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Rust-proof waterborne epoxy coating material and preparation method thereof

A water-based epoxy coating, epoxy technology, applied in the field of coatings, can solve the problems of decreased coating performance, poor dispersion, affecting coating stability, etc., and achieve the effect of good synergistic anti-rust and good anti-rust performance

Inactive Publication Date: 2018-05-18
季雅佩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Decades of research and development and application practice have proved that water-based epoxy paint inherits many advantages of epoxy resin, such as excellent adhesion to steel and cement, low shrinkage, and good resistance to medium acids, alkalis and other solvents. Corrosion and penetration resistance, good miscibility with various resins, fillers and additives, formulated into a series of commonly used anti-corrosion paints, can form a water-based epoxy anti-corrosion coating system; but compared with solvent-based coatings, The formulation of water-based coatings is complex and usually contains a variety of inorganic additives, and these inorganic additives will affect the stability of the coating film due to poor dispersion with the resin, resulting in a decrease in the performance of the coating film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of antirust waterborne epoxy paint, it is made up of the raw material of following weight part:

[0024] Creosote oil 2, dodecenyl succinic acid 4, zinc ricinoleate 1, tributyl borate 4, lanolin 5, potassium perfluorobutane sulfonate 1, isopropanol 16, ammonium molybdate 2, Magnesium chloride 4, epoxy dispersion 110, 2,4-imidazolidinedione 0.2.

[0025] Described epoxy dispersion liquid is made up of the raw material of following weight part:

[0026] Boron trifluoride ether 0.2, epoxy resin E44110, sorbitan monooleate 3, molybdenum oxide 5, polyethylene glycol 13, alkylated diphenylamine 1, silane coupling agent kh5502.

[0027] The preparation method of described epoxy dispersion liquid comprises the following steps:

[0028] (1) Take molybdenum oxide, add it to 30 times its weight in deionized water, add silane coupling agent kh550, and keep stirring at 70°C for 2 hours to obtain a silane dispersion;

[0029] (2) Take the alkylated diphenylamine, add it to ...

Embodiment 2

[0038] A kind of antirust waterborne epoxy paint, it is made up of the raw material of following weight part:

[0039] Creosote oil 0.7, Dodecenylsuccinic acid 3, Zinc ricinoleate 0.7, Tributyl borate 3, Lanolin 2, Potassium perfluorobutane sulfonate 0.6, Isopropanol 10, Ammonium molybdate 1, Magnesium chloride 2, epoxy dispersion 100, 2,4-imidazolidinedione 0.1.

[0040] Described epoxy dispersion liquid is made up of the raw material of following weight part:

[0041] Boron trifluoride ether 0.1, epoxy resin E44100, sorbitan monooleate 2, molybdenum oxide 4, polyethylene glycol 10, alkylated diphenylamine 0.4, silane coupling agent kh5501.

[0042] The preparation method of described epoxy dispersion liquid comprises the following steps:

[0043] (1) Take molybdenum oxide, add it to 25 times its weight in deionized water, add silane coupling agent kh550, and keep stirring at 65°C for 1 hour to obtain a silane dispersion;

[0044] (2) Take alkylated diphenylamine, add it t...

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Abstract

The invention discloses a rust-proof waterborne epoxy coating material. The rust-proof waterborne epoxy coating material is prepared from the following raw materials in parts by weight: 0.7 to 2 partsof wood creosote, 3 to 4 parts of dodecenylsuccinic acid, 0.7 to 1 part of zinc diricinoleate, 3 to 4 parts of tributyl borate, 2 to 5 parts of wool grease, 0.6 to 1 part of potassium perfluorobutanesulfonate, 10 to 16 parts of isopropanol, 1 to 2 parts of ammonium molybdate, 2 to 4 parts of magnesium chloride, 100 to 110 parts of epoxy dispersion liquid and 0.1 to 0.2 part of 2,4-imidazolidinone. According to the rust-proof waterborne epoxy coating material disclosed by the invention, the zinc diricinoleate, the ammonium molybdata, the wool grease, the dodecenylsuccinic acid and the like which are added in the rust-proof waterborne epoxy coating material have very good rust-proof performance, and a very good synergistic rust prevention effect can be obtained.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to an antirust water-based epoxy coating and a preparation method thereof. Background technique [0002] Epoxy resin has excellent chemical corrosion resistance, has excellent adhesion to many substrates, and can be cured with a variety of curing agents. The coating film has good compactness, strong rigidity, and good heat and wear resistance. Occupying an important position in anti-corrosion coatings, by adding different fillers and adjusting the types of curing agents, epoxy resin anti-corrosion coatings with different properties can be made, suitable for different anti-corrosion occasions, and achieve good protection effects. About 40% of the world's epoxy resins are used in the manufacture of epoxy coatings every year, most of which are used in the field of anti-corrosion. In my country, about 30% to 40% of epoxy resins are processed into various coatings, which are widely u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/62C09D7/63C09D7/61
CPCC09D163/00C08K2003/2255C09D5/08C08L91/00C08K13/06C08K9/06C08K3/22C08K3/24C08K5/092
Inventor 季雅佩
Owner 季雅佩
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