacuum degree is-0.08 MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed;
2 parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.6:1) are added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. And obtaining the sealant product.
Example 8
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of unmodified calcium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at a high temperature for 180 minutes, wherein the vacuum degree is minus 0.08MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed.
9 Parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine with basic sizing materials, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 1 part of hexamethyldisilazane was charged into a planetary machine and dispersed under stirring at a vacuum of-0.1 MPa for 30min. And obtaining the sealant product.
Example 9
100 Parts of 20000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 10 parts of simethicone, 90 parts of stearic acid modified nano calcium carbonate, 1 part of fumed silica, 10 parts of silica micropowder and 10 parts of modified calcium chloride are put into a kneader to be uniformly mixed, and the mixture is dehydrated at high temperature for 180 minutes, wherein the vacuum degree is minus 0.08MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed; wherein the average particle size of the nano calcium carbonate is 50nm.
Adding 2 parts of methyl MQ silicone resin into a planetary machine, stirring and dispersing for 30min under the vacuum degree of-0.1 MPa, adding the basic sizing material after uniformly mixing, and stirring and dispersing for 30min under the vacuum degree of-0.1 MPa. 9 parts of methyltributyloximony silane, 3 parts of vinyl tributylketoxime silane, 2 parts of KH-550 and 1 part of dibutyltin dilaurate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. Stirring and dispersing for 30min under the vacuum degree of-0.1 MPa. And obtaining the sealant product.
Example 10
100 Parts of 2000 mPa.s alpha, omega-dihydroxy polydimethylsiloxane, 15 parts of amino silicone oil, 90 parts of silane coupling agent modified nano calcium carbonate, 10 parts of gas-phase white carbon black, 50 parts of silica micropowder and 10 parts of modified calcium chloride are put into a kneader to be uniformly mixed, dehydrated for 180 minutes at high temperature, the vacuum degree is-0.08 MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed; the modified calcium chloride was prepared as in example 2.
10 Parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.8:1) is added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 5 parts of vinyl tributyl ketoxime-based siloxane, 10 parts of phenyl tributyl ketoxime-based siloxane, 4 parts of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane and 2 parts of dibutyltin diacetate are added into a planetary machine, and stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 5 parts of tetramethyl divinyl disilazane are added to a planetary machine and dispersed under stirring for 30min under a vacuum of-0.1 MPa. Thus obtaining the sealant product.
Example 11
100 Parts of 5000 mPa.s alpha, omega-dihydroxyl polydimethylsiloxane, 10 parts of phenyl silicone oil, 150 parts of nano calcium carbonate modified by a borate coupling agent, 10 parts of silicon micropowder and 10 parts of modified calcium chloride are put into a kneader and uniformly mixed, and are dehydrated at high temperature for 180min, wherein the vacuum degree is-0.09 MPa, the temperature is 100-120 ℃, and the basic sizing material is obtained after the high-temperature dehydration is completed; the modified calcium chloride was prepared as in example 2.
5 Parts of methyl MQ silicone resin (the molar ratio of M to Q chain links is 0.8:1) is added into a planetary machine, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa, and after being uniformly mixed, the basic sizing material is added, stirred and dispersed for 30min under the vacuum degree of-0.1 MPa. 10 parts of tetrabutylketoxime, 3 parts of N- (2-aminoethyl) -3-aminopropyl triethoxysilane and 1 part of dibutyltin diacetylacetonate were added to the planetary machine, and stirred and dispersed under a vacuum of-0.1 MPa for 30 minutes. 10 parts of hexaphenyl cyclotrisilazane are added to a planetary machine and dispersed for 30min under stirring at a vacuum of-0.1 MPa. Thus obtaining the sealant product.
The results of the performance test of the above examples are shown in table 1. The detection standard is national standard GB/T29595-2013 silicon rubber sealant for sealing materials of photovoltaic modules for the ground.
TABLE 1
As can be seen from the results in table 1: the comparison of the results of the example 2 and the example 6 shows that the initial tensile strength, the tensile strength after the wet heat aging and the tensile strength retention rate of the product are improved by adding the MQ silicone resin, the modified calcium chloride and the hexamethyldisilazane, and meanwhile, the sample can keep better elasticity after the wet heat aging. The comparison result of the example 2 and the example 3 shows that the modified magnesium chloride can effectively improve the humidity resistance and the heat aging resistance of the sample. In the comparative examples 1 and 2, the initial mechanical property and the retention rate of the mechanical property of the product after the wet heat aging are improved by adding the modified calcium chloride and the hexamethyldisilazane, and meanwhile, the sample can also store better elasticity after the wet heat aging. In comparative examples 2 and 7, unmodified calcium chloride is used as a filler, so that the compatibility with the base rubber is poor, and the powder is easy to agglomerate and cannot be uniformly dispersed in the base rubber, so that the initial mechanical properties and the mechanical properties after humid heat aging are poor. In comparative examples 2 and 9, the effect of compounding hexamethyldisilazane with calcium chloride is optimal, and as hexamethyldisilazane is added alone, the hexamethyldisilazane reacts with hydroxyl and moisture to generate ammonia gas as a weak alkaline substance in the storage process, and calcium chloride can absorb the ammonia gas, so that the storage stability and the wet heat aging resistance of the sealant are further improved. In conclusion, the MQ silicon resin, the modified calcium chloride and the hexamethyldisilazane can be used for compounding, so that the initial tensile strength, the tensile strength after humid heat aging and the tensile strength retention rate of the product can be effectively improved, and meanwhile, the sample can keep good elasticity after humid heat aging.
