Normal Forces between Cellulose Surfaces Measured with Colloidal Probe Microscopy.

Journal Article (Journal Article)

Colloidal probe microscopy was employed to study interactions between cellulose surfaces in aqueous solutions. Hydrodynamic forces must be accounted for in data analysis. Long-range interactions betweeen cellulose surfaces are governed by double-layer forces and, once surfaces contact, by osmotic repulsive forces and viscoelasticity. Increasing the ionic strength decreases surface potentials and increases adhesive forces. Polyelectrolytes cause strong steric repulsion at high surface coverage, where interactions are sensitive to probe velocity. Polymer bridging occurs at low coverage. The conformation of adsorbed polyelectrolytes depends on the polymer concentration. Copyright 2000 Academic Press.

Full Text

Duke Authors

Cited Authors

  • Zauscher, S; Klingenberg, DJ

Published Date

  • September 2000

Published In

Volume / Issue

  • 229 / 2

Start / End Page

  • 497 - 510

PubMed ID

  • 10985829

Electronic International Standard Serial Number (EISSN)

  • 1095-7103

International Standard Serial Number (ISSN)

  • 0021-9797

Digital Object Identifier (DOI)

  • 10.1006/jcis.2000.7008

Language

  • eng