Water-borne epoxy anti-corrosion paint and preparing method thereof

Abstract

The invention relates to the field of water-borne anti-corrosion materials, and particularly discloses water-borne epoxy anti-corrosion paint and a preparing method thereof. The water-borne epoxy anti-corrosion paint comprises a component A and a component B mixed in use. The component A comprises a water-borne epoxy resin emulsion, potassium metasilicate, lithium silicate, a water-borne wetting dispersant and deionized water. The component B comprises zinc powder, carborundum, filler and antirust pigments. Through the two-component system with the component A and the component B, after the component B is added to the component A in use to be evenly stirred and filtered, spray-coating construction can be conducted, and the paint is easy and convenient to use, environmentally friendly, capable of saving energy and safe to use, can be widely used for corrosion prevention of a high-strength steel structure connecting face, has the advantages of excellent ageing resistance, temperature difference resistance, salt and alkali resistance and salt mist resistance, high hardness and the like, and can be used as long-acting maintenance-free external paint and high-performance anti-corrosionpaint.

Description

technical field [0001] The invention relates to the field of water-based anti-corrosion materials, in particular to a water-based epoxy anti-corrosion coating and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the expansion of the scale of infrastructure construction, the problem of protective coating for many engineering projects has become an important topic in the field of anti-corrosion engineering. Especially the anti-corrosion coating of the friction surface of the bolted and welded beam connection parts of steel facilities such as ships and bridges needs to be protected by an anti-corrosion coating with excellent anti-rust and anti-skid performance. A commonly used method at present is to use electric arc sprayed aluminum. The anti-slip coefficient of the electric arc sprayed aluminum layer is high, but the energy consumption of the electric arc sprayed aluminum construction process is high, and the p...

AI Technical Summary

Problems solved by technology

A commonly used method at present is to use electric arc sprayed aluminum. The anti-slip coefficient of the electric arc sprayed aluminum layer is high, but the energy consumption of the electric arc sprayed aluminum construction process is high, and the porosity of the aluminum coating is high, and it is easy to rust after long-term storage, so Additional special protection is required

[0003] In the Chinese patent with the authorized announcement number CN201520941U, a composite protective coating structure for the friction surface of bridge bolts is disclosed. It is sealed by spraying a layer of inorganic zinc-rich anti-rust and anti-skid coating on the metal layer, which can ensure anti-skid transfer coefficient and long-lasting corrosion resistance, but the scheme is relatively complicated, involving electric arc spraying aluminum system and painting system, and the cost is relatively highest

The Chinese patent with authorized notification number CN103146234B discloses an inorganic zinc-rich anti-rust and anti-skid coating, which is composed of three components A, B and C. The anti-rust and anti-skid performance can meet the requirements. However, the product adopts a three-component system. Increased construction difficulty and quality controllability, and this scheme belongs to alcohol-soluble inorganic zinc-rich system, the formula has low solid content and high solvent content, and a large amount of thinner is also used in construction and cleaning, resulting in high VOCs content in this scheme , not in line with environmental trends

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