Abstract
© 2017 World Scientific Publishing Company.Surface tension is one of the fundamental properties of the colloids, which can be altered by concentration and size of colloidal particles. In the current work, modeling of the surface tension of suspension as it would be analyzed by maximum bubble pressure method has been performed. A new modified equation to correlate the surface tension with the bubble pressure is derived by applying fundamental thermodynamic relation considering the presence of particles in suspension and curvature of the interface between the particles and bubbles inside liquid. Moreover, the change of particles concentration in air-water interface due to capillary force is also considered. The predicted surface tension using the developed model has been verified by numerous experimental data with deviation less than 5% in most of cases. It was found that the calculated surface tension is altered by contact angle and particle radius as well as particle concentration. The obtained model may have potential application to predict the surface tension of colloidal suspension.
| Original language | English |
|---|---|
| Article number | 1750050 |
| Journal | Surface Review and Letters |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jun 2017 |
| Externally published | Yes |