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Effect of surface charge on water film nanoconfined between hydrophilic solid surfaces

2009; American Institute of Physics; Volume: 105; Issue: 12 Linguagem: Inglês

10.1063/1.3148290

1520-8850

Shuhai Liu, Jianbin Luo, Guoxin Xie, Dan Guo,

Electrostatics and Colloid Interactions

The effect of surface charge on the water film confined between hydrophilic solid surfaces has been investigated using thin film interferometry. Experimental results indicate that the higher surface charge density induces the thicker water film for model surfaces, silica, and alumina. It is thought that the strong surface field induced by the surface charge establishes a more ordered hydrogen-bonding network that promotes the forming of thicker water lubrication film between hydrophilic solid surfaces.