疏水薄膜上水滴滑行加速度的观测(英文)

Observation of Sliding Acceleration of Water Droplet on Hydrophobic Coatings

We evaluated sliding acceleration of a water droplet on a silicon surface treated with octadecyltrichlorosilane by changing the droplet weight. The slope of the sliding acceleration against the droplet weight was changed at 20 mg, suggesting that the dominant sliding mode was shifted from slipping to rolling. Water droplets elongated and contracted during sliding when silicon surface was treated by fluoroalkylsilane. The elongation inversely corresponded to the change of sliding acceleration.

We evaluated sliding acceleration of a water droplet on a silicon surface treated with octadecyltrichlorosilane by changing the droplet weight. The slope of the sliding acceleration against the droplet weight was changed at 20 rag, suggesting that the dominant sliding mode was shifted from slipping to roiling. Water droplets elongated and contracted during sliding when silicon surface was treated by fluoroalkylsilane. The elongation inversely corresponded to the change of sliding acceleration.