Multilayer coaxial fiber dielectric elastomers for actuation and sensing

作者：Kofod G^*; Stoyanov H; Gerhard R

来源：Applied Physics A-Materials Science & Processing, 2011, 102(3): 577-581.

DOI：10.1007/s00339-010-6066-5

A simple dip-coating technique was employed to manufacture coaxial actuators with multiple layers of alternating dielectric and conducting layers. A thin rubber string was coated with an electrode-insulator-electrode structure, giving rise to a thin, fiber-like actuator with coaxial geometry. The process was repeated to achieve a compact multilayer actuator with up to three coaxial dielectric layers. Mechanical and electromechanical characterization of the actuators is presented, showing actuation strains up to 8% and proper voltage-thickness scaling behavior. Also presented is a capacitance vs. extension plot, demonstrating that these structures can be used for compact and accurate capacitive strain sensing.

• 出版日期2011-3