Inhibitor for LED packaging silica gel as well as preparation method and application of inhibitor

A technology of phenylsilicon and regulator, applied in the directions of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems affecting the light transmittance and compatibility of the silica gel system, and achieve the effect of improving the refractive index

Active Publication Date: 2020-08-25
GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to overcome the problem in the prior art that the inhibitor affects the light transmittance and compatibility of the silica gel system, and to provide a acetylenic alcohol compound containing a phenylsiloxane chain, which can be used as an LED encapsulation silica gel inhibitor. Simultaneously improve the compatibility of the inhibitor and silica gel and the light transmission of the silica gel system

Method used

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  • Inhibitor for LED packaging silica gel as well as preparation method and application of inhibitor
  • Inhibitor for LED packaging silica gel as well as preparation method and application of inhibitor
  • Inhibitor for LED packaging silica gel as well as preparation method and application of inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] S1. Preparation of Intermediates

[0047] 20.72g 2.58g of methyl acrylate and 0.012g of platinum diacetoacetate were reacted at 50°C for 3h to obtain the following intermediate:

[0048]

[0049] S2. Preparation of acetylenic alcohol compounds containing phenylsiloxane chains

[0050]Mix the intermediate obtained in step S1, 2.52g methyl butynol, 0.13g concentrated sulfuric acid and 12.60g toluene, react at 60°C for 6h, add sodium bicarbonate to adjust the pH of the system to 7, filter, and heat the filtrate to 140 °C, the solvent was removed in vacuo to obtain the following compound with a refractive index of 1.445.

[0051]

Embodiment 2

[0053] S1. Preparation of Intermediates

[0054] 38.02g 2.58g of methyl acrylate and 0.02g of platinum diacetoacetate were reacted at 60°C for 1 hour to obtain the following intermediate:

[0055]

[0056] S2. Preparation of acetylenic alcohol compounds containing phenylsiloxane chains

[0057] Mix the intermediate obtained in step S1, 2.52g methyl butynol, 1.27g concentrated sulfuric acid and 43.40g toluene, react at 80°C for 3h, add sodium bicarbonate to adjust the pH of the system to 7, filter, and heat the filtrate to 150 °C, the solvent was removed in vacuo to obtain the following compound with a refractive index of 1.517.

[0058]

Embodiment 3

[0060] S1. Preparation of Intermediates

[0061] 30.62g 3.00g of ethyl acrylate and 0.017g of platinum diacetoacetate were reacted at 60°C for 1 hour to obtain the following intermediate:

[0062]

[0063] S2. Preparation of acetylenic alcohol compounds containing phenylsiloxane chains

[0064] Mix the intermediate obtained in step S1, 2.52g methyl butynol, 0.53g concentrated sulfuric acid and 35.00g toluene, react at 80°C for 3h, add sodium bicarbonate to adjust the pH of the system to 7, filter, and heat the filtrate to 150 °C, the solvent was removed in vacuo to obtain the following compound with a refractive index of 1.501.

[0065]

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Abstract

The invention discloses an alkynol compound containing a phenyl silicon-oxygen chain as well as a preparation method and application of the alkynol compound. The alkynol compound containing the phenylsilicon-oxygen chain has a structural formula shown in the descriptions of the invention. In the formula, a ranges from 5 to 20, b ranges from 0 to 10, c ranges from 3 to 6, and R1 is methyl or phenyl. Phenyl hydrogen-containing silicone oil, acrylic ester and methyl butynol are used as main raw materials and react with one another under the action of a catalyst to prepare the alkynol compound. According to the compound, the phenyl-containing silicon-oxygen chain segment is introduced into the methyl butynol structure; phenyl can improve the refraction coefficient of the compound, the silicon-oxygen chain segment can improve the compatibility of the compound with silica gel; and phenyl hydrogen-containing silicone oil with different phenyl contents and different silicon-oxygen chain lengths can be selected to adjust the refraction coefficient of the obtained compound and the compatibility with silica gel.

Description

technical field [0001] The invention relates to the field of chemical synthesis, in particular to an inhibitor for LED packaging silica gel and its preparation method and application. Background technique [0002] LED (LIGHT EMITTING DIODE) has the advantages of energy saving, environmental protection, long service life and high light efficiency. It is called a green light source and has been widely used in lighting, billboards, outdoor display screens, backlights and other fields. [0003] At present, the materials used for LED packaging mainly include epoxy resin and silicone. Silicone encapsulant can be divided into two types according to the application, low refractive index and high refractive index. In some special applications, there will be products with medium refractive index between the two. Due to the large difference between the refractive index of the low-refractive index silicone encapsulant and the chip’s refractive index, part of the light is totally reflec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/38C08G77/12C09J183/04C09J11/08
CPCC08G77/12C08G77/38C08L2203/206C08L2205/02C09J11/08C09J183/04C08L83/06
Inventor 陆文灿黄德裕黄振宏
Owner GUANGDONG BIOMAX SIANDF NEW MATERIAL CO LTD
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