boosting the impact of cinnamaldehyde-contained polymer microemulsion on the corrosion of c1018 alloy in an acidic medium

The corrosion and related limitations are the detriment of steel equipment installed in the wells which limits the useful life of the equipment and reuse their use in future wells. in this work a new type of environmentally friendly acid corrosion inhibitor composition based on the cinnamaldehyde-contained poly(methyl methacrylate) nanocolloid with a unique combination of cinnamaldehyde as a filming additive, and an organo-sulfur compound for petroleum wells and water wells subjected to stimulation with acid solutions is presented. cinnamaldehyde-contained poly(methyl methacrylate) nanocolloid was prepared in microemulsion system and characterized with dynamic light scattering (dls) and zeta potential analysis. the new acid corrosion inhibitor with enhanced performance by a synergistic action between the cinnamaldehyde/ organo-sulfur compound and poly(methyl methacrylate) nanoparticles provide a fewer instances of pitting and also reduced rate of corrosion than previous inhibitors which include cinnamaldehyde alone. the anti-corrosion performance was performed on the c1018 alloy surface based on the gravimetric analysis using corrosion rate measurement with the decrease in metal weight during the reference time period. the experimental results based on the afm analysis shows that the cinnamaldehyde molecule’s adsorption on an alloy surface in 15% hcl align. the anti-corrosion performance data confirmed that the developed inhibitor exhibited more than 95% (using 4 wt.% of inhibitor) corrosion inhibition efficiency in 4% and 15% aqueous hcl at 303-343 k.