Superoleophobic Surfaces from Nanomaterials or Nanostructures
A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".
Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 2243
Special Issue Editors
Interests: wettability; functional coatings; colloids and interfaces; environmental functional materials
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Superoleophobic surfaces are defined as surfaces that have contact angles larger than 150° and sliding angles lower than 10° for various oil droplets with low surface tension. For decades, superoleophobic surfaces obtained through biomimetic techniques have triggered giant billows in the field of nanomaterials. In the beginning, inspired by the natural oil-repellency of leafhoppers and springtails, researchers utilize re-entrant structures (locked air cushion) and low-surface-energy substances (mainly fluorinated compounds) to fabricate superoleophobic surfaces in air. Later, fish scale provided another preparation strategy for underwater superoleophobic surfaces by utilizing superhydrophilicity (locked water cushion) in the air. Nanomaterials and nanostructures can enhance the effect of air or water cushioning between oil and surfaces by stacking to form multi-scale rough structures. At the same time, a low/extreme-surface-energy state can be achieved by chemical modification of nanomaterials. To date, a wide range of multifunctional artificial superoleophobic surfaces have been fabricated, with promising applications in fundamental research and industrial applications such as oil proofing, self-cleaning, chemical shielding, anti-blocking, chemical shielding, anti-corrosion, oil–water separation and droplet manipulation.
The present Special Issue aims to introduce the latest progress in superoleophobic surfaces. Since 2007, as the research on the oil repellency mechanisms of superoleophobic surfaces has gradually deepened, potential strategies including but not limited to self-similar structures, protective micron skeletons, binders, as well as hydrogen and chemical bonding have been gradually proposed and have significantly improved the robustness and durability of superoleophobic coatings. In the present Special Issue, we have invited contributions from leading groups in the field with the aim of giving a balanced view of the current state-of-the-art research in this discipline.
Prof. Dr. Youfa Zhang
Prof. Dr. Junping Zhang
Guest Editors
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Keywords
- superoleophobic
- nanomaterials or nanostructures
- re-entrant structures
- low-surface-energy substances
- fundamental research
- multifunctional
- bioengineering
- industrial applications
- robustness and durability
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