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Friction and forces between cellulose model surfaces: A comparison

TitleFriction and forces between cellulose model surfaces: A comparison
Publication TypeJournal Article
Year of Publication2006
AuthorsStiernstedt, J, Nordgren, N, Wagberg, L, Brumer, H, Gray, DG, Rutland, MW
JournalJOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume303
Pagination117-123
Date PublishedNOV 1
Type of ArticleArticle
ISSN0021-9797
Abstract

Four different cellulose model surfaces, and one silica surface, have been studied by means of atomic force microscopy (AFM). The normal interactions have been found to consist of a longer range double layer force with a short range steric interaction, the nature of which is extensively discussed. Both the surface charge and range of the steric force depend on the type of cellulose substrate used, as does the magnitude of the adhesion. Studies of friction reveal that surface roughness is the determining factor for the friction coefficient, with which it increases monotonically. The absolute value, however, is determined by the surface chemistry. All studied cellulose surfaces show similar behavior in response to xyloglucan addition. (c) 2006 Published by Elsevier Inc.

DOI10.1016/j.jcis.2006.06.070