Epoxy modified water-soluble acrylic resin, and preparation method and application thereof

A water-soluble acrylic and epoxy modification technology, applied in coatings and other directions, can solve the problems of chemical resistance and poor adhesion, and achieve the effect of good gloss, excellent comprehensive performance and good chemical performance.

Active Publication Date: 2013-04-24
GUANGDONG YINYANG ENVIRONMENT FRIENDLY NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional water-soluble acrylic resin coatings have the advantages of high gloss and good weather resistance, but there are also some defects such as chemical resistance and poor adhesion

Method used

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  • Epoxy modified water-soluble acrylic resin, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of unsaturated double bond-terminated epoxy resin: In the reaction kettle, add 60 parts of E-44 epoxy resin and 13 parts of n-butanol in advance, heat to 70 °C and stir evenly, then heat up to 120 °C; In the cylinder, 0.3 parts of N,N-dimethylethanolamine; 15 parts of methacrylic acid; 10 parts of n-butanol, after stirring evenly, drop them into the reaction kettle within 1 hour, and continue to keep warm for 1 hour at 100°C , stop the reaction when the acid value of the system basically does not change, and cool down to room temperature, that is, the unsaturated double bond-terminated epoxy resin is prepared.

[0034] In another reactor, add 30 parts of diethylene glycol monobutyl ether; 1.2 parts of methyl methacrylate; 2.9 parts of butyl acrylate; 0.3 parts of methacrylic acid; 0.39 parts of hydroxyethyl acrylate; 0.1 parts of mercaptoethanol ; 0.2 parts of benzoyl peroxide, heated to 85 ° C for 15 minutes.

[0035]In the dripping tank, add 20 parts of d...

Embodiment 2

[0037] Preparation of unsaturated double bond-terminated epoxy resin: In the reaction kettle, add 65 parts of E-51 epoxy resin and 10 parts of diethylene glycol monobutyl ether in advance, heat to 65 °C and stir evenly, then heat up to 100 °C ; In the drop tank, 0.4 parts of tetrabutylammonium bromide; 10 parts of methacrylic acid; Continue the heat preservation reaction for 1.5 hours, stop the reaction when the acid value of the system does not change substantially, and cool down to room temperature to obtain an unsaturated double bond-terminated epoxy resin.

[0038] In the reactor, add 35 parts of diethylene glycol monobutyl ether in advance; 2 parts of methyl methacrylate; 3.9 parts of butyl acrylate; 0.5 parts of methacrylic acid; 0.45 parts of hydroxyethyl acrylate; 0.08 part of benzoyl oxide was heated to 85°C for 15 minutes to react.

[0039] In the dripping tank, add 15 parts of diethylene glycol monobutyl ether; 18 parts of methyl methacrylate; 14.1 parts of butyl a...

Embodiment 3

[0041] Preparation of unsaturated double bond-terminated epoxy resin: In the reaction kettle, add 70 parts of E-44 epoxy resin and 15 parts of propylene glycol monobutyl ether in advance, heat to 60 °C and stir evenly, then heat up to 110 °C; In the tank, add 0.5 parts of triethylamine; 12 parts of acrylic acid; 15 parts of propylene glycol monobutyl ether. After stirring evenly, drop them into the reaction kettle within 3 hours, and continue to keep warm for 2 hours at 120°C. When there is basically no change, the reaction is stopped and the temperature is lowered to room temperature to obtain an unsaturated double bond-terminated epoxy resin.

[0042] In the reactor, add 30 parts of diethylene glycol monobutyl ether in advance; 1.2 parts of methyl methacrylate; 2.9 parts of butyl acrylate; 0.3 parts of methacrylic acid; 0.27 parts of hydroxyethyl acrylate; 0.1 part of benzoyl oxide was heated up to 85°C for 15 minutes.

[0043] In the dripping tank, add 15 parts of diethyle...

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Abstract

The invention discloses an epoxy modified water-soluble acrylic resin, and a preparation method and application thereof. The preparation method of the epoxy modified water-soluble acrylic resin comprises the following steps: adding organic solvent, methyl methacrylate, butyl acrylate, methacrylic acid, 2-hydroxyethyl acrylate, chain-transfer agent and initiator into a reaction kettle, and heating to react; and adding organic solvent, methyl methacrylate, butyl acrylate, unsaturated double-bond terminated epoxy resin, methacrylic acid, 2-hydroxyethyl acrylate, chain-transfer agent and initiator into a dropwise addition tank, uniformly stirring, dropwisely adding into the reaction kettle, keeping the temperature, cooling, and adding an amine neutralizer for neutralization, thereby obtaining the epoxy modified water-soluble acrylic resin. The epoxy resin is introduced to the chain segment of the water-soluble acrylic resin by chemical modification, so that the epoxy modified water-soluble acrylic resin has better comprehensive properties, and better satisfies the requirements of customers.

Description

technical field [0001] The invention belongs to the field of surface coatings, in particular to an epoxy-modified water-soluble acrylic resin and its preparation method and application. Background technique [0002] As people pay more and more attention to environmental pollution and resource consumption, many manufacturers have stricter requirements on water-based industrial paints. Traditional water-soluble acrylic resin coatings have advantages such as high gloss and good weather resistance, but there are also some defects such as chemical resistance and poor adhesion. Therefore, the prior art still needs to be improved and developed. In order to further improve the performance of coatings, water-based acrylic resins are more modified by using other resins or monomers. Contents of the invention [0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an epoxy-modified water-soluble acrylic resin and its p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08F220/18C08F220/14C08F220/06C08F220/28C09D151/08
Inventor 赵志辉
Owner GUANGDONG YINYANG ENVIRONMENT FRIENDLY NEW MATERIALS CO LTD
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