Nanocrystalline Cellulose: Production and Applications

Dalli, Sai Swaroop; Uprety, Bijaya K.; Samavi, Mahdieh; Singh, Radhika; Rakshit, Sudip Kumar

doi:10.1007/978-3-319-99570-0_17

Cited by 2 publications

(2 citation statements)

References 80 publications

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“…Cellulose is one of the most abundant natural biopolymers, which is composed of D-glucopyranosyl linked by a 1,4-β-Glycoside bond [ 5 , 14 , 15 ]. It is the main component of the plant cell wall, which is often associated with hemicellulose, lignin, and resin [ 16 ]. There are both crystalline and amorphous regions in the cellulose structure.…”

Section: Introductionmentioning

confidence: 99%

“…There is a wide range of sources and cellulose has been successfully separated from some agricultural wastes, such as softwood [ 22 ], flax, soy hulls [ 23 ], sisal fibers [ 24 ], tea waste [ 14 ], walnut shells [ 25 ], potato peel waste [ 26 ], coffee husks [ 27 ], and lemon (Citrus limon) seeds [ 20 ]. Because of its excellent mechanical, optical, non-toxic, biodegradable, and renewable properties, it is more prominent in food packaging and application, which has attracted the extensive attention of researchers [ 16 ]. The CNCs can effectively stabilize the interface, which due to the characteristics of having an anisotropic shape, having a stable electrostatic charge, being both hydrophilic and lipophilic, and being easy to form a dense interface network, make the CNCs show advantages in a Pickering emulsion [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Cellulose Nanocrystals from Jujube Cores by Fractional Purification

Wang

Guo

et al. 2022

Molecules

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Jujube cores are fiber-rich industrial waste. Dewaxing, alkali treatment, bleaching, and sulfuric acid hydrolysis were used to generate cellulose nanocrystals (CNCs) from the jujube cores in this study. The morphological, structural, crystallinity, and thermal properties of the fibers were investigated using FE-SEM, TEM, AFM, FT-IR, XRD, and TGA under various processes. CNCs’ zeta (ζ) potential and water contact angle (WAC) were also investigated. The findings demonstrate that non-fibrous components were effectively removed, and the fiber particles shrunk over time because of many activities. CNCs had a rod-like shape, with a length of 205.7 ± 52.4 nm and a 20.5 aspect ratio. The crystal structure of cellulose Iβ was preserved by the CNCs, and the crystallinity was 72.36%. The temperature of the fibers’ thermal degradation lowered during the operations, although CNCs still had outstanding thermal stability (>200 °C). Aside from the CNCs, the aqueous suspension of CNCs was slightly agglomerated; thus, the zeta (ζ) potential of the CNCs’ suspension was −23.72 ± 1.7 mV, and the powder had high hydrophilicity. This research will be valuable to individuals who want to explore the possibility for CNCs made of jujube cores.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of Cellulose Nanocrystals from Jujube Cores by Fractional Purification

Wang

Guo

et al. 2022

Molecules

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Effect of Nanocellulose Type and Matrix Material on Production of Nanocomposite Films

DURMAZ,

ATES

2023

Cellulose Chem. Technol.

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The objective of this study has been to investigate the chemical structure, thermal and mechanical properties of nanocomposite films, which were produced by combining cellulose nanofibrils (CNFs) and cellulose nanocrystals (CNCs) with different ratios of boric acid (BA) and polyvinyl alcohol (PVA) as a matrix. Nanocomposites reinforced with BA had B–O–B, and B–O–C ether bonds, while the addition of PVA did not influence the chemical bonds of the films. Furthermore, the addition of BA to CNF and CNC films enhanced the thermal resistance of the films at high temperatures, but the addition of PVA declined the thermal properties of these films. Considering the mechanical properties of nanocomposite films, it was determined that adding PVA to CNF and CNC films had a positive impact, unlike BA. Consequently, it was concluded that each BA and PVA have their advantages and can be preferred for specific industrial applications.

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Nanocrystalline Cellulose: Production and Applications

Cited by 2 publications

References 80 publications

Preparation of Cellulose Nanocrystals from Jujube Cores by Fractional Purification

Preparation of Cellulose Nanocrystals from Jujube Cores by Fractional Purification

Effect of Nanocellulose Type and Matrix Material on Production of Nanocomposite Films

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