Thermally Conductive Polymer Nanocomposites for Thermal Management of Electronic Packaging


Tavman I. H., EVGİN T.

23rd IEEE International Symposium for Design and Technology in Electronic Packaging (SIITME), Constanta, Romania, 26 - 29 October 2017, pp.64-67 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/siitme.2017.8259858
  • City: Constanta
  • Country: Romania
  • Page Numbers: pp.64-67
  • Keywords: nanocomposites, high density polyethylene, graphite, electrical conductivity, thermal conductivity, COMPOSITES
  • Dokuz Eylül University Affiliated: Yes

Abstract

Graphite particles filled high density polyethylene (HDPE) conductive polymer nanocomposites were prepared by melt mixing process. The conductive filler which consists of graphite particles (average particle size of 400 nm) were mixed with the HDPE matrix at different weight percentage (wt%) up to 30 wt% in a Brabender Plasticorder PLE 331 internal mixer at 180 degrees C for 15 min Various thermophysical properties of HDPE/graphite nanocomposites, such as thermal conductivity, specific heat capacity, electrical conductivity, mechanical properties were investigated. Thermal conductivities were measured using transient plane source technique and the results obtained were compared with already existing models. Thermal conductivity increased from 0.53 W/m.K for pure HDPE to 2.64 W/m.K for 30 wt% of graphite particles. Heat capacities were measured using a differential scanning calorimeter (DSC). The percolation threshold for electrical conductivity is 16w% of graphite particle filler; the electrical conductivity increased from 8.07x10(-14) S.cm(-1) for neat HDPE to 2.02x10(-4) S.cm(-1) for composites with 30 wt% of graphite particles.