Open AccessDielectric elastomer actuator behavior of silicone/cyanoethylsucrose composite films: Morphology and space‐charge distribution
Author(s) -
Tamura Satoshi,
Kiyono Ryotaro,
Hirai Toshihiro
Publication year - 2021
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202100023
Subject(s) - materials science , composite material , polydimethylsiloxane , composite number , elastomer , electric field , space charge , dielectric , layer (electronics) , deformation (meteorology) , silicone , tetrahydrofuran , thin film , polymer chemistry , nanotechnology , optoelectronics , chemistry , organic chemistry , physics , quantum mechanics , solvent , electron
The composite films of polydimethylsiloxane (PDMS) and cyanoethylsucrose (CR‐U) were prepared and investigated as an electroactive silicone actuator in the air. CR‐U is highly viscose and soluble in tetrahydrofuran (THF) and acetone (ACT). The composites showed a phase‐separation structure, in which the spherical CR‐U dispersed in the PDMS domain. The films from THF had an asymmetric cross‐sectional view, in which CR‐U large sphere dispersed with a thin skin layer of PDMS on one side. On the other hand, the films from ACT had a symmetric cross‐sectional structure, in which CR‐U small sphere dispersed uniformly without a PDMS thin skin layer. By applying DC electric field, the films from THF deformed by expanding the thin skin layer regardless of the electric field polarity. The films from ACT showed almost no deformation. The space‐charge distribution explained deformation behavior.