Thermal properties and thermal stability of polypropylene composites filled with graphene nanoplatelets

J. Z. Liang, J. Z. Wang, Chi Pong Tsui, Chak Yin Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

The thermal properties and thermal stability of polypropylene (PP) composites separately filled with graphene nanoplatelets (GNPs) with three different sizes were measured using a differential scanning calorimetry and a thermal gravimetric analyser. The results showed that the values of the melting temperature of the composites were higher than that of the unfilled PP; the thermal stability increased with increasing the weight fraction and lateral dimension of GNPs in the case of low filler concentration, while the effect of the GNPs thickness on the thermal stability was insignificant; the onset decomposition temperature increased with increasing the GNPs lateral dimension, while the maximum thermal decomposition rate increased first and then decreased with increasing the GNPs weight fraction. The thermal stability improvement should be attributed to the sheet barrier function of the GNPs.
Original languageEnglish
Pages (from-to)246-264
Number of pages19
JournalJournal of Thermoplastic Composite Materials
Volume31
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • Graphene nanoplatelets
  • Matrix composites
  • Polymer
  • Thermal properties
  • Thermal stability
  • Thermogravimetric analysis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics

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