This database contains the results of:
Fig. 2a The FTIR spectra of EPDM/lignin composites with different content of ZDMA.
Fig. 2b The engineering stress-strain curves of EPDM/lignin composites with different content of ZDMA.
Fig. 2c The engineering stress-strain curves of EPDM composites after mechanical training for 250 cycles at the stretching speed of 200 mm/min under different training strain.
Fig. 2d The tensile stress-strain curve of L40Z12@600% after mechanical training for 250 cycles at 600% strain.
Fig. 3a The engineering stress-strain curves of L40Z12@300%, L0Z12@300% and L40Z0@300%.
Fig. 3b the hysteresis tensile curves and the corresponding hysteresis ratio of L40Z12@300% at various strains from 50% to 300%.
Fig. 3c The XRD patterns of L40Z12@300% at various fixed strains.
Fig. 3d the relative crystallinity calculated from the XRD patterns of L40Z12@300%. f The XRD patterns of L40Z12@0% and L40Z12@300% at various fixed strains.
Fig. 3e The XRD patterns of L40Z12@0% and L40Z12@300% at various fixed strains.
Fig. 3f Normalized 1D correlation function curves for L40Z12@300% at various strains.
Fig. 3g The core crystalline layer length (d0) at different strains for L40Z12@0% and L40Z12@300%.
Fig. 5b The simulation of engineering stress-strain curve for L40Z12@300%, including covalent-bond network (σ0), elastic network (σ1) and coordination-bond network (σ2).
Fig. 5c The simulation results of engineering stress-strain curves for the samples trained at different strains.
Fig. 6a Strain variation in isoforce mode and the corresponding temperature of the sample L40Z12@600% plotted against time
Fig. 6c Stress variation in isostrain mode of L40Z12@600% plotted against temperature.
Fig. 6e plot of the angle change vs cycles for the thermal actuation of L40Z12@600% lifting up a 200 g load.
Fig. 6g plot of the strain change vs cycles for the thermal actuation of L40Z12@600% (20 mg) bearing a load of 205 g which was 10000 times higher than its own weight.
Fig. 7c Quantitative evaluation of the variation of actuation strain in response to the current signal in the electric-triggered actuation tests
Supplementary Fig. 4 The engineering stress-strain curves of L40Z12@0% and L0Z12@0%.
Supplementary Fig. 6a The loading-unloading curves of L40Z12@300% during mechanical training;
Supplementary Fig. 6b The loading-unloading curves of L40Z12@600% during mechanical training.
Supplementary Fig. 7a The stress at 200% strain of EPDM composites after mechanical training for 250 cyclyes at different training strain;
Supplementary Fig. 7b The engineering stress-strain curves of EPDM composites after mechanical training at 300% training strain under different cycles;
Supplementary Fig. 7c The residual strain of EPDM composites after mechanical training for 250 cyclyes under different training strain;
Supplementary Fig. 7d The residual strain of EPDM composites after mechanical training at 300% training strain under different cycles.
Supplementary Fig. 8 The XRD patterns of L40Z12@0% and L40Z12@300% at 0% strain.
Supplementary Fig. 9 The stress relaxation curve of L40Z12@300% at 50% strain.
Supplementary Fig. 11a The hysteresis tensile curves of L40Z12@0% at various strains from 50% to 300%;
Supplementary Fig. 11b The hysteresis loss of L40Z12@300% and L40Z12@0%;
Supplementary Fig. 11c The hysteresis ratio of L40Z12@300% and L40Z12@0%.
Supplementary Fig. 12 The FTIR spectra of L40Z12@300% at the tensile strain of 0%, 75% and 150%, in comparison with the samples L40Z12@0% and L40Z0@0% at the strain of 0%.
Supplementary Fig. 13a Normalized 1D correlation function curves for L40Z12@0% at various strains;
Supplementary Fig. 13b Normalized 1D correlation function curves for L40Z0@300% at various strains;
Supplementary Fig. 13c Normalized 1D correlation function curves for L40Z12@300% at 300% strain;
Supplementary Fig. 13d The core-crystalline layer length (d0) at different strains for L40Z0@300%.
Supplementary Fig. 14a the simulation engineering stress-strain curves by adujusting the value of the value of β0 (β2 = 0.49; = 54);
Supplementary Fig. 14b The simulation engineering stress-strain curves by adujusting the value of the value of β2 (β0 = 0.105; = 54);
Supplementary Fig. 14c The simulation engineering stress-strain curves by adujusting the value of the value of (β0 = 0.105; β2 = 0.49).
Supplementary Fig. 15a Strain variation in isoforce mode (1.0 MPa) and the corresponding temperature of the sample L40Z0@300% plotted against time;
Supplementary Fig. 15b DSC crystallization curves of samples;
Supplementary Fig. 15c Stress variation in isostrain mode of L40Z12@0% plotted against temperature;
Supplementary Fig. 15d Stress variation in isostrain mode of L40Z0@300% plotted against temperature;
Supplementary Fig. 15e Stress variation in isostrain mode of L0Z12@300% plotted against temperature.
Supplementary Fig. 16 The engineering stress-strain curves of L20C20Z12@300% (Red) and L40Z12@300% and L40Z12@600% (Blue) after mechanical training for 250 cycles.
Supplementary Fig. 17 Plots of the reversible motion strain vs cycles for the thermal actuation of L20C20Z12@300% under 0-25 mA.