Journal article
Highly dispersed and electrically conductive polycarbonate/oxidized carbon nanofiber composites for electrostatic dissipation applications
Carbon (New York), Vol.48(13), pp.3846-3857
2010
Handle:
https://hdl.handle.net/2376/114478
Abstract
The influence of low cost, commercially oxidized carbon nanofibers (ox-CNFs) on the morphological, thermal, mechanical and electrical properties of polycarbonate (PC) composites was examined. Using a simple solution mixing process leads to good dispersion and high packing density of CNFs in the resultant composites. The composite materials exhibit a dramatic improvement in the DC conductivity; for example, increasing from 2.36
×
10
−14
S/m for PC to ca. 10
−2
S/m for the composite at only 3.0 wt.% of CNFs, and exhibits a very fast static charge dissipation rate. Dynamic mechanical analysis showed a remarkable increase in storage modulus (282%) at 165
°C, compared to pure PC. Thermogravimetric analysis showed that thermal stability of the composites increased by 54
°C compared to the pure PC. To our knowledge, the measured electrical conductivity and thermal properties for PC/CNF are the highest values yet reported for PC/CNF composites at comparable loadings. The AC/DC conductivity is shown to play an important role to predict the state of dispersion.
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Details
- Title
- Highly dispersed and electrically conductive polycarbonate/oxidized carbon nanofiber composites for electrostatic dissipation applications
- Creators
- S KumarB LivelyL.L SunB LiW.H Zhong
- Publication Details
- Carbon (New York), Vol.48(13), pp.3846-3857
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547746001842
- Language
- English
- Resource Type
- Journal article