Research Article
Corrosion Inhibition Mechanism of Mild Steel by Amylose-Acetate/Carboxymethyl Chitosan Composites in Acidic Media
Table 1
Electrochemical parameters obtained from polarization measurement in 1.0 M HCl in the presence and absence of a different concentration of AA-CMCh.
| | AA-CMCh (ppm) | Ecorr (mV) (Ag/AgCl) | icorr (µA/cm2) | ßc (mV/dec) | ßa (mV/dec) | Inhibition efficiency (%) |
| | 0 | −641.6 | 4.30 | 164.3 | 164.1 | — | | 100 | −448.0 | 0.52 | 136.6 | 144.3 | 87.94 | | 200 | −396.6 | 0.44 | 193.8 | 105.3 | 89.83 | | 300 | −438.4 | 0.32 | 142.3 | 133.8 | 92.57 | | 400 | −381.8 | 0.10 | 83.1 | 53.9 | 97.65 |
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