Stable inorganic anticorrosive paint and process for preparing same

Abstract

The invention relates to stable inorganic anticorrosive paint and a process for preparing the same. The process includes heating an appropriate quantity of sodium silicate solution, adding silicone acrylic emulsion into the sodium silicate solution and uniformly stirring the sodium silicate solution and the silicone acrylic emulsion; stopping heating the sodium silicate solution and the silicone acrylic emulsion, adding titanate coupling agents into a system and stirring the titanate coupling agents and the system at the high speed; adding zinc powder into the system after the titanate coupling agents and the system are uniformly stirred and uniformly stirring the zinc powder and the system; adding MgCl2 aqueous solution and alkylphenol polyethylene oxide ether into the system, ultimately adding sodium stearate and potassium stearate into the system and uniformly stirring the MgCl2 aqueous solution, the alkylphenol polyethylene oxide ether, the sodium stearate, the potassium stearate and the system to obtain the stable inorganic anticorrosive paint.

Description

Technical field [0001] The invention relates to an anticorrosive paint and a preparation process thereof, in particular to an aqueous inorganic zinc-rich anticorrosive paint added with stability of alkylphenol polyethylene oxide ether and stearate and a preparation process thereof, belonging to the field of paint chemical industry . Background technique [0002] The corrosion resistance of steel is poor. Anticorrosion is very important for steel. According to statistics, the annual loss of steel due to corrosion accounts for about 10%-20% of the annual output. Corrosion is generally chemical or electrochemical between the metal surface and the medium. Corrosion caused by multiphase reactions will significantly reduce the strength, toughness and other mechanical properties of steel materials, destroy the geometry of metal components, and shorten the service life of equipment. For this reason, people use anti-corrosion paint to prevent or delay corrosion. [0003] The most commonly ...

AI Technical Summary

Problems solved by technology

Water-based inorganic zinc-rich paint has the advantages of no odor, non-flammable, non-explosive, and no environmental pollution due to its absence of organic solvents. However, due to less solvent and low wettability, the adhesion is not as good as the corresponding solvent-based paint, and zinc powder In the coating, due to the poor wettability of zinc powder, zinc powder is easy to settle, which affects product quality