hydrofobi
Hydrofobi, or hydrophobicity, is a property of substances that repel water or do not readily mix with it. It arises from nonpolar or low-polarity chemical groups that interact poorly with the polar water molecules, leading to phase separation or water beading on surfaces.
Compared with hydrophilic substances that attract and mix with water, hydrophobic materials display high water contact
The underlying mechanism is often described by the hydrophobic effect: water reorganizes around nonpolar solutes, and
Examples of hydrophobic substances include many organic compounds such as alkanes, fats, oils, and waxes. Materials
Applications and measurement: hydrophobic materials are used in waterproof clothing, coatings, anti-fouling surfaces, and oil–water separation
See also: hydrophilic, amphiphilic, surface chemistry, lotus effect.