Abstract
Previous experiments have observed squeezing and relaxing droplets between two identical superhydrophobic surfaces decorated by the ribbed nano-needles arrays (RNNA) leading to a fully reversible dynamic process. This reversibility presents a capillary force restoration accompanying deformation of the water droplet, which mainly depends on the surface microstructures. Based on the quasi-static equilibrium of droplet compression, we have deduced and numerically computed the capillary force utilizing a classical mechanics approach. The simulated forces agree well with the experimental results. The restoration mechanism is further explored and revealed by the calculated microscopic contact angle and the liquid-air interface around the nanoneedles. © 2010 The Royal Society of Chemistry.
| Original language | English |
|---|---|
| Pages (from-to) | 2470-2474 |
| Journal | Soft Matter |
| Volume | 6 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 7 Jun 2010 |
| Externally published | Yes |
Fingerprint
Dive into the research topics of 'Capillary force restoration of droplet on superhydrophobic ribbed nano-needles arrays'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver