Modeling adhesive force distributions on highly rough surfaces

被引：12

作者：

Fritzsche, Joerg ^{[1
]}

Peuker, Urs Alexander ^{[1
]}

机构：

[1] TU Freiberg, Inst Mech Proc Engn & Mineral Proc, Agricolastr 1, D-09599 Freiberg, Germany

来源：

POWDER TECHNOLOGY | 2016年 / 289卷

关键词：

Atomic force microscopy; Colloidal probe technique; Van der Waals force; Hydrophobic force; Force distribution; HAMAKER CONSTANTS; PARTICLE ADHESION; LIFSHITZ THEORY; FILTRATION; AGGLOMERATION; MICROSCOPY; MECHANISMS; HYDRATION; WATER;

D O I：

10.1016/j.powtec.2015.11.057

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Adhesive forces between particles have a major impact on many processes. The calculation of these forces is possible in the case of ideal smooth surfaces. Nevertheless real surfaces are rough which typically leads to decreased forces. Furthermore the forces are distributed over several orders of magnitude. In the presented paper, a new model to calculate the force distributions is developed. The model is based on surface roughness parameters which can be measured by atomic force microscopy. It is valid for van der Waals forces as well as for hydrophobic forces. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：88 / 94

页数：7

共 39 条

[1] Comparisons of Hamaker constants for ceramic systems with intervening vacuum or water: From force laws and physical properties [J].

Ackler, HD ;

French, RH ;

Chiang, YM .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 179 (02) :460-469

[2]

[Anonymous], 2006, INTERFACIAL FORCES A

[3] Pull-off force measurements between rough surfaces by atomic force microscopy [J].

Beach, ER ;

Tormoen, GW ;

Drelich, J ;

Han, R .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 247 (01) :84-99

[4]

Berg JC., 1993, Wettability

[5] Hamaker constants of inorganic materials [J].

Bergstrom, L .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 1997, 70 :125-169

[6] Estimation of Hamaker constants of ceramic materials from optical data using Lifshitz theory [J].

Bergstrom, L ;

Meurk, N ;

Arwin, H ;

Rowcliffe, DJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (02) :339-348

[7]

Butt H. J., 2010, Surface and Interfacial Surfaces

[8] Force measurements with the atomic force microscope: Technique, interpretation and applications [J].

Butt, HJ ;

Cappella, B ;

Kappl, M .

SURFACE SCIENCE REPORTS, 2005, 59 (1-6) :1-152

[9]

Derjaguin B, 1941, ACTA PHYS CHEM URSS, V14

[10] DIRECT MEASUREMENT OF COLLOIDAL FORCES USING AN ATOMIC FORCE MICROSCOPE [J].

DUCKER, WA ;

SENDEN, TJ ;

PASHLEY, RM .

NATURE, 1991, 353 (6341) :239-241

← 1 2 3 4 →