Fig. 4: Energy density and power density properties of PFED10.
From: A large-strain and ultrahigh energy density dielectric elastomer for fast moving soft robot
a Schematic illustration of a pure-shear DEA as a linear actuator to test the specific energy and specific power. The DEA was pre-stretched laterally and loaded in the perpendicular direction. b Specific energy of VHB 4910 and PFED10 films at different electric fields with a 120 g load. Inset: photographs of linear actuation of PFED10 pure-shear DEA at 40 MV m−1 with a 120 g load. The frequency was fixed at 0.5 Hz. Scale bar, 1 cm. Error bars show s.d., n = 3. c Block force of VHB 4910 and PFED10 films at different electric fields with a 120 g load. d Specific energy of VHB 4910 and PFED10 films at different frequencies. The driving electric field was fixed at 40 MV m−1. Error bars show s.d., n = 3. e Average specific power density of VHB 4910 and PFED10 films at different frequencies. f Photographs of two scaled-up pure-shear DEAs prepared by PFED10 films can output large forces to lift a 1.5 kg bucket. Scale bar, 3 cm.
