Liquid wetting on a container wall forms a meniscus that causes the reading uncertainty of interface measurement, which was considered as an “inevitable” interference in experiments. For minimizing the meniscus interference, the dynamic instead of the static contact angle should be focused on and θr ≤ 90° ± ε ≤ θa is the guideline to achieve a meniscus-free interface for a practical experiment, where θr, θa, and ε are the receding and advancing contact angles, and image measuring uncertainty, respectively. A simple and systematic technique to achieve the meniscus-free interface has been proposed and visualized.
REFERENCES
1.
P.-G.
de Gennes
, F.
Brochard-Wyart
, and D.
Quéré
, Capillarity and Wetting Phenomena
(Springer
, New York, NY
, 2004
).2.
D.
Bonn
, J.
Eggers
, J.
Indekeu
, J.
Meunier
, and E.
Rolley
, “Wetting and spreading
,” Rev. Mod. Phys.
81
, 739
(2009
).3.
A.
Karnis
and S. G.
Mason
, “The flow of suspensions through tubes VI. Meniscus effects
,” J. Colloid Interface Sci.
23
, 120
(1967
).4.
Y.
Yuan
and T. R.
Lee
, Contact Angle and Wetting Properties
(Springer-Verlag Berlin Heidelberg
, 2013
).5.
F.
Rodriguez
and R.
Mesler
, “The penetration of drop-formed vortex rings into pools of liquid
,” J. Colloid Interface Sci.
121
, 121
(1988
).6.
D.
Morton
, M.
Rudman
, and J. L.
Liow
, “An investigation of the flow regimes resulting from splashing drops
,” Phys. Fluids
12
, 747
(2000
).7.
A. B.
Wang
, C. C.
Kuan
, and P. H.
Tsai
, “Do we understand the bubble formation by a single drop impacting upon liquid surface?
,” Phys. Fluids
25
, 101702
(2013
).8.
E.
Berberovic
, N. P.
van Hinsberg
, S.
Jakirlic
, I. V.
Roisman
, and C.
Tropea
, “Drop impact onto a liquid layer of finite thickness: Dynamics of the cavity evolution
,” Phys. Rev. E
79
, 036306
(2009
).9.
J.
Zou
, C.
Ji
, B. G.
Yuan
, Y. L.
Ren
, X. D.
Ruan
, and X.
Fu
, “Large bubble entrapment during drop impacts on a restricted liquid surface
,” Phys. Fluids
24
, 057101
(2012
).10.
H.
Deka
, B.
Ray
, G.
Biswas
, A.
Dalal
, P. H.
Tsai
, and A. B.
Wang
, “The regime of large bubble entrapment during a single drop impact on a liquid pool
,” Phys. Fluids
29
, 092101
(2017
).11.
A.
Sochan
, M.
Beczek
, R.
Mazur
, M.
Ryzak
, and A.
Bieganowski
, “The shape and dynamics of the generation of the splash forms in single-phase systems after drop hitting
,” Phys. Fluids
30
, 027103
(2018
).12.
G. J.
Shugar
and J. T.
Ballinger
, Chemical Technicians Ready Reference Handbook
(McGraw-Hill
, USA
, 1996
).13.
H. J.
Busscher
, A. W. J.
van Pelt
, P.
de Boer
, H. P.
de Jong
, and J.
Arends
, “The effect of surface roughening of polymers on measured contact angles of liquids
,” Colloids Surf.
9
, 319
(1984
).14.
O. V.
Voinov
, “Hydrodynamics of wetting
,” Fluid Dyn.
11
, 714
(1976
).15.
C.
Huh
and L. E.
Scriven
, “Hydrodynamic model of steady movement of a solid/liquid/fluid contact line
,” J. Colloid Interface Sci.
35
, 85
(1971
).16.
J.
Fuentes
and R. L.
Cerro
, “Flow patterns and interfacial velocities near a moving contact line
,” Exp. Fluids
38
, 503
(2005
).17.
P.
Jankowski
, D.
Ogonczyk
, A.
Kosinski
, W.
Lisowski
, and P.
Garstecki
, “Hydrophobic modification of polycarbonate for reproducible and stable formation of biocompatible microparticles
,” Lab Chip
11
, 748
(2011
).18.
K. Y.
Suh
and S.
Jon
, “Control over wettability of polyethylene glycol surfaces using capillary lithography
,” Langmuir
21
, 6836
(2005
).19.
F. J. M.
Ruiz-Cabello
, M. A.
Rodríguez-Valverde
, and M.
Cabrerizo-Vílchez
, “A new method for evaluating the most stable contact angle using tilting plate experiments
,” Soft Matter
7
, 10457
(2011
).20.
E.
Kocisova
, M.
Petr
, H.
Šípová
, O.
Kylian
, and M.
Prochazka
, “Drop coating deposition of a liposome suspension on surfaces with different wettabilities: ‘coffee ring’ formation and suspension preconcentration
,” Phys. Chem. Chem. Phys.
19
, 388
(2016
).21.
H.
Ottevaere
et al., “Comparing glass and plastic refractive microlenses fabricated with different technologies
,” J. Opt. A: Pure Appl. Opt.
8
, S407
(2006
).22.
A.
Bisighini
et al., “Crater evolution after the impact of a drop onto a semi-infinite liquid target
,” Phys. Rev. E
82
, 036319
(2010
).23.
J.
Long
, M. N.
Hyder
, R. Y. M.
Huang
, and P.
Chen
, “Thermodynamic modeling of contact angles on rough, heterogeneous surfaces
,” Adv. Colloid Interface Sci.
118
, 173
(2005
).24.
K.
Katoh
, H.
Fujita
, and M.
Yamamoto
, “Effect of surface roughness on contact angle hysteresis
,” Trans. Jpn. Soc. Mech. Eng.
57
(B
), 4124
(1991
).25.
C.
Andrieu
, C.
Sykes
, and F.
Brochard
, “Average spreading parameter on heterogeneous surfaces
,” Langmuir
10
, 2077
(1994
).26.
M. A.
Rodríguez-Valverde
, F. J. M.
Ruiz-Cabello
, and M.
Cabrerizo-Vílchez
, “A new method for evaluating the most-stable contact angle using mechanical vibration
,” Soft Matter
7
, 53
(2011
).© 2019 Author(s).
2019
Author(s)
You do not currently have access to this content.
