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Actuation of Electro‐Active Artificial Muscle at Ultralow Frequency
Author(s) -
Lu Jun,
Kim SangGyun,
Lee Sunwoo,
Oh IlKwon
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000739
Subject(s) - artificial muscle , maleimide , materials science , polymer , polymer chemistry , ionic bonding , solvent , inertia , voltage , chemistry , composite material , actuator , computer science , physics , organic chemistry , classical mechanics , ion , quantum mechanics , artificial intelligence
The electromechanical properties of an electro‐active artificial muscle of poly(styrene‐ alt ‐maleimide)/poly(vinylidene fluoride) with glycerol as a solvent at ultralow frequencies were investigated. Actuated at higher potentials and in the open air, the artificial muscle showed no back‐relaxation, and the deformation increased steadily as long as the voltage was applied quasi‐statically. Under a simple stimulus with such low frequency as 0.005 Hz, the artificial muscle displayed excellent harmonic responses, and its actuation performance was observed to be improved continuously by a self‐activating process along with the time increased. This is attributed to a combination effect resulting from the unique nanochannels of the ionic network polymer and the large inertia mass of the viscous glycerol.