Jun 7, 2021 · Results showed that CNF fibrillation was promoted as times of passes increased in microfluidization, and CNFs pretreated by enzyme possessed shorter length. Crystallinity of CNFs was related to...

In this study, a carboxylated nanocellulose (i.e., 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO)-oxidized cellulose nanofibril (TEMPO-CNF)) was prepared from corn stover and characterized by...

Sep 1, 2019 · FTIR and XRD analyses were performed to characterize the CNF films. The relationship between the cross-linking and the crystallinity index of CNF was described.

Mar 31, 2023 · The Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric (TG), and dynamic light scattering (DLS) can reveal …

Feb 21, 2022 · FTIR spectra of the CNF, CNF/silica, h-sCNF, and h-CNF nanocomposites in the range of 4000–600 cm −1, and measured absorption peak areas of the alkyl group (3038–2788, 1419–1400 cm −1) and the silane group (863–740 cm −1).

Cellulose nanofibrils (CNF) modified polyurethane foam (PUF) has great potential as a structural insulated material in wood construction industry. In this study, PUF modified with spray-dried...

We report remarkable adsorption capacities of graphene oxide-incorporated 2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-modified cellulose nanofibrils (CNF) composite films for Basic Violet 1...

Feb 15, 2023 · Nanoscale infrared (IR) spectroscopy and microscopy, enabling the acquisition of IR spectra and images with a lateral resolution of 20 nm, is employed to chemically characterize individual cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) to elucidate if the CNCs and CNFs consist of alternating crystalline and amorphous domains ...

Dec 1, 2023 · The prepared CNFs were described via various techniques such as FTIR, SEM, TGA, and XRD. X-ray analysis demonstrated that N-CNF, K-CNF, and G-CNF consisted of a crystalline domain of crystallinity index 0.45, 0.41, and 0.55, respectively. K-CNF showed marginally lower thermal stability than N-CNF influenced by its crystalline properties.

Mar 3, 2025 · The isolated CNF is then characterized using FTIR, PSA, TEM, and Keyence Optical Microscope methods. This study incorporated CNF into rigid foam polyurethane (RF-PU) composites at four different concentrations: 0%wt, 1%wt, 1.5%wt, and 2%wt of CNF.