Water Droplet Contact-Adhesion of Ice on Reference Materials

摘要

Strength of adhesion correlations over the entire series were surprisingly poorly predicted by the calculated polar force components and total values of the materials' surface free energies, themselves otherwise well-correlated with water contact angles alone. The calculated dispersion-force components of the substrata were best correlated with the actual measured push-off shear strengths for their contact-frozen attached water droplets. The empirical graphical engineering technique of Critical Surface Tension (CST) determination, influenced by all surface energy components, produced values well-correlated with the ice-detachment shear forces, and can be recommended for practical material evaluations since it is independent of variable specific surface-energy theoretical assumptions.