Results 261 to 270 of about 2,587,535 (290)
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Effect of Contact Angle Hysteresis on the Measurement of Capillary Forces
Langmuir, 2007We conduct experimental investigations of macroscopic capillary forces between two flat rigid substrates characterized by their advancing and receding contact angles with water. Our results exhibit excellent agreement with theoretical predictions obtained by the numerical solution of the capillary equation.
De Souza, EJ +4 more
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Contact angle hysteresis in electrowetting on dielectric
Chinese Physics B, 2015Contact angle hysteresis (CAH) is one of the significant physical phenomena in electrowetting on dielectric (EWOD). In this work, a theoretical model is proposed to characterize electrowetting evolution on substrates with CAH, and the relationship among apparent contact angle, potential, and some other parameters is quantified.
Rui Zhao +3 more
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The hysteresis of the angle of contact of mercury
Proceedings of the Physical Society, 1946A dynamical method is described for the observation of the advancing and receding angles of contact of mercury at very low velocities. It is suggested that the irreversible part of the work expended when the line of contact of the liquid traverses the solid surface is different for the two directions of motion.
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Water Contact Angles and Hysteresis of Polyamide Surfaces
Journal of Colloid and Interface Science, 2002The wetting behavior of a series of aliphatic polyamides (PAs) has been examined. PAs with varying amide content and polyethylene (PE) were molded against glass to produce surfaces with similar roughness. After cleaning, chemical composition of the surfaces was verified with X-ray photoelectron spectroscopy.
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A 2D Geometrical Perspective for the Contact Angle Hysteresis
LangmuirContact angle and its hysteresis during advancing and receding are probably the most fundamental concepts when two fluids interact with a solid surface. Surface roughness/microstructure affects contact angle hysteresis. Fiber is a common structure used to fabricate functional surfaces.
Lei Liu +9 more
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Dynamics of the Contact Line: Contact Angle Hysteresis
Physical Review Letters, 1997Collet, P. +3 more
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