Ladderlike Tapered Pillars Enabling Spontaneous and Consecutive Liquid Transport

摘要: Directional liquid transport has significant domestic and industrial applications. Tapered objects have theoretically experimentally been demonstrated to the ability spontaneously liquids. However, transporting distance is limited, consecutively liquids always a challenge. In this work we proposed exploit ladderlike tapered pillars, which are inspired by relay races, increase distance. These pillars were designed using developed numerical model fabricated novel alternating etching coating method followed wettability enhancement. We through experiments that resulting could droplet at an average velocity of 0.139 m/s with maximum acceleration 5g. The optimum window tilt angle range (0°–25°), contact (50°), chemical modification time (5 min) obtained. Such able im...