Extraction and Characterization of Cellulosic Nanowhisker Obtained from Discarded Cotton Fibers

This study aimed to characterize cellulose nanowhiskers extracted from discarded cotton fibers. The nanocellulose was characterized by dynamic light scattering, zeta potential, Scanning Transmission Electron Microscopy (STEM), Atomic force microscopy (AFM) and X-ray powder diffraction (XRD). The nan...

Full description

Saved in:
Bibliographic Details
Main Authors: Nascimento, José Heriberto O. do, Luz, Rodrigo F., Galvão, Felipe M.F., Melo, José Daniel D., Oliveira, Fernando R., Ladchumananandasivam, Rasiah, Zille, Andrea
Format: Conference Proceeding
Language:English
Subjects:
cellulose
cotton
nanocellulose
nanocomposite
nanocrystal
nanowhiskes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to characterize cellulose nanowhiskers extracted from discarded cotton fibers. The nanocellulose was characterized by dynamic light scattering, zeta potential, Scanning Transmission Electron Microscopy (STEM), Atomic force microscopy (AFM) and X-ray powder diffraction (XRD). The nanocrystals are characterized by a rod-like morphology with sizes between 100nm and 300nm. The acidic hydrolyses applied to the extract nanocrystals increased the crystallinity index from 72 to 86%. The average length and diameter obtained were 98.1±4.7 and 8.0±3.4nm, respectively. The aspect ratio of the fibers, around 12.3, was lower than the values usually reported in the literature. The dynamic light scattering results were in accordance with the nano crystal dimensions showing an average size of 235nm. Cellulose nanowhiskers obtained from cotton rejected by textile industry due to their abundance, low cost, high crystallinity, strength, low weight and biodegradability, are the ideal candidates for the processing of polymer nanocomposites.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2015.04.001