Mechanical properties of low-density polyethylene filled by graphite nanoplatelets

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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The mechanical properties of GNP/LDPE nanocomposites (graphite nanoplatelets/low density polyethylene) have been investigated, in order to establish the effect of nanoscale reinforcement within the polymer matrix. Results show that the presence of the filler does not involve a change in the microscopic structure of the polymer. However, on a macroscopic scale, GNPs limit the mobility of the polymer chains, resulting in an increase in stiffness for the final composite. Orientation of GNPs within the LDPE matrix is also an important issue that affects mechanical properties and it has been evaluated by testing nanocomposites made by different manufacturing techniques (compression moulding and blown extrusion). The comparison between the experimental data and the Halpin–Tsai model shows that the orientation of GNPs due to the extrusion process leads to values of tensile modulus higher than that obtained with the randomly oriented disposition resulting from the compression moulding technique.
Original languageEnglish
JournalNanotechnology
Publication date2012
Volume23
Journal number48
Pages485705
Number of pages8
ISSN0957-4484
DOIs
StatePublished

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CitationsWeb of Science® Times Cited: 3
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