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X-ray diffraction as a measurement tool for biodegradability of cellulose nanocrystals.

Authors
Seehra-MS; Stefaniak-AB
Source
Production and applications of cellulose nanomaterials. Postek M, Moon RJ, Rudie AW, Bilodeau MA, eds. Peachtree Corners, GA: TAPPI Press, 2013 Jun; :59-60
NIOSHTIC No.
20043114
Abstract
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.
Keywords
Nanotechnology; Lung; Exposure-levels; Measurement-equipment; Cellulose-fibers; Author Keywords: Cellulose; nanocrystals; diffiaction; crystallite; crystallinity; measurement
Publication Date
20130601
Document Type
Book or book chapter
Editors
Postek-MT; Moon-RJ; Rudie-AW; Bilodeau-MA
Fiscal Year
2013
NTIS Accession No.
NTIS Price
ISBN No.
9781595102249
Identifying No.
M102013
NIOSH Division
DRDS
Source Name
Production and applications of cellulose nanomaterials.
State
WV; GA
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