Soft, tough, and fast polyacrylate dielectric elastomer for non-magnetic motor.

ABSTRACT: Dielectric elastomer actuators (DEAs) with large electrically-actuated strain can build light-weight and flexible non-magnetic motors. However, dielectric elastomers commonly used in the field of soft actuation suffer from high stiffness, low strength, and high driving field, severely limiting the DEA's actuating performance. Here we design a new polyacrylate dielectric elastomer with optimized crosslinking network by rationally employing the difunctional macromolecular crosslinking agent. The proposed elastomer simultaneously possesses desirable modulus (~0.073 MPa), high toughness (elongation ~2400%), low mechanical loss (tan δ_m = 0.21@1 Hz, 20 °C), and satisfactory dielectric properties ([Formula: see text] = 5.75, tan δ_e = 0.0019 @1 kHz), and accordingly, large ac

SUBMITTER: Yin LJ 

PROVIDER: S-EPMC8313586 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature