How Spontaneous Electrowetting and Surface Charge affect Drop Motion

Water drops sliding on hydrophobic surfaces spontaneously separate charges at their rear. It is unclear how this charge separation affects the contact angles of a sliding drop....在疏水表面上滑动的水滴会在其尾部自发发生电荷分离。目前尚不清楚这种电荷分离会对滑动水滴的接触角产生何种影响。