The Library
Impedance study of poly(methyl methacrylate) – MWCNT composites
Tools
Khattari, Ziad, Maghrabi, Mufeed, McNally, Tony and Jawad, Saadi A. (2012) Impedance study of poly(methyl methacrylate) – MWCNT composites. Physica B-Condensed Matter, 407 (4). pp. 759-764. doi:10.1016/j.physb.2011.12.019 ISSN 0921-4526.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1016/j.physb.2011.12.019
Abstract
The dielectric behavior of polymethyl methacrylate/multi-walled carbon nanocomposites (PMMA/MWCNTs) was investigated using impedance spectroscopy technique. The composites were prepared using melt mixing with MWCNTs loading ranging from 0.01 to 10 wt%. The experimental results showed that the measured impedance reflects the insulating behavior of the host material (PMMA) with no appreciable effects of the filler less than 8.5 wt%. However, for the sample containing 10 wt%, the calculated value of dc conductivity increases with increasing temperature from 2.0×10−6 (Ω m)−1 to attain a value of 4.8×10−6 (Ω m)−1 at 110 °C. The percolation threshold derived from the dielectric data was estimated to be higher than 8.5 wt% and lower than 10 wt%. A temperature dependent electrical relaxation phenomenon was only observed in the sample containing 10 wt% of MWCNTs. The frequency dependence of the ac conductivity data followed a power law.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Library of Congress Subject Headings (LCSH): | Nanocomposites (Materials), Dielectric measurements | ||||||||
Journal or Publication Title: | Physica B-Condensed Matter | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 0921-4526 | ||||||||
Official Date: | 15 February 2012 | ||||||||
Dates: |
|
||||||||
Volume: | 407 | ||||||||
Number: | 4 | ||||||||
Number of Pages: | 6 | ||||||||
Page Range: | pp. 759-764 | ||||||||
DOI: | 10.1016/j.physb.2011.12.019 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Funder: | Jāmiʻah al-Hāshimīyah (Jordan) [Hashemite University] |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |