Friction on a Microstructured Elastomer Surface

被引：52

作者：

Broermann, Katrin ^{[1
]}

Barel, Itay ^{[2
]}

Urbakh, Michael ^{[2
]}

Bennewitz, Roland ^{[1
]}

机构：

[1] Univ Saarland, INM Leibniz Inst New Mat & Expt Phys, D-66123 Saarbrucken, Germany

[2] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

TRIBOLOGY LETTERS | 2013年 / 50卷 / 01期

关键词：

Stick-slip; Static friction; Unlubricated friction; Elastomers; Stress analysis; Optical microscopy; FIBRILLAR SURFACE; ADHESION; CONTACT; GECKO; SLIP; RUBBER; POLY(DIMETHYLSILOXANE); RETRACTION; PRECURSORS; FRONTS;

D O I：

10.1007/s11249-012-0044-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The friction of microstructured polydimethylsiloxane samples against a glass surface is studied through force measurements and simultaneous optical microscopy. Both average friction forces and the amplitude of stick-slip oscillations are greatly reduced by the structuring. Optical microscopy reveals waves propagating through the contact in connection which stick-slip events. The experimental observations are interpreted with the help of simulations of a spring-block model for which parameters are directly derived from the experiment. Stress gradients across the contact area are found to play an important role for the frictional behavior.

引用

页码：3 / 15

页数：13

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