Epoxy hybrid corrosion-resistant coating and preparation method thereof

An anti-corrosion coating, epoxy technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., to achieve the effect of reducing economic losses, fast curing speed and strong adhesion

Inactive Publication Date: 2019-04-12
兖矿能源集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the many problems existing in the existing anticorrosion technology and anticorrosion coatings, the present invention provides an epoxy hybrid anticorrosion coating for mechanical and electrical equipment such as mine racks and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An epoxy hybrid anti-corrosion coating, including A component and R component, and the weight ratio of A component and R component is 2:1, wherein, the A component is a semi-polymer, which includes the following mass Parts formula ingredients: 45 parts of polyisocyanate, 35 parts of polyether polyol; the R component includes the following formula ingredients in parts by mass: 5 parts of chain extender, 40 parts of hydroxyl-terminated polyether, 5 parts of wear-resistant filler, stabilizer 0.3 part of auxiliary agent, 1 part of pigment and filler, and the chain extender includes fluorine-modified polyamine chain extender.

[0031] In this embodiment, the polyisocyanate is 2,6-toluene diisocyanate with a functionality of 1.8-2.0, the polyether polyol is polytetrahydrofuran ether diol with a functionality of 2-4 and a hydroxyl equivalent of at least Above 350, the hydroxyl-terminated polyether is a polyether resin containing primary or secondary hydroxyl ends, and polyethy...

Embodiment 2

[0038] The same part of this embodiment and Embodiment 1 will not be described again, the difference is:

[0039]An epoxy hybrid anti-corrosion coating, including A component and R component, and the weight ratio of A component and R component is 2:1, wherein, the A component is a semi-polymer, which includes the following mass Parts formula ingredients: 55 parts of polyisocyanate, 45 parts of polyether polyol; the R component includes the following formula ingredients in parts by mass: 20 parts of chain extender, 60 parts of hydroxyl-terminated polyether, 15 parts of wear-resistant filler, stabilizer 1.0 parts of additives, 1.5 parts of pigments and fillers.

[0040] In this embodiment, the polyisocyanate is 2,6-toluene diisocyanate, the polyether polyol is polycaprolactone diol, and the hydroxyl-terminated polyether is polypropylene glycol ether.

[0041] A preparation method for epoxy hybrid anticorrosion coating, comprising the steps of:

[0042] S1: To prepare component...

Embodiment 3

[0048] The same part of this embodiment and Embodiment 1 will not be described again, the difference is:

[0049] An epoxy hybrid anti-corrosion coating, including A component and R component, and the weight ratio of A component and R component is 2:1, wherein, the A component is a semi-polymer, which includes the following mass Parts formula ingredients: 65 parts polyisocyanate, 55 parts polyether polyol; the R component includes the following mass parts formula ingredients: 30 parts chain extender, 80 parts hydroxyl-terminated polyether, 25 parts wear-resistant filler, stabilizer 2 parts of additives, 2 parts of pigments and fillers.

[0050] The polyisocyanate is 2,6-toluene diisocyanate, the polyether polyol is a low unsaturation polyether, and the hydroxyl-terminated polyether is polyglycerol ether.

[0051] A preparation method for epoxy hybrid anticorrosion coating, comprising the steps of:

[0052] S1: To prepare component A, add 2,6-toluene diisocyanate into a react...

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Abstract

The invention discloses an epoxy hybrid corrosion-resistant coating and a preparation method thereof. The coating comprises a component A and a component R, wherein the weight ratio of the component Ato the component R is 2:1, the component A is a semi-polymer comprising 45-65 parts of polyisocyanate and 35-55 parts of polyether polyol, and the component R comprises 5-30 parts of a chain extender, 40-80 parts of hydroxy-terminated polyether, 5-25 parts of wear-resistant filler, 0.3-2 parts of a stabilizing aid and 1-2 parts of pigment filler; and the chain extender includes a fluorine-modified polyamine chain extender. The epoxy hybrid corrosion-resistant coating has no need of solvents, convenient use, a high curing speed and high adhesion, long-acting and thick-coating corrosion-resistant effects are achieved, the service life of electromechanical equipment in underground mines is improved effectively, less maintenance time is needed, the reliability and safety of continuous operation of the underground equipment are improved, and the economic losses caused by corrosion are reduced; and meanwhile construction with water can be carried out under the conditions of flash rust and humid environment in the coal mines, and great significance to the production site is achieved.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to an epoxy hybrid anti-corrosion coating and a preparation method thereof. Background technique [0002] According to statistics, coal mine safety production has received great attention in the development of the coal industry. According to the report of the State Administration of Work Safety, coal currently accounts for about 70% of my country's primary energy consumption, and occupies an extremely important position in my country's economic and social development. In view of the harsh corrosive environment in the underground, the shaft shaft equipment (trunk wheel, tank beam, support, tank road, ladder room, etc.), lifting containers (cages, skips), drainage pipes, belt conveyor brackets and other steel structural parts Corrosion is very serious. The service life of large-scale mines in my country should be 80 to 100 years. In addition, coal mining is deep unde...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D175/08C09D5/08
CPCC09D5/08C09D175/08
Inventor孙彦良邢天海刘楷裴计田代长春王春奇姜海李双忠杨传久杜新亮刘志坚王庆伟郭金宝
Owner兖矿能源集团股份有限公司