Mechanical stretch influence on lifetime of dielectric elastomer films

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6 Citations (Scopus)
56 Downloads (Pure)

Abstract

Film pre-stretching is a widely adopted solution to improve dielectric strength of the DEA systems. However, to date, long term reliability of this solution has not been investigated. In this work it is explored how the dielectric elastomer lifetime is affected by film pre-stretching. The dielectric loss of soft polydimethylsiloxane (PDMS) films is studied for different stretch ratios by measuring tanδ. Additionally, time-to-breakdown was measured at DC electric stress for different stretch ratios. For this purpose, accelerated life test (ALT) were performed. The results obtained are compared with non-pre-stretched samples. This study suggests that no additional dielectric losses are caused by film stretching up to 80% of original dimensions.
Original languageEnglish
Title of host publication Electroactive Polymer Actuators and Devices (EAPAD) 2017
EditorsYoseph Bar-Cohen
Place of PublicationBellingam, WA
PublisherSPIE
Pages1-9
Number of pages9
ISBN (Electronic)9781510608115
DOIs
Publication statusPublished - 17 Apr 2017
EventSmart Structures and Materials & Nondestructive Evaluation and Health Monitoring 2017 - Portland, OR, United States
Duration: 25 Mar 201729 Mar 2017

Publication series

NameProceedings of SPIE
Volume10163
ISSN (Electronic)0277-786X

Conference

ConferenceSmart Structures and Materials & Nondestructive Evaluation and Health Monitoring 2017
CountryUnited States
CityPortland, OR
Period25/03/1729/03/17

Keywords

  • pre-stretching
  • lifetime
  • dielectric loss
  • time-to-breakdown
  • PDMS
  • reliability

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