Preparation of thermally and chemically robust superhydrophobic coating from liquid phase deposition and low voltage reversible electrowetting
| Autor: | Pascal Nbelayim, Hisatoshi Sakamoto, Go Kawamura, Atsunori Matsuda, Hiroyuki Muto |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nanotechnology 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Contact angle chemistry.chemical_compound Coating Materials Chemistry Thermal stability Pseudoboehmite Metals and Alloys Surfaces and Interfaces 021001 nanoscience & nanotechnology Superhydrophobic coating 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical engineering chemistry engineering Electrowetting 0210 nano-technology Low voltage Layer (electronics) |
| Zdroj: | Thin Solid Films. 636:273-282 |
| ISSN: | 0040-6090 |
| Popis: | Superhydrophobic surfaces and electrowetting have found applications in many fields. Two of the most desired features in these applications are a robust surface and low voltage actuation electrowetting. A thermally and chemically robust nano-scale superhydrophobic surface was prepared using facile techniques of sol-gel and hot water treatment to obtain rough pseudoboehmite alumina structures; and layer-by-layer coating, using Nafion®, to achieve the hydrophobization. It exhibited a contact angle of 167.2 ± 0.8°; thermal stability of up to 300 °C; stability to acid, base, organic solvents and UV irradiation. Subsequently replacing Nafion® with 1H, 1H, 2H, 2H-perfluorodecyltrimethoxysilane and a conductive Au under layer coating, an extremely low voltage, 3 V, electrowetting and reversible electrowetting were achieved in air and dodecane media, respectively. |
| Databáze: | OpenAIRE |
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