Next Article in Journal
Strategies of Broadband Monitoring Aimed at Minimizing Deposition Errors
Previous Article in Journal
A Review on Conducting Polymers and Nanopolymer Composite Coatings for Steel Corrosion Protection
Open AccessArticle

Nanotechnology to Improve the Performances of Hydrodynamic Surfaces

1
Université Polytechnique Hauts-de-France, IEMN-DOAE CNRS, F-59313 Valenciennes, France
2
Université Polytechnique Hauts-de-France, LMCPA, F-59600 Maubeuge, France
3
Université Polytechnique Hauts-de-France, LAMIH CNRS, F-59313 Valenciennes, France
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(12), 808; https://doi.org/10.3390/coatings9120808
Received: 17 September 2019 / Revised: 24 November 2019 / Accepted: 25 November 2019 / Published: 1 December 2019
(This article belongs to the Section Surface Characterization, Deposition and Modification)
Nature continues to inspire scientists to adapt solutions in order to satisfy human needs, mainly in the maritime domain with metallic surface corrosion and its mechanical friction. In this research, the source of innovation comes from the lotus leaf and its well-known super-hydrophobicity. In this study, we have investigated the lotus leaf as a model for a super-hydrophobic maritime surface. The hydrothermal technique, which is considered to be a simple, low-cost, and scalable coating method, is applied to create zinc oxide (ZnO) nanorods (NRs), and an evaporation method is used to apply octadecyltrimethoxysilane (ODS). We apply such eco-green coatings onto commercial epoxy paints. Superhydrophobic surfaces (SHS) are obtained on maritime aluminum substrates. The characterization of SHS indicates improved behavior of water droplets on the treated surface: higher water static contact angles (WCA) from 98° to more than 152° and reduced sliding angles (SA) from 46° to 7°. Sliding speeds (SS) have been largely raised from 54 in the epoxy case to 1300 mm·s−1 after treatment. These results clearly demonstrate the real opportunity to apply ZnO-based nanomaterials onto existing commercial maritime coatings.
Keywords: superhydrophobic surfaces; nanotechnology; nanorods; ZnO; water contact angle; sliding angle; sliding speed; hydrodynamic surfaces; epoxy paint superhydrophobic surfaces; nanotechnology; nanorods; ZnO; water contact angle; sliding angle; sliding speed; hydrodynamic surfaces; epoxy paint
MDPI and ACS Style

Alshehri, A.; Champagne, P.; Keirsbulck, L.; Dogheche, E.H. Nanotechnology to Improve the Performances of Hydrodynamic Surfaces. Coatings 2019, 9, 808.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop