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Thermosetting waterborne epoxy acrylic acid composite modified polyester resin and preparation method thereof

A technology of epoxy acrylic compound modification, applied in the direction of coating, etc., can solve the problems of high risk, air pollution, poor durability, etc., and achieve the effect of reducing VOC content, improving safety performance, and improving overall performance

Inactive Publication Date: 2019-06-07
JIANGMEN SANMU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing polyester resins for baking varnishes are solvent-based products, which need to add a large amount of organic solvents in the process of preparation and use. The defects mainly lie in the following aspects: (1) Unhealthy and not environmentally friendly: a large amount of organic solvents The solvent will volatilize in the air, which will greatly damage the health of the user, pollute the air, and have poor environmental protection; (2) high cost: the price of organic solvents is high, and transportation is inconvenient, which will increase the cost and price; (3) Poor safety: flammable and explosive, high risk
In addition to the above defects, most of the existing polyester resins have the problems of low strength, easy hydrolysis, poor outdoor durability, poor comprehensive performance and use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A thermosetting water-based epoxy acrylic composite modified polyester resin, comprising the following raw materials in parts by weight:

[0028] 60 parts of phthalic anhydride, 120 parts of tetrahydrophthalic anhydride, 50 parts of adipic acid, 20 parts of trimethylolpropane, 140 parts of neopentyl glycol, 10 parts of xylene, 20 parts of epoxy resin, 5 parts of acrylic acid, 20 parts of butyl acrylate 10 parts of hydroxyethyl acrylate, 15 parts of styrene, 3 parts of benzoyl peroxide, 30 parts of ethylene glycol monobutyl ether, 5 parts of dimethylethanolamine and 100 parts of deionized water.

[0029] 1. a preparation method of thermosetting water-based epoxy acrylic compound modified polyester resin, comprising the following steps:

[0030] a, 20 parts of epoxy resin, 60 parts of phthalic anhydride, 120 parts of tetrahydrophthalic anhydride, 50 parts of adipic acid, 20 parts of trimethylolpropane, 140 parts of neopentyl glycol, and 10 parts of xylene are added to the...

Embodiment 2

[0043] A thermosetting water-based epoxy acrylic composite modified polyester resin, comprising the following raw materials in parts by weight:

[0044]70 parts of phthalic anhydride, 140 parts of tetrahydrophthalic anhydride, 60 parts of adipic acid, 30 parts of trimethylolpropane, 160 parts of neopentyl glycol, 20 parts of xylene, 30 parts of epoxy resin, 10 parts of acrylic acid, 30 parts of butyl acrylate 15 parts of hydroxyethyl acrylate, 20 parts of styrene, 3 parts of benzoyl peroxide, 50 parts of ethylene glycol monobutyl ether, 10 parts of dimethylethanolamine and 200 parts of deionized water.

[0045] 1. a preparation method of thermosetting water-based epoxy acrylic compound modified polyester resin, comprising the following steps:

[0046] a. 30 parts of epoxy resin, 70 parts of phthalic anhydride, 140 parts of tetrahydrophthalic anhydride, 60 parts of adipic acid, 30 parts of trimethylolpropane, 160 parts of neopentyl glycol, and 20 parts of xylene are added to th...

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Abstract

The invention discloses a thermosetting waterborne epoxy acrylic composite modified polyester resin and a preparation method thereof. The thermosetting waterborne epoxy acrylic composite modified polyester resin comprises phthalic anhydride, tetrahydrophthalic anhydride, adipic acid, trimethylolpropane, neopentyl glycol, xylene, epoxy resin, acrylic acid, butyl acrylate, hydroxyethyl acrylate, styrene, benzoyl peroxide, ethylene glycol monobutyl ether, dimethylethanolamine and deionized water. The modified polyester resin can improve the comprehensive performances of a paint film, is a thermosetting waterborne resin, and has the advantages of few organic solvents, good environmental friendliness, high hardness, good adhesion, good wear resistance, good solvent resistance, excellent tensilestrength and good weather resistance.

Description

technical field [0001] The invention relates to a coating, in particular to a thermosetting water-based epoxy-acrylic composite modified polyester resin and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] As a decoration and surface protection product, paint is one of the commonly used polymer materials. Most of the existing polyester resins for baking varnishes are solvent-based products, which need to add a large amount of organic solvents in the process of preparation and use. The defects mainly lie in the following aspects: (1) Unhealthy and not environmentally friendly: a large amount of organic solvents The solvent will volatilize in the air, which will greatly damage the health of the user, pollute the air, and have poor environmental protection; (2) high cost: the price of organic solvents is high, and transportation is inconvenient, which will increase the cost and price; (3) Poor safety: flammable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D161/32C08G59/42C08G59/62
Inventor 韩小宝刘应科程明杰蒋震
Owner JIANGMEN SANMU CHEM
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