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Carbon black and graphite filled conducting nanocomposite films for temperature sensor applications

Authors
  • Yurddaskal, Metin1, 2
  • Erol, Mustafa3
  • Celik, Erdal2, 4, 5
  • 1 Dokuz Eylul University, The Graduate School of Natural and Applied Sciences, Izmir, Turkey , Izmir (Turkey)
  • 2 Dokuz Eylul University, Center for Fabrication and Application of Electronic Materials, Izmir, Turkey , Izmir (Turkey)
  • 3 Izmir Katip Celebi University, Department of Materials Science and Engineering, Izmir, Turkey , Izmir (Turkey)
  • 4 Dokuz Eylul University, Department of Metallurgical and Materials Engineering, Izmir, Turkey , Izmir (Turkey)
  • 5 Dokuz Eylul University, Department of Nanoscience and Nanoengineering, Izmir, Turkey , Izmir (Turkey)
Type
Published Article
Journal
Journal of Materials Science Materials in Electronics
Publisher
Springer-Verlag
Publication Date
Mar 14, 2017
Volume
28
Issue
13
Pages
9514–9518
Identifiers
DOI: 10.1007/s10854-017-6695-y
Source
Springer Nature
Keywords
License
Yellow

Abstract

Conductive polymer composites have attracted remarked interest over the last decades and employed as functional materials in many important applications due to their ease in production, chemical durability and low weights. Regarding to this motivation, conductive polymer nanocomposite films were produced to be utilized as temperature sensors. Relatively low cost conductive fillers such as graphite and carbon black were employed to produce the films. The fillers with various concentrations were added in to styrene acrylic copolymer emulsion and subsequently deposited on glass substrates. The films were dried at 80 °C for 1 h in air. The individual effects of graphite and carbon black fillers on the percolation behavior were investigated. The percolation thresholds were recorded as 17 and 20 wt% for carbon black and graphite, respectively. As a second step, which is defined as co-percolation, composite films including both graphite and carbon black fillers with various amounts were also produced to scrutinize the synergetic effects of the fillers. Structural, electrical and thermo-resistive properties of the films were evaluated in details. Thanks to the synergetic effect of the fillers, lower percolation thresholds and enhanced thermo-resistive properties were obtained and consequently the composites developed in this study are good candidates for temperature sensors.

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