Rheology of nanocellulose-rich aqueous suspensions: A review

Martin A. Hubbe*, Pegah Tayeb, Michael Joyce, Preeti Tyagi, Margaret Kehoe, Katarina Dimic-Misic, Lokendra Pal

*Corresponding author for this work

Research output: Contribution to journalReview ArticleScientificpeer-review

63 Citations (Scopus)
85 Downloads (Pure)

Abstract

The flow characteristics of dilute aqueous suspensions of cellulose nanocrystals (CNC), nanofibrillated cellulose (NFC), and related products in dilute aqueous suspensions could be of great importance for many emerging applications. This review article considers publications dealing with the rheology of nanocellulose aqueous suspensions in the absence of matrix materials. In other words, the focus is on systems in which the cellulosic particles themselves "dependent on their morphology and the interactive forces between them" largely govern the observed rheological effects. Substantial progress in understanding rheological phenomena is evident in the large volume of recent publications dealing with such issues including the effects of flow history, stratification of solid and fluid layers during testing, entanglement of nanocellulose particles, and the variation of inter-particle forces by changing the pH or salt concentrations, among other factors. Better quantification of particle shape and particle-to-particle interactions may provide advances in future understanding. Despite the very complex morphology of highly fibrillated cellulosic nanomaterials, progress is being made in understanding their rheology, which supports their usage in applications such as coating, thickening, and 3D printing.

Original languageEnglish
Pages (from-to)9556-9661
Number of pages106
JournalBioResources
Volume12
Issue number4
DOIs
Publication statusPublished - 1 Nov 2017
MoE publication typeA2 Review article in a scientific journal

Keywords

  • Bacterial cellulose
  • Cellulose nanocrystals
  • Colloidal forces
  • Nanocellulose hydrogels
  • Nanofibrillated cellulose
  • Suspension viscosity

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    Hubbe, M. A., Tayeb, P., Joyce, M., Tyagi, P., Kehoe, M., Dimic-Misic, K., & Pal, L. (2017). Rheology of nanocellulose-rich aqueous suspensions: A review. BioResources, 12(4), 9556-9661. https://doi.org/10.15376/biores.12.4.Hubbe