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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.

Active Publication Date: 2017-10-20
GOLOHO TECH CHANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone potting materials also have certain defects, such as poor mechanical properties, wear resistance, and solvent resistance

Method used

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  • Preparation method for underwater LED lamp potting glue
  • Preparation method for underwater LED lamp potting glue
  • Preparation method for underwater LED lamp potting glue

Examples

Experimental program
Comparison scheme
Effect test

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

The invention discloses a method for preparing potting glue for underwater LED lamps. Firstly, polyfunctional epoxy alkoxysilane, alkoxysilane, methyl isopropyl ketone and triethylamine are stirred, hydrolyzed and polycondensed After the reaction, A component was obtained by distillation under reduced pressure; phenyltrimethyloxysilane and trifluoromethanesulfonic acid were stirred at room temperature to obtain a methylphenylsiloxane oligomer containing Si-OH groups, and the obtained Mix and stir the above oligomers, aluminum catalysts and azo compounds to obtain component B; finally, mix component A and component B according to a weight ratio of 3:1 to 5:1 and stir evenly. After pressure defoaming, it is cured to be used for underwater LED lamp potting. The obtained glue for packaging LED lamps has high water resistance and light transmittance, good cohesive force, good toughness and plasticity, and can effectively improve the service life of LED lamps.

Description

technical field [0001] The invention relates to a preparation method of underwater potting glue. More specifically, the present invention relates to a preparation method for underwater LED lamp potting glue. Background technique [0002] Potting glue, also known as electronic glue, is a broad term. Used for bonding, sealing, potting and coating protection of electronic components. The potting glue is liquid before it is cured and has fluidity. The viscosity of the glue varies according to the material, performance and production process of the product. Only when the potting glue is completely cured can its use value be realized. After curing, it can play the role of waterproof, moisture-proof, dust-proof, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance, and shock resistance. With the expansion of the application range, higher requirements are put forward for the comprehensive performance of potting materials. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C08G77/20C08G77/18C08G77/16C08G77/08
Inventor 董佳瑜董春保
Owner GOLOHO TECH CHANGZHOU CO LTD
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