Abstract
Wettablity is one of the important characteristics defining a given surface. Here we show that the effective interface potential method of determining the wetting temperature, originally proposed by MacDowell and Müller for the surfaces exhibiting the first order wetting transition, can also be used to estimate the wetting temperature of the second order (continuous) wetting transition. Some selected other methods of determination of the wetting temperature are also discussed.
Highlights
Understanding and controlling wetting properties of materials are some of the most important factors in many industrial applications including oil recovery [1], mineral flotation [2] and design of superamphiphobic surfaces [3].Wetting transition is a surface-induced transition in which the contact angle of a liquid deposited on a surface drops to zero from a non-zero value upon increasing temperature
We have studied three methods of determination of the critical wetting transition
The effective interface potential method can be used to determine the location of the critical wetting transition
Summary
Understanding and controlling wetting properties of materials are some of the most important factors in many industrial applications including oil recovery [1], mineral flotation [2] and design of superamphiphobic surfaces [3]. Subsequent Monte Carlo calculations carried out for the Ising model [13,14,15] revealed that while the general features regarding the wetting transition for the Ising model do agree with theoretical predictions [9], the critical wetting transition is only very weakly nonuniversal This disagreement has been the subject of ever-lasting efforts in order to bridge the gap between the theory and simulations. Using nonlocal effective interfacial Hamiltonian Parry et al [16] argued that the spectrum of the interfacial fluctuations has a lower cutoff due to appearance of a new length scale ξNL = lξ ∝ ln ξ This gives rise to an effective wetting parameter, ωe f f , of the form ωe f f ω.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
