Filled liquid silicone rubbers: Possibilities and challenges

Liyun Yu (Invited author), Sindhu Vudayagiri (Invited author), Shamsul Bin Zakaria (Invited author), Mohamed Yahia Benslimane (Invited author), Anne Ladegaard Skov (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Liquid silicone rubbers (LSRs) have been shown to possess very favorable properties as dielectric electroactive polymers due to their very high breakdown strengths (up to 170 V/μm) combined with their fast response, relatively high tear strength, acceptable Young’s modulus as well as they can be filled with permittivity enhancing fillers. However, LSRs possess large viscosity, especially when additional fillers are added. Therefore both mixing and coating of the required thin films become difficult. The solution so far has been to use solvent to dilute the reaction mixture in order both to ensure better particle dispersion as well as folllowing for film formation properties. We show that the mechanical properties of the films as well as the electrical breakdown strength can be affected, and that the control of the amount of solvent throughout the coating process is essential for solvent borne processes. Another problem encountered when adding solvent to the highly filled reaction mixture is the loss of tension in the material upon large deformations. These
losses are shown to be irreversible and happen within the first large-strain cycle.
Original languageEnglish
Title of host publicationProceedings of SPIE : Electroactive polymer actuators and devices (EAPAD 2014)
Volume9056
PublisherSPIE - International Society for Optical Engineering
Publication date2014
Article number90560S-1
ISBN (Print)9780819499820
DOIs
Publication statusPublished - 2014
EventSPIE Smart Structures/NDE: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring - Town & Country Resort and Convention Cente, San Diego, CA, United States
Duration: 9 Mar 201413 Mar 2014
http://spie.org/SS/conferencedetails/electroactive-polymer-actuators-devices-eapad

Conference

ConferenceSPIE Smart Structures/NDE
LocationTown & Country Resort and Convention Cente
CountryUnited States
CitySan Diego, CA
Period09/03/201413/03/2014
Internet address

Keywords

  • Elastomers
  • Silicones
  • Composites
  • Electroactive
  • Strain displacement

Cite this

Yu, L., Vudayagiri, S., Zakaria, S. B., Benslimane, M. Y., & Skov, A. L. (2014). Filled liquid silicone rubbers: Possibilities and challenges. In Proceedings of SPIE: Electroactive polymer actuators and devices (EAPAD 2014) (Vol. 9056). [90560S-1] SPIE - International Society for Optical Engineering. https://doi.org/10.1117/12.2044565