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Showing 1 to 11 of 11 for “"omniphobic"”.
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Transparent Omniphobic Coatings that are Flexible and Wear Resistant
Omniphobic or anti-smudge surfaces require good mechanical durability to ensure that they are suitable for practical applications. In general, the abrasion resistance of a surface depends on its hardness. However, when a coating is very hard, it is usually brittle and lacks flexibility. New coating …
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Functionalized silicone composites: omniphobic coatings, microspheres and plastic explosives
… the successful fabrication of a sprayable omniphobic coating that contains a polydimethylsiloxane binder and nanoparticle ZnO. A coating, or any other surface, is considered omniphobic if it is both water-repellent (i.e. hydrophobic) and oil-repellant (i.e. oleophobic). The coating herein …
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A study of static and dynamic robustness of hydro/omniphobic surfaces
Liquid droplets in the Cassie-Baxter state form liquid-air interfaces that are not flat but distorted due to pressure differences across the interfaces between the asperities. These distorted interfaces play an essential role in the transition from the composite Cassie-Baxter state to the …
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Designing liquid repellent surfaces for fabrics, feathers and fog
Omniphobicity refers to a property of surfaces which are not wetted by water, oils, alcohols and other low surface tension liquids. Robust omniphobic surfaces can be applied in many areas including fabrics with chemical / biological protection and dirt / fingerprint resistant touch screens. The …
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Self-Replenishing, Wear-Resistant and Anti-Sticking Surfaces Based on Liquid Impregnation of Microstructured Mesoporous α-AI₂O₃ [Alpha Alumina] Matrices
Fabrication of wear-resistant omniphobic surfaces is a persistent scientific challenge and essential for various applications such as in paint industries, fluid transport, antifouling, reduction of friction drag on ship hulls, and stain resistant textiles. However, there are very limited efforts to …
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Harnessing <i>Haloferax mediterranei</i> for Bioplastic Production from Organic Waste
… using hydrophobic deep eutectic solvents with omniphobic membranes, and kinetic-affinity relationships guided the separation design. To bypass VFA purification needs, in-situ VFAs produced from arrested anaerobic digestion (aAD) were also tested, showing that H. mediterranei can efficiently …
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Exploiting Interfacial Phenomena to Expel Matter from its Substrate
… but also has applications in self-cleaning, omniphobic surfaces and phase-change heat transfer. Although there is a renewed interest in the design of robust functional surfaces which can passively remove highly viscous liquids or dew, or retard ice accretion or frost formation, the physics of …
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Multiphase Interfacial Phenomena for Liquid Manipulation and Defrosting
… for applications in health, defrosting, and omniphobic surfaces. In Chapters 1 and 2, relevant background information and goals are provided to contextualize the research being presented in this dissertation. Chapter 3 introduces a novel metal-free alternative to conventional antiperspirants …
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Droplet repellency of microfabricated surfaces in saturated environments
This thesis reports changes in apparent contact angles for droplets of various liquids on microstructured surfaces in saturated environments. Micro scale pillar surfaces maintain the non-wetting Cassie-Baxter regime for drops of water over a range of saturation temperatures while micro scale …
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Anti-fouling interfaces for energy applications
… we develop methodologies to deposit slippery omniphobic covalently attached liquids (SOCAL) on arbitrary substrates. Similar to lubricant-based surfaces, SOCAL has ultra-low roughness and surface energy, enabling low nucleation rates, and eliminating the need to replenish the lubricant. To …
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Surface micro/nano structuring and functionalization for phase change heat transfer enhancement
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01