Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line

Details Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line

2011-02-22

arxiv.org/abs/1102.4499v1

Physics

Chemical Physics

25 pages, 5 figures, 3 tables

Scientific paper

Evaporation of water droplets deposited on metal and polymer substrates was studied. The evaporated droplet demonstrates different behaviors on low-pinning (polymer) and strong-pinning (metallic) surfaces. When deposited on polymer surfaces, the evaporated droplet is featured by stick-slip sliding, whereas on strong-pinning metallic surfaces it does not show such kind of motion and demonstrates the giant contact-angle hysteresis. Stick-slip motion of droplets is described satisfactorily by the Shanahan-Sefiane model relating this kind of motion to surmounting potential barriers caused by the pinning of the triple (three-phase) line. The experimentally established "stick" times coincide with the values predicted by the Shanahan-Sefiane theory. The values of potential barriers are reported. The notion of the equilibrium contact angle is refined.

Affiliated with

Also associated with

No associations

Rating

Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaporation of droplets on strong and low-pinning surfaces and dynamics of the triple line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-559140