Preparation method of silicone resin type organic/inorganic hybrid material for packaging

A technology of hybrid material and silicone resin, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of long reaction time, easy gelation, low light transmittance of products, etc., and achieve short reaction time and high light transmittance Effect

Active Publication Date: 2012-03-28
河北厚丰有机硅制品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the nanocomposite is carried out directly, the nanoparticles are easy to agglomerate, and the light transmittance of the resulting product is low, which is difficult to meet the needs of LED packaging; ZnO and TiO ar...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) To a 1L three-neck flask filled with 46ml xylene and 360ml water, add 50ml PhSiCl dropwise within 2 hours under stirring at 40°C 3 , 22ml MeViSiCl 2 , 18ml Me 2 SiCl 2 , 11ml TiCl 4 , Mixed solution of 88ml xylene, continue to stir for 1h. Stand still, separate layers, and remove the acid solution in the lower layer. Wash with deionized water at 40°C~50°C until neutral.

[0027] 2) Take 50g of the obtained prepolymer solution, add 50g of solvent for xylene, 0.15g of KOH, reflux in a 250ml three-necked flask at 100°C for 5h, cool, and add 1.5g of end-capping agent MeSiCl 3 , stirred for 1 h, washed with deionized water until neutral. Concentrate at 0.8~0.96MPa, and remove the remaining xylene and water generated by polycondensation reaction to obtain clear and transparent silicone resin.

[0028] 3) Mix the obtained vinyl silicone resin with dimethylhydrogen silicone oil containing 0.7wt% hydrogen according to Si-H:Si-Vi=1.5:1, platinum complex catalyst H 2 Pt...

Embodiment 2

[0030] 1) To a 1L three-neck flask filled with 46ml of toluene and 360ml of water, add 50ml of PhSiCl dropwise within 2h under stirring at 60°C 3 , 22ml MeViSiCl 2 , 18ml Me 2 SiCl 2 , 9ml of zinc isooctanoate, 88ml of toluene mixed solution, continue to stir for 1h. Stand still, separate layers, and remove the acid solution in the lower layer. Wash with deionized water at 40°C~50°C until neutral.

[0031] 2) Take 50g of the obtained prepolymer solution, add 50g of toluene, 0.15g of tetrabutylammonium hydroxide, reflux in a 250ml three-necked flask at 100°C for 5h, cool, and add 4.5g of capping agent α,ω-dimethylphenylsilane Vinyl silicone oil, stirred for 1 h, washed with deionized water until neutral. Concentrate at 0.8~0.96MPa, and remove the remaining toluene and the water generated by the polycondensation reaction to obtain a clear and transparent silicone resin.

[0032] 3) Mix the obtained vinyl silicone resin with methylphenyl hydrogen-containing silicone oil wit...

Embodiment 3

[0034] 1) To a 1L three-neck flask filled with 46ml of toluene and 360ml of water, add 50ml of PhSiCl dropwise within 2h under stirring at 60°C 3 , 22ml MeViSiCl 2 , 18ml Me 2 SiCl 2 , 9ml MePhSiCl 2 , 15ml of zirconium isooctanoate, 88ml of toluene mixed solution, continue to stir for 1h. Stand still, separate layers, and remove the acid solution in the lower layer. Wash with deionized water at 40°C~50°C until neutral.

[0035] 2) Take 50g of the obtained prepolymer solution, add 50g of toluene and 0.15g of KOH, reflux in a 250ml three-necked flask at 100°C for 5h, cool, add 6.0g of decamethyltetrasiloxane as an end-capping agent, stir for 1h, deionized water Wash to neutral. Concentrate at 0.8~0.96MPa, and remove the remaining toluene and the water generated by the polycondensation reaction to obtain a clear and transparent silicone resin.

[0036] 3) Mix the obtained vinyl silicone resin with methylphenyl hydrogen-containing silicone oil with a hydrogen content of 0....

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PUM

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Abstract

The invention relates to a preparation method of a silicone resin type organic/inorganic hybrid material for packaging. The invention aims to overcome the defects in the prior art, and provides a preparation method of a high-refractive-index high-light-transmittance silicone resin type organic/inorganic hybrid material for packaging. The method comprises the following steps: 1) cohydrolysis reaction; 2) prepolymer polycondensation reaction; and 3) packaging material preparation and vulcanization.

Description

technical field [0001] The invention relates to a high refractive index and transparent methylphenyl vinyl silicone resin LED packaging material mainly containing methylphenylsiloxane chain links, in particular to a method for preparing a silicone resin-type organic-inorganic hybrid material for LED packaging. Background technique [0002] Power-type light-emitting diodes (Light Emitting Diode, LED) have the advantages of energy saving, environmental protection, safety, long life, low energy consumption, etc. After decades of development, they are widely used in large-area graphic display full-color screens, status indications, signs Lighting, signal display, backlight of liquid crystal display, automotive combination taillights and interior lighting, etc., are expected to become the fourth generation of light sources after incandescent lamps, fluorescent lamps, and high-intensity gas discharge lamps. [0003] Encapsulation materials that are resistant to thermal shock, non...

Claims

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Application Information

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IPC IPC(8): C08J3/24C08L83/07C08L83/05C08G77/20H01L33/56
Inventor 来国桥杨雄发曹建邵倩杨琳琳华西林蒋剑雄罗蒙贤
Owner 河北厚丰有机硅制品股份有限公司
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