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High refractive index power type LED packaging organosilicon

A technology of LED packaging and power type, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., to achieve the effects of improving UV resistance, realizing continuous adjustability, and improving the refractive index

Inactive Publication Date: 2014-08-27
江苏矽时代材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, silicone packaging materials with a refractive index greater than 1.57 are rarely reported.

Method used

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  • High refractive index power type LED packaging organosilicon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First carry out the preparation of metal oxide-organic coordination composition:

[0034] S1. Add metal-organic complexes, lower organic alcohols and water for high-temperature aging in a hydrothermal reactor to obtain a white suspension, the metal being titanium; the lower organic alcohol being ethanol;

[0035] S2. centrifuging the suspension obtained in step S1 to obtain nano-oxide particles, and repeatedly washing with absolute ethanol three times;

[0036] S3. Put the nano-oxide particles and coupling agent obtained in step S2 into a three-necked flask in a weight ratio of 1:1~1:50, the coupling agent is vinyl, ultrasonic, then heated and stirred, and centrifuged to obtain modified nano oxide particles;

[0037] S4. Add acid to the modified nano-oxide particles obtained in step S3, and the acid is formic acid to obtain a metal oxide-organic coordination composition.

[0038] Next, prepare component A:

[0039] Add 100 parts of methylphenyl vi...

Embodiment 2

[0043] First carry out the preparation of metal oxide-organic coordination composition:

[0044] S1. Add metal-organic complexes, low-level organic alcohols and water to age in a hydrothermal reaction kettle at high temperature to obtain a white suspension. The metal is mainly zirconium; the low-level organic alcohol is propanol;

[0045] S2. centrifuging the suspension obtained in step S1 to obtain nano-oxide particles, and repeatedly washing with absolute ethanol three times;

[0046] S3. Put the nano-oxide particles obtained in step S2 and the coupling agent at a ratio of 1:1 to 1:20 into a three-necked flask. The coupling agent is methacryloyloxy, ultrasonic, then heated and stirred, and centrifuged to obtain modification Nano oxide particles;

[0047] S4. Add acid to the modified nano-oxide particles obtained in step S3, and the acid is acetic acid to obtain a metal oxide-organic coordination composition.

[0048] Next, prepare component A:

[0049]...

Embodiment 3

[0053] First, the preparation of the metal oxide-organic coordination composition

[0054] S1. Add metal-organic complexes, lower organic alcohols and water to age in a hydrothermal reaction kettle at high temperature to obtain a white suspension, and the metals are mainly one or more of titanium, zirconium or lanthanide rare earth elements; Described lower organic alcohol is Virahol and butanol;

[0055] S2. centrifuging the suspension obtained in step S1 to obtain nano-oxide particles, and repeatedly washing with absolute ethanol three times;

[0056] S3. Put the nano-oxide particles and coupling agent obtained in step S2 into a flask for reaction in a weight ratio of 1:1 to 1:10, and the coupling agent is an epoxy group and an amino group;

[0057] S4. Add acid to the flask in step S3, age, then ultrasonically and centrifuge the suspension to obtain a metal oxide-organic coordination composition, the acid is formic acid, acetic acid, propionic acid, hydrochlori...

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PUM

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Abstract

Belonging to the technical field of the adhesive preparation, the invention relates to a high refractive index and high light transmittance organosilicon material for power type LED packaging. The organosilicon material for LED packaging is prepared from component A and component B according to a weight ratio of 1:1-1:5. Specifically, the component A includes phenyl polysiloxane, phenyl silicon hydrogen bonded silicone oil, a catalytic inhibitor and a functional filler; and the component B includes phenyl polysiloxane, phenyl silicon hydrogen bonded silicone oil, and a platinum based catalyst. The LED packaging organosilicon material provided by the invention has light transmittance over 98% and a refractive index greater than 1.57, and also has the advantages of excellent ultraviolet aging resistance and heat aging resistance, good adhesive property and high strength, etc., thus being especially suitable for high power LED packaging.

Description

technical field [0001] The invention relates to the field of preparation of organosilicon polymer materials, and more specifically relates to a high-power high-refractive-index encapsulating silica gel used for encapsulating LED lamps and a preparation method thereof. Background technique [0002] With the increasing popularity of iconic LED lamps, the research and development and production of LED chip packaging materials have also attracted widespread attention from enterprises. In recent years, organosilicon materials with excellent physical and optical properties such as high light transmittance, good UV resistance, high and low temperature resistance, and high strength have gradually replaced the earlier widely used silicone materials that are prone to yellowing, poor high and low temperature resistance, and poor weather resistance. Oxygen resin encapsulation materials, this transformation basically meets the requirements of the iconic LED encapsulation. However, as th...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08L83/05C08K13/06C08K9/04C08K9/06C08K3/22H01L33/56
Inventor 熊明文董睿智
Owner 江苏矽时代材料科技有限公司
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