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Electrical properties of exfoliated‐graphite filled polyethylene composites
Author(s) -
Wang Y. S.,
O'Gurkis M. A.,
Lindt J. T.
Publication year - 1986
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750070512
Subject(s) - materials science , composite material , graphite , dielectric , polyethylene , composite number , electromagnetic shielding , electrical resistivity and conductivity , volume fraction , filler (materials) , high density polyethylene , volume (thermodynamics) , physics , optoelectronics , quantum mechanics , electrical engineering , engineering
Abstract An experimental study has been carried out to prepare and characterize high density polyethylene‐based composites filled with exfoliated graphite particles of varied aspect ratios. It has been demonstrated that the dielectric constant of the composite correlates with the in situ volumetric fraction of the compressible exfoliated filler particles. The dielectric constant has been found to range from 2.23 to 125. The minimum electrical resistivity of the composites obtained was 0.1 Ω.cm at a graphite content of 40 percent by volume. The use of these composites is intended in electromagnetic radiation interference (EMI) shielding.