Enhancement of Friction against a Rough Surface by a Ridge-Channel Surface Microstructure

We report on a study of the sliding friction of elastomeric surfaces patterned with ridges and channels (and unstructured flat controls), against both smooth and roughened spherical indenters. Against the smooth spherical indenter, all of the structured surfaces have highly reduced sliding friction...

Description complète

Détails bibliographiques
Publié dans:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 31(2015), 27 vom: 14. Juli, Seite 7581-9
Auteur principal: Bai, Ying (Auteur)
Autres auteurs: Hui, Chung-Yuen, Levrard, Benjamin, Jagota, Anand
Format: Article en ligne
Langue:English
Publié: 2015
Accès à la collection:Langmuir : the ACS journal of surfaces and colloids
Sujets:Journal Article Research Support, Non-U.S. Gov't Elastomers Polymers elastomeric polymer
Description
Résumé:We report on a study of the sliding friction of elastomeric surfaces patterned with ridges and channels (and unstructured flat controls), against both smooth and roughened spherical indenters. Against the smooth spherical indenter, all of the structured surfaces have highly reduced sliding friction due to the reduction in actual area of contact. Against roughened spherical indenters, however, the sliding force for structured samples can be up to 50% greater than that of an unstructured flat control. The mechanism of enhanced friction against a rough surface is due to a combination of increased actual area of contact, interlocking between roughness and the surface structure, and attendant dynamic instabilities that dissipate energy
Description:Date Completed 10.05.2016
Date Revised 10.12.2019
published: Print-Electronic
Citation Status MEDLINE
ISSN:1520-5827
DOI:10.1021/la503838e