A Prestretch‐Free Dielectric Elastomer with Record‐High Energy and Power Density via Synergistic Polarization Enhancement and Strain Stiffening
Hebei University of Technology · Fudan University · +1 more institution
Abstract
Abstract Dielectric elastomer actuators with high energy and power output, combined without pre‐stretching treatment to simplify device fabrication, are highly desirable for soft robotics. Here, different from most studies that focus on modifying elastomers such as polyacrylates and silicones, the study designs a prestretch‐free dielectric elastomer based on hydrogenated carboxylated nitrile butadiene rubber to reach a record‐high energy density (564 J kg −1 ) and power density (5641 W kg −1 ), ≈15 times greater than natural muscle and three times greater than the state‐of‐the‐art dielectric elastomers. This excellent performance arises from the synergistic polarization enhancement and strain stiffening…
Citation impact
- FWCI
- 22.24
- Percentile
- 100%
- References
- 59
Authors
11Topics & keywords
- Materials science
- Stiffening
- Dielectric
- Elastomer
- Composite material
- Polarization (electrochemistry)
- Strain (injury)
- Optoelectronics