Gel point in CNC dispersion from FT Rheology
Paper in proceedings, 2019

A non-linear analysis via Fourier-Transform Rheology (FT-Rheology) and Large Ampli- tude Oscillatory Shear (LAOS) of cellulose nanocrystals (CNC) dispersions is presented. Dynamic frequency and strain sweep measure- ments were performed for different CNC con- centrations with various parameters (w , g ). The relevance of nonlinear material rheological pa- rameters on flow-field-CNC interactions are initially investigated. This preliminary analy- sis is mainly formed on the magnitude of the stress response nonlinearities. Dependence of concentration on phase transition in CNC while applying strain was investigated. A comparison between the linear viscoelastic dynamic moduli and nonlinearities a steep increase in nonlinear response around the gel point.

Author

Sylwia Wojno

Chalmers, Industrial and Materials Science, Engineering Materials

Gunnar Westman

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Roland Kádár

Chalmers, Industrial and Materials Science, Engineering Materials

Annual Transactions - The Nordic Rheology Society

1601-4057 (ISSN)

Vol. 27 179-184

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Materials Science

Subject Categories

Applied Mechanics

Food Engineering

Fluid Mechanics and Acoustics

More information

Created

11/11/2019