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Fluorine-modified organic silicon material as well as preparation method and application thereof

A technology of fluorine-modified silicone and fluorine materials, used in adhesive additives, non-polymer adhesive additives, polymer adhesive additives, etc. Expensive and other issues, to achieve high moisture resistance, good thermal shock resistance, and improve quality

Active Publication Date: 2020-05-01
北京科化新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a big gap between domestic research on high-temperature-resistant LED packaging materials and foreign countries, which cannot meet the requirements of packaging companies, so they can only rely on imports, but imported LED packaging materials are expensive. Therefore, for high-performance packaging materials research and development becomes necessary

Method used

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  • Fluorine-modified organic silicon material as well as preparation method and application thereof
  • Fluorine-modified organic silicon material as well as preparation method and application thereof
  • Fluorine-modified organic silicon material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example 1

[0060] This preparation example is used to illustrate the fluorine material-modified silicone resin provided by the present invention and its preparation process.

[0061] Add 1 mol of organic silicon shown in formula (3-1), 3 mol of organic silicon shown in formula (4-1), 4 mol of organic silicon shown in formula (5-1) and 1 mol of formula (6-1) in the three-necked flask ), mixed evenly, then added dropwise 0.03L of HCl solution with a concentration of 1% by weight at 10°C, and the dropwise addition was completed within 1h; then the reaction temperature was raised to 40°C and reacted at this temperature for 4h ;Raise the reaction temperature to 90°C for fractional distillation, and distill out the generated by-products. When the temperature of the distillation head reaches 80°C, stop the reaction and lower the temperature; then add 4.5g of ammonia water and 200ml of toluene, mix well, and start to heat up to 110°C , when the temperature of the distillation head reaches 86°C, ...

preparation example 2

[0064] This preparation example is used to illustrate the fluorine material-modified silicone resin provided by the present invention and its preparation process.

[0065] According to the process of Preparation Example 1, the difference is that the organosilicon added is 6 mol of organosilicon represented by formula (3-1), 7 mol of organosilicon represented by formula (4-1), and 4 mol of organosilicon represented by formula (5-1). The organosilicon shown in the formula (6-1) and 4 mol of the organosilicon shown in formula (6-1), other preparation conditions were kept consistent with the preparation example 1, finally obtained the silicone resin A2 modified by fluorine material.

preparation example 3

[0067] This preparation example is used to illustrate the fluorine material-modified silicone resin provided by the present invention and its preparation process.

[0068] According to the process of Preparation Example 1, the difference is that the organosilicon added is 5 mol of organosilicon represented by formula (3-1), 4 mol of organosilicon represented by formula (4-1), and 1 mol of organosilicon represented by formula (5-1). Organosilicon shown in 2mol formula (6-1), 4.5g of ammonia water is replaced by 7g of sodium bicarbonate solution, other preparation conditions are consistent with Preparation Example 1, and finally the organosilicon modified by fluorine material is obtained Resin A3.

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PUM

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Abstract

The invention relates to the field of LED packaging, and discloses a fluorine-modified organic silicon material and a preparation method and application thereof. The fluorine-modified organic siliconmaterial is prepared by mixing, crosslinking and curing a composition containing at least one fluorine material-modified organic silicon resin, hydrogen-containing silicone oil, a tackifier, a catalyst and an inhibitor. The fluorine-modified organic silicon material is used as an LED packaging adhesive and has proper hardness, high-temperature yellowing resistance, high vulcanization resistance, high-temperature lightening performance, high moisture resistance and good cold and hot impact resistance.

Description

technical field [0001] The invention relates to the field of LED packaging, in particular to a fluorine-modified organic silicon material, a preparation method and application thereof. Background technique [0002] Silicone materials have excellent high temperature resistance and low temperature resistance. At high temperatures, they have superior physical and mechanical properties, aging resistance and good hydrophobic properties. Their low temperature resistance plays an important role in low surface energy materials. [0003] Fluorine-containing materials have the characteristics of high heat resistance, chemical corrosion resistance, low surface energy, etc., and are difficult to be damaged by light, heat and other chemical factors. [0004] Silicone and organic fluorine series materials are widely used in many fields such as electronics, aerospace, automobiles, and textiles because of their excellent performance. [0005] With the increasing demand for the brightness o...

Claims

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Application Information

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IPC IPC(8): C08G77/24C08G77/12C08L83/08C08L83/05C08K3/36C08J3/24C09J183/08C09J11/04C09J11/06C09J11/08
CPCC08G77/24C08G77/12C08J3/246C09J183/08C09J11/04C09J11/06C09J11/08C08J2383/08C08J2483/08C08J2483/04C08K3/36C08G77/80C08L2205/025C08L2205/03C08L83/08C08L83/04
Inventor 张琛王锐王聪李海亮卢绪奎
Owner 北京科化新材料科技有限公司