Theses and Dissertations - UTB/UTPA
Date of Award
5-2009
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Chemistry
First Advisor
Dr. Javier Macossay-Torres
Second Advisor
Dr. Narayan G. Bhat
Third Advisor
Dr. Philip DeLassus
Abstract
Various concentrations of multi-walled carbon nanotubes (MWCNTs) were dispersed in a polystyrene matrix in order to determine the optimal MWCNT concentration that would enhance the thermal properties of the composite. The MWCNTs were dispersed in the polystyrene matrix by high energy sonication and then electrospun. The microstructural characterization such as fiber diameter, fiber orientation, fiber morphology, porosity, cross-section shape, and surface roughness of the nanofibers electrospun from these composites were made by scanning electron microscopy and transmission electron microscopy. Spectroscopic characterization for these nanofibers was conducted using Fourier Transform infrared spectroscopy and Raman spectroscopy was utilized to establish a nanotube/matrix interaction. Thermal characterization such as degradation temperature and glass transition temperature were determined using thermogravimetric analysis and differential scanning calorimetry respectively.
Granting Institution
University of Texas-Pan American
Comments
Copyright 2009 Ana V. R. Ybarra. All Rights Reserved.
https://www.proquest.com/books/electrospinning-polystyrene-reinforced-with-multi/docview/743594602/se-2