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
DOI
https://dx.doi.org/10.1103/PhysRevE.104.L043101
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.