Shape of a liquid front upon dewetting - art.no. 196101

被引：104

作者：

Seemann, R ^{[1
]}

Herminghaus, S ^{[1
]}

Jacobs, K ^{[1
]}

机构：

[1] Univ Ulm, Dept Appl Phys, D-89069 Ulm, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.87.196101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The profile of a liquid front of a polymer film dewetting a solid substrate is examined by atomic force microscopy. The material removed from the substrate is accumulated in a rim next to the three-phase contact line. Theory predicts the leading edge of the rim profile to be a damped harmonic oscillation for a large class of systems. This is investigated experimentally for the first time, and we show that a non-Newtonian liquid behaves qualitatively different due to viscoelastic effects. It is pointed out that analysis of the rim shapes allows one to study quantitatively the rheological properties of complex fluids on a nanometer scale.

引用

页数：4

共 20 条

[1] WETTING AND SLIPPAGE OF POLYMER MELTS ON SEMI-IDEAL SURFACES [J].