Electrical properties of low density polyethylene/ZnO nanocomposites : The effect of thermal treatments

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1436-1444
Journal / PublicationJournal of Applied Polymer Science
Volume102
Issue number2
Publication statusPublished - 15 Oct 2006

Abstract

Low density polyethylene (LDPE)/ZnO nanocomposites were prepared by melt compounding followed by annealing or quenching treatment. Electrical properties of the thermally treated nanocomposites were investigated. The results showed that thermal treatments exerted a pronounced effect on the electrical properties of LDPE/ZnO nanocomposites. The dielectric constant of annealed LDPE/ZnO nanocomposites at various ZnO contents was higher than that of quenched nanocomposites. In sharp contrast, the resistivity of annealed LDPE/ZnO nanocomposites was considerably lower than that of quenched samples. The frequency dependence of dielectric constant was much pronounced for both the annealed and quenched LDPE/ZnO nanocomposites associated with the formation of ZnO network as the ZnO volume content reached 52 vol %. The structure-property relationship of the nanocomposites is discussed. © 2006 Wiley Periodicals, Inc.

Research Area(s)

  • Crystallization, Dielectric constant, Low density polyethylene, Resistivity