The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform
Ullrich Steiner - One of the best experts on this subject based on the ideXlab platform.
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super hydrophobic surfaces made from teflon
Soft Matter, 2007Co-Authors: Pieter Van Der Wal, Ullrich SteinerAbstract:Super-hydrophobic surfaces are typically made by introducing roughness into a surface made from a water-repellent material. Water easily rolls or bounces off these surfaces, carrying away most surface contaminants. We describe here a simple low-cost approach using a commercially available Teflon® suspension for forming an Ultrahydrophobic Coating. By using sacrificial colloids, a surface with an array of well-defined depressions is created, giving rise to a very low wettability by water, showing a contact angle of ≈170°.
Pieter Van Der Wal - One of the best experts on this subject based on the ideXlab platform.
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super hydrophobic surfaces made from teflon
Soft Matter, 2007Co-Authors: Pieter Van Der Wal, Ullrich SteinerAbstract:Super-hydrophobic surfaces are typically made by introducing roughness into a surface made from a water-repellent material. Water easily rolls or bounces off these surfaces, carrying away most surface contaminants. We describe here a simple low-cost approach using a commercially available Teflon® suspension for forming an Ultrahydrophobic Coating. By using sacrificial colloids, a surface with an array of well-defined depressions is created, giving rise to a very low wettability by water, showing a contact angle of ≈170°.
Mathur Sanjay - One of the best experts on this subject based on the ideXlab platform.
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High-Temperature Ultrahydrophobic Ceramic Coatings from Surface-Functionalized MgAl(2)O(4)Nanoparticles
'Wiley', 2024Co-Authors: Schmidt-verma, Anna K., Renner, Alexander M., Wilhelm Michael, Bohr Christoph, Goenuellue Yakup, Rudigier-voigt Eveline, Mathur SanjayAbstract:Innovative Coatings that can shield functional surfaces from environmental and temperature impact are essential to increase the life time of devices and reduce the maintenance costs. Superhydrophobic ceramic Coatings with self-cleaning properties and stability at high-temperatures (up to 300 degrees C) are eco-friendly alternative to aggressive surface-cleaning agents. Despite the wide range of possible applications for hydrophobic surfaces, the practical implementation of currently used polymeric fluoro-silanes is restricted by their low thermal stability, which is an essential figure of merit. Herein, a nonadhesive Coating with an exceptionally low surface-energy (contact angle approximate to 180 degrees) is developed by chemical conjugation of MgAl(2)O(4)spinel nanoparticles (NPs) with perfluorodecyltrichlorosilane (FDTS). The cross-conjugation of FDTS and MgAl(2)O(4)is substantiated by condensation reactions between the surface-rooted hydroxyl groups and chloride ligands of fluorosilane. Compared with the Coatings based on pure fluorosilanes, the FDTS@MgAl(2)O(4)core-shell particles unify optical transparency and high-temperature stability imparted by spinel reinforcement with the superhydrophobicity induced by FDTS periphery. Addition of TiO(2)NPs to MgAl(2)O(4)sol unifies the Ultrahydrophobicity of FDTS@MgAl(2)O(4)with UV-absorption properties of TiO(2)to produce a new UV- and temperature-resistant Ultrahydrophobic Coating system
Schmidt-verma, Anna K. - One of the best experts on this subject based on the ideXlab platform.
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High-Temperature Ultrahydrophobic Ceramic Coatings from Surface-Functionalized MgAl(2)O(4)Nanoparticles
'Wiley', 2024Co-Authors: Schmidt-verma, Anna K., Renner, Alexander M., Wilhelm Michael, Bohr Christoph, Goenuellue Yakup, Rudigier-voigt Eveline, Mathur SanjayAbstract:Innovative Coatings that can shield functional surfaces from environmental and temperature impact are essential to increase the life time of devices and reduce the maintenance costs. Superhydrophobic ceramic Coatings with self-cleaning properties and stability at high-temperatures (up to 300 degrees C) are eco-friendly alternative to aggressive surface-cleaning agents. Despite the wide range of possible applications for hydrophobic surfaces, the practical implementation of currently used polymeric fluoro-silanes is restricted by their low thermal stability, which is an essential figure of merit. Herein, a nonadhesive Coating with an exceptionally low surface-energy (contact angle approximate to 180 degrees) is developed by chemical conjugation of MgAl(2)O(4)spinel nanoparticles (NPs) with perfluorodecyltrichlorosilane (FDTS). The cross-conjugation of FDTS and MgAl(2)O(4)is substantiated by condensation reactions between the surface-rooted hydroxyl groups and chloride ligands of fluorosilane. Compared with the Coatings based on pure fluorosilanes, the FDTS@MgAl(2)O(4)core-shell particles unify optical transparency and high-temperature stability imparted by spinel reinforcement with the superhydrophobicity induced by FDTS periphery. Addition of TiO(2)NPs to MgAl(2)O(4)sol unifies the Ultrahydrophobicity of FDTS@MgAl(2)O(4)with UV-absorption properties of TiO(2)to produce a new UV- and temperature-resistant Ultrahydrophobic Coating system
Renner, Alexander M. - One of the best experts on this subject based on the ideXlab platform.
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High-Temperature Ultrahydrophobic Ceramic Coatings from Surface-Functionalized MgAl(2)O(4)Nanoparticles
'Wiley', 2024Co-Authors: Schmidt-verma, Anna K., Renner, Alexander M., Wilhelm Michael, Bohr Christoph, Goenuellue Yakup, Rudigier-voigt Eveline, Mathur SanjayAbstract:Innovative Coatings that can shield functional surfaces from environmental and temperature impact are essential to increase the life time of devices and reduce the maintenance costs. Superhydrophobic ceramic Coatings with self-cleaning properties and stability at high-temperatures (up to 300 degrees C) are eco-friendly alternative to aggressive surface-cleaning agents. Despite the wide range of possible applications for hydrophobic surfaces, the practical implementation of currently used polymeric fluoro-silanes is restricted by their low thermal stability, which is an essential figure of merit. Herein, a nonadhesive Coating with an exceptionally low surface-energy (contact angle approximate to 180 degrees) is developed by chemical conjugation of MgAl(2)O(4)spinel nanoparticles (NPs) with perfluorodecyltrichlorosilane (FDTS). The cross-conjugation of FDTS and MgAl(2)O(4)is substantiated by condensation reactions between the surface-rooted hydroxyl groups and chloride ligands of fluorosilane. Compared with the Coatings based on pure fluorosilanes, the FDTS@MgAl(2)O(4)core-shell particles unify optical transparency and high-temperature stability imparted by spinel reinforcement with the superhydrophobicity induced by FDTS periphery. Addition of TiO(2)NPs to MgAl(2)O(4)sol unifies the Ultrahydrophobicity of FDTS@MgAl(2)O(4)with UV-absorption properties of TiO(2)to produce a new UV- and temperature-resistant Ultrahydrophobic Coating system
