A Comparative Study on AC Conductivity and Dielectric Behavior of Multiwalled Carbon Nanotubes and Polyaniline Coated Multiwalled Carbon Nanotubes Filled High Density Polyethylene-Carbon Black Nanocomposites

Journal Article · Mon Oct 04 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3504296· OSTI ID:21457019

Dinesh, P ^[1]; Renukappa, N M ^[2]; Siddaramaiah, ^[3]; Lee, J H ^[4]; Jeevananda, T ^[5]

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1. Department of Electronics and Communication, Nagarjuna College of Engineering and Technology, Bangalore-562 110 Karnataka (India)
2. Department of Electronics and Communication, Sri Jayachamarajendra College of Engineering, Mysore-570 006, Karnataka (India)
3. Department of Polymer Science and Technology, Sri Jayachamarajendra College of Engineering, Mysore-570 006, Karnataka (India)
4. School of Advanced Materials Engineering, Chonbuk National University, Jeonbuk 561 756 (Korea, Republic of)
5. R and D Centre, Department of Chemistry, R.N.S. Institute of Technology, Bangalore-560 061, Karnataka (India)

This paper presents an experimental investigation on AC conductivity and dielectric behavior of carbon black reinforced high density polyethylene (HDPE-CB) and HDPE-CB filled with multiwalled carbon nanotubes (MWNTs-CB-HDPE) and Polyaniline (PAni) coated MWNTs-CB-HDPE nanocomposites. The electrical properties such as dielectric constant ({epsilon}'), dissipation factor (tan {delta}) and AC conductivity ({sigma}{sub ac}) of nanocomposites have been measured with reference to the weight fraction (0.5 and 1 wt% MWNTs), frequency (75 KHz-30 MHz), temperature (25-90 deg. C) and sea water ageing. The experimental results showed that the increased AC conductivity and dielectric constant of the nanocomposites were influenced by PAni coated MWNTs in HDPE-CB nanocomposites. The value of dielectric constant and tan {delta} decreased with increasing frequency. Further more, above 5 MHz the AC conductivity increases drastically whereas significant effect on tan {delta} was observed in less than 1 MHz.

• OSTI ID: 21457019
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1276; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON
CARBON BLACK
CARBON FIBERS
COMPOSITE MATERIALS
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
DIMENSIONLESS NUMBERS
DISSIPATION FACTOR
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
FIBERS
FREQUENCY DEPENDENCE
FREQUENCY RANGE
KHZ RANGE
MATERIALS
MHZ RANGE
NANOSTRUCTURES
NANOTUBES
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERMITTIVITY
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
PNICTIDES
POLYETHYLENES
POLYMERS
POLYOLEFINS
REFRACTORY METAL COMPOUNDS
REINFORCED MATERIALS
REINFORCED PLASTICS
SYNTHETIC MATERIALS
TANTALUM COMPOUNDS
TANTALUM NITRIDES
TRANSITION ELEMENT COMPOUNDS