Selective location and double percolation of short carbon fiber filled polymer blends: High-density polyethylene/isotactic polypropylene

C. Zhang, X. S. Yi, H. Yui, S. Asai, M. Sumita

Research output: Journal PublicationArticlepeer-review

95 Citations (Scopus)

Abstract

The percolation threshold of high-density polyethylene (HDPE)/isotactic polypropylene (iPP) blends filled with vapor-grown carbon fiber (VGCF), 1.25 parts per hundred parts resin (phr) VGCF content, is much lower than those of the individual polymers. SEM micrographs verified that the improvement of electrical conductivity can be attributed to the selective location of VGCF in the HDPE phase. A double percolation is the basic requirement for the conductivity of the composites, i.e., the percolation of carbon fibers in the HDPE phase, and the continuity of this phase in the polymer blends. Short carbon fibers may affect the morphology of the polymer blends.

Original languageEnglish
Pages (from-to)186-190
Number of pages5
JournalMaterials Letters
Volume36
Issue number1-4
DOIs
Publication statusPublished - Jul 1998
Externally publishedYes

Keywords

  • Double percolation
  • Electrical conductivity
  • Polymer blends
  • Selective location
  • Short carbon fiber

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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