Special epoxy anticorrosive paint for special equipment and preparation method thereof

Abstract

The embodiment of the invention relates to a special epoxy anticorrosive paint for special equipment and a preparation method thereof, the paint is composed of a component A and a component B which are respectively prepared in advance and are uniformly mixed during construction, the mass ratio of the component A to the component B is 1: (0.2-0.3). The component A is prepared from the following components in percentage by mass: 25 to 35 percent of epoxy resin, 10 to 15 percent of polyurethane, 5 to 10 percent of alkali metal silicic acid solution, 20 to 30 percent of inorganic filler, 5 to 10 percent of inorganic pigment, 2 to 3 percent of an ammonium salt copolymer, 0.5 to 1 percent of a functional additive, 2 to 3 percent of an additive, 0.5 to 1 percent of a high-temperature corrosion inhibitor, 1 to 3 percent of siloxane and 5 to 10 percent of a reactive diluent; and the component B is an amine curing cross-linking agent. The special epoxy anticorrosive paint for special equipment provided by the embodiment of the invention can be widely applied to special equipment metal surfaces and special structure metal material surfaces in the special fields of aerospace, military facilities, petrochemical engineering, maritime ships and warships and the like in various high-temperature cold and humid environments to provide anticorrosive protection.

Description

technical field [0001] The embodiment of the present invention relates to the field of functional anti-corrosion materials, in particular to an epoxy anti-corrosion coating for special equipment and a preparation method thereof. Background technique [0002] Corrosion causes the world to lose about 10% to 20% of metals every year. International statistics show that the total loss due to corrosion accounts for 1 to 5% of the GDP of each country. The economic loss caused by corrosion in China exceeds 2 trillion yuan each year. It is extremely huge, about 25% of which can be solved by effective anti-corrosion measures, corrosion will cause significant direct or indirect losses, stress corrosion of metal materials and corrosion fatigue caused by production equipment and equipment leakage , often cause catastrophic major accidents, bring great economic losses, and endanger personal safety; secondly, metal corrosion will bring a lot of metal consumption and waste a lot of resource...

AI Technical Summary

Problems solved by technology

[0006] So far, the use of heavy-duty anti-corrosion coatings is still the most important, the most effective, the most economical and the most common means of protection for metal structures. Judging from the current production and application conditions, there are basically no coatings in the market that can be stored in low-temperature and high-temperature environments in the base. The surface of metal components under the thermal insulation coating during transportation, the anti-corrosion coating directly coated on the wet and rusty metal surface, or even if there is, its adhesion is extremely low, and the protection performance of the substrate is extremely poor, and it is difficult to achieve long-term protection , and extremely expensive

[0007] At present, the common traditional solvent-based anti-corrosion coatings also have many disadvantages, such as high cost, containing VOC toxic volatile substances, and the physical properties of some types of anti-corrosion coatings are not ideal, etc. The solvents used in the system are all flammable and explosive dangerous goods. , there are great safety hazards in the process of production, transportation and construction

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