The above examples describe preferred embodiments of the present invention, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The single-component silicone sealant for the damp-heat aging resistant photovoltaic module is characterized by comprising the following raw materials in parts by weight: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 10-30 parts of plasticizer, 1-10 parts of MQ silicone resin, 100-200 parts of filler, 1-15 parts of modified filler, 5-15 parts of cross-linking agent, 2-4 parts of coupling agent, 1-2 parts of catalyst and 1-10 parts of hydroxy scavenger hexamethyldisilazane; wherein the modified filler is silane modified calcium chloride and/or magnesium chloride; the MQ silicon resin is methyl MQ silicon resin, and the molar ratio of M to Q chain links is 0.60:1-0.90:1; the filler is formed by mixing nano calcium carbonate, gas-phase white carbon black and silicon micropowder according to the ratio of 80-200:0-10:0-50, wherein the nano calcium carbonate is modified by stearic acid, an aluminate coupling agent, a borate coupling agent or a silane coupling agent; the viscosity of the alpha, omega-dihydroxy polydimethylsiloxane is 20000-100000mPa.s at 25 ℃.
2. The silicone sealant according to claim 1, wherein: the plasticizer is one or more of dimethyl silicone oil, phenyl silicone oil, hydrogen-containing silicone oil or amino silicone oil, and the viscosity at 25 ℃ is 100-1500 Pa.s.
3. The silicone sealant according to claim 1, wherein: the particle size of the filler is 40-100 nm.
4. The silicone sealant according to claim 1, wherein: the particle size of the modified filler is below 100 mu m, wherein the moisture content is below 5wt%; the silane is one or more of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, gamma-aminopropyl triethoxysilane, N-beta aminoethyl gamma-aminopropyl trimethoxysilane, N-beta aminoethyl gamma-aminopropyl triethoxysilane, gamma-methacryloxypropyl trimethoxysilane, epoxypropyl triethoxysilane and mercaptopropyl trimethoxysilane; the mass ratio of the calcium chloride and/or the magnesium chloride to the silane is 1-3: 10.
5. The silicone sealant according to claim 1, wherein: the cross-linking agent is at least one of methyl tributyl ketoxime group siloxane, vinyl tributyl ketoxime group siloxane, phenyl tributyl ketoxime group siloxane, tetrabutyl ketoxime group siloxane, dimethyl dibutyl ketoxime group siloxane and methyl vinyl dibutyl ketoxime group siloxane.
6. The silicone sealant according to claim 1, wherein: the coupling agent is at least one of N- (2-aminoethyl) -3-aminopropyl trimethoxysilane, gamma-aminopropyl triethoxysilane, gamma-aminopropyl trimethoxysilane and N- (2-aminoethyl) -3-aminopropyl triethoxysilane; the catalyst is at least one of dibutyl tin diacetate, dibutyl tin dilaurate, dibutyl tin diacetylacetonate and dibutyl tin diacetylacetate.
7. The method for preparing the silicone sealant according to any one of claims 1 to 6, which is characterized by comprising the following specific steps:
S1, putting alpha, omega-dihydroxyl polydimethylsiloxane and a plasticizer into a kneader, uniformly mixing, dehydrating at 100-120 ℃ under the vacuum degree of-0.08 to-0.1 MPa, adding a filler and a modified filler, and uniformly dispersing to obtain a basic sizing material;
S2, uniformly mixing MQ resin, adding the materials obtained in the step S1, uniformly mixing again, adding a cross-linking agent, a coupling agent and a catalyst, uniformly dispersing under the condition of the vacuum degree of-0.08 to-0.1 MPa, finally adding a hydroxyl scavenger into the materials, and uniformly dispersing under the condition of the vacuum degree of-0.08 to-0.1 MPa, thereby obtaining the single-component silicone sealant for the humidity and heat aging resistant photovoltaic module.
