On the dynamic of capillary flow in composite paper strip

M. Aubret, P. Chuberre, G. Sabbate, P. Pouteau, J. Berthier
University of Washington,
United States

Keywords: composite paper strips, Darcy's law , Lucas-Washburn law


Paper strips are certainly the most used portable devices to test blood and body liquids for biochemical targets. However the dynamic of the capillary flow in composite paper pads is mostly investigated experimentally. In this work,we present a theoretical model for this capillary flow. The model fits well the experimental data.