Enhanced dielectric strength and actuation of acrylic elastomer with silicone gel encapsulation

Thanh Giang La, Gih Keong Lau*

*Corresponding author for this work

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

2 Scopus citations

Abstract

Use of dielectric gel encapsulation is reported to make acrylic elastomer (VHB 4905) electrically stronger. Acrylic dielectric elastomer actuators (DEA) with silicone gel encapsulation can sustain an electrical breakdown field of up to 532MV/m, higher than 315MV/m of non-coated ones. Hence, its ultimate areal strain of 228% is larger than 189% of latter. This enhanced dielectric strength and actuation is attributed to the delayed electrothermal breakdown of VHB with silicone gel encapsulant that bars oxygen supply in air.

Original languageEnglish
Title of host publicationElectroactive Polymer Actuators and Devices (EAPAD) 2016
EditorsFrederic Vidal, Yoseph Bar-Cohen
PublisherSPIE
ISBN (Electronic)9781510600393
DOIs
StatePublished - 1 Jan 2016
EventElectroactive Polymer Actuators and Devices (EAPAD) 2016 - Las Vegas, United States
Duration: 21 Mar 201624 Mar 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9798
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceElectroactive Polymer Actuators and Devices (EAPAD) 2016
CountryUnited States
CityLas Vegas
Period21/03/1624/03/16

Keywords

  • Dielectric breakdown
  • Dielectric elastomer actuators
  • Dielectric strength
  • Silicone gel

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