Water-based steel structure anti-corrosion aqueous dispersion coating and its preparation method and application

Abstract

The invention provides a water-based steel structure anticorrosion aqueous dispersion coating and a preparation method and application thereof. The water-based steel structure anticorrosion aqueous dispersion coating comprises components: deionized water, an auxiliary, an anti-rust agent, a anti-rust pigment, a pigment filler, modified nano aqueous dispersion polymer emulsion, color paste, antifoaming agent and the like. The water-based steel structure anticorrosion aqueous dispersion coating provided by the invention is non-toxic, tasteless and odorless, has no irritation, is high in stability, is less affected by the construction environment, can adapt to construction of different special-shaped steel structures, and can adapt to different forms of coating equipment; the coating can be applied on a structure with a low surface treatment level St1, a moisture base surface, a slightly rust layer and a structural fundamental plane with a firm old coating, is high in coating adhesion and good in anti-rust performance, has excellent salt fog resistance and weather resistance, reaches or exceeds main technical performance indexes of a general solvent-type anticorrosion coating, and has a long-acting service life.

Description

technical field [0001] The invention relates to the field of chemical anti-corrosion, in particular to a novel high-performance low-surface-treatment steel structure anti-corrosion aqueous dispersion coating, and in particular to a water-based steel structure anti-corrosion aqueous dispersion coating and its preparation method and application. Background technique [0002] Because the VOC of traditional solvent-based coatings produces serious pollution in the atmosphere, the volatilized VOC in the production and application of anti-corrosion coatings attaches great importance to the pollution of the atmosphere. Countries all over the world have issued a series of regulations to protect the environment. [0003] With the development of petrochemical and polymer technology, the emergence of various new materials and new technologies, and the requirements of environmental protection and ecological progress, water-based coatings, high-solid coatings, powder coatings and nano-coat...

AI Technical Summary

Problems solved by technology

[0004] Due to the main technical routes of water dispersion polymers: water dilution, water emulsification, hybrid modification, etc., most of them are prepared by salt formation and emulsification (organic emulsifier). The disadvantages are poor physical and chemical properties, and the construction conditions are affected. Limitation, unsatisfactory coating film quality, unsatisfactory service life, etc., affect the popularization and application of water dispersion anti-corrosion coatings

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