Preparation method of organic silicon material for LED encapsulation

An LED packaging and organic silicon technology, which is applied in the field of preparation of organic silicon materials for LED packaging, can solve the problems of low light extraction efficiency of chips, achieve excellent resistance to ultraviolet aging and thermal aging, high refractive index, and improve light transmittance. and the effect of hardness

Pending Publication Date: 2016-11-23
西安亚岱新能源科技有限公司
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Problems solved by technology

Therefore, for power LEDs to be more widely used, the key is to increase their luminous efficiency and luminous flux to the level of existing lighting sources, and the biggest obstacle for power LEDs to obtain high luminous flux is still the low light extraction efficiency of the chip.

Method used

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Examples

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Embodiment

[0011] Component A is synthesized by the following method: Vinyl silicon high polymer and polyphenylene phenylene ether oxide silicone oil containing olefin group are put into the reactor and stirred for 15 minutes, then a certain amount of distilled water is added dropwise, refluxed for 4 hours, and alcohol water is removed. Wash with deionized water until neutral, add KOH, wash with water to remove alkali, decolorize activated carbon, and finally remove low boilers in vacuum, add solid catalyst, mix well to obtain component A. The vinyl silicon polymer used includes vinyl silicone resin and vinyl-containing polysiloxane; the ratio of the number of Si-C to Si-O in the main chain structure of polyphenylene phenylene ether silicone oil containing olefin group 1:1;

[0012] Component B is synthesized by the following method: Put olefin-based hydrogen-based polyphenylene phenylene ether and vinyl hydrogen-based silicone resin into the reactor for stirring, slowly add a certain am...

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Abstract

The preparation method of organic silicon material for LED encapsulation comprises the following steps: component A is synthesized by the following method: vinyl silicon high polymer, polyphenylene phenylene ether oxide silicone oil containing olefin group is put into the reactor to stir, water is added dropwise, and refluxed for 4 hour, add KOH, wash with water to remove alkali, decolorize activated carbon, add solid catalyst, and mix evenly to obtain component A; Stir the reactor, add hydrogen-containing double head, add inhibitor and fluorescent powder, and mix evenly to obtain component B. The product obtained by the invention contains high phenyl content, so it has the characteristics of high refractive index, high transparency, excellent resistance to ultraviolet aging and thermal aging, and is an ideal packaging material for power LEDs.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a method for preparing organic silicon materials for LED packaging. Background technique [0002] In recent years, LED technology and market at home and abroad have developed rapidly. Among them, the luminous efficiency of LED has increased by 100 times, and the cost has dropped by 10 times. Backlight, car combination taillights and interior lighting, etc. [0003] Semiconductor LEDs are used as lighting sources, and the luminous flux of conventional products is far from that of general-purpose light sources such as incandescent lamps and fluorescent lamps. Therefore, for power LEDs to be more widely used, the key is to increase their luminous efficiency and luminous flux to the level of existing lighting sources, and the biggest obstacle for power LEDs to obtain high luminous flux is still the low light extraction efficiency of the chip. At present, the packaging technology of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05
Inventor 韩英
Owner 西安亚岱新能源科技有限公司
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