Results 11 to 20 of about 2,636 (242)

Catastrophic Thinning of Dielectric Elastomers [PDF]

open access: yesPhysical Review Letters, 2017
We provide an energetic insight into the catastrophic nature of thinning instability in soft electroactive elastomers. This phenomenon is a major obstacle to the development of giant actuators, yet it is neither completely understood nor modeled accurately.
Zurlo, G.   +3 more
openaire   +5 more sources

Increased electromechanical sensitivity of polysiloxane elastomers by chemical modification with thioacetic groups

open access: yesMaterials & Design, 2020
Chemically cross-linked polydimethylsiloxane (PDMS) elastomers have gained importance as a dielectric in elastic capacitor actuators, which elongate when electrically charged. Common PDMS elastomers have a dielectric permittivity of only about 3 and thus
Elena Perju   +3 more
doaj   +1 more source

Improved the dielectric properties of thermoplastic polyurethane elastomer filled with MXene nanosheets and BaTiO3 nanofibers

open access: yesPolymer Testing, 2022
To achieve high deformation under a low electric field intensity is still a big challenge for the dielectric elastomers (DE) potentially used in artificial electronic skin and artificial muscles.
Zhaoxia Luo   +4 more
doaj   +1 more source

Self-stabilizing dielectric elastomer generators [PDF]

open access: yesSmart Materials and Structures, 2017
Dielectric elastomer generators (DEGs) are an emerging technology for the conversion of mechanical into electrical energy. Despite many advantageous characteristics, there are still issues to overcome, including the need for charging at every cycle to produce an electrical output.
P Zanini, J Rossiter, M Homer
openaire   +3 more sources

Compliant actuation based on dielectric elastomers for a force-feedback device: modeling and experimental evaluation

open access: yesFracture and Structural Integrity, 2012
Thanks to their large power densities, low costs and shock-insensitivity, Dielectric Elastomers (DE) seem to be a promising technology for the implementation of light and compact force-feedback devices such as, for instance, haptic interfaces ...
R. Vertechy   +4 more
doaj   +3 more sources

Polyvinyl chloride-based dielectric elastomer with high permittivity and low viscoelasticity for actuation and sensing

open access: yesNature Communications, 2023
Dielectric elastomers (DEs) are widely used in soft actuators but existing DE actuators often require high driving electrical fields. Here the authors demonstrate that introducing cyanoethyl cellulose into plasticized PVC gel confers high dielectric ...
Jianjian Huang   +4 more
doaj   +1 more source

Fabrication and actuation characterisation of a new UV curing acrylic dielectric elastomer

open access: yesIET Nanodielectrics, 2022
Most commonly used dielectric elastomers (DEs) such as acrylic dielectric elastomers VHBTM 4910 need a high actuation voltage and pre‐stretching to obtain a large actuation strain, and present high mechanical loss caused by viscoelasticity. In this work,
Wen‐Zhuo Dong   +3 more
doaj   +1 more source

Suppression of electromechanical instability in fiber-reinforced dielectric elastomers

open access: yesAIP Advances, 2016
The electromechanical instability of dielectric elastomers has been a major challenge for the application of this class of active materials. In this work, we demonstrate that dielectric elastomers filled with soft fiber can suppress the electromechanical
Rui Xiao, Xiaofan Gou, Wen Chen
doaj   +1 more source

Functional polymethacrylate composite elastomer filled with multilayer graphene and silica particles

open access: yesCarbon Trends, 2021
In this work, a three-component composite elastomer consisting of poly(di(ethylene glycol)methyl ether methacrylate) (PMEO2MA), 110 nm spherical silica particles and multilayer graphene (MLG) is fabricated and its various functions brought about by the ...
Fumio Asai   +2 more
doaj   +1 more source

Degradation patterns of silicone-based dielectric elastomers in electrical fields

open access: yesInternational Journal of Smart and Nano Materials, 2018
Silicone elastomers have been heavily investigated as candidates for the flexible insulator material in dielectric elastomer transducers and are as such almost ideal candidates because of their inherent softness and compliance.
Liyun Yu   +2 more
doaj   +1 more source

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