Contact angle hysteresis

被引：207

作者：

Butt, Hans-Jurgen ^{[1
,2
]}

Liu, Jie ^{[1
]}

Koynov, Kaloian ^{[1
]}

Straub, Benedikt ^{[1
]}

Hinduja, Chirag ^{[1
]}

Roismann, Ilia ^{[3
]}

Berger, Rudiger ^{[1
]}

Li, Xiaomei ^{[1
]}

Vollmer, Doris ^{[1
]}

Steffen, Werner ^{[1
]}

Kappl, Michael ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany

[2] Tokyo Inst Technol, Earth Life Sci Inst, Chem Evolut Lab Unit, Tokyo, Japan

[3] Tech Univ Darmstadt, Inst Fluid Mech & Aerodynam, Alarich Weiss Str 10, D-64287 Darmstadt, Germany

来源：

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE | 2022年 / 59卷

基金：

欧洲研究理事会;

关键词：

THERMALLY ACTIVATED MOTION; LIQUID-DROPS; SOLID-SURFACES; LINE MOTION; OMNIPHOBIC SURFACES; MOLECULAR-DYNAMICS; POLYMER SURFACES; STEADY MOVEMENT; WATER DROPLET; BRUSHES;

D O I：

10.1016/j.cocis.2022.101574

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：

In thermodynamic equilibrium, the contact angle is related by Young's equation to the interfacial energies. Unfortunately, it is practically impossible to measure the equilibrium contact angle. When for example placing a drop on a surface its contact angle can assume any value between the advancing theta(a)a and receding theta(r) contact angles, depending on how the drop is placed. theta(a) - theta(r )is called contact angle hysteresis. Contact angle hysteresis is essential for our daily life because it provides friction to drops. Many applications, such as coating, painting, flotation, would not be possible without contact angle hysteresis. Contact angle hysteresis is caused by the nanoscopic structure of the surfaces. Here, we review our current understanding of contact angle hysteresis with a focus on water as the liquid. We describe appropriate methods to measure it, discuss the causes of contact angle hysteresis, and describe the preparation of surfaces with low contact angle hysteresis.

引用

页数：19

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