Comparison of Electronic and Ionic EAPs
Dielectronic polymers are able to hold their induced displacement while activated under a DC voltage. This allows dielectronic polymers to be considered for robotic applications. These types of materials also have high mechanical energy density and can be operated in air without a major decrease in performance. However, dielectronic polymers require very high activation fields (>10 v/um) that are close to the breakdown level.
The activation of ionic polymers, on the other hand, requires only 1-2 volts. They however need to maintain wetness, though some polymers have been developed as self contained encapsulated activators which allows their use in dry environments. Ionic polymers also have a low electromechanical coupling. They are however ideal for the bio-mimetic devices.
Read more about this topic: Electroactive Polymers
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