ELECTRO-MECHANICAL RESPONSE OF STRETCHABLE PDMS COMPOSITES WITH A HYBRID FILLER SYSTEM

Haeji Kim, Nadeem Qaiser, Byungil Hwang

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

With the technological development of wearable devices, there are increasing demands for stretchable conductor that have stable electro-mechanical performance. In this study, a stretchable PDMS composite electrodes using ternary systems of fillers consisting of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) / carbon nanotube (CNT) / silver nanowire (AgNW) is explored in a perspective of electro-mechanical response. PDMS matrix is mixed with binary fillers of CNT and PEDOT:PSS, which is followed by AgNW peeling-off process. The PDMS composite is mechanically reliable especially under tensile deformation, which showed a high rupture strain of similar to 102% and tensile strength of similar to 2.7 MPa. In addition, the PDMS composites shows the stable electro-mechanical response, where high electrical conductivity is sustained even under stretchable conditions, showing an electrical resistance value of similar to 11.7 omega/cm under 40% of strain. As a demonstration, a supercapacitor using the PDMS composites is demonstrated that shows reliable electrochemical performance.
Original languageEnglish (US)
Pages (from-to)51-61
Number of pages11
JournalFACTA UNIVERSITATIS-SERIES MECHANICAL ENGINEERING
Volume21
Issue number1
DOIs
StatePublished - Apr 2023

ASJC Scopus subject areas

  • Mechanics of Materials
  • Civil and Structural Engineering
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Polymers and Plastics

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