Corrosion-resistant and high-temperature resistant marine coating and preparation method thereof

Abstract

The invention discloses a corrosion-resistant and high-temperature resistant marine coating, which comprises the following raw materials in parts by weight: 6-13 parts of inorganic sodium silicate, 2-8 parts of phenolic resin, 5-12 parts of polyurethane, 0.5-1 part of silicon dioxide, 1-4 parts of titanium dioxide, 10-13 parts of polyphenylene sulfide fiber, 14-21 parts of brominated epoxy resin,2-5 parts of triethyl acetocitrate, 12-17 parts of polyaniline, 1-5 parts of nano zinc oxide, 19-25 parts of aluminum tripolyphosphate, 4-8 parts of polytetrafluoroethylene, 3-10 parts of copper oxideand 13-15 parts of ceramic fiber. The corrosion-resistant and high-temperature resistant marine coating has the advantages of good high-temperature resistance, strong tinting power and hiding power,and can meet the requirements of ship coatings.

Description

technical field [0001] The invention relates to the technical field of marine coatings, in particular to a corrosion-resistant and high-temperature resistant marine coating and a preparation method thereof. Background technique [0002] Marine ships will suffer complex and severe corrosion such as pitting corrosion, stress corrosion, and multiphase flow corrosion of seawater, sand and gravel, and cavitation during the journey. The materials are mostly austenitic stainless steel or Ferritic-austenitic duplex stainless steel. However, due to the low hardness of austenitic stainless steel, its wear resistance and corrosion resistance in complex environments are poor. Therefore, the use of reasonable surface engineering technology to strengthen the surface of the ship body has become the key to improving the service life of the ship. [0003] At present, the surface treatment techniques of ship hulls usually include laser cladding, plasma spray welding / surfacing welding, high-...

AI Technical Summary

Problems solved by technology

The color steel plate coating containing brominated epoxy resin prepared by this invention has certain advantages of corrosion resistance and high temperature resistance, and also has certain corrosion resistance and high temperature resistance performance, but its corrosion resistance and high temperature resistance performance is not very good. Good, and adhesion, tinting power and hiding power are not strong, are not suitable as ship coating; 35-65 parts, diatomite 6-25 parts, polyphenylene sulfide fiber 5-10 parts, starch 3-8 parts, carboxymethyl cellulose sodium 1-5 parts, hydrogenated rosin pentaerythritol ester 0.6-1.5 parts, nano 2 to 8 parts of titanium dioxide, 5 to 10 parts of far-infrared ceramic powder, 0.2 to 0.8 parts of zinc borate, and 6 to 12 parts of additives; the coating material has poor corrosion resistance and high temperature resistance, which cannot meet the needs of ship coatings. requirements; Chinese patent (CN104845492A) sulfuric acid / aluminum tripolyphosphate doped poly-o-toluidine anti-corrosion coating, including aluminum tripolyphosphate, poly-o-toluidine, epoxy resin, talcum powder, titanium dioxide, micaceous iron oxide, phosphoric acid Zinc, sodium silicate, etc., the coating has high corrosion resistance, but its high temperature resistance is poor, the tinting strength and hiding power are very poor, and it cannot meet the requirements of marine coatings

[0005] Aiming at the various shortcomings of ordinary coating materials in the prior art, which cannot meet the requirements of marine coatings, the applicant has developed a corrosion-resistant and high-temperature resistant marine coating

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