NIOSHTIC-2 Publications Search
X-ray diffraction as a measurement tool for biodegradability of cellulose nanocrystals.
Production and applications of cellulose nanomaterials. Postek M, Moon RJ, Rudie AW, Bilodeau MA, eds. Peachtree Corners, GA: TAPPI Press, 2013 Jun; :59-60
Parameters of X-ray diffraction (XRD) patterns of cellulose micro-crystals (CMC) and cellulose nanocryslals (CNC) exposed to artificial lung fluid for up to seven days are used to determine their biodegradability. It is observed that on exposure to lungfiuid, both Segal crystallinity and crystallite size for CNC systematically decrease with increase in exposure time, whereas CMCs are largely unaffected. Other effects observed are decreases in the intensities of certain XRD spectra lines with exposure time for CNC. These observations establish XRD as a valuable tool for determining biodegradability a/cellulose CNG.
Nanotechnology; Lung; Exposure-levels; Measurement-equipment; Cellulose-fibers; Author Keywords: Cellulose; nanocrystals; diffiaction; crystallite; crystallinity; measurement
Book or book chapter
Postek-MT; Moon-RJ; Rudie-AW; Bilodeau-MA
Production and applications of cellulose nanomaterials.
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division