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I-V characteristic and mechanism of carbon black filled epoxy resin matrix composites

  • School of Civil Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The I-V characteristic of the epoxy resin matrix composites containing conductive carbon black (CB) and sprayed CB is experimentally studied. The test results indicate that the I-V characteristic of the CB filled epoxy resin matrix composites is affected by the CB diameter. The composites containing sprayed CB with the diameter of 123nm have a linear relation between current and voltage and no variation in resistance post-exposed to an electric field. However, the composites containing conductive CB with the diameter of 33nm have a nonlinear I-V characteristic and the resistance of the composites post-exposed to an electric field decreases dramatically. A DC circuit model based on the experimental research is proposed. The occurrence of the electrical breakdown induces the nonlinear I-V characteristic and the dramatic decrease of the electrical resistance of the composites post-exposed to an electric field.

Original languageEnglish
Title of host publicationInternational Conference on Smart Materials and Nanotechnology in Engineering
DOIs
StatePublished - 2007
Externally publishedYes
EventInternational Conference on Smart Materials and Nanotechnology in Engineering - Harbin, China
Duration: 1 Jul 20074 Jul 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6423
ISSN (Print)0277-786X

Conference

ConferenceInternational Conference on Smart Materials and Nanotechnology in Engineering
Country/TerritoryChina
CityHarbin
Period1/07/074/07/07

Keywords

  • Carbon black
  • Composites
  • Electrical breakdown
  • Epoxy resin

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