In this study, superhydrophobic films were prepared through a spraying process of carbon nanotube (CNT) suspension on aluminium alloy substrate and characterized by scanning electronic microscope (SEM) contact angles (CAs) and potentiodynamic polarization tests in 0.1 M NaCl solution. Results indicate the positive effect of superhydrophobic film on the CA (>160° ) in comparison with the bare metal due to the high porosity density at the surface caused by the presence of CNTs. The electrochemical observations indicate the presence of a positive shift of E<inf>corr</inf> that confers a better corrosion resistance of the coated samples.

Electrochemical behaviour of superhydrophobic coating fabricated by spraying a carbon nanotube suspension

Luciano G
2015

Abstract

In this study, superhydrophobic films were prepared through a spraying process of carbon nanotube (CNT) suspension on aluminium alloy substrate and characterized by scanning electronic microscope (SEM) contact angles (CAs) and potentiodynamic polarization tests in 0.1 M NaCl solution. Results indicate the positive effect of superhydrophobic film on the CA (>160° ) in comparison with the bare metal due to the high porosity density at the surface caused by the presence of CNTs. The electrochemical observations indicate the presence of a positive shift of Ecorr that confers a better corrosion resistance of the coated samples.
2015
Istituto di Scienze Marine - ISMAR
Al alloy
Potentiodynamic polarization
Superhydrophobicity
Surface coating
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/305455
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