4-aminoazobenzene modified natural glucomannan as a green eco-friendly inhibitor for the mild steel in 0.5 M HCl solution

Add time:09/02/2019    Source:sciencedirect.com

The corrosion inhibition effect of a green eco-friendly 4-aminoazobenzene modified natural glucomannan (GL-PA) on the corrosion protection of mild steel in 0.5 M HCl solution is investigated by electrochemical measurements and surface characterization. The results show that the GL-PA acts as a mixed-type inhibitor and can provide effective corrosion inhibition for mild steel. The corrosion inhibition is achieved by the chemical as well as physical adsorption of the GL-PA on the surface of the mild steel, and the adsorption fairly obeys the Langmuir isotherm.

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