Anti-oxidation LED packaging material with fluorescent function and preparation method thereof

An LED packaging and anti-oxidation technology, applied in the field of LED packaging materials and their preparation, can solve the problems of no fluorescent function and lack of anti-cracking performance, avoiding direct contact, improving service life and comprehensive quality, and good heat resistance. Effect

Inactive Publication Date: 2017-04-19
安徽中威光电材料有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Liu Jinlong used vinyl silicone oil and hydrogen-containing silicone oil cross-linking agents to prepare silicone materials for LED packaging in his master's thesis "Preparation and Performance Research of Silicone Materials for LED Packaging", but there are still lack of anti-cracking properties, no Fluorescent function and other issues

Method used

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Embodiment

[0017] An oxidation-resistant LED packaging material with fluorescent function is characterized in that it is made of the following raw materials in parts by weight:

[0018] Chloroform antioxidant 4, vinyl silicone oil 40, maleic anhydride 2, vinyl MQ resin 11, xylene 20, citric acid 8, ethylenediamine 5, copper bromide 2, deionized water 10, silicon micropowder 10, silane Coupling agent KH550 11, hydrogen-containing silicone oil crosslinking agent 35, chloroplatinic acid isopropanol 3.

[0019] The described anti-oxidation, LED encapsulation material with fluorescent function and its preparation method is characterized in that it is made by the following steps:

[0020] a. Put vinyl silicone oil into a container equipped with a stirrer and a thermocouple, and raise the temperature to 80-120°C; dissolve vinyl MQ resin in xylene solution, stir until dissolved, and slowly add it dropwise to the above vinyl silicone oil After the dripping, continue to stir at constant temperatu...

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PUM

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Abstract

The invention discloses an anti-oxidation LED packaging material with a fluorescent function and a preparation method thereof. The anti-oxidation LED packaging material is characterized by being prepared from the following raw materials in parts by weight: 2-4 parts of a chloroform antioxidant, 30-40 parts of vinyl silicone oil, 1-2 parts of maleic anhydride, 6-11 parts of vinyl MQ resin, 10-20 parts of dimethyl benzene, 4-8 parts of citric acid, 4-5 parts of ethylene diamine, 1-2 parts of copper bromide, 5-10 parts of deionized water, 5-10 parts of silica micro powder, 6-11 parts of a silane coupling agent KH550, 25-35 parts of a hydrogen-containing silicone oil crosslinking agent, and 2-3 parts of isopropanol platinichloride. According to the preparation method disclosed by the invention, a carbon dot fluorescent material is used for soaking the silica micro powder, then the silica micro powder is introduced into a silica gel material for packaging, and the obtained silica gel material has a fluorescent function and is good in anti-cracking performance; and by adding the chloroform antioxidant and the like, the oxidation resistance of the material is improved.

Description

technical field [0001] The invention relates to an LED encapsulation material, in particular to an anti-oxidation and fluorescent LED encapsulation material and a preparation method thereof. Background technique [0002] Silicone materials for LED packaging are usually based on vinyl silicone resin or vinyl silicone oil, and low-viscosity hydrogen-containing silicone oil is used as a crosslinking agent. Obtained by cross-linking and curing. With the advancement of LED packaging technology, especially the development of high-power white LEDs, silicone-based packaging materials are increasingly showing their advantages. Silicone materials for LED packaging are different from ordinary silicone materials. In addition to having good mechanical properties, they must also maintain excellent heat resistance and high transparency. The preparation of silicone packaging materials mostly adopts a two-component addition formula system, which is formed by thermal curing in the presence ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K13/06C08K5/02C08K5/1539C08K5/092C08K5/17C08K9/06C08K3/36
CPCC08L83/04C08L2201/08C08L2203/206C08L2205/025C08L2205/03C08K13/06C08K5/02C08K5/1539C08K5/092C08K5/17C08K9/06C08K3/36
Inventor 胡枝丽姚志国叶勇
Owner 安徽中威光电材料有限公司
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