Electric actuation properties of SEBS/CB and SEBS/SWCNT nanocomposite films with different conductive fillers

Myeong Hee Kim, Soon Man Hong, Chong Min Koo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Electric actuation responses of poly(styrene-b-ethylbutylene-b-styrene) (SEBS)/carbon black (CB) and SEBS/single-wall carbon nanotube (SWCNT) nanocomposite films were investigated. The electric field-induced thickness strains and elastic energy densities of both nanocomposites increased with the conductive filler content at the low filler concentration region and then reached the maximum. A further increase of the filler concentration caused a decrease in the actuation strain. The SEBS/SWCNT showed a larger s z value than SEBS/CB at the same filler content. Such actuation properties of the nanocomposites with conductive fillers are discussed from the perspective of dielectric constant, mechanical properties, filler shape, dispersion state, and dielectric stability.

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalMacromolecular Research
Volume20
Issue number1
DOIs
Publication statusPublished - 2012 Jan
Externally publishedYes

Keywords

  • dielectric
  • dielectric instability
  • electromechanical strain
  • nanocomposite
  • single-wall carbon nanotube (SWCNT)
  • space charge injection

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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