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Preferential Positioning of gamma-Ray Treated Multi-Walled Carbon Nanotubes in Polyamide 6,6/Poly(p-phenylene ether) Blends

Title
Preferential Positioning of gamma-Ray Treated Multi-Walled Carbon Nanotubes in Polyamide 6,6/Poly(p-phenylene ether) Blends
Author(s)
Mun, Sung CikKim, MokwonLee, Choon SooLee, Min HeeSon, YounggonPark, O. Ok
Issued Date
2013-04
Citation
Macromolecular Research, v.21, no.4, pp.356 - 361
Type
Article
Author Keywords
carbon nanotubesgamma raysurface treatmentpreferential positioning
Keywords
ELECTRICAL-CONDUCTIVITYRHEOLOGICAL PROPERTIESCHEMICAL-MODIFICATIONCOMPOSITESIRRADIATIONFUNCTIONALIZATIONNANOCOMPOSITESDEGRADATION
ISSN
1598-5032
Abstract
Morphological characteristics and electrical conductivity of polyamide 6,6/poly(p-phenylene ether)/multi-walled carbon nanotube (PA66/PPE/MWCNT) ternary nanocomposites were investigated. The MWCNTs were modified by 60Co gamma ray (γ-ray) irradiation under a dry condition and O2 atmosphere, which introduces oxygen-containing functional groups on the surfaces of the MWCNTs and thereby provides better compatibility with the hydrophilic PA66 phase. It was observed that the MWCNTs are preferentially positioned in the continuous PA66 matrix, whereas PPE domains are almost free of MWCNTs. Since PA66 consists of a continuous phase and the MWCNTs are preferentially positioned in the PA66 phase, electrical conductivity of PA66/PPE/MWCNT ternary composites is higher than that of PA66/MWCNT binary composites at the same MWCNT content. It was observed that raising the processing temperature and increasing the mixing time were effective means of improving the electrical conductivity of the composites, via enhancement of MWCNT dispersion. [Figure not available: see fulltext.] © 2013 The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht.
URI
http://hdl.handle.net/20.500.11750/3245
DOI
10.1007/s13233-013-1041-6
Publisher
Polymer Society of Korea
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Appears in Collections:
ETC 1. Journal Articles
Department of Energy Science and Engineering ETC 1. Journal Articles

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