Capillary Rise of Liquids in Nanopores

Details Capillary Rise of Liquids in Nanopores Capillary Rise of Liquids in Nanopores

2007-05-14

arxiv.org/abs/0705.1997v2

Mater. Res. Soc. Symp. Proc. 899E, N7.1 (2006)

Physics

Fluid Dynamics

4 pages, 1 figure, presented as a talk at the MRS Fall Meeting, Boston (2005) in the session on "Dynamics in Confinement"

Scientific paper

We present measurements on the spontaneous imbibition (capillary rise) of water, a linear hydrocarbon (n-C16H34) and a liquid crystal (8OCB) into the pore space of monolithic, nanoporous Vycor glass (mean pore radius 5 nm). Measurements on the mass uptake of the porous hosts as a function of time, m(t), are in good agreement with the Lucas-Washburn square root of time prediction, typical of imbibition of liquids into porous hosts. The relative capillary rise velocities scale as expected from the bulk fluid parameters.

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