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Green environmentally-friendly anti-corrosive water-based epoxy primer

A water-based epoxy, green and environmentally friendly technology, applied in the field of coatings, can solve the problems of single function, comprehensive performance such as adhesion, hardness and corrosion resistance, and achieve low VOC emissions, tough and dense paint film, and simple preparation methods Effect

Inactive Publication Date: 2019-05-07
镇江禹亨新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the functions of water-based epoxy coatings in the existing market are relatively single, which can only solve the volatilization hazards caused by traditional solvent-based paints, but other comprehensive properties such as adhesion, hardness and anti-corrosion performance have declined compared with traditional solvent-based paints. , therefore, it is necessary to develop a water-based epoxy primer that is both environmentally friendly and has high performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a green and environment-friendly anti-corrosion water-based epoxy primer is characterized in that the preparation steps are as follows:

[0030] (1) To prepare leveling agent, mix TEGO240, TEGO425, and TEGO450 in a weight ratio of 3:6:1, and obtain the leveling agent after mixing evenly;

[0031] (2) To prepare a slow-release additive, mix sodium molybdate, sodium dodecylbenzenesulfonate, and zinc acetate in a weight ratio of 3:5:2, and mix well to obtain a corrosion inhibitor;

[0032] (3) Put water-based epoxy resin, water-based epoxy emulsion, pigment, leveling agent, corrosion inhibitor, water-based epoxy curing agent, and deionized water into the paint mixing reaction kettle in sequence, stirring time 3H, stirring rate 550r / min, the finished product is obtained after stirring evenly.

[0033] Its composition includes by weight parts:

[0034] 5 parts water-based epoxy resin

[0035] 2 parts water-based epoxy emulsion

[0036] Pigment 5 ...

Embodiment 2

[0042] A preparation method of a green and environment-friendly anti-corrosion water-based epoxy primer is characterized in that the preparation steps are as follows:

[0043] (1) To prepare leveling agent, mix TEGO240, TEGO425, and TEGO450 in a weight ratio of 3:6:1, and obtain the leveling agent after mixing evenly;

[0044] (2) To prepare a slow-release additive, mix sodium molybdate, sodium dodecylbenzenesulfonate, and zinc acetate in a weight ratio of 3:5:2, and mix well to obtain a corrosion inhibitor;

[0045] (3) Put water-based epoxy resin, water-based epoxy emulsion, pigment, leveling agent, corrosion inhibitor, water-based epoxy curing agent, and deionized water into the paint mixing reaction kettle in sequence, stirring time 4H, stirring rate 600r / min, the finished product is obtained after stirring evenly.

[0046] Its composition includes by weight parts:

[0047] 15 parts of water-based epoxy resin

[0048] 21 parts of water-based epoxy emulsion

[0049] Pi...

Embodiment 3

[0055] A preparation method of a green and environment-friendly anti-corrosion water-based epoxy primer is characterized in that the preparation steps are as follows:

[0056] (1) To prepare leveling agent, mix TEGO240, TEGO425, and TEGO450 in a weight ratio of 3:6:1, and obtain the leveling agent after mixing evenly;

[0057] (2) To prepare a slow-release additive, mix sodium molybdate, sodium dodecylbenzenesulfonate, and zinc acetate in a weight ratio of 3:5:2, and mix well to obtain a corrosion inhibitor;

[0058] (3) Put water-based epoxy resin, water-based epoxy emulsion, pigment, leveling agent, corrosion inhibitor, water-based epoxy curing agent, and deionized water into the paint mixing reaction kettle in sequence, stirring time 3.5H, stirring speed 580r / min, the finished product is obtained after stirring evenly.

[0059] Its composition includes by weight parts:

[0060] 9 parts water-based epoxy resin

[0061] 15 parts of water-based epoxy emulsion

[0062] Pig...

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Abstract

The invention provides a green environmentally-friendly anti-corrosive water-based epoxy primer. The primer is characterized by comprising the following components, in parts by weight: 5-15 parts of water-based epoxy resin, 2-21 parts of a water-based epoxy emulsion, 5-30 parts of a pigment, 10-30 parts of a levelling agent, 4-21 parts of a corrosion inhibition auxiliary agent, 5-15 parts of a water-based epoxy curing agent and 30-45 parts of deionized water. According to the primer provided by the invention, a novel formula is adopted, and the composite corrosion inhibition auxiliary agent isused, so that the corrosion resistance and rust performance are improved; adhesion of a coating and various substrates is good, and the film is firm and compact and has excellent water, oil, acid, alkali and corrosion resistance; the water is used as a diluent, the organic solvent is small, so that the primer is green and environmentally friendly, and has low VOC emission and an excellent use effect; and the primer is suitable for various metal primers in heavy anti-corrosion fields, such as bridge steel structures, chemical storage tanks, underground pipelines, electricity transmission towers, machinery and equipment.

Description

technical field [0001] The invention relates to a paint, in particular to a green and environment-friendly anti-corrosion water-based epoxy primer. Background technique [0002] At present, most of the existing epoxy coatings are solvent-based and contain a lot of organic solvents, which not only pollute the environment, but also pose a great threat to the health of construction workers. [0003] In the existing technology, water-based coatings use water as a solvent or dispersion medium, have very little VOC emissions, are non-toxic, environmentally friendly, odorless, non-flammable and non-explosive, and have become an important direction and research hotspot in the development of coatings. In order to minimize the pollution of the coatings used in production to the environment, waterborne epoxy coatings have attracted more and more attention. [0004] However, the functions of water-based epoxy coatings in the existing market are relatively single, which can only solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/20
Inventor 马玉鹏吕壮志张文俊
Owner 镇江禹亨新材料有限公司
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