Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers

Jungwoo Park; Ji Wang Yoo; Hee Won Seo; Youngkwan Lee; Jonghwan Suhr; Hyungpil Moon; Ja Choon Koo; Hyouk Ryeol Choi; Robert Hunt; Kwang Jin Kim; Soo Hyun Kim; Jae Do Nam

doi:10.1088/1361-665X/aa5323

Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers

Jungwoo Park, Ji Wang Yoo, Hee Won Seo, Youngkwan Lee, Jonghwan Suhr, Hyungpil Moon, Ja Choon Koo, Hyouk Ryeol Choi, Robert Hunt, Kwang Jin Kim, Soo Hyun Kim, Jae Do Nam

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

As a new class of thermally activated actuators based on polymeric fibers, we investigated polyethylene terephthalate (PET) yarns for the development of a twisted-coiled polymer fiber actuator (TCA). The PET yarn TCA exhibited the maximum linear actuation up to 8.9% by external heating at above the glass transition temperature, 160 anddeg;C-180 anddeg;C. The payload of the actuator was successfully correlated with the preload and training-load conditions by an empirical equation. Furthermore, the PET-based TCA was electrically driven by Joule heating after the PET surface was metallization with silver. For the fast and precise control of PET yarn TCA, electroless silver plating was conducted to form electrical conductive layers on the PET fiber surface. The silver plated PET-based TCA was tested by Joule heating and the tensile actuation was increased up to 12.1% (6 V) due to the enhanced surface hardness and slippage of PET fibers. Overall, silver plating of the polymeric yarn provided a fast actuation speed and enhanced actuation performance of the TCA actuator by Joule heating, providing a great potential for being used in artificial muscle for biomimetic machines including robots, industrial actuators and powered exoskeletons.

Original language	English
Article number	035048
Journal	Smart Materials and Structures
Volume	26
Issue number	3
DOIs	https://doi.org/10.1088/1361-665X/aa5323
Publication status	Published - 2017 Feb 17
Externally published	Yes

Keywords

Joule heating
artificial muscle
electroless silver plating
twisted-coiled fiber actuator (TCA)

ASJC Scopus subject areas

Signal Processing
Civil and Structural Engineering
Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Electrical and Electronic Engineering

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Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers. / Park, Jungwoo; Yoo, Ji Wang; Seo, Hee Won; Lee, Youngkwan; Suhr, Jonghwan; Moon, Hyungpil; Koo, Ja Choon; Choi, Hyouk Ryeol; Hunt, Robert; Kim, Kwang Jin; Kim, Soo Hyun; Nam, Jae Do.

In: Smart Materials and Structures, Vol. 26, No. 3, 035048, 17.02.2017.

Research output: Contribution to journal › Article › peer-review

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title = "Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers",

abstract = "As a new class of thermally activated actuators based on polymeric fibers, we investigated polyethylene terephthalate (PET) yarns for the development of a twisted-coiled polymer fiber actuator (TCA). The PET yarn TCA exhibited the maximum linear actuation up to 8.9% by external heating at above the glass transition temperature, 160 anddeg;C-180 anddeg;C. The payload of the actuator was successfully correlated with the preload and training-load conditions by an empirical equation. Furthermore, the PET-based TCA was electrically driven by Joule heating after the PET surface was metallization with silver. For the fast and precise control of PET yarn TCA, electroless silver plating was conducted to form electrical conductive layers on the PET fiber surface. The silver plated PET-based TCA was tested by Joule heating and the tensile actuation was increased up to 12.1% (6 V) due to the enhanced surface hardness and slippage of PET fibers. Overall, silver plating of the polymeric yarn provided a fast actuation speed and enhanced actuation performance of the TCA actuator by Joule heating, providing a great potential for being used in artificial muscle for biomimetic machines including robots, industrial actuators and powered exoskeletons.",

keywords = "Joule heating, artificial muscle, electroless silver plating, twisted-coiled fiber actuator (TCA)",

author = "Jungwoo Park and Yoo, {Ji Wang} and Seo, {Hee Won} and Youngkwan Lee and Jonghwan Suhr and Hyungpil Moon and Koo, {Ja Choon} and Choi, {Hyouk Ryeol} and Robert Hunt and Kim, {Kwang Jin} and Kim, {Soo Hyun} and Nam, {Jae Do}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF), the Ministry of Science, ICT and Future Planning (NRF-2012M1A2A2671788 and NRF-2014M3C1B2048175), and Ministry of Trade, Industry and Energy (MOTIE) (10041173). We also appreciate the project and equipment support from Gyeonggi Province through the GRRC program in Sungkyunkwan University. RH and KJK would like to acknowledge the partial financial support from the US National Science Foundation (#1545875).",

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AU - Yoo, Ji Wang

AU - Seo, Hee Won

AU - Lee, Youngkwan

AU - Suhr, Jonghwan

AU - Moon, Hyungpil

AU - Koo, Ja Choon

AU - Choi, Hyouk Ryeol

AU - Hunt, Robert

AU - Kim, Kwang Jin

AU - Kim, Soo Hyun

AU - Nam, Jae Do

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF), the Ministry of Science, ICT and Future Planning (NRF-2012M1A2A2671788 and NRF-2014M3C1B2048175), and Ministry of Trade, Industry and Energy (MOTIE) (10041173). We also appreciate the project and equipment support from Gyeonggi Province through the GRRC program in Sungkyunkwan University. RH and KJK would like to acknowledge the partial financial support from the US National Science Foundation (#1545875).

PY - 2017/2/17

Y1 - 2017/2/17

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AB - As a new class of thermally activated actuators based on polymeric fibers, we investigated polyethylene terephthalate (PET) yarns for the development of a twisted-coiled polymer fiber actuator (TCA). The PET yarn TCA exhibited the maximum linear actuation up to 8.9% by external heating at above the glass transition temperature, 160 anddeg;C-180 anddeg;C. The payload of the actuator was successfully correlated with the preload and training-load conditions by an empirical equation. Furthermore, the PET-based TCA was electrically driven by Joule heating after the PET surface was metallization with silver. For the fast and precise control of PET yarn TCA, electroless silver plating was conducted to form electrical conductive layers on the PET fiber surface. The silver plated PET-based TCA was tested by Joule heating and the tensile actuation was increased up to 12.1% (6 V) due to the enhanced surface hardness and slippage of PET fibers. Overall, silver plating of the polymeric yarn provided a fast actuation speed and enhanced actuation performance of the TCA actuator by Joule heating, providing a great potential for being used in artificial muscle for biomimetic machines including robots, industrial actuators and powered exoskeletons.

KW - Joule heating

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