Marine heavy anticorrosive epoxy aluminum-nickel-rare earth-enriched nano paint and preparation method thereof

Abstract

The invention discloses marine heavy anticorrosive epoxy aluminum-nickel-rare earth-enriched nano paint which is prepared from a component A and a component B according to a mass ratio of 18:1, wherein the component A comprises the following components in parts by mass: 14-18 parts of epoxy resin, 3-6 parts of hydroxy acrylic resin, 125-145 parts of nano aluminum powder, 25-30 parts of nano nickel powder, 1-2 parts of rare earth powder, 3-6 parts of talcum powder, 2-4 parts of barium sulfate, 3-5 parts of anti-settling aid, 1-2 parts of dispersing aid and 10-13 parts of solvent; and the component B comprises the following components in parts by mass: 50-60 parts of curing agent and 40-50 parts of solvent. The invention also discloses a preparation method of the paint. According to the invention, the nano aluminum powder content in a paint film is high, the cost is low, the process is simple, and no special equipment is needed. A coating prepared by the invention has high matrix binding force, favorable binding force with other various additional coatings, excellent corrosion resistance in the marine atmospheric environment and long service life. Thus, the paint disclosed by the invention can be used as heavy anticorrosive paint for steel structures such as drilling platforms, bridges and the like in the marine atmospheric environment.

Description

technical field [0001] The invention relates to a coating technology, in particular to a marine heavy-duty anti-corrosion epoxy aluminum-nickel-rich rare earth nano coating and a preparation method thereof. Background technique [0002] At present, metal corrosion is a very serious problem. It is roughly estimated that the annual loss of metal structures, equipment and materials due to corrosion is approximately equivalent to 20%-40% of the metal output of the year, and more than 100 million tons of metals are scrapped due to corrosion every year in the world, and the economic loss accounts for 100% of the national total. 1.5%-3.5% of the total economic output value. In China, the economic loss caused by metal corrosion is as high as more than 30 billion yuan per year, accounting for 4% of the gross national product. Especially the marine corrosion in the marine environment, the corrosion of metal and other components in the marine environment, the harm it causes is very s...

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Problems solved by technology

But the preparation temperature is still high