AI Article Synopsis
- The study examined surface properties of solid particles through capillary rise experiments, validating methods using silica flour and calcium carbonate.
- Dispersive and nondispersive components of surface free energy and solid-liquid interactions were calculated, while addressing previous experimental inaccuracies in wettability characteristics.
- A novel connection to the geometrical factor in Washburn's equation was established, achieving high precision in weight gain measurements by carefully controlling experimental conditions.
Article Abstract
Surface properties in terms of surface free energy of solid particles were investigated using capillary rise experimental methods based on Washburn's equation. Two different approaches related to height and weight gain measurements were validated by silica flour and calcium carbonate surface studies. Dispersive components of the surface free energy and nondispersive components of solid-liquid energy of interaction were computed. Some differences observed are related to experimental data acquisitions. Many experimental difficulties, which led in the past to inaccurate wettability characteristics, have been controlled. A new link to the so-called geometrical factor of Washburn's equation has also been established after comparison of theoretical and experimental static and hydrodynamic radii. The high precision of the weight gain approach was achieved by strict control of experimental parameters such as temperature, powder packing, and sintered glass porosity.
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| http://dx.doi.org/10.1006/jcis.1996.4640 | DOI Listing |
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