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Phenyl-series high-refractive-index LED loading glue and preparation method thereof

A high-refractive index, phenyl-based technology, applied in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems that affect the service life and luminous performance of LEDs, easy yellowing, heat resistance, and weather resistance and poor moisture resistance, etc., to achieve good encapsulation effect, sufficient curing process, and good bonding strength

Inactive Publication Date: 2014-12-17
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials have poor heat resistance, weather resistance and humidity resistance, and are prone to yellowing, which seriously affect the service life and luminous performance of LEDs

Method used

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  • Phenyl-series high-refractive-index LED loading glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) The synthetic method step of vinyl-containing polysiloxane in A component is as follows:

[0036] Add 40g of phenyltrimethoxysilane, 30g of diphenyldimethoxysilane, 20g of tetramethyldivinyl disiloxane, 5g of silane coupling agent KH-570 to a 250ml round bottom flask, Mix evenly, add 9.5g ethanol as solvent, then add 0.5g tetrabutylammonium hydroxide, heat and stir at 80°C for 2h, stop heating, add 0.1g trifluoromethanesulfonic acid and continue stirring at 80°C for 4h, stop heating, stand still Set aside to cool, wash the oil phase with water until neutral, and distill under reduced pressure to obtain a colorless and transparent vinyl-containing polysiloxane.

[0037] (2) The synthetic method step of hydrogen-containing polysiloxane in the B component is as follows:

[0038] Add 50g of phenyltrimethoxysilane, 25g of diphenyldimethoxysilane, 10g of tetramethyldihydrogendisiloxane, 0.5g of silane coupling agent KH-560 to a 250ml round bottom flask, Mix well, add 8....

Embodiment 2

[0046] (1) The synthetic method step of vinyl-containing polysiloxane in A component is as follows:

[0047] Add 20g of phenyltrimethoxysilane, 60g of diphenyldimethoxysilane, 20g of tetramethyldivinyl disiloxane, 2g of silane coupling agent KH-570 to a 250ml round bottom flask, Mix well, add 5.1g ethanol as solvent, then add 0.5g tetrabutylammonium hydroxide, heat and stir at 120°C for 2h, stop heating, add 0.1g trifluoromethanesulfonic acid and continue stirring at 120°C for 4h, stop heating, Set aside to cool, wash the oil phase with water until neutral, and distill under reduced pressure to obtain a colorless and transparent vinyl-containing polysiloxane.

[0048] (2) The synthetic method step of hydrogen-containing polysiloxane in the B component is as follows:

[0049]Add 10g of phenyltrimethoxysilane, 40g of diphenyldimethoxysilane, 10g of tetramethyldihydrogendisiloxane, and 0.5g of KH-560 to a 250ml round-bottomed flask, mix well, and add 3g ethanol as solvent, then...

Embodiment 3

[0057] (1) The synthetic method step of vinyl-containing polysiloxane in A component is as follows:

[0058] Add 30g of phenyltrimethoxysilane, 60g of diphenyldimethoxysilane, 20g of tetramethyldivinyl disiloxane, 5g of silane coupling agent KH-570 to a 250ml round bottom flask, Mix well, add 8g ethanol as solvent, then add 0.5g tetrabutylammonium hydroxide, heat and stir at 100°C for 2h, stop heating, add 0.1g trifluoromethanesulfonic acid, continue stirring at 100°C for 4h, stop heating, let stand After cooling, the oil phase was washed with water until neutral, and distilled under reduced pressure to obtain a colorless and transparent vinyl-containing polysiloxane.

[0059] (2) The synthetic method step of hydrogen-containing polysiloxane in the B component is as follows:

[0060] Add 100g of phenyltrimethoxysilane, 15g of diphenyldimethoxysilane, 18g of tetramethyldihydrogendisiloxane, and 0.9g of KH-560 to a 250ml round-bottomed flask, mix well, and add 9g ethanol as so...

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Abstract

The invention relates to a phenyl-series high-refractive-index LED loading glue and a preparation method thereof. The phenyl-series high-refractive-index LED loading glue is characterized by being prepared by mixing an A composition and a B composition according to the mass ratio of 1:1-10, wherein the A composition is prepared by mixing vinyl-containing polysiloxane and a catalyst according to the mass ratio of 30-60:1, and the B composition is prepared by mixing hydrogen-containing polysiloxane and an inhibitor according to the mass ratio of 30-60:0.5. The invention discloses the synthetic technology for a power-type LED packaging organic silicon material. The obtained LED packaging glue has relatively high refractive index, light transmittance, extensibility, tensile strength and bonding intensity, and is capable of improving the luminescent efficiency of LED as well as prolonging the service life of LED.

Description

technical field [0001] The invention relates to a phenyl-based high-refractive-index LED filling glue and a preparation method thereof, in particular to a synthesis method of an organic silicon material for high-refractive-index LED packaging. technical background [0002] Ultra-high-brightness light-emitting diodes (LEDs) are a type of electroluminescent solid-state light source. Due to the advantages of simple structure, long service life, small size, high brightness, energy saving and environmental protection, etc., the development is very rapid, and it is expected to replace traditional light sources such as incandescent lamps and fluorescent lamps and become the fourth generation of lighting sources. With the increase of the power used, the change of the use environment and the extension of the service life, the requirements for the resin used for LED potting are also further increased. [0003] At present, the resin materials used for LED potting are mostly traditiona...

Claims

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Application Information

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IPC IPC(8): C09J11/06C09J183/07C09J183/05C08G77/12C08G77/20H01L33/56C08G77/14
Inventor 暴峰韩小兵高洁蔡浩浩马睿
Owner HUAZHONG NORMAL UNIV
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