High-refractive-index organic silicon tackifier containing boron and epoxy groups, and preparation method and application thereof

A silicone tackifier, epoxy group technology, applied in the direction of polymer adhesive additives, adhesives, adhesive additives, etc., can solve problems such as weak adhesion, achieve good compatibility and mild reaction conditions , the effect of easy collection

Active Publication Date: 2020-06-02
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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  • High-refractive-index organic silicon tackifier containing boron and epoxy groups, and preparation method and application thereof
  • High-refractive-index organic silicon tackifier containing boron and epoxy groups, and preparation method and application thereof
  • High-refractive-index organic silicon tackifier containing boron and epoxy groups, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
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 organic silicon tackifier containing boron and epoxy groups, and a preparation method and an application thereof. The method comprises the following steps: uniformly mixing boric acid, vinylmethyldialkoxy silane, gamma-glycidoxypropylmethyldialkoxy silane, phenylmethyldialkoxy silane and an organic solvent, adding a basic catalyst, reacting at 65-95DEG C for 4-7 h, ending the reaction, and purifying to obtain the high-refractive-index organic silicon tackifier containing boron and epoxy groups. The high-refractive-index organic silicon tackifierprepared by the invention is a light orange transparent viscous liquid, and is low in viscosity and easy to use. The preparation method is simple to operate and good in repeatability and controllability, the refractive index of the product can be adjusted, and the tackifying performance of the silicone rubber on polyphthalamide and a copper plate can be remarkably improved.

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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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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