Fabrication and stiffness optimization of carbon-based composite double polymer compliant electrode

A manufacturing method is proposed for carbon based composite double polymer compliant electrode. The stiffness of this compliant electrode is changed by adjusting the mass fraction of carbon black and the ratios between Ecoflex20 and RT625. Tensile machine is used to test its ductility and hardness. The conductivity is measured through the source table. Finally, it is printed on the dielectric elastomers (DE) film, and the high-voltage amplifier is used for dielectric elastomers actuators (DEAs) dynamics testing. The results show that the compliant electrode has high tensile properties (>200%), low stiffness (<300 kPa) and well conductivity (0.049 3 S/cm). It is proved that the DEAs displacement output is up to 1.189 mm by this compliant electrode under dynamic response, which is 1.64 times and 1.32 times of the same type. Moreover, this formula extends the curing time of the original compliant electrode ink. It can provide a reference for the production of compliant electrode and DEAs in the future.