TY - JOUR
T1 - Mechanism for anisotropic thermal expansion of polyamide fibers
AU - Kimura, Daisuke
AU - Irisawa, Toshihira
AU - Takagi, Kentaro
AU - Tahara, Kenji
AU - Sakurai, Daichi
AU - Watanabe, Haruhiko
AU - Takarada, Wataru
AU - Shioya, Masatoshi
N1 - Funding Information:
Part of this work was supported by JSPS KAKENHI, Grant Numbers JP 17H03204 and 20H00610. We would like to thank the Mikawa Textile Research Center for their cooperation in the preparation of the fibers.
Funding Information:
Part of this work was supported by JSPS KAKENHI , Grant Numbers JP 17H03204 and 20H00610 . We would like to thank the Mikawa Textile Research Center for their cooperation in the preparation of the fibers.
Publisher Copyright:
© 2021
PY - 2021/10/1
Y1 - 2021/10/1
N2 - This paper examines the validity of the contribution of entropy elasticity, which has been vaguely considered to be the main cause of the thermal expansion behavior of the untwisted fiber. Thereafter, we indicate the inconsistencies and propose a new possible physical principle. A new high-order structural model that can effectively cause anisotropic thermal expansion of fibers is proposed. The observed results verify our proposal, and further show its validity and correctness. The twisted fiber actuator, which has garnered significant attention in recent years, is driven by the anisotropic thermal expansion of an untwisted fiber, which is the precursor of the twisted fiber. Analyzing the physical principle of the thermal expansion behavior of the untwisted fiber is to obtain the knowledge for improving performance of the actuator.
AB - This paper examines the validity of the contribution of entropy elasticity, which has been vaguely considered to be the main cause of the thermal expansion behavior of the untwisted fiber. Thereafter, we indicate the inconsistencies and propose a new possible physical principle. A new high-order structural model that can effectively cause anisotropic thermal expansion of fibers is proposed. The observed results verify our proposal, and further show its validity and correctness. The twisted fiber actuator, which has garnered significant attention in recent years, is driven by the anisotropic thermal expansion of an untwisted fiber, which is the precursor of the twisted fiber. Analyzing the physical principle of the thermal expansion behavior of the untwisted fiber is to obtain the knowledge for improving performance of the actuator.
UR - http://www.scopus.com/inward/record.url?scp=85107876631&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85107876631&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2021.130262
DO - 10.1016/j.snb.2021.130262
M3 - Article
AN - SCOPUS:85107876631
SN - 0925-4005
VL - 344
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
M1 - 130262
ER -