Abstract
Cellulose based electro-active paper (EAPap) has been discovered as an attractiveEAP material for artificial muscles due to its advantages in terms of light weight,biodegradability, low cost, large displacement output, low actuation voltage and low powerconsumption. However, EAPap exhibits low force output and frequency band. To enhanceEAPap actuators, a hybrid EAPap actuator is developed by coating a composite ofsingle-walled carbon nanotube (SWNT)/polyaniline (PANi) with different dopants(Cl− and ClO4−). SWNT is dispersed in 1-methyl-2-pyrrolidone (NMP), and the SWNT suspension ismixed and sonicated with dopants. The resulting solution is coated on both sides of EAPapby spin coating. The actuation performance of hybrid EAPap actuators is tested in termsof bending displacement, blocked force, mechanical power output and electrical powerconsumption. The hybrid EAPap actuators show improved force and resonance frequencyas a result of enhanced stiffness of the actuators. Although the displacement output is alittle bit decreased, the required electrical field strength and the electrical powerconsumption are low, which are promising for achieving ultra-lightweight smart actuators.
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