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Waterborne anticorrosive coating and preparation method

A water-based technology for anti-corrosion coatings, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of weak use concept, secondary pollution, low occupancy rate, etc. Convenience, narrow distribution effect

Inactive Publication Date: 2015-12-23
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, coatings are widely used in all walks of life, and the solvent content in traditional solvent-based coatings is often more than 40%. These volatile organic compounds (VOC) enter the atmosphere, causing air pollution, and VOC will produce many Chemical reaction will form more toxic secondary pollution, while water-soluble coatings use water as a solvent, have extremely low VOC content, and have no pollution to the environment. Therefore, replacing solvent-based coatings with water-based coatings is the current development trend of the coatings industry; therefore, engaged in The research on water-based coatings can not only bring economic benefits, but also benefit the protection of the environment. At present, the market share of water-based coatings in my country is relatively low. Skeptical attitude, so there is a long way to go to develop and promote water-based coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present embodiment provides a kind of water-based anti-corrosion coating, it is characterized in that, this water-based anti-corrosion coating comprises the following components in parts by mass:

[0041] Water-based epoxy resin emulsion: 60 parts, pigments and fillers: 28 parts, film-forming aid ethylene glycol: 3 parts, leveling agent polyacrylic acid: 3 parts, defoamer tributyl phosphate: 3 parts, thickener hydroxyl Methyl cellulose: 1.1 parts, dispersant sodium hexametaphosphate: 1 part, water: 8 parts, curing agent diaminodiphenyl methyl sulfone DDS: 35 parts;

[0042] Among them: the pigment and filler are a mixture of iron oxide red and zinc phosphate, and the iron oxide red and zinc phosphate are mixed in a mass ratio of 1:1;

[0043] The preparation of aqueous epoxy resin emulsion is specifically as follows:

[0044] Pour E51 type epoxy resin into a 1000ml beaker, and heat it to 70°C in a water bath, then put it into an ultrasonic instrument, add emulsifie...

Embodiment 2

[0055] The present embodiment provides a kind of water-based anti-corrosion coating, it is characterized in that, this water-based anti-corrosion coating comprises the following components in parts by mass:

[0056]Water-based epoxy resin emulsion: 75 parts, pigments and fillers: 24 parts, film-forming aid ethylene glycol: 1 part, leveling agent hydroxymethyl cellulose: 4 parts, defoamer tributyl phosphate: 4 parts, increase Thickener hydroxymethyl cellulose: 0.5 parts, dispersant sodium hexametaphosphate: 2 parts, water: 10 parts, curing agent phenolic modified amine: 40 parts;

[0057] Among them: the pigment and filler are a mixture of iron oxide red and zinc phosphate, and the iron oxide red and zinc phosphate are mixed in a mass ratio of 1:1;

[0058] The preparation of aqueous epoxy resin emulsion is specifically as follows:

[0059] Pour E51 type epoxy resin into a 1000ml beaker, and heat it to 80°C in a water bath, then put it into an ultrasonic instrument, add emulsi...

Embodiment 3

[0070] The present embodiment provides a kind of water-based anti-corrosion coating, it is characterized in that, this water-based anti-corrosion coating comprises the following components in parts by mass:

[0071] Water-based epoxy resin emulsion: 68 parts, pigments and fillers: 20 parts, film-forming aid ethylene glycol: 2 parts, leveling agent polyacrylic acid: 2 parts, defoamer tributyl phosphate: 5 parts, thickener hydroxyl Methylcellulose: 1.5 parts, dispersant sodium hexametaphosphate: 3 parts, water: 5 parts, curing agent diethylenetriamine: 30 parts;

[0072] Among them: the pigment and filler are a mixture of iron oxide red and zinc phosphate, and the iron oxide red and zinc phosphate are mixed in a mass ratio of 1:1;

[0073] The preparation of aqueous epoxy resin emulsion is specifically as follows:

[0074] Pour E51 type epoxy resin into a 1000ml beaker, heat it in a water bath to 75°C, then put it into an ultrasonic instrument, add emulsifier OP-10 and polyoxye...

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Abstract

The invention discloses a waterborne anticorrosive coating. The waterborne anticorrosive coating comprises the following components: waterborne epoxy resin emulsion, a pigment filler, a film forming assistant, a leveling agent, a defoaming agent, a thickening agent, a dispersing agent, water and a curing agent, wherein the pigment filler is mixture of iron oxide red and zinc phosphate which are mixed according to a mass ratio of 1:1; the film forming assistant is glycol; the leveling agent is polyacrylic acid or hydroxymethyl cellulose; the defoaming agent is tributyl phosphate; the thickening agent is hydroxymethyl cellulose; the dispersing agent is sodium hexametaphosphate; the curing agent is one of diethylenetriamine, m-phenylenediamine, modified phenolic amine and diamino diphenyl sulfone (DDS). The invention further discloses a preparation method of the waterborne anticorrosive coating, the coating has good anticorrosive performance, the preparation method is simple and feasible and the cost is low.

Description

technical field [0001] The invention relates to a water-based anti-corrosion coating and a preparation method thereof, in particular to a water-based anti-corrosion coating and a preparation method thereof. Background technique [0002] As we all know, coatings are widely used in all walks of life, and the solvent content in traditional solvent-based coatings is often more than 40%. These volatile organic compounds (VOC) enter the atmosphere, causing air pollution, and VOC will produce many Chemical reaction will form more toxic secondary pollution, while water-soluble coatings use water as a solvent, have extremely low VOC content, and have no pollution to the environment. Therefore, replacing solvent-based coatings with water-based coatings is the current development trend of the coatings industry; therefore, engaged in The research on water-based coatings can not only bring economic benefits, but also benefit the protection of the environment. At present, the market sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12C09D7/00C09D7/06C09D7/47
Inventor 陈平顾建强钱燕华
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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