8. The application of the single-component silicone sealant for the damp-heat aging resistant photovoltaic module in the bonding of solar photovoltaic modules according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211501263.1A CN115772382B (en) | 2022-11-28 | 2022-11-28 | Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211501263.1A CN115772382B (en) | 2022-11-28 | 2022-11-28 | Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115772382A CN115772382A (en) | 2023-03-10 |
| CN115772382B true CN115772382B (en) | 2024-10-18 |
Family
ID=85390597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211501263.1A Active CN115772382B (en) | 2022-11-28 | 2022-11-28 | Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115772382B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116589968A (en) * | 2023-04-17 | 2023-08-15 | 天合光能股份有限公司 | Sealant and preparation method and application thereof |
| CN116554832A (en) * | 2023-05-31 | 2023-08-08 | 广州集泰化工股份有限公司 | Sealant and preparation method and application thereof |
| CN117511497B (en) * | 2023-11-13 | 2024-08-20 | 武汉中科先进材料科技有限公司 | Flame-retardant heat-conducting dealcoholized glue and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627940A (en) * | 2012-03-28 | 2012-08-08 | 北京化工大学常州先进材料研究院 | Single-component silicone sealant for automobile lamp and preparation method of single-component silicone sealant |
| CN104277759A (en) * | 2013-07-10 | 2015-01-14 | 浙江新安化工集团股份有限公司 | Ageing resistant type solar photovoltaic component sealing material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627770B (en) * | 2018-12-25 | 2021-07-27 | 广州市白云化工实业有限公司 | Dealcoholized condensed type double-component room temperature vulcanized silicone rubber and preparation method thereof |
-
2022
- 2022-11-28 CN CN202211501263.1A patent/CN115772382B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627940A (en) * | 2012-03-28 | 2012-08-08 | 北京化工大学常州先进材料研究院 | Single-component silicone sealant for automobile lamp and preparation method of single-component silicone sealant |
| CN104277759A (en) * | 2013-07-10 | 2015-01-14 | 浙江新安化工集团股份有限公司 | Ageing resistant type solar photovoltaic component sealing material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 脱醇型RTV-1硅酮密封胶贮存稳定性的研究;孙雨声等;《粘接》;20180615(第06期);第37-40页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115772382A (en) | 2023-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115772382B (en) | Silicone sealant for damp-heat aging resistant photovoltaic module, and preparation method and application thereof | |
| CN101353563B (en) | Single-component silicone fluid sealant for solar energy cell assembly and manufacturing method thereof | |
| CN102965069B (en) | A kind of resistance to sulfuration LED silica gel | |
| CN103937442B (en) | High-adhesion single-component takes off oxime type room temperature vulcanized silicone rubber sealing agent and preparation method | |
| CN101914364B (en) | UV (ultraviolet) curing silicone sealant and preparation method thereof | |
| CN102093720B (en) | Ketoxime type room temperature vulcanized silicone rubber with long storage period and preparation method thereof | |
| CN107880797A (en) | The special wet-heat resisting high intensity structural silicone adhesive of photovoltaic module | |
| CN113493614B (en) | High-efficiency bonding bi-component room temperature vulcanized silicone rubber and preparation method thereof | |
| CN115260981A (en) | Single-component transparent silicone structural sealant for photovoltaic and preparation method thereof | |
| CN111073577B (en) | Environment-friendly MS sealant and preparation method thereof | |
| CN105255439A (en) | High-elongation two-component silicone structural adhesive and preparation method thereof | |
| CN115772264B (en) | Alkoxy-terminated polysiloxane with self-adhesive property, and preparation method and application thereof | |
| CN113512393A (en) | Soaking-resistant flame-retardant single-component silane modified polyether sealant and preparation method thereof | |
| CN113150740A (en) | Ketoxime type silicone sealant with assistant precipitation resistance effect and preparation method thereof | |
| CN109181623B (en) | Silicone sealant for fast curing photovoltaic module and preparation method thereof | |
| CN119019978B (en) | A dealcoholized organic silicon sealant for photovoltaic modules | |
| CN118406468A (en) | High-heat-conductivity pouring sealant and preparation method thereof | |
| CN112210341B (en) | Double-vulcanization system building sealant and preparation method thereof | |
| CN112694863A (en) | Single-component polyurethane electronic component fixing glue and preparation method and application thereof | |
| CN103740322A (en) | Inflaming retarding type solar photovoltaic module sealant | |
| CN115404035B (en) | Polyurethane adhesive with high heat conduction and weather resistance for automobile lithium battery and preparation method thereof | |
| CN112375508B (en) | Curing agent and two-component silicone sealant using same | |
| CN117186650A (en) | High-heat-conductivity flexible silica gel gasket and preparation method thereof | |
| CN119709106A (en) | Silicone sealant for low-water vapor transmittance photovoltaic module and preparation method thereof | |
| CN112239643A (en) | Neutral transparent silicone adhesive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |