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Fluorine-Free Slippery Liquid-Infused Porous Surfaces Prepared Using Hierarchically Porous Aluminum

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Title: Fluorine-Free Slippery Liquid-Infused Porous Surfaces Prepared Using Hierarchically Porous Aluminum
Authors: Inoue, Tomohiro Browse this author
Koyama, Akira Browse this author
Kowalski, Damian Browse this author
Zhu, Chunyu Browse this author
Aoki, Yoshitaka Browse this author
Habazaki, Hiroki Browse this author →KAKEN DB
Keywords: corrosion resistances
porous aluminum surfaces
slippery surfaces
Issue Date: Jul-2020
Publisher: Wiley-Blackwell
Journal Title: Physica status solidi a-applications and materials science
Volume: 217
Issue: 13
Start Page: 1900836
Publisher DOI: 10.1002/pssa.201900836
Abstract: Slippery liquid-infused porous surfaces (SLIPS) have been receiving increased attention. Fluorinated compounds have been used to prepare SLIPS, but because of bioaccumulation and ecological impact of perfluoroalkyl building blocks, the fluorine-free SLIPS (F-free SLIPS) system is preferable for practical applications. Herein, SLIPS are prepared from a hierarchically porous aluminum substrate, tetradecylphosphonic acid monolayer coating, and silicone lubricant oil. The several properties of the SLIPS, including durability against lubricant loss, ice adhesion, and corrosion resistance, are compared with those with a fluoroalkyl monolayer coating and fluorinated lubricant oil. The findings demonstrate that the F-free SLIPS show higher durability against the removal of lubricant in air and also in water. Both fluorinated SLIPS (F-SLIPS) and F-free SLIPS samples exhibit extremely reduced ice adhesion compared with superhydrophobic surfaces obtained using the same hierarchically porous aluminum substrate with fluorinated or fluorine-free monolayer coating. The SLIPS samples have very high corrosion resistance in NaCl solution but not in alkaline solution. The solution-dependent corrosion resistance is discussed in terms of the stability of monolayer coating.
Rights: This is the peer reviewed version of the following article: Inoue, T., Koyama, A., Kowalski, D., Zhu, C., Aoki, Y. and Habazaki, H. (2020), Fluorine‐Free Slippery Liquid‐Infused Porous Surfaces Prepared Using Hierarchically Porous Aluminum. Phys. Status Solidi A, 217: 1900836, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 幅崎 浩樹

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