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ARTICLE

Unraveling the Rheology of Nanocellulose Aqueous Suspensions: A Comprehensive Study on Biomass-Derived Nanofibrillated Cellulose

Mingyue Miao1,#, Fei Wang1,#, Qing Li1, Longchen Tao1, Chenchen Dai1, Yu Liu1, Shujuan Han1, Wenshuai Chen1,*, Ping Lu2,*
1 Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
2 Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey, 08028, USA
* Corresponding Authors: Wenshuai Chen. Email: chenwenshuai@nefu.edu.cn; Ping Lu. Email: lup@rowan.edu
# These authors contributed equally to this work
(This article belongs to this Special Issue: Nanocellulose and Nanocellulose-Derived Functional Materials-2021)

Journal of Renewable Materials https://doi.org/10.32604/jrm.2023.030412

Received 04 April 2023; Accepted 11 May 2023; Published online 01 June 2023

Abstract

The rheological properties of nanocellulose aqueous suspensions play a critical role in the development of nanocellulose-based bulk materials. High-crystalline, high-aspect ratio, and slender nanofibrillated cellulose (NFC) were extracted from four biomass resources. The cellulose nanofibrils and nanofibril bundles formed inter-connected networks in the NFC aqueous suspensions. The storage moduli of the suspensions with different concentrations were higher than their corresponding loss moduli. As the concentration increased, the storage and loss modulus of NFC dispersion increased. When the shear rate increased to a certain value, there were differences in the changing trend of the rheological behavior of NFC aqueous suspensions derived from different biomass resources and the suspensions with different solid concentrations. NFC dispersion’s storage and loss modulus increased when the temperature rose to nearly 80°C. We hope this study can deepen the understanding of the rheological properties of NFC colloids derived from different biomass resources.

Keywords

Biomass resources; nanofibrillated cellulose; high-pressure homogenizer; suspension; rheology properties

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