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Epoxy acrylic acid modified waterborne alkyd resin and preparation method thereof

A technology of water-based alkyd resin and epoxy acrylic acid, which is applied in the direction of coating, etc., can solve the problems of slow drying of water-based alkyd resin coating, environmental and human health hazards, high organic solvent content, etc., achieve fast drying speed and improve adhesion , The effect of low equipment requirements

Pending Publication Date: 2021-08-20
JIANGSU HUALUN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Alkyd resin has always been the backbone resin in the paint industry due to the advantages of cheap raw materials, plump paint film, high gloss, good adhesion, and excellent durability. However, due to the high content of organic solvents in traditional solvent-based alkyd resin coatings , which is harmful to the environment and human health, water-based alkyd resin coatings dry slowly, poor film hardness, poor water resistance, poor alkali resistance and solvent resistance, etc., so the research performance is good, less pollution, low energy consumption and other green environmental protection Modified waterborne alkyd resin is particularly important

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An epoxy acrylic acid modified water-based alkyd resin, comprising the following components by weight: 28 parts of linseed oil, 4.2 parts of rosin, 8.5 parts of phthalic anhydride, 7.7 parts of trimethylolpropane (polyol), 0.4 part of xylene, 22.5 parts of 604 epoxy resin, 0.045 parts of organotin, 2.7 parts of acrylic acid, 25 parts of ethylene glycol butyl ether, 2.9 parts of styrene, 1.9 parts of n-butyl acrylate, 0.42 parts of di-tert-butyl peroxide (initiator), 2 3.3 parts of methyl ethanolamine (DMEA).

[0025] A kind of preparation method of epoxy acrylic acid modified water-based alkyd resin of above-mentioned embodiment 1, comprises the steps:

[0026] (1) 28 parts by weight of the linseed oil, 4.2 parts of the rosin, 8.5 parts of the phthalic anhydride, 7.7 parts of the trimethylolpropane and 0.4 parts of the xylene are dropped into a reflux condenser, In a four-necked flask with a mechanical stirrer, a constant pressure dropping funnel and a thermometer, sta...

Embodiment 2

[0030] An epoxy acrylic acid modified water-based alkyd resin, comprising the following components by weight: 20 parts of linseed oil, 5 parts of rosin, 10.3 parts of phthalic anhydride, 7.5 parts of trimethylolpropane (polyol), 0.6 part of xylene, 25.3 parts of 604 epoxy resin, 0.048 parts of organic tin, 3 parts of acrylic acid, 22 parts of ethylene glycol butyl ether, 2.7 parts of styrene, 1.9 parts of n-butyl acrylate, 0.4 parts of di-tert-butyl peroxide (initiator), 2 parts 3.1 parts of methyl ethanolamine (DMEA).

[0031] A kind of preparation method of epoxy acrylic acid modified water-based alkyd resin of above-mentioned embodiment 2, comprises the steps:

[0032](1) 20 parts by weight of the linseed oil, 5 parts of the rosin, 10.3 parts of the phthalic anhydride, 7.5 parts of the trimethylolpropane and 0.6 parts of the xylene are dropped into a reflux condenser, In a four-necked flask with a mechanical stirrer, a constant pressure dropping funnel and a thermometer, s...

Embodiment 3

[0036] An epoxy acrylic acid modified water-based alkyd resin, comprising the following components by weight: 25 parts of linseed oil, 4.5 parts of rosin, 9.6 parts of phthalic anhydride, 8.1 parts of trimethylolpropane (polyol), 0.7 parts of xylene, 23.8 parts of 604 epoxy resin, 0.05 parts of organotin, 2.9 parts of acrylic acid, 28 parts of ethylene glycol butyl ether, 2.5 parts of styrene, 2 parts of n-butyl acrylate, 0.45 parts of di-tert-butyl peroxide (initiator), 2 parts 3.5 parts of methyl ethanolamine (DMEA).

[0037] A kind of preparation method of epoxy acrylic acid modified water-based alkyd resin of above-mentioned embodiment 3, comprises the steps:

[0038] (1) 25 parts by weight of the linseed oil, 4.5 parts of the rosin, 9.6 parts of the phthalic anhydride, 8.1 parts of the trimethylolpropane and 0.7 parts of the xylene are dropped into a reflux condenser, In the four-necked flask with a mechanical stirrer, a constant pressure dropping funnel and a thermomete...

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PUM

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Abstract

The invention discloses epoxy acrylic acid modified waterborne alkyd resin and a preparation method thereof. The epoxy acrylic acid modified waterborne alkyd resin is prepared from 20 to 28 parts of linseed oil, 4.2 to 5 parts of rosin, 8.5 to 10.3 parts of phthalic anhydride, 7.5 to 8.1 parts of polyol, 0.4 to 0.7 part of xylene, 22.5 to 25.3 parts of epoxy resin, 0.045 to 0.05 part of organic tin, 2.7 to 3 parts of acrylic acid, 22 to 28 parts of ethylene glycol butyl ether, 2.5 to 2.9 parts of styrene, 1.9 to 2 parts of n-butyl acrylate, 0.4 to 0.45 part of an initiator, and 3.1 to 3.5 parts of dimethylethanolamine. The preparation method comprises the following steps: (1) mixing the linseed oil, the rosin, the phthalic anhydride, the polyoland the dimethylbenzene in parts by weight, carrying out heating reaction, continuing heating reflux after the reaction, and stopping the reaction when the acid value of a reaction product is detected to be less than 70 mgKOH / g; (2) cooling, adding epoxy resin and organic tin for continuous reaction, cooling again, adding ethylene glycol butyl ether, and uniformly stirring to obtain a mixed material; and (3) cooling the mixed material, adding acrylic acid, styrene, n-butyl acrylate and the initiator for polymerization reaction, replenishing the initiator after the reaction, cooling, and adding dimethylethanolamine to obtain the epoxy acrylic acid modified waterborne alkyd resin.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to an epoxy acrylic acid modified water-based alkyd resin and a preparation method thereof. Background technique [0002] Alkyd resin has always been the backbone resin in the paint industry due to its cheap and easy-to-obtain raw materials, plump paint film, high gloss, good adhesion, and excellent durability. However, due to the high organic solvent content of traditional solvent-based alkyd resin coatings , is harmful to the environment and human health, water-based alkyd resin coatings dry slowly, poor film hardness, poor water resistance, poor alkali resistance and solvent resistance, so the research performance is good, less pollution, low energy consumption and other green environmental protection Modified waterborne alkyd resins are especially important. Contents of the invention [0003] The object of the present invention is to provide a kind of epoxy acrylic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/49C08G81/00C08F283/00C08F220/06C08F212/08C08F220/18C09D151/08
CPCC08F283/00C08G63/48C08G81/00C09D151/08C08F220/06C08F212/08C08F220/1804
Inventor 吴昊戴忠李茉
Owner JIANGSU HUALUN CHEM