Resistivity - Volume Expansion Characteristics of Carbon Black-Loaded Polyethylene

Wei Dafu, Zhao Tiejun, Xiao Su Yi

Research output: Journal PublicationArticlepeer-review

14 Citations (Scopus)


The resistivity and volume expansion of carbon black (CB)/high-density polyethylene (HDPE) composite with different CB volume fractions at different temperatures were measured simultaneously. A model based on Meyer's theory is proposed to explain the positive temperature coefficient resistance (PTCR) effect. The relation-ship between resistivity and volume expansion was determined. It was found that the phase change is the main cause of the PTC effect in the crystalline polymer PTC materials.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalJournal of Applied Polymer Science
Issue number1
Publication statusPublished - 5 Jul 2000
Externally publishedYes


  • Carbon black
  • High-density polyethylene
  • Positive temperature coefficient resistance
  • Volume expansion

ASJC Scopus subject areas

  • Chemistry (all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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