Easy production of acetylated cellulose nanofibers from sisal fibers by conventional high-speed blender

Sukmawan, Romi; Kusmono, Kusmono; Wildan, Muhammad Waziz

doi:10.1007/s13399-023-04428-x

Cited by 5 publications

(1 citation statement)

References 89 publications

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“…The physical and chemical properties of ramie fibers are mainly determined by cellulose, which plays a decisive role in the corresponding RFRP, including moisture absorption properties, hydrolysis properties after moisture absorption, and corresponding mechanical properties [ 7 , 8 ]. Ramie fiber has a large cellulose (hydrophilic group) content and contains a large number of hydroxyl groups [ 9 ]. The polarity of cellulose and the swelling and dissolving properties of cellulose are related to the hydroxyl groups on the cellulose macromolecules, and the elongated cavities in the fibers and the cracks on the surface determine that it has strong hygroscopicity [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Effect on Ramie-Fiber-Reinforced Polymer Composite Plates: Water Uptake and Mechanical Properties

et al. 2023

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Ramie-fiber-reinforced polymer composites (RFRP) have the advantages of low price and low energy consumption, but they have high hydrophilicity due to their special chemical composition. In order to study the effect of water absorption on the performance degradation of RFRP in a hydrothermal environment, the authors prepared RFRP sheets by compression molding. Manufactured composites were exposed to a hydrothermal environment with a temperature of 40 °C and a humidity of 50% RH, 85% RH and 98% RH to study the water absorption and diffusion, mechanical properties (tensile properties, flexural properties and shear properties) of the RFRP, and their mechanical properties after drying. The research shows that the equilibrium moisture absorption rate of RFRP is mainly affected by the ambient humidity. The moisture absorption and diffusion of ramie-fiber-reinforced polymer composites (RFRP) in a hydrothermal environment conform to Fick’s law. Before reaching the moisture absorption equilibrium (1~2 weeks), the mechanical properties decline rapidly, and then tend to be flat, and the mechanical properties of the RFRP decrease significantly with the increase in humidity; the water molecules reduce the interfacial bonding performance and the modulus degradation degree of RFRP in the hydrothermal environment is greater than that of strength. After the samples were completely dried, the mechanical properties of the RFRP rebounded greatly, but less than the initial value, and the hydrothermal environment produced irreversible changes to the substrates.

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Section: Introductionmentioning

confidence: 99%

Hydrothermal Effect on Ramie-Fiber-Reinforced Polymer Composite Plates: Water Uptake and Mechanical Properties

et al. 2023

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Upcycling Food By‐products: Characteristics and Applications of Nanocellulose

Kim,

Doh

2024

Chemistry An Asian Journal

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Rising global food prices and the increasing prevalence of food insecurity highlight the imprudence of food waste and the inefficiencies of the current food system. Upcycling food by‐products holds significant potential for mitigating food loss and waste within the food supply chain. Food by‐products can be utilized to extract nanocellulose, a material that has obtained substantial attention recently due to its renewability, biocompatibility, bioavailability, and a multitude of remarkable properties. Cellulose nanomaterials have been the subject of extensive research and have shown promise across a wide array of applications, including the food industry. Notably, nanocellulose possesses unique attributes such as a surface area, aspect ratio, rheological behavior, water absorption capabilities, crystallinity, surface modification, as well as low possibilities of cytotoxicity and genotoxicity. These qualities make nanocellulose suitable for diverse applications spanning the realms of food production, biomedicine, packaging, and beyond. This review aims to provide an overview of the outcomes and potential applications of cellulose nanomaterials derived from food by‐products. Nanocellulose can be produced through both top‐down and bottom‐up approaches, yielding various types of nanocellulose. Each of these variants possesses distinctive characteristics that have the potential to significantly enhance multiple sectors within the commercial market.

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Development of Novel Natural Deep Eutectic Solvent for Cellulose Nanofibrillation of Orange Peel via New Surface Functionalization

Baheg,

Abdel-Hakim,

El-Wakil

et al. 2023

ACS Sustainable Chem. Eng.

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In this study, novel deep eutectic solvents (DESs) based on different ratios of glutamic and tartaric acids were used for the production of cellulose nanofibrils (CNFs). Orange peel (OP) was used as the cellulosic raw material. High-speed mechanical stirring and ultrasonication were applied in the nanofibrillation process to save energy and preserve the CNF crystalline structure. A high yield of CNFs, up to 95.8%, was produced without scarifying the cellulose crystalline structure. CNFs showed a diameter range of 10.55–15.32 nm and a length range of 211–451 nm. The functionalization of the CNF surface was evidenced by several techniques such as elemental analysis, Fourier-transformed infrared spectroscopy, zeta potential, and determination of the carboxyl content. The zeta-potential values of CNFs ranged from −17.77 to −37.97 mV and had a carboxyl content range of 0.40–0.61 mmol/g, indicating the surface functionalization of CNFs. The optimal CNFs obtained were those pretreated by DESs (G2T), having a glutamic acid/tartaric acid ratio of 2:1. The surface modification of CNFs by DESs (G2T) created antibacterial activity against Gram-positive bacteria.

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Easy production of acetylated cellulose nanofibers from sisal fibers by conventional high-speed blender

Cited by 5 publications

References 89 publications

Hydrothermal Effect on Ramie-Fiber-Reinforced Polymer Composite Plates: Water Uptake and Mechanical Properties

Hydrothermal Effect on Ramie-Fiber-Reinforced Polymer Composite Plates: Water Uptake and Mechanical Properties

Upcycling Food By‐products: Characteristics and Applications of Nanocellulose

Development of Novel Natural Deep Eutectic Solvent for Cellulose Nanofibrillation of Orange Peel via New Surface Functionalization

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