Abstract
The wetting of solid surfaces is treated. The Young and receding contact angles are experimentally unattainable values for the majority of solid surfaces. Actually, we always observe the apparent contact angle. This makes the characterization of wetting of real surfaces problematic. It is proposed in this paper to characterize wetting of real surfaces with the advancing contact angle and the minimum work of adhesion calculated according to the Dupre equation. The advancing contact angle, which depends slightly on the experimental technique used for its measurement, corresponds to the maximal solid/liquid surface tension and correspondingly to the minimal work of adhesion, calculated according to the Dupre equation.
Original language | English |
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Pages (from-to) | 339-342 |
Number of pages | 4 |
Journal | Colloid and Polymer Science |
Volume | 291 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2013 |
Keywords
- Advancing contact angle
- Receding contact angle
- Solid surface
- Wetting
- Work of adhesion
- Young contact angle
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Colloid and Surface Chemistry
- Materials Chemistry