Artículos de revistas
Design and fabrication of superhydrophobic surfaces formed of microcavities
Fecha
2010Registro en:
APPLIED PHYSICS LETTERS, v.96, n.7, 2010
0003-6951
10.1063/1.3327836
Autor
Salvadori, Maria Cecilia Barbosa da Silveira
Cattani, Mauro Sergio Dorsa
Oliveira, Marcio Roberto da Silva
Teixeira, Fernanda de Sá
BROWN, I. G.
Institución
Resumen
We have developed a theoretical model for superhydrophobic surfaces that are formed from an extended array of microcavities, and have fabricated specific microcavity patterns to form superhydrophobic surfaces of the kind modeled. The model shows that the cavity aspect ratio can be significantly less than unity, indicating that the microcavities do not need to be deep in order to enhance the superhydrophobic character of the surface. We have fabricated surfaces of this kind and measured advancing contact angle as high as 153 degrees, in agreement with predictions of the model.