Autophobic liquids contact angles

When a surface-active agent is present in a liquid droplet, it can adsorb to the surface, lower the surface energy, and cause the liquid contact angle to increase. This phenomenon, known as autophobicity, was postulated by Zisman many years ago [78, 79]. Autophobicity is quite striking in wetting films on clean... 

Table VII. Some Autophobic Liquids and Their Contact Angles on High-Energy Surfaces [54]...

FIGURE 17.8. An interesting phenomenon sometimes encountered in spreading is the autophobic effect. When the liquid is first applied to the surface, it has a small contact angle however, as adsorption occurs at the solid-liquid interface, the orientation of the adsorbed molecules makes the interface more hydrophobic, leading to a larger contact angle. 

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