Boundary slip on smooth hydrophobic surfaces: Intrinsic effects and possible artifacts

被引：371

作者：

Cottin-Bizonne, C ^{[1
]}

Cross, B ^{[1
]}

Steinberger, A ^{[1
]}

Charlaix, E ^{[1
]}

机构：

[1] Univ Lyon 1, Lab Phys Matiere Condensee & Nanostruct, F-69622 Villeurbanne, France

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.94.056102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an accurate determination of the hydrodynamic boundary condition of simple liquids flowing on smooth hydrophobic surfaces using a dynamic surface force apparatus equipped with two independent subnanometer resolution sensors. The boundary slip observed is well defined and does not depend on the scale of investigation from one to several hundreds of nanometers, nor on shear rate up to 5 x 10(3) s(-1). The slip length of 20 nm is in good agreement with theory and numerical simulations concerning smooth nonwetting surfaces. These results disagree with previous data in the literature reporting very high boundary slip on similar systems. We discuss possible origins of large slip length on smooth hydrophobic surfaces due to their contamination by hydrophobic particles.

引用

页数：4

共 33 条

[1] Large slip effect at a nonwetting fluid-solid interface
Barrat, JL
Bocquet, L
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (23) : 4671 - 4674
[2] Experimental evidence for a large slip effect at a nonwetting fluid-solid interface
Baudry, J
Charlaix, E
Tonck, A
Mazuyer, D
[J]. LANGMUIR, 2001, 17 (17) : 5232 - 5236
[3] Nanofluidics: Viscous dissipation in layered liquid films
Becker, T
Mugele, F
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (16)
[4] HYDRODYNAMIC BOUNDARY-CONDITIONS, CORRELATION-FUNCTIONS, AND KUBO RELATIONS FOR CONFINED FLUIDS
BOCQUET, L
BARRAT, JL
[J]. PHYSICAL REVIEW E, 1994, 49 (04) : 3079 - 3092
[5] Surface roughness and hydrodynamic boundary slip of a newtonian fluid in a completely wetting system
Bonaccurso, E
Butt, HJ
Craig, VSJ
[J]. PHYSICAL REVIEW LETTERS, 2003, 90 (14) : 4
[6] THE DRAINAGE OF THIN LIQUID-FILMS BETWEEN SOLID-SURFACES
CHAN, DYC
HORN, RG
[J]. JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (10) : 5311 - 5324
[7] Apparent slip flows in hydrophilic and hydrophobic microchannels
Choi, CH
Westin, KJA
Breuer, KS
[J]. PHYSICS OF FLUIDS, 2003, 15 (10) : 2897 - 2902
[8] Direct measurements of the force between hydrophobic surfaces in water
Christenson, HK
Claesson, PM
[J]. ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2001, 91 (03) : 391 - 436
[9] Low-friction flows of liquid at nanopatterned interfaces
Cottin-Bizonne, C
Barrat, JL
Bocquet, L
Charlaix, E
[J]. NATURE MATERIALS, 2003, 2 (04) : 237 - 240
[10] Nanorheology:: An investigation of the boundary condition at hydrophobic and hydrophilic interfaces
Cottin-Bizonne, C
Jurine, S
Baudry, J
Crassous, J
Restagno, F
Charlaix, É
[J]. EUROPEAN PHYSICAL JOURNAL E, 2002, 9 (01) : 47 - 53

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