INTEC   05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Modeling the anomalous filling dynamics in mesoporous thin films
Autor/es:
CLAUDIO L. A. BERLI; MARTIN G. BELLINO; MAGALÍ MERCURI
Lugar:
Sao Paulo
Reunión:
Workshop; VII Workshop in Microfluidics; 2017
Institución organizadora:
IPT ? Sao Paulo
Resumen:
The fluid front dynamics resulting from the coexisting infiltration and evaporation phenomena in nanofluidic systems has been recently studied by using well-characterized mesoporous thin films. A series of striking effects have been observed, namely (i) the infiltration rate is abnormally slow and decreases with increasing pore diameter, (ii) the fluid front manifest an optically invisible roughening, and (iii) under certain conditions, the infiltration-evaporation front presents backwards-forwards oscillations. The present work describes a simple model accounting for the mechanisms behind some of these effects, and presents perspectives on the study of the more complex behaviors, with particular emphasis on the searchig for novel applications.