Friction between cellulose surfaces measured with colloidal probe microscopy

Colloidal probe microscopy was employed to study sliding friction between model cellulose surfaces in aqueous solutions. Regardless of scan size, friction exhibits irregular stick-slip behavior related to surface roughness. At small scan sizes (∼10 nm), the coefficient of friction decreases with increasing load. Above a critical scan size of about 100 nm - corresponding to the average size of asperities on one of the model surfaces - friction forces are independent of scan size, but depend on the load. Hydrodynamic forces contribute little to friction. Small amounts of high molecular weight, polyelectrolytes decrease significantly sliding friction between cellulose surfaces. © 2001 Elsevier Science B.V.

Full Text

Duke Authors

Cited Authors

  • Zauscher, S; Klingenberg, DJ

Published Date

  • 2001

Published In

Volume / Issue

  • 178 / 1-3

Start / End Page

  • 213 - 229

International Standard Serial Number (ISSN)

  • 0927-7757

Digital Object Identifier (DOI)

  • 10.1016/S0927-7757(00)00704-4