Journal Article10.1021/LA00082A018
Additive and nonadditive surface tension components and the interpretation of contact angles
TL;DR: In this paper, it was shown that the relation between contact angles and the three controlling parameters ybw, yg, and 7s of a polar solid, S, cannot be established by means of one single equation.
read more
Abstract: It is demonstrated that, while the Lifshitz-van der Waals (rLW) and the polar, Lewis acid-base (rAB) surface tension components are additive, the Lewis acid-base electron-acceptor (7') and electron-donor (y-) surface tension parameters (which on account of the intrinsic asymmetry of their interactions are connected in a more complex manner) are not additive. Contact angle data cannot, in general, be correlated with a single surface tension property. The relation between contact angles and the three controlling parameters ybw, yg, and 7s of a polar solid, S, cannot be established by means of one single equation. These three unknowns can, however, be determined by means of contact angle measurements with three different liquids L (of which two must be polar and H-bonding), which are completely characterized as to their respective rkw, yL+, and y i parameters by using a modified Young-Good-GirifalcoFowkes equation 3 times. In view of these considerations. recent claims to have proven the applicability of a single "equation of state" are shown to be spurious.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Study on the adhesion property between asphalt binder and aggregate: A state-of-the-art review
TL;DR: In this article, a comprehensive understanding about the adhesion property between asphalt binder and aggregate has been studied, and the common and recent researches about mechanism, evaluation methods and indexes, influence factors, and improvements of adhesion properties have been reviewed.
115
Surface-engineered sponges for recovery of crude oil microdroplets from wastewater
Pavani Cherukupally,Pavani Cherukupally,Wei Sun,Wei Sun,Annabelle P. Y. Wong,Daryl R. Williams,Geoffrey A. Ozin,Amy M. Bilton,Chul B. Park +8 more
- 02 Feb 2020
TL;DR: In this paper, an innovative surface-engineered sponge (SEnS) that synergistically combines surface chemistry, charge and roughness, provides a solution to this problem, which can enable large-scale removal and recovery of crude oil microdroplets from wastewater.
113
Human saliva and model saliva at bulk to adsorbed phases - similarities and differences.
TL;DR: This review provides the first comprehensive framework on simulating saliva for a particular bulk or surface property when doing food oral processing experiments and recommends that BSM is currently the most optimal commercially available mucin source when attempting to replicate saliva based on surface adsorption and lubrication properties.
113
Application of atomic force spectroscopy (AFS) to studies of adhesion phenomena: a review
TL;DR: In this paper, the fundamental principles of atomic force spectroscopy (AFS) and how this technique became a useful tool to investigate adhesion forces were described and discussed. But, the application of the AFS technique for probing surface interactions open up new possibilities to evaluate adhesion.
112
Comparing Contact Angle Measurements and Surface Tension Assessments of Solid Surfaces
TL;DR: A recently developed, Gibbsian-based correlation between interfacial tensions and individual surface tensions was used to calculate the surface tensions of the solid surfaces from the most stable contact angle of water, and yielded in most cases higher values than calculated with the other four methods.
112