Anticorrosive paint and preparation method thereof

Abstract

The invention discloses an anticorrosive coating which is characterized in that the anticorrosive coating is prepared from the following raw materials in parts by weight: 40 to 50 parts of epoxy poly2, 3-diamino-5-fluoroquinazoline carboxyl-terminated polyurethane amide, 20 to 30 parts of carboxyl asphalt, 1 to 3 parts of 4-fluoro-1, 2-phenylenediamine, 2 to 5 parts of (triethoxysilane) acetic acid, 10 to 15 parts of filler, 1 to 3 parts of leveling agent, 2 to 4 parts of dispersing agent and 20 to 30 parts of organic solvent. The invention also discloses a preparation method of the anticorrosive paint. The anticorrosive paint disclosed by the invention is remarkable in anticorrosive effect, high in bonding strength, short in curing time, good in weather resistance, capable of keeping themechanical property of a metal material, compact in coating, excellent in constructability, adaptability and durability, high in economic value and high in social value.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-corrosion coating and a preparation method thereof. Background technique [0002] In recent years, with the rapid economic development and the advancement of urban-rural integration, national key projects and large-scale engineering projects have sprung up like mushrooms. Behind these major engineering projects are inseparable from the extensive use of metal materials, represented by steel Metal materials are basic structural materials and are known as "the bones of industry". These materials are closely related to the development of human civilization and social progress, and are widely used in the marine environment and aviation fields. However, metal materials are easy to corrode, especially Especially in the coastal and inland hot and humid environment, because the environment contains harmful corrosive media such as chlorides and sulfides, the corrosion problem of m...

AI Technical Summary

Problems solved by technology

However, the asphalt anti-corrosion coatings in the prior art have more or less defects such as poor cohesive force, poor anti-penetration performance, complicated construction technology, relatively high quality requirements for construction personnel, long curing time, and uneven coating film.

[0005] Chinese patent CN104404502 discloses "A Phosphate-Based Steel Bar Anti-corrosion Coating", which relates to a corrosion coating material for steel bars in marine reinforced concrete. The anti-corrosion coating has good bonding performance with the steel bar surface and has a compact structure. After curing, the strength is high, and its essence is a binder, which can be used for the repair of concrete damage, but there is a problem that the phosphate binder is easy to crack when it is under tension