Chitosan coatings crosslinked with genipin for corrosion protection of AZ31 magnesium alloy sheets

Chitosan coatings crosslinked with genipin for corrosion protection of AZ31 magnesium alloy sheets Carbohydrate Polymers 181 (2018) 71–77 Contents lists available at ScienceDirect Carbohydrate Polymers journal homepage: www.elsevier.com/locate/carbpol Research Paper Chitosan coatings crosslinked with genipin for corrosion protection of AZ31 magnesium alloy sheets a, b b c Ludmila de Y. Pozzo , Thiago F. da Conceição , Almir Spinelli , Nico Scharnagl , Alfredo T.N. Pires Department of Materials Engineering, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil Department of Chemistry, PGMAT, Federal University of Santa Catarina, 88040-970 Florianópolis, SC, Brazil Helmholtz-Zentrum Geesthacht GmbH, Institute of Materials Research, Magnesium Innovations Centre – MagIC, Max-Planck-Str. 1, D-21502 Geesthacht, Germany ARTICLE I NFO ABSTRACT Keywords: In this study, coatings of chitosan crosslinked with genipin were prepared on sheets of AZ31 magnesium alloy Magnesium alloys and their corrosion protection properties were characterized by means of potentiodynamic polarization and Chitosan electrochemical impedance spectroscopy (EIS). The coatings were also characterized by means of FTIR and XPS. Polymer coating It was observed that the crosslinking process decreases the corrosion current and shifts the corrosion potential of Genipin the alloy to less negative values. The EIS analysis demonstrated that the crosslinking process increases the maximum impedance after short and long exposure times. The superior performance of the crosslinked http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Carbohydrate Polymers Elsevier

Chitosan coatings crosslinked with genipin for corrosion protection of AZ31 magnesium alloy sheets

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0144-8617
D.O.I.
10.1016/j.carbpol.2017.10.055
Publisher site
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Abstract

Carbohydrate Polymers 181 (2018) 71–77 Contents lists available at ScienceDirect Carbohydrate Polymers journal homepage: www.elsevier.com/locate/carbpol Research Paper Chitosan coatings crosslinked with genipin for corrosion protection of AZ31 magnesium alloy sheets a, b b c Ludmila de Y. Pozzo , Thiago F. da Conceição , Almir Spinelli , Nico Scharnagl , Alfredo T.N. Pires Department of Materials Engineering, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil Department of Chemistry, PGMAT, Federal University of Santa Catarina, 88040-970 Florianópolis, SC, Brazil Helmholtz-Zentrum Geesthacht GmbH, Institute of Materials Research, Magnesium Innovations Centre – MagIC, Max-Planck-Str. 1, D-21502 Geesthacht, Germany ARTICLE I NFO ABSTRACT Keywords: In this study, coatings of chitosan crosslinked with genipin were prepared on sheets of AZ31 magnesium alloy Magnesium alloys and their corrosion protection properties were characterized by means of potentiodynamic polarization and Chitosan electrochemical impedance spectroscopy (EIS). The coatings were also characterized by means of FTIR and XPS. Polymer coating It was observed that the crosslinking process decreases the corrosion current and shifts the corrosion potential of Genipin the alloy to less negative values. The EIS analysis demonstrated that the crosslinking process increases the maximum impedance after short and long exposure times. The superior performance of the crosslinked

Journal

Carbohydrate PolymersElsevier

Published: Feb 1, 2018

References

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