Nanodispersions of bubbles and oil drops in water
作者： Eli Ruckenstein
DOI: 10.1016/J.COLSURFA.2013.01.056
关键词:
摘要: Explanations are suggested for the experimental observations that nanobubbles and oil nanodrops dispersions in water have a long life. The increased stability of occurs because their ascensional velocity, provided by Hadamard–Rybczynski equation, is proportional to square radius. As consequence, radii nanorange, velocity extremely low. In addition, repulsive electrostatic interactions among them during motion oppose coalescence. presence air nanoemulsions increases it generates bubbles which being hydrophobic become attached drops, thus decreasing both average density drop–bubble complex friction between drop water. result, above value equation. Consequently, degassing one can increase stability. evidence brought existence hydrodynamic attractive force
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