Ultrasonication of spray- and freeze-dried cellulose nanocrystals in water

Ultrasonication of spray- and freeze-dried cellulose nanocrystals in water Journal of Colloid and Interface Science 516 (2018) 23–33 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Regular Article Ultrasonication of spray- and freeze-dried cellulose nanocrystals in water Quentin Beuguel, Jason R. Tavares, Pierre J. Carreau, Marie-Claude Heuzey Department of Chemical Engineering, CREPEC – Research Center on High Performance Polymer and Composite Systems, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada graphical a bstract article i nfo abstract Article history: The structural and rheological properties of aqueous suspensions of spray-dried cellulose nanocrystals Received 16 October 2017 (CNCs) were investigated and compared to those of freeze-dried. The cellulose nanocrystals were Revised 8 January 2018 obtained from sulfuric acid hydrolysis of wood pulp. Ultrasonication was used to disperse cellulose Accepted 9 January 2018 nanocrystals in Milli-Q water and the power applied during ultrasonication was shown to be the control- Available online 16 January 2018 ling parameter for their dispersion, more than total energy. Dynamic light scattering measurements showed a decrease of the average hydrodynamic diameter down to the same limiting value, i.e. 75 Keywords: nm, for both spray and freeze-dried cellulose nanocrystals. Since the same maximum dispersion state Cellulose nanocrystals (CNCs) was reached for both CNC http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Colloid and Interface Science Elsevier

Ultrasonication of spray- and freeze-dried cellulose nanocrystals in water

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Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Inc.
ISSN
0021-9797
eISSN
1095-7103
D.O.I.
10.1016/j.jcis.2018.01.035
Publisher site
See Article on Publisher Site

Abstract

Journal of Colloid and Interface Science 516 (2018) 23–33 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Regular Article Ultrasonication of spray- and freeze-dried cellulose nanocrystals in water Quentin Beuguel, Jason R. Tavares, Pierre J. Carreau, Marie-Claude Heuzey Department of Chemical Engineering, CREPEC – Research Center on High Performance Polymer and Composite Systems, Polytechnique Montreal, Montreal, QC H3T 1J4, Canada graphical a bstract article i nfo abstract Article history: The structural and rheological properties of aqueous suspensions of spray-dried cellulose nanocrystals Received 16 October 2017 (CNCs) were investigated and compared to those of freeze-dried. The cellulose nanocrystals were Revised 8 January 2018 obtained from sulfuric acid hydrolysis of wood pulp. Ultrasonication was used to disperse cellulose Accepted 9 January 2018 nanocrystals in Milli-Q water and the power applied during ultrasonication was shown to be the control- Available online 16 January 2018 ling parameter for their dispersion, more than total energy. Dynamic light scattering measurements showed a decrease of the average hydrodynamic diameter down to the same limiting value, i.e. 75 Keywords: nm, for both spray and freeze-dried cellulose nanocrystals. Since the same maximum dispersion state Cellulose nanocrystals (CNCs) was reached for both CNC

Journal

Journal of Colloid and Interface ScienceElsevier

Published: Apr 15, 2018

References

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