Special anti-corrosion rust-proof paint with rust removal and preparation method thereof

Abstract

The invention discloses a special anti-corrosion rust-proof paint with rust removal. The paint comprises the components by weight: 21 to 29 percent of epoxy complex acid-propylene modified resin, 13 to 19 percent of epoxy saturated resin, 38.5 to 44.5 percent of mixed rust-proof pigment, 0.3 percent of addition agent, 16 percent of mixed solvent, 0.5 percent of leveling oil resistance agent and 0.7 percent of anti-settling agent. The paint is prepared from the epoxy modified resin with complex acid, a cashew nut oil curing agent, red iron oxide, zinc oxide, a solvent, the addition agent, and the like. The paint prepared in proportion is sprayed or brushed on a rusty iron piece. The paint with excellent penetrability permeates into the bottom of an oxide layer. A generated paint film has the advantages of high density, good hardness and strong wearing resistance and impact force resistance. Therefore, the special anti-corrosion rust-proof paint with rust removal completely eliminates the secondary contact of new iron with the moisture and oxygen of the outside world, and eliminates the possibility of secondary rust fundamentally.

Description

technical field [0001] The invention relates to a coating, in particular to a rust-free special anti-corrosion and anti-rust coating. In addition, the invention also relates to a preparation method of the coating. Background technique [0002] The existing metal protective coatings are basically anti-rust paints. The following are the relevant technical parameters of conventional anti-rust paints: [0003] The viscosity (Tu-4 viscometer) is not less than 50 seconds, the fineness is not less than 60um, the drying time is not less than 24 hours, the hardness is not less than 0.40, the impact resistance is not less than 50kg / cm, the adhesion is grade 1, and the salt water resistance can not afford 48h Bubble, no rust, good nitro resistance. [0004] The anti-rust principle of conventional anti-rust paint is: firstly, the steel surface is pretreated, and the floating rust or oxide layer on the steel surface is basically removed after pickling, phosphating, sandblasting, and pol...

AI Technical Summary

Problems solved by technology

This anti-rust process only uses anti-rust coatings to block the moisture and oxygen in the air from reacting with iron, so as to prevent secondary rusting. But in fact, floating rust can be removed, but the oxide layer cannot be removed. If it falls off, there are more or less residual parts, which is why the conventional anti-rust paint is easy to rust again

[0005] According to the actual use of conventional anti-rust and anti-corrosion in China for many years, the existing anti-rust paint cannot meet the maintenance and maintenance needs of anti-rust and anti-corrosion for many large-scale equipment and military projects; Pickling and phosphating are carried out before painting, and the resulting pickling and phosphating solution will seriously pollute the environment