Contact Angle Hysteresis
The Measurement of the Surface Energy of Solids by Sessile Drop Accelerometry
... During the energy release process, the receding of the drop will result in contact angle hysteresis.. The 199.[r] ...
25
Design and Development of Superhydrophobic Textile Surfaces
... water contact angle greater than 150° and a roll-off angle less than ...high contact angle is obtained by a combination of surface chemistry and surface roughness while the roll-off ...
105
Two-Phase Flows With Dynamic Contact Angle Effects For Fuel Cell Applications
... receding contact angles were updated with droplet ...a contact angle hysteresis model with volume of fluid (VOF) method to simulate the liquid slug flow in a single ...receding contact ...
150
Investigation of the effect of geometry and surface properties on water buildup in pem fuel cell gas channel corners
... The contact angles for both surfaces are very comparably as shown in Table ...the contact angle while the other was roughened randomly using a ...of contact angle as well as the effect ...
84
Wetting properties on nanostructured surfaces of cicada wings
... CA hysteresis owing to a very large surface roughness (Youngblood and McCarthy, 1999; Lafuma and Quéré, 2003) resulting in high energy barriers (Nosonovsky, ...of contact moved resulting in a greater ...
8
Dropwise condensation on solid hydrophilic surfaces
... the contact angle hysteresis ...receding contact angles) (5–10) rather than the intrinsic ...low contact angle hysteresis is theoretically ...
8
Morphology and Surface Properties of Poly(L-lactic acid)/Captopril Composite Nanofiber Membranes
... advancing contact angle of PLLA cast film was about ...receding contact angle was about 44.78° and the contact angle hysteresis reached ...advancing contact ...
7
Lattice Boltzmann modeling of contact angle and its hysteresis in two-phase flow with large viscosity difference
... The contact angle hysteresis is the difference between the advancing and receding contact angles and is used to characterize surface roughness and/or surface ...The contact angle ...
18
CFD based optimisation of the superhydrophobic functional surface in dropwise condensation
... The dynamics of coalescence in stage I and II is a few order of magnitude higher that in stage III. All of those processes involved in droplet coalescence has been modelled using different numerical tools and techniques. ...
5
Contact Angle Measurements for Advanced Thermal Management Technologies
... 10 Contact angle measurements of water, acetone, R-134a, and HFO-1234yf using capillary rise and sessile drop ...in contact angles, in particular for the acetone-based ...a contact ...
9
Mixing and internal dynamics of droplets impacting and coalescing on a solid surface
... dynamic contact angle to be ...static contact angle, and the dynamic behavior emerges during the ...dynamic contact angle varies continuously around the whole perimeter defined ...
12
De-icing in Photovoltaic Devices by Ultrasonic Waves and Surface Engineering
... water contact angle of the lightly sprayed coating with a 2mm nozzle was measured at ...water contact angle hysteresis was measured at 41° over three trials with a standard deviation of ...
244
Optical and X ray characterization of the magnetic properties of gold capped cobalt nanowires grown on Pt(997)
... While the studies revealed a rich magnetic behavior in the Au-capped Co nanowires, a number of experimental factors prevented the study of the smallest wires, of one or two atom thickness. For the XMCD measurements, ...
113
Controlling the Transient Interface Shape and Deposition Profile Left by Desiccation of Colloidal Droplets on Multiple Polymer Surfaces
... receding contact angle was too low to even be measured accurately ...receding contact angle (i.e. large hysteresis) resulted in the contact line remaining pinned for the majority ...
138
Droplets on Inclined Plates: Local and Global Hysteresis of Pinned Capillary Surfaces
... no hysteresis at all upon tilting back and forth, whereas we will show ...local hysteresis of the contact line translates into hysteresis of the entire droplet shape and in critical behavior ...
5
Vol 61, No 4 (2018)
... the contact contour between the upper die and the cylindrical ...the contact area ( λ ) and the angle subtended by the contact arc ( α AB) with respect to the spiral feed (S θ ), rocking ...
6
Probing the morphology and anti-organic fouling behaviour of a polyetherimide membrane modified with hydrophilic organic acids as additives
... From the literature, it was observed that, the presence of low molecular weight organic additives offers an effective and convenient way to alter the membrane performance with enhanced hydrophilicity, high permeability, ...
35
On the Use of Laser Ablation for Cleaning High Voltage Ceramic Insulators
... It was demonstrated that Q-switched (50 ns) Nd: YAG (1064 nm) lasers can be used to clean high voltage ce- ramic insulators. Due to the high damage threshold of the glazed surface high pulse fluencies (15 J ∙cm –2 ) can ...
6
Investigation of drop dynamic contact angle on copper surface
... static contact angles, which depend on the volume flow rate of drop ...static contact angle. The maximum difference in static contact angles (22 ◦ ) on the substrate is found on copper III (Ra ...
5
A Study of Surface Modification of Poly(lactic co glycolic) Acid Using Argon Ion Irradiation
... irradiation contact an- gle measurements were performed to account the hydrophilicity of the unmodified and irradiated ...water contact angle of PLGA before and after Argon ...of contact ...
7