- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Dispersion of multi-walled carbon nanotubes and their...
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Dispersion of multi-walled carbon nanotubes and their incorporation into lignin based fibres Teng, Nai-Yu
Abstract
Softwood Kraft lignin (SKL) and fractions obtained from solvent fractionation were used and characterized. Characterizations showed that F₄SKL, the solubilizable fraction with the highest molecular weight, exhibits association of the lignin molecules. A small amount of F₄SKL facilitated the dispersion of multi-walled carbon nanotubes (MWNTs) in dimethylformamide (DMF) solutions. π-interactions played an important role in the effective dispersal of MWNTs. Raman spectroscopy data also revealed that greater concentrations of F₄SKL could further disperse MWNTs. Also,dispersion of MWNTs affects the performance of the electrospinning process.The mechanical properties and electrical conductivity of the fibres did not improve with incorporating MWNTs.
Item Metadata
Title |
Dispersion of multi-walled carbon nanotubes and their incorporation into lignin based fibres
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
2012
|
Description |
Softwood Kraft lignin (SKL) and fractions obtained from solvent fractionation were used and characterized. Characterizations showed that F₄SKL, the solubilizable fraction with the highest molecular weight, exhibits association of the lignin molecules. A small amount of F₄SKL facilitated the dispersion of multi-walled carbon nanotubes (MWNTs) in dimethylformamide (DMF) solutions. π-interactions played an important role in the effective dispersal of MWNTs. Raman spectroscopy data also revealed that greater concentrations of F₄SKL could further disperse MWNTs. Also,dispersion of MWNTs affects the performance of the electrospinning process.The mechanical properties and electrical conductivity of the fibres did not improve with incorporating MWNTs.
|
Genre | |
Type | |
Language |
eng
|
Date Available |
2012-11-01
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
|
DOI |
10.14288/1.0073371
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
2013-05
|
Campus | |
Scholarly Level |
Graduate
|
Rights URI | |
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International