Electrical properties of polyethylene composite films filled with nickel powder and short carbon fiber hybrid filler

Title
Electrical properties of polyethylene composite films filled with nickel powder and short carbon fiber hybrid filler
Authors
V. S. Mironov김성륜박민
Keywords
conductive polymer comosites; hybrid filler; fiber contact model; contact resistance
Issue Date
2013-04
Publisher
Carbon Letters
Citation
VOL 14, NO 2, 105-109
Abstract
Effects of the amount of nickel powder (Ni) in Ni-carbon fiber (CF) hybrid filler systems on the conductivity(or resistivity) and thermal coefficient of resistance (TCR) of filled high density polyethylene were studied. Increases of the resistivity and TCR with increasing Ni concentration at a given hybrid filler content were observed. Using the fiber contact model, we showed that the main role of Ni in the hybrid filler system is to decrease the interfiber contact resistance when Ni concentration is less than the threshold point. The formation of structural defects leading to reduced reinforcing effect resulted in both a reduction of strength and an increase of the coefficient of thermal expansion in the composite film; these changes are responsible for the increases of both resistivity and TCR with increasing Ni concentration in the hybrid filler system.
URI
http://pubs.kist.re.kr/handle/201004/45232
ISSN
19764251
Appears in Collections:
KIST Publication > Article
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