Effect of Source on the Properties and Behavior of Cellulose Nanocrystal Suspensions

Christina Schütz, Jonas Van Rie, Samuel Eyley, Alican Gençer, Hans Van Gorp, Sabine Rosenfeldt, Kyongok Kang, Wim Thielemans

Research output: Contribution to journalArticlepeer-review

34 Citations (SciVal)

Abstract

Sulfuric acid hydrolysis of native cellulose fibers results in colloidally stable suspensions of cellulose nanocrystals (CNCs). We have investigated the effect of the cellulose source on the suspension properties of CNCs extracted from cotton and wood sources using a comparable preparation strategy. The structural properties were revealed to be similar within the given standard deviation and prevalent polydispersity, whereas other properties such as liquid crystalline phase behavior, viscosity, diffusion coefficients, and surface tension were found to differ significantly. This study shows that ostensibly similar suspensions may exhibit rather differing behaviors and attempts to interpret this phenomenon. This finding shows that full characterization and a detailed description of the preparation of the nanocrystals used in publications are extremely important and should be reported in detail in all instances.

Original languageEnglish
Pages (from-to)8317-8324
Number of pages8
JournalACS Sustainable Chemistry and Engineering
Volume6
Issue number7
DOIs
Publication statusPublished - 2 Jul 2018

Bibliographical note

Funding Information:
Financial support for this work was provided by Research Foundation−Flanders (FWO) under the Odysseus program Grant G.0C60.13 N, KU Leuven (Grant OT/14/072), and the Province of West-VlaanderenBelgium (W.T.’s Provincial Chair in Advanced Materials). C.S. thanks the Alexander von Humboldt Foundation for financial support through a Feodor Lynen scholarship. The authors are thankful to Prof. Dr. Jan Dhont for fruitful discussions and Dr. Hartmut Kriegs for assistance with the depolarized dynamic light scattering measurements. Prof. Dr. Jan Lagerwall is thanked for the use of the polarized light microscope.

Publisher Copyright:
© 2018 American Chemical Society.

Keywords

  • Cellulose nanocrystals
  • Diffusion coefficients
  • Liquid crystals
  • Phase separation
  • Rheology

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

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