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Fabrication of biomimetic slippery liquid‐infused porous surface on 5086 aluminum alloy with excellent antifouling performance
Author(s) -
Yang Zongcheng,
He Xiaoyan,
Chang Jiangfan,
Bai Xiuqin,
Cao Pan,
Yuan Chengqing
Publication year - 2021
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6894
Subject(s) - biofouling , materials science , contact angle , porosity , fabrication , chemical engineering , nanotechnology , lubricant , layer (electronics) , phaeodactylum tricornutum , lubrication , surface energy , composite material , chemistry , membrane , medicine , biochemistry , alternative medicine , botany , pathology , engineering , biology , diatom
Biofouling triggers extensive research in ship tribology. Antifouling technology has garnered great attention as a solution for biofouling; thus, biomimetic lubricant‐infused surfaces are developed as alternatives to superhydrophobic surfaces. In this study, we developed slippery liquid‐infused porous surfaces (SLIPS) by infusing perfluoropolyether oil into porous anodic aluminum oxide (AAO) surfaces using a vacuum impregnation device. The oil settled firmly in the AAO surfaces owing to the strong capillary forces in the pores, thus forming a lubricating layer with a low contact angle hysteresis and long‐term slippery condition. SLIPS exhibited an excellent antifouling performance by reducing 98.4% of Phaeodactylum tricornutum . The coefficient of biofilm formed by the microorganisms was also investigated. The results confirmed that the lubricating layer impeded the formation of biofilm. This research provides valuable information for the fabrication of SLIPS and its antifouling mechanism.