G. S. P. Castle. Contact Charging Between Particles: Some Current
... terial. This is known as the Surface States theory of insulator charging which proposes that charges are exchanged between the surfaces in proportion to the difference between the effective work functions associated with the two materials. This theory has two limits; low and high density. For the fo ...
... terial. This is known as the Surface States theory of insulator charging which proposes that charges are exchanged between the surfaces in proportion to the difference between the effective work functions associated with the two materials. This theory has two limits; low and high density. For the fo ...
Ultrahydrophobicity
Superhydrophobic surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact angles of a water droplet exceeds 150° and the roll-off angle/contact angle hysteresis is less than 10°. This is also referred to as the Lotus effect, after the superhydrophobic leaves of the lotus plant. Droplet impacting on these kind of surfaces can fully rebound like an elastic ball, or pancake.
