期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 346, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2022.113822
关键词
Twisted fiber-based actuator; Artificial muscle; Nylon fiber; Contraction and torsion actuation; Smart textiles
资金
- National Natural Science Foundation of China [51873166, 51873165]
- National Natural Science Foundation of China Regional Innovation and Development Joint Fund Project [U20A20257]
- Science and Technology Innovation Major Projects of Hubei Province [2019AAA035]
- Application Foundation Frontier Project of Wuhan Science and Technology Bureau [2020010601012194]
- Wuhan Advanced Fiber Engineering Technology Research Center, Ministry of Education Key Laboratory of Textile Fiber and Products
- Hubei Province Central Government Guides Local Science and Technology Development Projects [2018ZYYD057]
Twisted and coiled synthetic fibers show promise for energy conversion due to their flexibility, lightweight, and wearability. Fabricating actuators by inserting twists into polyamide 6 (PA6) fibers and yarns revealed different actuation properties, with potential applications in small spring-like robots, smart curtains, and infrared-sensitive functional gloves.
The application of twisted and coiled synthetic fibers for energy conversion is promising due to their flexibility, lightweight and wearability. Although there are significant efforts on improving the performance of twisted and coiled polymer fibers, new understanding is still required about possible effects of the fabrication parameters and the precursor fiber type on thermal actuation performance and energy conversion efficiency. Herein, two types of coiled actuators were fabricated by inserting certain numbers of twists to polyamide 6 (PA6) single fibers and yarns, and the effects of twisting numbers and precursors type on actuation responses, physical properties, and structural changes were investigated. It was demonstrated that fiber-based and yarn-based actuators had different actuation properties where the former one showed a greater actuation load and the latter one had a faster torsional actuation. Also, the yarn-based samples generated faster torsion actuations with the rotation speed up to 16,000 rpm/m, and presented higher thermal actuation sensitivity. Depending on the obtained characteristics, the prepared actuators were used in developing smart textiles for different applications such as fabricating small spring-like robot, smart curtains, and infrared-sensitive functional gloves.
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