Droplet spreading: A Monte Carlo test of Tanner's law

被引:33
作者
Milchev, A
Binder, K
机构
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[2] Bulgarian Acad Sci, Inst Phys Chem, BU-1113 Sofia, Bulgaria
关键词
D O I
10.1063/1.1465410
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The spreading of polymer droplets under conditions of complete wetting on an ideally flat and structureless solid substrate has been studied by computer simulation, using a coarse-grained bead-spring model of flexible macromolecules. Evidence is obtained that a power law close to Tanner's law for the growth of the lateral droplet radius {r(t)proportional tot(0.14)} and contact angle {thetaproportional tot(-0.31)} holds on nanoscopic scales. We observe the formation of a precursor film around the spreading droplet and find that the film attains diffusive dynamics at late times. (C) 2002 American Institute of Physics.
引用
收藏
页码:7691 / 7694
页数:4
相关论文
共 39 条
[11]  
Brochard-Wyart F., 1999, Soft matter physics, P1
[12]   HOW DOES A DROPLET SPREAD [J].
CAZABAT, AM .
CONTEMPORARY PHYSICS, 1987, 28 (04) :347-364
[13]  
CAZABAT AM, 1990, PROG COLL POL SCI S, V83, P52
[14]   TERRACED SPREADING OF CHAIN MOLECULES VIA MOLECULAR-DYNAMICS [J].
DECONINCK, J ;
DORTONA, U ;
KOPLIK, J ;
BANAVAR, JR .
PHYSICAL REVIEW LETTERS, 1995, 74 (06) :928-931
[15]   EFFECTIVE MICROSCOPIC MODEL FOR THE DYNAMICS OF SPREADING [J].
DECONINCK, J ;
HOORELBEKE, S ;
VALIGNAT, MP ;
CAZABAT, AM .
PHYSICAL REVIEW E, 1993, 48 (06) :4549-4555
[16]   A MICROSCOPIC SIMULATION OF THE SPREADING OF LAYERED DROPLETS [J].
DECONINCK, J ;
FRAYSSE, N ;
VALIGNAT, MP ;
CAZABAT, AM .
LANGMUIR, 1993, 9 (07) :1906-1909
[17]   WETTING - STATICS AND DYNAMICS [J].
DEGENNES, PG .
REVIEWS OF MODERN PHYSICS, 1985, 57 (03) :827-863
[18]   Terraced spreading mechanisms for chain molecules [J].
DOrtona, U ;
DeConinck, J ;
Koplik, J ;
Banavar, JR .
PHYSICAL REVIEW E, 1996, 53 (01) :562-569
[19]   A third-order differential equation arising in thin-film flows and relevant to Tanner's law [J].
Duffy, BR ;
Wilson, SK .
APPLIED MATHEMATICS LETTERS, 1997, 10 (03) :63-68
[20]   SPREADING OF LIQUIDS ON SOLID-SURFACES - STATIC AND DYNAMIC CONTACT LINES [J].
DUSSAN, EB .
ANNUAL REVIEW OF FLUID MECHANICS, 1979, 11 :371-400