Evaluation of electric, morphological and thermal properties of thermally conductive polymer composites

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Natural graphite powder was introduced into a linear low density polyethylene (LLDPE) to improve the thermal conductivity. The thermal conductivity of LLDPE/graphite composites is increased by more than seventeen times with increase in filler content up to 30 vol.% as compared to that of LLDPE matrix. The percolation threshold for these composites is equal to 10 vol.%. LLDPE/graphite composites can be used as cost effective thermally dissipative materials for electrical engineering and electronic devices due to the high thermal conductivity and thermal diffusivity.

Original languageEnglish
Pages (from-to)875-882
Number of pages8
JournalApplied Thermal Engineering
Volume91
DOIs
Publication statusPublished - 5 Dec 2015

Fingerprint

Linear low density polyethylenes
Electric properties
Thermodynamic properties
Thermal conductivity
Graphite
Composite materials
Polymers
Thermal diffusivity
Electrical engineering
Fillers
Powders
Costs

Keywords

  • Heat sink
  • LED-lamp
  • Polymer/graphite composites
  • Thermal conductivity
  • Thermal diffusivity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

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title = "Evaluation of electric, morphological and thermal properties of thermally conductive polymer composites",
abstract = "Natural graphite powder was introduced into a linear low density polyethylene (LLDPE) to improve the thermal conductivity. The thermal conductivity of LLDPE/graphite composites is increased by more than seventeen times with increase in filler content up to 30 vol.{\%} as compared to that of LLDPE matrix. The percolation threshold for these composites is equal to 10 vol.{\%}. LLDPE/graphite composites can be used as cost effective thermally dissipative materials for electrical engineering and electronic devices due to the high thermal conductivity and thermal diffusivity.",
keywords = "Heat sink, LED-lamp, Polymer/graphite composites, Thermal conductivity, Thermal diffusivity",
author = "Lebedev, {Sergey M.} and Gefle, {Olga S.}",
year = "2015",
month = "12",
day = "5",
doi = "10.1016/j.applthermaleng.2015.08.046",
language = "English",
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journal = "Applied Thermal Engineering",
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publisher = "Elsevier Limited",

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T1 - Evaluation of electric, morphological and thermal properties of thermally conductive polymer composites

AU - Lebedev, Sergey M.

AU - Gefle, Olga S.

PY - 2015/12/5

Y1 - 2015/12/5

N2 - Natural graphite powder was introduced into a linear low density polyethylene (LLDPE) to improve the thermal conductivity. The thermal conductivity of LLDPE/graphite composites is increased by more than seventeen times with increase in filler content up to 30 vol.% as compared to that of LLDPE matrix. The percolation threshold for these composites is equal to 10 vol.%. LLDPE/graphite composites can be used as cost effective thermally dissipative materials for electrical engineering and electronic devices due to the high thermal conductivity and thermal diffusivity.

AB - Natural graphite powder was introduced into a linear low density polyethylene (LLDPE) to improve the thermal conductivity. The thermal conductivity of LLDPE/graphite composites is increased by more than seventeen times with increase in filler content up to 30 vol.% as compared to that of LLDPE matrix. The percolation threshold for these composites is equal to 10 vol.%. LLDPE/graphite composites can be used as cost effective thermally dissipative materials for electrical engineering and electronic devices due to the high thermal conductivity and thermal diffusivity.

KW - Heat sink

KW - LED-lamp

KW - Polymer/graphite composites

KW - Thermal conductivity

KW - Thermal diffusivity

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JO - Applied Thermal Engineering

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SN - 1359-4311

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