Trifkovic, MilanaSundararaj, UttandaramanAhmadian Hoseini, Amir Hosein2016-09-282016-09-2820162016Ahmadian Hoseini, A. H. (2016). Conductive Nanocomposites of Polystyrene/Polyamide 6/Carbon Nanotube: The role of Polymer/Filler Interaction on Blend Morphology and Electrical Properties Evolution (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25414http://hdl.handle.net/11023/3345This thesis advances the field of conductive filler/polymer composites (CPCs) by providing insight to this critical question: what is the significance of polymer/filler interaction on morphology and electrical properties of CPCs? Carbon nanotubes (CNTs) as conductive filler and two immiscible polymers, i.e. polystyrene (PS) and polyamide 6 (PA6), as matrix were melt blended with different compositions. The generated blends were investigated morphologically via light transmission, scanning electron, and transmission electron microscopy techniques; and electrically including DC conductivity, EMI shielding, imaginary permittivity and current-voltage characteristic. It was found that high interaction between PA6 and CNT led to excellent dispersion state, but hindered conductive network formation; while in more agglomerated PS/CNT composites, CNTs percolated much more readily. In PS/PA6/CNT blends, CNTs were selectively localized in PA6 phase. Though CNT-rich phase was not co-continuous, percolation still occurred, and higher electrical conduction was obtained.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.Engineering--ChemicalPolymer nanocompositeCarbon NanotubeElectrical propertiesInterfacial interactionDispersion stateSelective localizationmaster thesis10.11575/PRISM/25414