Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 207, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2021.112003
Keywords
Erucamide; Polydimethylsiloxane; Surface coating; Marine anti-biofouling
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The study proposes a new eco-friendly EP coating technology with anti-biofouling and drag reduction effects, showing superior performance compared to the existing OP coating.
Marine biofouling of ship hulls and ocean structures causes enormous economic losses due to increased frictional drag. Thus, efforts have been exerted worldwide to eliminate biofouling. In addition, a strong demand exists for the development of a cost-effective and eco-friendly anti-biofouling coating technology. Thus, erucamidepolydimethylsiloxane (EP) coating is proposed in this study. EP exhibits a hydrophobic surface as the erucamide content and drag reduction effect increase. In this study, the drag reduction effect of the EP 2.5 is better than that of glass and polydimethylsiloxane (PDMS) surfaces. Moreover, the proposed EP coatings are observed to prevent the biofouling induced by bacteria (E. coli) and brown algae (Cladosiphon sp.). In addition, through a marine field test, the anti-biofouling effect of the EP surface is found to be better than the previously studied oleamide-PDMS (OP) surface. In the marine field test, the EP 2.5 demonstrates superior anti-biofouling performance for 5.5 months under real marine environment. The proposed eco-friendly EP coating method could be applicable to marine vehicles that require effective drag reduction and anti-biofouling properties.
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