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Nanotechnology to Improve the Performances of Hydrodynamic Surfaces
* 1 , 2 , 3 , 1
1  IEMN-DOAE, UPHF, Valenciennes, France
2  LMCPA, UPHF, Maubeuge, France
3  LAMIH, UPHF, Valenciennes, France

Abstract:

The nature continues to inspire scientists to adapt solutions in order to satisfy the human needs and attain unreachable performances with new technologies. In this study, the super-hydrophobicity of the Lotus leaf is our source of inspiration. The duplication of this natural phenomenon may enhance the maritime metallic surfaces corrosion and its mechanical friction. In our case, we are investigating super-hydrophobic maritime surfaces using a simple, low cost and scalable coating method. A hydrothermal method is used to create zinc oxide (ZnO) nanorods (NRs) and an evaporation method to apply the Octadecyltrimethoxysilane (ODS). At the end, the super-hydrophobic surface (SHS) is obtained on a maritime aluminum substrate coated by a commercial epoxy paint. The characterization of our SHS gives high water contact angle (WCA) and small sliding angle (SA) of water droplets on the treated surface. We have raised the WCA of the epoxy painted aluminum surface from 98° to more than 152° and reduce the SA of 46° to lower than 7°. We have also studied the sliding speed (SS) that have been largely raised from 0.04 m s−1 in the epoxy case to 1.3 m s−1 after treatment.

Keywords: super-hydrophobic surfaces; nanotechnology; nanorods; ZnO; water contact angle; sliding angle; sliding speed; hydrodynamic surfaces; epoxy paint
Comments on this paper
Yasser Abdel Maguid
Very inspiring


Bandar Alshehri
congratulations
Great work with applied results.

Eid ALQAHTANI
Great results
Another great application of nanotechnology that will help creating solutions to reduce the impact of corrosion.

Mohammad ALFAHADI
Impressive! Congratulations,
Looking forward to see those great results implemented into naval industrial production.

Enad Al Balawie
congratulations
Promising results, thank you for participation to the future of science

Nasser Alquhtani
excellent
excellent work

Nasser Alquhtani
congratulations
excellent work

EL DOGHECHE
Shipping Technologies
Innovative Research in Maritime Field

Sure, should be the opportunity to apply Nanotechnology for improving hydrodynamic performances as well as reducing the fouling, the corrosion...

bravo Ali

Saad Almutairi
Congratulations
Great work
Congratulations

karim karim
Karim
good carry out

Hussain Khosaf
Congratulations
Waiting to see this innovation be applied ASAP, efforts considered and results great .

Denis Rémiens
very good work
CONGRATULATIONS

Ismet ILYAS
Bravo
Congratulation!
Innovative research. Excellent work Ali et.all

Cheers,

champagne philippe
Congratulations
These results are very encouraging and provide a credible way for more environmentally friendly alternatives in order to optimize the performance of metals placed in the marine environment. Congratulations to Ali for this rigorous work that opens up research possibilities !

Didi Istardi
Good Job
Congratulation,

It is interesting subject. The result show the another way to protect metal from corrosion in ship. I wait the next step of this result.

Didi Istardi
Good Job
Congratulation,

It is interesting subject. The result show the another way to protect metal from corrosion in ship. I wait the next step of this result.



 
 
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