Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2615
Title: Electric Field Effects on Cnts/Vinyl Ester Suspensions and the Resulting Electrical and Thermal Composite Properties
Authors: Yurdakul, Hilmi
Seyhan, Abdullah Tuğrul
Turan, Servet
Tanoğlu, Metin
Bauhofer, Wolfgang
Schulte, Karl
Keywords: Polymer matrix composites
Carbon nanotubes
Electrical properties
Anisotropy
Transmission electron microscopy
Publisher: Elsevier Ltd.
Source: Yurdakul, H., Seyhan, A. T., Turan, S., Tanoğlu, M., Bauhofer, W., and Schulte, K. (2010). Electric field effects on CNTs/vinyl ester suspensions and the resulting electrical and thermal composite properties. Composites Science and Technology, 70(14), 2102-2110. doi:10.1016/j.compscitech.2010.08.007
Abstract: In this study, electrical conductivity of a vinyl ester based composite containing low content (0.05, 0.1 and 0.3wt.%) of double and multi-walled carbon nanotubes with and without amine functional groups (DWCNTs, MWCNTs, DWCNT-NH2 and MWCNT-NH2) was investigated. The composite with pristine MWCNTs was found to exhibit the highest electrical conductivity. Experiments aimed to induce an aligned conductive network with application of an alternating current (AC) electric field during cure were carried out on the resin suspensions with MWCNTs. Formation of electric anisotropy within the composite was verified. Light microscopy (LM), scanning electron (SEM) and transmission electron microscopy (TEM) were conducted to visualize dispersion state and the extent of alignment of MWCNTs within the polymer cured with and without application of the electric field. To gain a better understanding of electric field induced effects, glass transition temperature (Tg) of the composites was measured via Differential Scanning Calorimetry (DSC). It was determined that at 0.05wt.% loading rate of MWCNTs, the composites, cured with application of the AC electric field, possessed a higher Tg than the composites cured without application of the AC electric field. © 2010 Elsevier Ltd.
URI: http://doi.org/10.1016/j.compscitech.2010.08.007
http://hdl.handle.net/11147/2615
ISSN: 0266-3538
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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