Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
598393 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2006 | 7 Pages |
Abstract
Contact angles of different liquids on smooth and homogeneous films of Teflon AF 1600 were studied as a function of rate of motion of the three-phase line. For liquids with a dynamic viscosity of well below 10Â (cP), neither advancing nor receding angles are influenced significantly by the rate of motion up to â¼12Â (mm/min). On the other hand for more viscous liquids increasing the rate of motion causes the advancing angles to increase and the receding angles to decrease. Such dynamic contact angles may not be used in conjunction with the Young equation.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
H. Tavana, A.W. Neumann,