15 April 2016 Bending artificial muscle from nylon filaments
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Highly oriented nylon and polyethylene fibers shrink in length and expand in diameter when heated. Using this property, in this work, for the first time we are introducing a type of bending artificial muscle from nylon filaments such as fishing line. Reversible radius of curvature of 0.23 mm-1 was achieved with maximum reversible bending amplitude of 115 mm for the nylon bending actuator. Peak force of up to 2040 mN was measured with a catch-state force of up to 40% of the active force. A 3 dB roll-off frequency of around 0.7 Hz was observed in the frequency response of the bending actuator in water.
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Seyed M. Mirvakili, Ian W. Hunter, "Bending artificial muscle from nylon filaments", Proc. SPIE 9798, Electroactive Polymer Actuators and Devices (EAPAD) 2016, 97981L (15 April 2016); doi: 10.1117/12.2225271; https://doi.org/10.1117/12.2225271

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