ERA

Download the full-sized PDF of An investigation on interaction between nano crystalline cellulose and water-soluble polymers in aqueous solutionsDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R36G76

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

An investigation on interaction between nano crystalline cellulose and water-soluble polymers in aqueous solutions Open Access

Descriptions

Other title
Subject/Keyword
NCC, polymer, depletion, CMC, HEC
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Khalili, Zahra
Supervisor and department
Dr. Yaman Boluk ( Civil and Environmental Engineering)
Dr. Philip Choi (Chemical and Materials Engineering)
Examining committee member and department
Dr. Yaman Boluk ( Civil and Environmental Engineering)
Dr. Qi Liu (Chemical and Materials Engineering)
Dr. Philip Choi (Chemical and Materials Engineering)
Department
Department of Chemical and Materials Engineering
Specialization
Chemical Engineering
Date accepted
2013-01-27T07:23:49Z
Graduation date
2013-06
Degree
Master of Science
Degree level
Master's
Abstract
In this research, the phase behavior of rod like nano crystalline cellulose (NCC) suspensions has been investigated. NCC suspensions with concentration at 1-4wt.% exhibited isotropic behavior,a mixture of isotropic-nematic behaviorat 4 - 6wt.%, and nematic phase behaviorat 7- 10wt.%. Then, both phase and rheological behaviors of NCC suspensions were investigated in the presence of polymers such as hydroxyethyl cellulose (HEC), dextran, and carboxymethyl cellulose (CMC) solutions. HEC revealed noticeable impact on phase behavior and induced depletion interaction in NCC-HEC mixtures. Dextran, because of its branched structure did not show thickening behavior in NCC-dextran mixtures. Light polarization and rheological tests showed that CMC can also induce depletion interaction in NCC-CMC mixtures. The effect of ionic strength was also studied by adding NaCl in CMC solutions.Increasing NaCl concentration caused considerable variation in rheological behavior of the samples and they turned into gel-like samples at high NaCl concentrations.
Language
English
DOI
doi:10.7939/R36G76
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.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-04-28T21:28:10.257+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 2055281
Last modified: 2015:10:12 20:38:46-06:00
Filename: Khalili_Zahra_Spring 2013.pdf
Original checksum: abe0d2a1ff221587922ea1568f7b6d2d
Well formed: true
Valid: true
File author: Bahar
Page count: 113
File language: en-US
Activity of users you follow
User Activity Date