anticorrosion study based on the film formed by a green nano-assembled aspartic amino acid-reinforced polysaccharide monolayer; thermodynamic study

This work is intended to introduce a novel combination of aspartic amino acid and polysaccharide, which both act as corrosion inhibitors. here, a corrosion inhibitor composition prepared by a cationic cetyltrimethylammonium bromide surfactant (ctab) based-colloid system and an anticorrosion film formed by a nano-assembled aspartic-reinforced polysaccharide monolayer on the aluminum substrate surface were investigated. the complex dynamics of ionic interactions in aspartic acid in modulating micellization of ctab and their impact on surfactant behavior in ctab/aspartic amino acid systems is a highlight and novelty of this work and is characterized by dls analysis. this discussion is believed to provide a framework to facilitate a better understanding of particular aspects of the corrosion limitations. the obtained results of the anti-corrosion study reveal that the corrosion inhibitor prepared based on the ctab colloid solution system has high performance compared to the bulk of aspartic acid and polysaccharide. the effect of temperature and inhibitor concentration were investigated and based on the surface coverage (θ), the equilibrium constant of adsorption (k), the standard free energy (δg°ads), the standard enthalpy (δh°ads), and the entropy of adsorption (δs°ads) were calculated.