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A kind of organosilicon adhesion promoter containing boron and epoxy group with high refractive index and its preparation method and application

A technology of silicone tackifier and epoxy group, applied in the directions of polymer adhesive additives, adhesives, adhesive additives, etc., can solve problems such as weak adhesion, achieve good compatibility and simple preparation process , Solve the effect of weak adhesion

Active Publication Date: 2021-06-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of weak adhesion of addition type silicone rubber to polyphthalamide (PPA) and metal copper plate in the prior art, the primary purpose of the present invention is to provide a kind of high refractive index boron-containing and epoxy group The preparation method of silicone tackifier

Method used

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  • A kind of organosilicon adhesion promoter containing boron and epoxy group with high refractive index and its preparation method and application
  • A kind of organosilicon adhesion promoter containing boron and epoxy group with high refractive index and its preparation method and application
  • A kind of organosilicon adhesion promoter containing boron and epoxy group with high refractive index and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Take 1.82g of methylphenyldimethoxysilane, 13.22g of vinylmethyldimethoxysilane and 39.74g of γ-glycidyl etheroxypropylmethyldiethoxysilane and join it in a tank equipped with magnetic stirring and temperature control. Dissolve 9.27g of boric acid solid powder in 50ml of methanol, then add it into the above-mentioned three-necked flask through a constant pressure dropping funnel, and adjust the piston of the constant pressure funnel to make it drop within 2h. The reaction temperature was increased to 75° C., and a basic anion exchange resin accounting for 1% by mass fraction of the total reactants was added and reacted at a constant temperature for 5 hours. After the reaction, filter the product under reduced pressure to remove the basic anion exchange resin, then transfer the filtrate to a round-bottomed distillation flask, and remove by-products in the system at 100°C / -0.096MPa to obtain a light orange Transparent, high refractive index silicone adhesion promoter cont...

Embodiment 2

[0043]Take 1.82g of methylphenyldimethoxysilane, 13.22g of vinylmethyldimethoxysilane and 39.74g of γ-glycidyl etheroxypropylmethyldiethoxysilane and join it in a tank equipped with magnetic stirring and temperature control. Dissolve 9.27g of boric acid solid powder in 50ml of methanol in a 150ml three-necked flask of a device, and then add it into the above-mentioned three-necked flask through a constant pressure dropping funnel, and adjust the piston of the constant pressure funnel to make it drop within 2h. The reaction temperature was raised to 65° C., and a basic anion exchange resin accounting for 1% by mass fraction of the total reactants was added and reacted at a constant temperature for 7 hours. After the reaction, filter the product under reduced pressure to remove the basic anion exchange resin, then transfer the filtrate to a round-bottomed distillation flask, and remove by-products in the system at 100°C / -0.096MPa to obtain a light orange Transparent, high refrac...

Embodiment 3

[0045] Take 1.82g of methylphenyldimethoxysilane, 13.22g of vinylmethyldimethoxysilane and 39.74g of γ-glycidyl etheroxypropylmethyldiethoxysilane and join it in a tank equipped with magnetic stirring and temperature control. Dissolve 9.27g of boric acid solid powder in 50ml of methanol in a 150ml three-necked flask of a device, and then add it into the above-mentioned three-necked flask through a constant pressure dropping funnel, and adjust the piston of the constant pressure funnel to make it drop within 2h. The reaction temperature was increased to 85° C., and a basic anion exchange resin accounting for 1% by mass fraction of the total reactants was added and reacted at a constant temperature for 4 hours. After the reaction, filter the product under reduced pressure to remove the basic anion exchange resin, then transfer the filtrate to a round-bottomed distillation flask, and remove by-products in the system at 100°C / -0.096MPa to obtain a light orange Transparent, high re...

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Abstract

The invention discloses a high-refractive-index boron- and epoxy-group-containing organosilicon tackifier, a preparation method and application thereof. The method is: mix boric acid, vinylmethyldialkoxysilane, γ-glycidyl etheroxypropylmethyldialkoxysilane, phenylmethyldialkoxysilane and organic solvent evenly, add Basic catalyst, react at 65-95°C for 4-7 hours, finish the reaction, purify, and obtain a boron- and epoxy-group-containing organosilicon tackifier with high refractive index. The high-refractive-index organosilicon tackifier prepared by the invention is a light orange transparent viscous liquid with low viscosity and is easy to use. The preparation process of the invention is simple in operation, good in repeatability and controllability, can adjust the refractive index of the product, and can significantly improve the bonding performance of silicone rubber to polyphthalamide and copper plate.

Description

technical field [0001] The invention belongs to the field of silicone rubber additives, and in particular relates to a high-refractive-index silicone tackifier containing boron and epoxy groups, a preparation method and application thereof. Background technique [0002] With the development and progress of today's electronic technology, electronic components and integrated circuits are increasingly integrated, miniaturized and modularized, and the working environment is more harsh, which puts forward higher requirements for the stability of electronic devices. Electronic packaging technology can strengthen the integrity of electronic devices, prevent moisture, dust and harmful gases from eroding electronic components, improve the resistance of components to external shock and vibration, and stabilize component parameters. Therefore, the performance of packaging materials determines the service life of electronic components to a certain extent. Epoxy resin, polyurethane and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/22C08G77/20C08G77/14C09J183/07C09J183/05C09J11/08
CPCC08G77/14C08G77/20C08G77/22C08L2205/025C08L2205/03C09J11/08C09J183/04C08L83/04C08L83/08
Inventor 潘朝群黄丙生
Owner SOUTH CHINA UNIV OF TECH
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