Nanocellulose Dewatering and Drying: Current State and Future Perspectives

Scott Sinquefield, Peter Ciesielski, Kai Li, Douglas Gardener, Soydan Ozcan

Research output: Contribution to journalArticlepeer-review

85 Scopus Citations

Abstract

The knowledge base for nanocellulose (NC) has grown exponentially over the past two decades and continues to expand with the increasing number of potential applications demonstrated in the literature and the patent space. NC has multiple forms depending on the starting cellulose source and the specific process used to produce it. Its high degree of surface reactivity makes it an ideal support structure for a wide variety of functional groups, leading to the ability to engineer materials for very specific applications. However, removing water from an NC suspension, e.g., dewatering and drying, while retaining the nanoscale properties of the NC remains a significant challenge to successful commercialization of NC materials. Processes for dewatering and drying of NC are desirable because of the high transport costs of shipping dilute aqueous suspensions, as well as end-use application requirements. Therefore, the development of nondestructive, cost-effective, scalable, and environmentally friendly dewatering and drying processes is important for commercial deployment of NC applications. This review addresses the current state of published knowledge on NC dewatering and drying and identifies research gaps that could be further explored in a precompetitive context to accelerate commercialization.

Original languageAmerican English
Pages (from-to)9601-9615
Number of pages15
JournalACS Sustainable Chemistry and Engineering
Volume8
Issue number26
DOIs
StatePublished - 6 Jul 2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 American Chemical Society.

NREL Publication Number

  • NREL/JA-2700-76238

Keywords

  • Cellulose nanocrystals
  • Cellulose nanofibrils
  • Dewatering
  • Drying
  • Nanocellulose

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