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AuthorKratochv�la J.
AuthorBoudenne A.
AuthorKrupa I.
Available date2022-05-31T19:01:34Z
Publication Date2013
Publication NamePolymer Composites
ResourceScopus
Identifierhttp://dx.doi.org/10.1002/pc.22387
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84872294587&doi=http://dx.doi.org/10.1002%2fpc.22387&partnerID=40&md5=530998626d880384d28f938f87e9e0c7
URIhttp://hdl.handle.net/10576/31903
AbstractVarious aspects of electrical and thermophysical properties of nanocomposites based on low-density polyethylene matrix filled with nanostructuralized expanded graphite (EG) and standard, microsized graphite are presented in this article. A periodical method developed in the laboratory was used to measure simultaneously thermal conductivity, specific heat, and diffusivity of composites at room temperature. The effect of micro- and nanosized fillers on the final thermophysical and electrical behavior is investigated. It was found that the electrical conductivity of composites strongly depends not only on the filler content but also on the filler size. When the microsized graphite was used, the percolation concentration of the filler was found to be 15 vol%, whereas the percolation concentration of the filler in nanocomposites filled with EG of large sizes was significantly lower. Similarly, it was shown that the graphite significantly improves the thermophysical behavior of composites filled with micro- and nanofiller sizes. The thermal conductivity measured values were also compared with some theoretical models for the prediction of the thermal conductivity.
Languageen
SubjectElectrical behaviors
Electrical conductivity
Expanded graphite
Filler contents
Nano-sized fillers
Nanofiller
Percolation concentrations
Room temperature
Theoretical models
Thermophysical
Thermophysical behavior
Electric conductivity
Graphite
Nanocomposites
Polyethylenes
Solvents
Thermal conductivity
Thermodynamic properties
Thermoplastics
Fillers
TitleEffect of filler size on thermophysical and electrical behavior of nanocomposites based on expanded graphite nanoparticles filled in low-density polyethylene matrix
TypeArticle
Pagination149-155
Issue Number2
Volume Number34
dc.accessType Abstract Only


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