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 | |
| Publication status | Published - 2017 Feb 17 |
| Externally published | Yes |
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Keywords
- artificial muscle
- electroless silver plating
- Joule heating
- 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
Cite this
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
}
TY - JOUR
T1 - Electrically controllable twisted-coiled artificial muscle actuators using surface-modified polyester fibers
AU - Park, Jungwoo
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
PY - 2017/2/17
Y1 - 2017/2/17
N2 - 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.
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 - artificial muscle
KW - electroless silver plating
KW - Joule heating
KW - twisted-coiled fiber actuator (TCA)
UR - http://www.scopus.com/inward/record.url?scp=85014776383&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85014776383&partnerID=8YFLogxK
U2 - 10.1088/1361-665X/aa5323
DO - 10.1088/1361-665X/aa5323
M3 - Article
AN - SCOPUS:85014776383
VL - 26
JO - Smart Materials and Structures
JF - Smart Materials and Structures
SN - 0964-1726
IS - 3
M1 - 035048
ER -