Preparation of inorganic-polymer nano-emulsion inhibitor for corrosion resistance of steel reinforcement for concrete

Abstract

In this work, the effect of inorganic–organic corrosion inhibitor composition on corrosion inhibition rate was studied through electrochemical accelerated corrosion experiments and ambient atmosphere corrosion experiments. The corrosion inhibitor performance was analyzed to establish the relationship between inhibitor composition, steel temperature, inhibitor temperature, treatment time and corrosion inhibition rate. The effect of nano-emulsion type on the corrosion inhibition rate of reinforcing steel shows that different types of nano-emulsions can increase the self-corrosion potential and reduce the corrosion current of reinforcing steel, improving the corrosion resistance of reinforcing steel. The highest corrosion inhibition rate of 72.1% could be achieved with the addition of fluorocarbon nano-emulsion DF-1 to the corrosion inhibitor. This indicates that among the studied polymer nano-emulsions, fluorocarbon nano-emulsion DF-1 is the best polymer nano-emulsion corrosion inhibitor with a better content of 5%.