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Permanent link (DOI): https://doi.org/10.7939/R3ZW1915G

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The Production and Characterization of Cellulose Nanofibrils Open Access

Descriptions

Other title
Subject/Keyword
scanning electron microscopy
rheology
cellulose nanofibrils
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Gao, Yang
Supervisor and department
Boluk, Yaman (Civil and Environmental Engineering)
Choi, Phillip (Chemical and Materials Engineering)
Examining committee member and department
Zeng, Hongbo (Chemical and Materials Engineering)
Boluk, Yaman (Civil and Environmental Engineering)
Narain, Ravin (Chemical and Materials Engineering)
Choi, Phillip (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical engineering
Date accepted
2013-09-24T10:46:04Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
In this thesis, a cellulose nanofibril (CNF) preparation method in the biorefinery platform is described, and the product is characterized and compared to commercially available varieties. CNF is a bundle of cellulose microfibrils with diameter in 5-100 nanometer range and length reaching to micrometer range. The development of value-added co-products is critical for the economic viability of biorefineries which convert biomass to commodity fuels. The raw materials used are two pulps from the NSERC Bioconversion Network. The biomass was converted to CNF by shear mixing and multiple mechanical shearing through a microfluidizer. The produced CNF’s viscous properties, morphology and stability were characterized and compared against two commercially available varieties. The CNF produced from organosolv pulp is a high surface area material with superior viscous properties, and it has great potential in viscosity modification applications.
Language
English
DOI
doi:10.7939/R3ZW1915G
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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