High-speed NMR imaging of capillary action in thin nontransparent porous media
article
An improved High-Speed NMR profiling method is introduced that enables to measure capillary action in thin, non-transparent porous media. Liquid profiles can be measured as fast as 10 ms with a spatial resolution of 14.5 µm. Capillary absorption of microliter-sized droplets into non-transparent nylon-6,6 porous membranes was studied. In nylon-6,6 sharp fronts obeying a 1D-Darcy model were observed. In paper uptake did not follow this model: retardation in uptake, broader fluid fronts and swelling was observed. These measurements nicely demonstrate the possibilities and versatility of the developed method.
Topics
TNO Identifier
967728
ISSN
24700045
Source
Physical Review E, 104(4)
Publisher
American Physical Society
Article nr.
L043101
Files
To receive the publication files, please send an e-mail request to TNO Repository.