Rheological Behavior of Nanocellulose Aqueous Suspensions

Атаханов, А. А.; Kholmuminov, A. A.; Mamadierov, B. N.; Turdikulov, Islom; Ашуров, Н. Ш.

doi:10.1134/s0965545x20030013

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…Daejung (South Korea) supplied sodium hydroxide (NaOH, 98%). NC (DP = 120, DC = 88%) was obtained from cotton cellulose (Atakhanov et al 2020) and used as raw material for preparing ONC. Deionized water was used in all experiments unless otherwise speci ed.…”

Section: Methods Materials and Chemicalsmentioning

confidence: 99%

Preparation of oxidized nanocellulose by using potassium dichromate

et al. 2023

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Nanocellulose (NC) derivatives are being used in a wide variety of high-quality functional applications.One of them is oxidized nanocellulose (ONC), which has been used in biomedical and pharmaceutical applications due to its biodegradable, biocompatible, hemostatic, and antibacterial properties. In this work, ONC was synthesized using potassium dichromate as an oxidizing agent. The structure of ONC was investigated by means of ultraviolet spectrophotometry (UV), fourier transforms infrared spectroscopy (FTIR), X-ray diffraction (XRD), atomic force microscopy (AFM), and thermogravimetric analysis (TGA). The results showed that the primary hydroxyl groups of NC were selectively oxidized to carboxyl groups and their content of 1.36 mmol/g was achieved. The appearance of a new peak (1721 cm − 1 ) in the FTIR-spectra related to the C = O group was observed. The change of ONC degree of crystallinity (DC) from 88.0-82.5% was revealed and the sizes of the unit cells of both NC and ONC were calculated. The thermal stability of ONC decreased compared to NC. The oxidation process of NC leads to a change in the shape and size of particles from acicular to spherical with a narrow particle size distribution. It was shown that ONC has the ability to accumulate charge on its surface.

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Section: Methods Materials and Chemicalsmentioning

confidence: 99%

Preparation of oxidized nanocellulose by using potassium dichromate

et al. 2023

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“…For example, the extensional viscosity of NC suspensions is significant and can be affected by the concentration of the nanoparticle and the degree of particle alignment. The shape of NC particles affects the yield strength and non-Newtonian character of the suspension flow, as rod-shaped particles show higher viscosity than spherical particles (Hubbe et al, 2017;Atakhanov et al, 2020). The behavior of NC suspensions in a flow depends on the shape, size, particle concentration, temperature, degree of interaction, and kinetic stability.…”

Section: Rheological Propertiesmentioning

confidence: 99%

Nanocellulose from a colloidal material perspective

Sánchez-Salvador¹,

Xu²,

Balea³

et al. 2023

Front. Mater.

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Cellulose nanomaterials present unique properties of interest for their many applications. Their behavior is mainly related to the colloidal properties that determine their self-assembly and stability mechanisms as well as their interaction with the particles present in different matrices. This review shows the state of the art of nanocellulose from a colloidal material perspective, from the approach of how to control these properties and their influence on the final products, such as drug delivery, coatings, nanocomposites, or tissue engineering, emphasizing the role of colloidal behavior in determining their performance.

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“…Some processing technologies, such as printing and extrusion [22,23], have strict requirements for the storage modulus, loss modulus, and loss angle tangent of the NFC dispersions. There is a great deal of research works on the rheological properties of NFC suspensions and the dispersions composed of NFC and other active components [24][25][26][27][28]. The rheological properties of NFC colloids with different solid contents have been studied at different angular frequencies and temperatures.…”

Section: Introductionmentioning

confidence: 99%

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

Miao¹,

Wang²,

Li³

et al. 2024

JRM

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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.

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Rheological Behavior of Nanocellulose Aqueous Suspensions

Cited by 7 publications

References 15 publications

Preparation of oxidized nanocellulose by using potassium dichromate

Preparation of oxidized nanocellulose by using potassium dichromate

Nanocellulose from a colloidal material perspective

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

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