NDLI: Effect of Polyaniline Functionalized Carbon Nanotubes Addition on the Positive Temperature Coefficient Behavior of Carbon Black/High-Density Polyethylene Nanocomposites

Content Provider	IEEE Xplore Digital Library
Author	Kalappa, P. Joong-Hee Lee Rashmi, B.J. Venkatesha, T.V. Pai, K.V. Wang Xing
Copyright Year	2002
Abstract	The influence of addition of polyaniline functionalized multiwalled carbon nanotubes (PANI-MWNTs) on the positive temperature coefficient (PTC) characteristics of carbon black (CB) filled high-density polyethylene (HDPE) nanocomposite materials have been studied. Polymer nanocomposites were prepared by the combined solution and melt-mixing process. The experimental results showed that the PTC intensity and maximum resistivity of the hybrid nanocomposites were obviously influenced by the polyaniline functionalization of multiwalled carbon nanotubes (MWNTs). A noticeable PTC of resistivity was observed for PANI-MWNTs/CB/HDPE hybrid nanocomposites near the melting point of HDPE. This is due to the significant volume expansion near the melting point of the HDPE in presence of hybrid fillers and a sudden increase of the resistivity due to the disconnection of the conductive paths. The PTC effect of CB/HDPE composites can be effectively modified by the addition of PANI-MWNTs.
Sponsorship	IEEE Nanotechnology Council
Starting Page	223
Ending Page	228
Page Count	6
File Size	579355
File Format	PDF
ISSN	1536125X
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Carbon nanotubes Temperature Polyethylene Nanocomposites Polymers Conducting materials Conductivity Chemicals Mechanical factors Organic materials positive temperature coefficient (PTC) Carbon black (CB) carbon nanotube (CNT) electrical properties polyaniline (PANI) polymer nanocomposites carbon nanotube carbon black polyaniline positive temperature coefficient
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Electrical and Electronic Engineering Computer Science Applications

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