Effects of material strain on triboelectric charging: Influence of material properties

Mamadou Sow, Daniel J. Lacks, R. Mohan Sankaran

Research output: Contribution to journalArticlepeer-review


We address electrostatic charging of unstrained and strained latex rubber sheets contacted with a series of materials: polytetrafluoroethylene (PTFE), polyurethane (PU) and stainless steel (SS). For PTFE, strain causes a reversal in the direction of charge transfer. For PU, the direction of charge transfer is reversed after repeated contacts due to material transfer, and strain increases the number of contacts needed for this reversal. For SS, strain reduces the frequency of electrical discharges occurring. These effects may be explained by strain either changing material properties relevant to triboelectric charging, or changing the nature of contact between the surfaces.

Original languageEnglish (US)
Pages (from-to)396-399
Number of pages4
JournalJournal of Electrostatics
Issue number3
StatePublished - Jun 2013
Externally publishedYes


  • Contact electrification
  • Material properties
  • Triboelectric charging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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