In Situ Fabrication of One-Dimensional-Based Lotus-Like Silicone/ϒ-Al2 O3 Nanocomposites for Marine Fouling Release Coatings

Selim, Mohamed S., Shenashen, Mohamed A., Fatthallah, Nesreen A., Elmarakbi, Ahmed and El-Safty, Sherif A. (2017) In Situ Fabrication of One-Dimensional-Based Lotus-Like Silicone/ϒ-Al2 O3 Nanocomposites for Marine Fouling Release Coatings. ChemistrySelect, 2 (30). pp. 9691-9700. ISSN 2365-6549

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Abstract

Prohibition on the utilization of organotins compounds in antifouling (AF), and Fouling release (FR) paints have attracted considerable ineptest as an environmentally friendly alternative. In this work, an ecofriendly series of lotus-like nano-structured organic-inorganic surfaces based on vinyl terminated polydimethylsiloxane (PDMS)/ϒ-Al2O3 nanorods composites were successfully modeled for the first time via in-situ technique. The tailored nanocomposites were cured via hydrosilation mechanism and applied for marine FR coatings. Incorporation of various concentrations of controlled 1D nanofillers was inevitable to study the structure property relationship. Mechanical tests, durability parameters, and the FR and biological inertness were assessed. The results confirmed that uniform distribution of the prepared ϒ-Al2O3 nanorods dramatically improved their water repellency, homogenous topology, self-cleaning and fouling repellency. With nanofiller insertion up to 0.5% nanofillers, a particular increase in the contact angle (CA), decrease in the surface free energy (SFE), and topological homogeneity was observed with improving phsico-mechanical, and durability against UV properties. The biological assessments indicated excellent inhibition and superior AF potential of the 0.5% nanofiller composite coatings. Our finding introduces attractive merits such as simplicity, ecofriendly, economic feasibility, and potential application in marine FR nano-coatings.

Item Type:	Article
Uncontrolled Keywords:	Bacterial progenies, Environmentally friendly, Fouling release, lotus-like, nanocomposites
Subjects:	H300 Mechanical Engineering J500 Materials Technology not otherwise specified
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Paul Burns
Date Deposited:	05 Oct 2018 15:24
Last Modified:	11 Oct 2019 19:01
URI:	http://nrl.northumbria.ac.uk/id/eprint/36097

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