| 초록 |
Superhydrophobicity generally refers to surfaces with water contact angle (θ) larger than 150°. Fabrication of superhydrophobic surfaces has become a rapidly expanding area of research over the last few years, primarily due to their excellent self-cleaning ability. The two main factors to be considered for design of such surfaces are the chemical composition and physical structure. In this work we successfully prepared superhydrophobic surfaces with transparency and durability. The coatings were produced by successive growth of silica and iron oxide nanoneedles onto polyelectrolyte-coated surfaces, following treatment of chemicals with low surface free energy. The structure of surface was characterized by SEM and the hydrophobicity was confirmed by measurement of water contact angles. We believe this kind of superhydrophobic structures would have wide variety of applications in daily life, industry, as an environmentally friendly water-repellent substitute for fluorine compounds. |
