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Hydroxy acrylic resin and cured film

A technology of hydroxyacrylic acid and acrylic acid, which is applied in the field of acrylic resin, can solve the problems of poor hydrophobicity, insufficient fullness and hardness of hydroxyacrylic resin, and achieve good fullness, hardness and good hydrophobicity

Active Publication Date: 2020-06-19
东莞市贝杰化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the fullness and hardness of hydroxyacrylic resin are not enough, and the hydrophobicity is poor

Method used

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  • Hydroxy acrylic resin and cured film
  • Hydroxy acrylic resin and cured film
  • Hydroxy acrylic resin and cured film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In a four-neck flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amount of dimethyl sulfoxide, and stir to raise the temperature to 105°C. Mix methyl methacrylate, hydroxyethyl methacrylate, vinyltrimethoxysilane and benzoyl tert-butyl peroxide evenly, and then use the dropping funnel. Wherein the total mass of vinyl monomers is 100 wt%, and the mass of benzoyl tert-butyl peroxide is 0.2 wt%. Maintain the temperature of the flask at 105°C, turn on the switch of the dropping funnel and start to add dropwise to the flask, after 2 hours, stop heating after constant temperature for a certain period of time, to ensure the total reaction time (that is, between the time of dropping liquid and the time of constant temperature reaction) and) for 3h, to obtain acrylic acid prepolymer.

[0066] In a four-neck flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amo...

Embodiment 2

[0069] In a four-necked flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amount of dimethyl sulfoxide, and stir to raise the temperature to 125°C. Mix methyl methacrylate, hydroxyethyl methacrylate, vinyltrimethoxysilane and benzoyl tert-butyl peroxide evenly, and then use the dropping funnel. Wherein the total mass of the vinyl monomer is 100 wt%, and the mass of benzoyl tert-butyl peroxide is 0.6 wt%. Maintain the temperature of the flask at 125°C, turn on the switch of the dropping funnel and start adding drops to the flask, after 2 hours, stop heating after a certain period of constant temperature to ensure the total reaction time (that is, between the time of dropping liquid and the time of constant temperature reaction) and) for 8h, to obtain acrylic acid prepolymer.

[0070] In a four-necked flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amount of...

Embodiment 3

[0073] In a four-neck flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amount of dimethyl sulfoxide, and stir to raise the temperature to 120°C. Mix methyl methacrylate, hydroxyethyl methacrylate, vinyltrimethoxysilane and benzoyl tert-butyl peroxide evenly, and then use the dropping funnel. Wherein the total mass of vinyl monomers is 100 wt%, and the mass of benzoyl tert-butyl peroxide is 0.2 wt%. Maintain the temperature of the flask at 125°C, turn on the switch of the dropping funnel and start adding drops to the flask, after 2 hours, stop heating after a certain period of constant temperature to ensure the total reaction time (that is, between the time of dropping liquid and the time of constant temperature reaction) and) for 5h, to obtain acrylic acid prepolymer.

[0074] In a four-neck flask equipped with a stirrer, a thermometer, a condensing reflux device and a dropping funnel, add a certain amount of toluen...

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Abstract

The invention discloses a hydroxy acrylic resin and a cured film. A molecular structure of the hydroxy acrylic resin comprises (A) a repeating unit derived from a monomer represented by a formula I, wherein the structural formula is as shown in the specification; in the formula I, m, n, a, b and c are positive integers of not less than 3; (B) a repeating unit derived from a monomer represented by a formula II, wherein the structural formula is as shown in the specification; in the formula II, R1 is H or methyl; and R2 is C1-4 alkyl, ethoxy or N,N-diethylamine ethyl and ethyl; and (C) a repeating unit derived from a monomer with an ethylene group, a silicon atom and at least two alkoxy groups connected with the silicon atom. According to the hydroxy acrylic resin disclosed by the invention, the molecular structure of the hydroxy acrylic resin comprises a silicon-oxygen block and a polyether block, so that the resin has excellent hydrophobic property and high fullness and hardness.

Description

technical field [0001] The present invention relates to the technical field of acrylic resins, in particular, to hydroxyl acrylic resins and cured films. Background technique [0002] In the prior art, the fullness and hardness of the hydroxyacrylic resin are not enough, and the hydrophobicity is poor. Contents of the invention [0003] In view of this, one aspect of the present invention is to provide a hydroxyacrylic resin, which has better fullness and hardness, and better hydrophobicity. [0004] A kind of hydroxy acrylic resin, comprises in its molecular structure: [0005] (A) Repeating units derived from monomers represented by formula I: [0006] [0007] In formula I, m, n, a, b, c are all positive integers not less than 3; [0008] (B) Repeating units derived from monomers represented by formula II: [0009] [0010] In formula II, R 1 is H or methyl, R 2 for C 1～4 Alkane group, hydroxyethyl group or N,N-diethylamine ethyl group, ethyl group; [001...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/02C08F220/14C08F220/28C08F230/08C08G81/00C08L87/00C08J5/18
CPCC08F220/14C08G81/00C08G81/025C08J5/18C08J2387/00C08L87/00C08L2203/16C08F220/281C08F230/08
Inventor 徐战昌
Owner 东莞市贝杰化工有限公司