UV light-cured organic silicon polyurethane acrylate monomer and preparation method thereof

A polyurethane acrylate and silicone technology, applied in the field of UV curing silicone monomer and its synthesis, can solve the problems of easy hydrolysis, unstable Si-O-C bond, etc., and achieve the effect of convenient adjustment

Inactive Publication Date: 2019-01-25
YANTAI DEBANG ADVANCED SILICON MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The silicone acrylate monomer synthesized by the Si-O-C bond is constructed by the condensation reaction of chlorosilane and hydroxyalkyl acrylate. This method has been commer

Method used

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  • UV light-cured organic silicon polyurethane acrylate monomer and preparation method thereof
  • UV light-cured organic silicon polyurethane acrylate monomer and preparation method thereof
  • UV light-cured organic silicon polyurethane acrylate monomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Add 50 g of hydroxyhydrocarbyl di-blocked polydimethylsiloxane with a degree of polymerization of 30, 100 g of n-heptane, 0.02 g of dibutyltin dilaurate, and 0.02 g of polymerization inhibitor BHT into a three-necked flask, and stir magnetically for half a day in an ice-water bath. After 1 hour, 9g of isocyanate ethyl methacrylate was added dropwise to the reaction solution, and the temperature was raised to 50°C for 4 hours. After the reaction, 3g of activated carbon was added, and magnetically stirred overnight. After filtration, rotary steaming, 55.96g of the product was obtained, and the product was protected from light. save.

Embodiment 2

[0037] Add 50 g of hydroxyhydrocarbyl di-blocked polydimethylsiloxane with a degree of polymerization of 40, 100 g of n-heptane, 0.02 g of dibutyltin dilaurate, and 0.02 g of polymerization inhibitor BHT into a three-necked flask, and stir magnetically for half a day in an ice-water bath. 6.5 g of isocyanate ethyl methacrylate was added dropwise to the reaction solution, and the temperature was raised at 40° C. for 5 hours of heat preservation reaction; light save.

Embodiment 3

[0039] Add 50 g of hydroxyhydrocarbyl di-blocked polydimethylsiloxane with a degree of polymerization of 30, 100 g of n-heptane, 0.02 g of dibutyltin dilaurate, and 0.02 g of polymerization inhibitor BHT into a three-necked flask, and stir magnetically for half a day in an ice-water bath. After 1 hour, 9g of ethyl isocyanate acrylate was added dropwise to the reaction solution, and the temperature was raised to 50°C for 6 hours of heat preservation reaction; after the reaction was completed, 4g of activated carbon was added, magnetically stirred overnight, filtered, and rotary evaporated to obtain 57.06g of the product, which was stored in the dark.

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Abstract

The invention relates to a UV light-cured organic silicon polyurethane acrylate monomer and a preparation method thereof. The preparation method comprises the following steps: dissolving a certain amount of hydroxyalkyl dual end-capped polydimethylsiloxane and an AOI-VN monomer into an organic solvent, adding a certain amount of polymerization inhibitor, reacting under action of a catalyst for 4-6hours at a reaction temperature of 40-60 DEG C; after reaction is ended, adsorbing through active carbon, wherein dosage of the active carbon is 2-4% of mass of a mixture system; filtering and removing the solvent to obtain the organic silicon polyurethane acrylate monomer. The monomer prepared by the invention can be directly used as prepolymer, and further can be added into a resin or paint formula as an additive. After being light-cured, the product has performance such as water resistance and high temperature resistance of an organic silicon material.

Description

technical field [0001] The invention relates to a UV curing organic silicon monomer and a synthesis method thereof, belonging to the field of organic synthesis. technical background [0002] Light-curing silicone materials have excellent properties such as heat resistance, waterproof, and yellowing resistance of silicon materials, and light-curing technology has the advantages of low energy consumption, high efficiency, and low pollution. In recent years, photocurable silicone materials have developed rapidly and are mainly used in the fields of electronic packaging, surface treatment, and coatings. [0003] Generally speaking, silicone acrylate monomers can be prepared by constructing Si-O-C bonds and Si-C bonds. [0004] The silicone acrylate monomer synthesized by Si-O-C bond is constructed by the condensation reaction of chlorosilane and hydroxyalkyl acrylate. This method has been commercialized, but the Si-O-C bond is unstable and easy to hydrolyze. In addition, the c...

Claims

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Application Information

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IPC IPC(8): C08G77/388C08G18/71C08G18/61
CPCC08G77/388C08G18/61C08G18/702C08G18/711
Inventor 衣晓庆陈维
Owner YANTAI DEBANG ADVANCED SILICON MATERIALS
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