Effective Harmful Organism Management I: Fabrication of Facile and Robust Superhydrophobic Coating on Fabric

Chang-Ho Choi, Yeongwon Kwak, Min Kyung Kim and Dong Gun Kim
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Chang-Ho Choi: Department of Chemical Engineering, Gyeongsang National University, Jinju 52828, Korea
Yeongwon Kwak: Department of Chemical Engineering, Gyeongsang National University, Jinju 52828, Korea
Min Kyung Kim: Department of Bio & Environment Technology, Seoul Women’s University, Seoul 01797, Korea
Dong Gun Kim: Smith College of Liberal Arts, Sahmyook University, Seoul 01795, Korea

Sustainability, 2020, vol. 12, issue 15, 1-9

Abstract: Advances in harmful organism management are highly demanding due to the toxicity of conventional coating approaches. Exploiting biomimetic superhydrophobicity could be a promising alternative on account of its cost-effectiveness and eco-friendliness. Here, we introduce a facile method to fabricate a robust superhydrophobic coating on a fabric substrate. This is achieved by sequentially spraying TiO 2 -epoxy resin nanocomposite material and fluorocarbon-silane modified SiO 2 nanoparticles (FC-silane SiO 2 NPs). The superhydrophobicity is attributed to the nanoparticles constituting a micro/nano hierarchical structure and the fluorocarbon of the modified SiO 2 NPs lowering the surface energy. The epoxy resin embedded in the coating layer plays an important role in improving the robustness. The robustness of the superhydrophobic surface is demonstrated by measuring the water slide angle of surfaces that are subject to salty water at 500 rpm stirring condition for up to 13 days. This study focuses on ensuring the superhydrophobicity and robustness of the coating surface, which is preliminary work for the practical management of macrofoulers. Based on this work, we will perform practical harmful organism management in seawater as a second research subject.

Keywords: superhydrophobic; fabric substrate; robustness; fluorocarbon-silane modified SiO 2 NPs (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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