The new cellulose-based nanofibers formed by size reduction process of native cellulose fibers by TEMPO-mediated oxidation have potential application as environmentally friendly and new bio-based nanomaterials in high-tech fields.

Jul 13, 2007 · Never-dried and once-dried hardwood celluloses were oxidized by a 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated system, and highly crystalline and individualized cellulose nanofibers, dispersed in water, were prepared by mechanical treatment of the oxidized cellulose/water slurries.

Feb 10, 2025 · Our research in this paper centers on elucidating the dispersion mechanism of CNF ultrafine powders. We suggest that CNF ultrafine powders dried from n-butanol form a loosely porous mesoporous structure.

Nov 5, 2020 · In this study, we report, for the first time, a unique approach to the fabrication of top and bottom CNC-coated TEMPO-CNF films (termed CNC/TEMPO-CNF/CNC) with optical transparency, mechanical strength, thermal stability, and gas barrier properties.

Apr 24, 2021 · TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidized cellulose nanofibers (TOCNFs), which are derived from abundantly available wood biomass, possess uniform and ultrafine diameters of 3–10 nm and high aspect ratios, and are functionalized with carboxyl groups.

TEMPO-oxidized cellulose nanofibers (TOCNFs) offer a combination of unique properties: high aspect ratios, large surface area, tunable surface chemistry, robust mechanical strength, and biocompatibility.

Feb 1, 2024 · TEMPO-mediated oxidized cellulose nanofibers are deduced from enormously available wood biomass and functionalized with carboxyl groups. The preparation procedure of TOCNFs is more environmentally friendly compared to …

Nov 16, 2020 · TEMPO cellulose nanofibril (TEMPO-CNF) suspensions in the viscoelastic regime are often used as rheological modifiers and additives to prepare composites and hydrogels. Therefore, understanding their rheology is important, including the role of …

TEMPO酸化セルロースナノファイバー TEMPO-oxidized Cellulose Nanofibers Abstract: Native celluloses can be converted to individual nanofibers 3-4 nm in width and at least several microns in length, by TEMPO-mediated oxidation and the successive disintegration in water. Significant amounts of C6 carboxylate groups are

May 26, 2024 · Cellulose nanofibrils (CNFs) are particles with a high aspect ratio. Typically, chemically pre-treated CNFs (containing anionic or cationic charged groups) consist of long fibrils (up to 2 μm) with very low thickness (less than 10 nm). Derived from their high aspect ratio, CNFs form strong hydrogels with high elasticity at low concentrations.