The Influence of Chitosan Biopolymer on Aluminum Corrosion Resistance in Chloride Ions Environment

被引：2
|
作者：
Cojocaru, Anca [1 ]
Maior, Ioana [1 ]
Ciobotaru, Ioana Alina [1 ]
Vaireanu, Danut-Ionel [1 ]
机构：
[1] Fac Appl Chem & Mat Sci, Dept Inorgan Chem Phys Chem & Electrochem, 1-7 Gh Polizu St, Bucharest 011061, Romania
来源：
MACROMOLECULAR SYMPOSIA | 2021年 / 396卷 / 01期
关键词：
aluminum; chitosan; corrosion resistance; PROTECTION; ALLOY;
D O I：
10.1002/masy.202000317
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The paper presents preliminary studies of the corrosion behavior in NaCl solution of a composite made up of a conversion coating of alumina obtained by sulphuric anodization and chitosan biopolymer. The results obtained from the electrochemical studies (potentiodynamic polarization, electrochemical impedance spectroscopy) indicate a decrease of the corrosion current density for alumina-chitosan composite and a corrosion resistance improvement comparing to untreated aluminum. The presence of the alumina-chitisan composite stabilizes the passivation behavior of the anodized samples due to the sealing of the alumina pores with chitosan biopolymer.
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页数：3
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