Charge formation in epoxy/filler composites

Jin H. Nam, Chang R. Lee, Kwang S. Suh, Dong P. Kang

Research output: Contribution to journalArticlepeer-review


Charge formation in epoxy loaded with fillers such as SiO2, CaCO3 and Al(OH)3 was investigated. A small amount of homocharge was observed in the cured epoxy. The homocharge in epoxy/filler composite increased when both SiO2 and Al(OH)3 are mixed, whereas it decreased when CaCO3 is mixed. The highest homocharge was found in the epoxy containing 50 phr of SiO2. Space charge characteristics did not change by the surface treatment of SiO2 with γ-glycidoxypropyltrimethoxysilane, a coupling agent, although diffused charge distributions were observed at some contents of coupling agent. Homocharge accumulation in these samples was attributed to the trapping of injected electrons at the epoxy/filler interfaces.

Original languageEnglish
Pages (from-to)633-638
Number of pages6
JournalPolymer (Korea)
Issue number4
Publication statusPublished - 1996


  • Charge formation
  • Coupling agent
  • Epoxy
  • Filler
  • Interface

ASJC Scopus subject areas

  • General Chemical Engineering
  • Polymers and Plastics
  • Materials Chemistry


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