CHEN De-ying, YIN Yan-sheng, CHENG Sha, CHEN Shou-gang, LIU Tong. Inhibition of Carboxymenthylchitosan to Corrosion of Aluminum in Acidic Solution[J]. Development and Application of Materials, 2009, 24(2): 55-59. DOI: 10.19515/j.cnki.1003-1545.2009.02.014
Citation: CHEN De-ying, YIN Yan-sheng, CHENG Sha, CHEN Shou-gang, LIU Tong. Inhibition of Carboxymenthylchitosan to Corrosion of Aluminum in Acidic Solution[J]. Development and Application of Materials, 2009, 24(2): 55-59. DOI: 10.19515/j.cnki.1003-1545.2009.02.014
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Inhibition of Carboxymenthylchitosan to Corrosion of Aluminum in Acidic Solution

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  • Carboxymenthylchitosan(CM-chitosan) is an important and friendly environmental derivative.Inhibition of carboxymenthylchitosan the corrosion of aluminum in 1 mol/L HCl was investigated with gravimetric and electrochenical tests.The results reveal that this compound is a very good inhibitor and behaves better in 1 mol/L HCl solutions,and the highest efficiency of 88.54% is achieved when the concentration of the CM-chitosan is 200mg/L.In 1mol/L HCl solutions,the adsorption of CM-chitosan on the aluminum surface follows a modified Langmuir adsorption isotherm and some important thermodynamic parameters ΔGo,ΔHo and ΔSo are abtained.
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