Anticorrosive paint with rust for ships and preparation method thereof

Abstract

The invention discloses anticorrosive paint with rust for ships, which is used for directly coating the surface of a ship corroded steel product. A formula of the anticorrosive paint with the rust forthe ships comprises the following components in percentage by mass: 20 to 25 percent of styrene-acrylic emulsion, 15 to 20 percent of epoxy resin, 5 to 20 percent of modified acrylic resin, 3 to 5 percent of rust stabilizing agent, 10 to 50 percent of filler, 0.1 to 0.3 percent of dispersant, 0.1 to 0.4 percent of de-foaming agent and 1 to 3 percent of coupling agent. The invention also disclosesa preparation method of the anticorrosive paint with the rust for the ships. The anticorrosive paint with the rust for the ships, disclosed by the invention, can be directly brushed and coated on thesurface of the ship corroded steel product and is applicable to rust prevention of ship steel product surfaces with rust-corroded and hard oxidized skin layers or old paint films; in a coating process, the anticorrosive paint can permeate a rust layer and seal the whole rust layer; the anticorrosive paint has strong permeability, high coating attachment force and good antirust effect, can be usedunder bad conditions and has relatively good durability and weather resistance.

Description

technical field [0001] The invention relates to the technical field of rusty coatings, in particular to a rusty anticorrosion coating for ships and a preparation method thereof. Background technique [0002] Ships are severely corroded in seawater environments, requiring the use of coatings with excellent performance for corrosion protection. Protective coatings for ships have a certain service life, such as: 3 years or 5 years. When maintenance is carried out beyond the service life, it is not uncommon to see that some structures have developed severe corrosion due to failure of the surface coating. These rust layers must be removed during maintenance before repainting. For ships, due to the large size and the limitation of maintenance time during operation, it is difficult to remove the rust layer on the surface of the steel substrate. If the rust layer is not completely removed, it will affect the bonding force between the coating and the steel substrate, which will sh...

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the rusty coatings in the prior art cannot meet the anti-corrosion requirements of ship equipment, it is necessary to design a method that can be directly painted on the surface of ship rusted steel, has good anti-rust effect, is environmentally friendly, and has no pollution. It is suitable for Rust-resistant anti-corrosion coating for ships with rust, hard oxide skin layer or old paint film on the surface of ship steel and convenient construction and preparation method thereof