Turning autophobic wetting on biomimetic surfaces into complete wetting by wetting additives

Soft Matter ◽  
2020 ◽  
Vol 16 (20) ◽  
pp. 4823-4839
Author(s):  
Frans A. M. Leermakers ◽  
Gustavo S. Luengo ◽  
Nawel Baghdadli ◽  
Christian Mazilier ◽  
Anne Potter ◽  
...  
Keyword(s):  
Energy Barrier ◽  
Complete Wetting ◽  
Conditioning Performance ◽  
Biomimetic Surfaces ◽  
Partial Wetting ◽  
Wetting Film

Autophobicity or pseudo partial wetting, a phenomenon of a liquid not spreading on its own monolayer, is characterized by an energy barrier that prevents the growth of a wetting film beyond the monolayer thickness, which additionally may have an impact on the conditioning performance of films.

EFFECT OF DISC-WATER INTERACTION ON THE WETTING BEHAVIOR OF WATER PHASE BETWEEN TWO DISCS

2003 ◽  
Vol 17 (24) ◽  
pp. 1283-1291
Author(s):  
YIN-QUAN YUAN ◽  
XIAN-WU ZOU ◽  
PING-FAN XIONG ◽  
ZHUN-ZHI JIN
Keyword(s):  
Energy Analysis ◽  
Wetting Transition ◽  
Molecular Dynamic Simulations ◽  
Dynamic Simulations ◽  
Complete Wetting ◽  
Wetting Behavior ◽  
Water Interaction ◽  
Partial Wetting ◽  
Free Energy Analysis ◽  
Analytical Expressions

The effect of the interaction between a disc and water-like particle on the wetting behavior of water-like phase between two discs has been investigated by free energy analysis and discontinuous molecular dynamic simulations. A detailed description for the partial wetting-complete wetting transition is provided and the analytical expressions describing the wetting behavior are obtained.

On the transition from partial wetting to complete wetting of methanol on graphite

2019 ◽  
Vol 21 (47) ◽  
pp. 26219-26231
Author(s):  
Luisa Prasetyo ◽  
Toshihide Horikawa ◽  
Naoki Takashima ◽  
D. D. Do ◽  
D. Nicholson
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Carbon Black ◽  
Excellent Agreement ◽  
Triple Point ◽  
Low Temperatures ◽  
Graphitized Carbon Black ◽  
Complete Wetting ◽  
Graphitized Carbon ◽  
Partial Wetting

Excellent agreement with experiment for methanol adsorption on graphitized carbon black at low temperatures by Monte Carlo simulation. Incomplete wetting and complete wetting are observed at a range of temperatures above the triple point.

Wetting Transitions in Fluid KxKCl1−x Revisited

2003 ◽  
Vol 217 (7) ◽  
pp. 879-892 ◽  
Author(s):  
S. Dogel ◽  
D. Nattland ◽  
Werner Freyland
Keyword(s):  
Film Thickness ◽  
Quantitative Description ◽  
Liquidus Line ◽  
Constant Composition ◽  
Complete Wetting ◽  
Wetting Transitions ◽  
Molten Salt System ◽  
Increasing Temperature ◽  
Solid Liquid ◽  
Wetting Film

AbstractSpectroscopic ellipsometry and reflectometry were employed to study the wetting behaviour of the metal–molten salt system Kx(KCl)1−x at the interface to an inert sapphire wall. We present new results on the wetting film spectra and on the film thickness at solid–liquid coexistence and in the homogeneous liquid phase. The film spectra clearly show the typical absorption of the liquid state F-centre. The wetting film thickness strongly increases approaching the monotectic temperature along the liquidus line. In the homogeneous regime the film thickness decreases at constant composition with increasing temperature and at constant temperature with decreasing salt concentration in agreement with complete wetting. For the interpretation within the framework of tetra point wetting we have developed a quantitative description of the excess Gibbs energy of the system.

Wetting of a Smooth Substrate by Crystal

1991 ◽  
Vol 237 ◽  
Author(s):  
David J. Courtemanche ◽  
Frank van Swol
Keyword(s):  
Molecular Dynamics ◽  
Hard Sphere ◽  
Hard Spheres ◽  
Phase System ◽  
Hard Wall ◽  
Direct Simulation ◽  
Two Phase ◽  
Complete Wetting ◽  
Hard Sphere Fluid ◽  
Partial Wetting

AbstractWe report on a molecular dynamics (MD) study of the wetting state of a system of hard spheres near a smooth planar hard wall. A direct simulation at the melting point of a two-phase system between two walls develops all the way from complete wetting by fluid (cos(θ) = 0) via partial wetting state to a final arrangement of complete wetting by crystal (cos(θ) = 1). This implies that a hard sphere fluid spontaneously crystallizes at a smooth hard wall, contrary to existing beliefs.

Exchange-Biasing in a Dinuclear Dysprosium(III) Single-Molecule Magnet with a Large Energy Barrier for Magnetization Reversal

2019 ◽  
Author(s):  
Tian Han ◽  
Marcus J. Giansiracusa ◽  
Zi-Han Li ◽  
You-Song Ding ◽  
Nicholas F. Chilton ◽  
...  
Keyword(s):  
Single Molecule ◽  
Magnetization Reversal ◽  
Energy Barrier ◽  
Magnetic Hysteresis ◽  
Large Energy ◽  
Magnetic Studies ◽  
Bridging Ligands ◽  
Single Molecule Magnet ◽  
Exchange Biasing

A dichlorido-bridged dinuclear dysprosium(III) single-molecule magnet [Dy<sub>2</sub>L<sub>2</sub>(<i>µ</i>-Cl)<sub>2</sub>(THF)<sub>2</sub>] has been made using a diamine-bis(phenolate) ligand, H<sub>2</sub>L. Magnetic studies show an energy barrier for magnetization reversal (<i>U</i><sub>eff</sub>) around 1000 K. Exchange-biasing effect is clearly seen in magnetic hysteresis with steps up to 4 K. <i>Ab</i> initio calculations exclude the possibility of pure dipolar origin of this effect leading to the conclusion that super-exchange <i>via</i> the chloride bridging ligands is important.

Correlating Blocking Temperatures in Single Molecule Magnets with Raman Relaxation

2018 ◽  
Author(s):  
Marcus J. Giansiracusa ◽  
Andreas Kostopoulos ◽  
George F. S. Whitehead ◽  
David Collison ◽  
Floriana Tuna ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Single Molecule ◽  
Energy Barrier ◽  
Thermal Relaxation ◽  
Relaxation Mechanism ◽  
Blocking Temperature ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet ◽  
Key Parameter

We report a six coordinate DyIII single-molecule magnet<br>(SMM) with an energy barrier of 1110 K for thermal relaxation of<br>magnetization. The sample shows no retention of magnetization<br>even at 2 K and this led us to find a good correlation between the<br>blocking temperature and the Raman relaxation regime for SMMs.<br>The key parameter is the relaxation time (𝜏<sub>switch</sub>) at the point where<br>the Raman relaxation mechanism becomes more important than<br>Orbach.

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