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Journal of Materials Science
Erschienen in: Journal of Materials Science 14/2015

01.07.2015 | Original Paper

Lightweight high-density polyethylene/carbonaceous nanosheets microcellular foams with improved electrical conductivity and mechanical properties

verfasst von: Siamak Baseghi, Hamid Garmabi, Jaber Nasrollah Gavgani, Hossein Adelnia

Erschienen in: Journal of Materials Science | Ausgabe 14/2015

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Abstract

The high-density polyethylene (HDPE) nanocomposites were prepared by using graphite nanosheets (GNS) and expanded graphite (EG), followed by foaming with subcritical CO2 used as an environmentally benign and nonflammable foaming agent. The partially exfoliated GNS and EG endow the prepared microcellular nanocomposite foams with high electrical conductivity, improved mechanical properties, as well as density reduction up to ca. 20 %. Interestingly, insulator-to-semiconductor transition of microcellular nanocomposite foams shifts to lower nanofiller content compared to that of bulk nanocomposites. Whether the nanofiller is GNS or EG, its incorporation leads to uniformly small cells, resulting in a remarkable enhancement in ductility without sacrificing toughness. It has demonstrated that foaming of HDPE nanocomposites with EG or GNS provides tough and lightweight microcellular foams, exhibiting the potential for use in conductive high-performance lightweight nanocomposite systems.
Vorheriger Artikel Evidence for magneto-electric and spin–lattice coupling in PbFe0.5Nb0.5O3 through structural and magneto-electric studies
Nächster Artikel Instrument for stable high temperature Seebeck coefficient and resistivity measurements under controlled oxygen partial pressure

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Metadaten
Titel
Lightweight high-density polyethylene/carbonaceous nanosheets microcellular foams with improved electrical conductivity and mechanical properties
verfasst von
Siamak Baseghi
Hamid Garmabi
Jaber Nasrollah Gavgani
Hossein Adelnia
Publikationsdatum
01.07.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 14/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-9048-3

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