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Electromechanical characterization of magnetic responsive and conductive 359

15.3.6 Mechanical properties of IL/PVDF-HFP/PEDOT:PSS/xylitol bending actuator

Evidently, IL/PVDF-HFP is stronger and more ductile than the PEDOT:PSS/xylitol films.
In terms of actuation, the much weaker ductility of PEDOT:PSS/xylitol will be the limiting
factor to the actuator’s capability. As such the mechanical properties of PEDOT:PSS/xylitol
films should be improved on. One possible method will be to increase the amount of xylitol
added into the films, as the current amount of 0.75 wt.% may be insufficient [10]
(Figs. 15.10 and 15.11; Table 15.4).

Figure 15.10
Load-extension curve of IL/PVDF-HFP 20 wt.% IL film.

Figure 15.11
Load-extension curve of PEDOT:PSS/xylitol film.