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Anti-biofouling superhydrophobic surface fabricated by picosecond laser texturing of stainless steel

Résumé : Anti-biofouling technology is based on specifically designed materials and coatings. This is an enduring goal in the maritime industries, such as shipping, offshore oil exploration, and aquaculture. Recently, research of the relationship between wettability and antifouling effectiveness has attracted considerable attention, due to the anti-biofouling properties of the lotus leaf and shark skin. In this study, super-hydrophobic surfaces (SHSs) with controllable periodic structures were fabricated on AISI304 stainless steel by a picosecond laser, and their anti-biofouling performance were investigated by seawater immersion for five weeks in summertime. The results showed that the specimens with SHS demonstrate significant anti-biofouling effect as compared with the bare stainless steel plate. We observed that nearly 50% decrease of the average microbe attachment area ratio (Avg. MAAR) could be obtained. The micro-groove SHS with more abundant hierarchical micro-nano structures showed better anti-biofouling performance than the micro-pit SHS.
Domaine de référence : Antifouling
Auteur Sun Ke, Yang Huan, Xue Wei, He An, Zhu Dehua, Liu Wenwen, Adeyemi Kenneth, Cao Yu
Année de parution : 2018.
Mots-clés : Anti-biofouling, Laser ablation, Laser induced surface hierarchical micro-nano structures, Stainless steel, Superhydrophobic surface.
Type de document : Article de revue.
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Ce projet est financé par le Fonds Européen de Développement Régional, la Région Normandie et le Conseil Départemental de la Manche.