High-corrosion-resistance metal anti-corrosive paint and preparation method thereof

Abstract

The invention relates to the technical field of corrosion prevention of metals, and particularly relates to a high-corrosion-resistance metal anti-corrosive paint. The paint consists of the following components in percentage by mass: 20-35 percent of epoxy resin, 5-15 percent of water-based amino resin, 10-17 percent of polyamide, 10-20 percent of zinc powder, 2-6 percent of a film forming agent, 25-30 percent of graphene and the balance of water. The high-corrosion-resistance metal anti-corrosive paint disclosed by the invention has a good rustproof effect on metals by strictly controlling the amount of used zinc and grapheme, and can be used for slowing down metal corrosion, lowering the cost and also forming a uniform passivation layer and a uniform corrosion inhibition layer on the surface of a metal so that an overall coating is subjected to synchronous corrosion inhibition, and the anti-corrosive paint for a boat is endowed with excellent waterproofness, alkali resistance, artificial weathering aging resistance and corrosion resistance. The adopted paint system is a water-based paint system which has an excellent anti-corrosive effect in seawater, so the application range of the paint is effectively widened.

Description

Technical field [0001] The invention relates to the technical field of metal anticorrosion, in particular to a high corrosion resistance metal anticorrosion paint and a preparation method thereof. Background technique [0002] Metal materials are damaged by the surrounding medium, which is called metal corrosion. Rust of metal is the most common form of corrosion. During corrosion, a chemical or electrochemical heterogeneous reaction occurs on the interface of the metal, which turns the metal into an oxidation (ion) state. This will significantly reduce the strength, plasticity, toughness and other mechanical properties of metal materials, destroy the geometric shape of metal components, increase wear between parts, deteriorate electrical and optical physical properties, shorten the service life of the equipment, and even cause disasters such as fires and explosions. Sexual accidents. The economic loss caused by metal corrosion in the United States in 1975 was 70 billion U.S. ...

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Problems solved by technology

At the same time, corrosion may also become an obstacle to production development and technological progress.

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