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Waterborne epoxy coating and preparation method thereof

A water-based epoxy coating and epoxy technology, applied in the field of coatings, can solve the problems of complex formula of water-based coatings, decrease of coating film performance, affecting coating film performance, etc., achieve good synergistic corrosion resistance, improve quality, and improve water dispersion performance Effect

Inactive Publication Date: 2019-05-17
朱进平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, compared with solvent-based coatings, the formulation of water-based coatings is complex and usually contains a variety of additives, and these additives often affect the performance of the coating film, resulting in a decrease in the performance of the coating film, especially water resistance and corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of waterborne epoxy paint, it is made up of the raw material of following weight part:

[0023] Epoxy resin E51 50, water-soluble modified epoxy solution 180, magnesium lanolin soap 1, methyl nylonate 10, allyl polyethylene glycol 4, sucrose acetate isobutyrate 0.8.

[0024] Described water-soluble modified epoxy solution is made up of the following raw materials of weight part:

[0025] Silica powder 10, propylene oxide 3, stearic acid 7, triethanolamine 5, calcium ricinoleate 0.8, ethoxylated alkyl ammonium sulfate 1, dimethyl carbonate 20.

[0026] The preparation method of described water-soluble modified epoxy resin solution, comprises the following steps:

[0027] (1) Take propylene oxide, add it to dimethyl carbonate, and stir evenly to obtain an epoxy solution;

[0028] (2) Take silicon micropowder, add it to 30 times its weight in deionized water, add stearic acid, ultrasonicate for 10 minutes, send it into an oven, dry it at 120°C for 1 hour, discharg...

Embodiment 2

[0035] A kind of waterborne epoxy paint, it is made up of the raw material of following weight part:

[0036] Epoxy resin E51 60, water-soluble modified epoxy solution 220, magnesium lanolin soap 2, methyl nylonate 17, allyl polyethylene glycol 6, sucrose acetate isobutyrate 1.

[0037] Described water-soluble modified epoxy solution is made up of the following raw materials of weight part:

[0038] Microsilica powder 17, propylene oxide 4, stearic acid 9, triethanolamine 6, calcium ricinoleate 1, ethoxylated alkyl ammonium sulfate 2, dimethyl carbonate 20.

[0039] The preparation method of described water-soluble modified epoxy resin solution, comprises the following steps:

[0040] (1) Take propylene oxide, add it to dimethyl carbonate, and stir evenly to obtain an epoxy solution;

[0041] (2) Take silicon micropowder, add it to 40 times its weight in deionized water, add stearic acid, ultrasonicate for 14 minutes, send it into an oven, dry it at 130°C for 2 hours, discha...

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Abstract

The invention discloses a waterborne epoxy coating. The coating is prepared from raw materials in parts by weight as follows: 50-60 parts of epoxy resin E51, 180-220 parts of a water-soluble modifiedepoxy solution, 1-2 parts of lanolin magnesium soap, 10-17 parts of methyl nylon acid, 4-6 parts of allyl polyethylene glycol and 0.8-1 part of sucrose acetate isobutyrate. Added quaternary ammonium salt and calcium ricinoleate can have good synergistic corrosion resistance, and the quality of the finished coating is improved.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based epoxy coating and a preparation method thereof. Background technique [0002] A large amount of organic solvents such as benzene, toluene, xylene, etc. are added to traditional solvent-based coatings, most of which are flammable, explosive and toxic substances. Long-term inhalation of the human body will cause fatigue, memory loss and neurological diseases. In severe cases, it can cause cancer . Organic volatiles are directly discharged into the atmosphere, and under the radiation of ultraviolet rays, photochemical smog and acid rain will be generated, causing serious pollution to the atmosphere, and are considered to be one of the main sources of air pollution. With the strengthening of the whole society's awareness of environmental protection and labor protection, countries around the world have successively formulated laws and regulations to limit VOC emissio...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/62
Inventor 不公告发明人
Owner 朱进平
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