Influence of graphene size and content on thermal conductivity of novel poly(Lactic) acid nanocomposites

Rumiana Kotsilkova*, Vladimir Georgiev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, nanocomposites of poly(lactic) acid incorporating two kinds of highly thermal conductive graphene nanoplatelets differing in size and purity were fabricated by melt extrusion. Nanocomposites of 1.5–9 wt% filler contents were characterized using thermal constant analysis, X-ray diffraction and infrared spectroscopy to clarify their functionality, related to composition and morphology. The thermal conductivity increases linearly with increasing the filler concentration, but it is essentially determined by the size and purity of fillers and thermal interfacial resistance.

Original languageEnglish
Pages (from-to)521-528
Number of pages8
JournalComptes Rendus de L'Academie Bulgare des Sciences
Volume74
Issue number4
DOIs
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • FT-IR
  • Graphene nanoplatelets
  • PLA
  • Thermal conductivity
  • WAXD

ASJC Scopus subject areas

  • General

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