Preparation method for underwater LED lamp potting glue
A technology of LED lamps and potting glue, applied in the direction of adhesives, etc., can solve the problems of poor solvent resistance, achieve low cost, good toughness and plasticity, and improve adhesion and high temperature stability.
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Embodiment 1
[0028] A preparation method for underwater LED lamp potting glue, said preparation method comprising:
[0029] S1: 20 parts by weight of 60% epoxyalkyl alkoxysilane, 10 parts of allyltriethoxysilane, 280 parts of methyl Diethyl isopropanone, 5 parts of triethylamine, 60 parts of deionized water were added dropwise within 40 minutes under stirring at room temperature, hydrolysis and polycondensation reaction was carried out at reflux temperature of 60°C for 6 hours, the organic layer was separated, and 0.2wt% ammonium salt solution and deionized Wash with ionic water, and distill under reduced pressure at 80°C to obtain component A, a colorless, transparent viscous liquid;
[0030] S2: 20 parts by weight of phenyltrimethyloxysilane and 1 part of trifluoromethanesulfonic acid were added dropwise to 10 parts of deionized water within 20 minutes while stirring at room temperature, heated to reflux for 1 hour, and cooled to room temperature. Add toluene and water to wash, and dist...
Embodiment 2
[0034] A preparation method for underwater LED lamp potting glue, said preparation method comprising:
[0035] S1: The parts by weight are respectively 40 parts by weight of 3-functional chain segment fractions of 80% epoxyalkyl alkoxysilane, 15 parts of allyltriethoxysilane, 320 parts of methyl Isopropyl ketone, 10 parts of triethylamine, 80 parts of deionized water were added dropwise within 40 minutes under stirring at room temperature, and the hydrolysis and polycondensation reaction was carried out at reflux temperature of 80°C for 10 hours. Wash with water, distill under reduced pressure at 120°C to obtain component A, a colorless, transparent viscous liquid;
[0036] S2: 40 parts by weight of phenyltrimethyloxysilane and 2 parts of trifluoromethanesulfonic acid were added dropwise to 20 parts of deionized water within 30 minutes while stirring at room temperature, heated to reflux for 2 hours, and cooled to room temperature. Add toluene and water to wash, and distill u...
Embodiment 3
[0040] A preparation method for underwater LED lamp potting glue, said preparation method comprising:
[0041] S1: 30 parts by weight of 30 parts of epoxy alkyl alkoxysilane, 12 parts of allyltriethoxysilane, 300 parts of methyl Isopropyl ketone, 8 parts of triethylamine, 70 parts of deionized water were added dropwise within 40 minutes under stirring at room temperature, hydrolysis and polycondensation reaction was carried out at reflux temperature of 70°C for 8 hours, the organic layer was separated, and 0.2wt% ammonium salt solution and deionized Wash with water, and distill under reduced pressure at 100°C to obtain component A, a colorless, transparent viscous liquid;
[0042] S2: 30 parts by weight of phenyltrimethyloxysilane and 1.5 parts of trifluoromethanesulfonic acid were added dropwise to 15 parts of deionized water within 25 minutes while stirring at room temperature, heated to reflux for 1.5 hours, and cooled to room temperature , add toluene and water to wash, and...
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Abstract
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