期刊
APPLIED SCIENCES-BASEL
卷 10, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/app10051829
关键词
Nafion; Bionic actuator; Smart materials; Graphite; humidity response; optical response
类别
资金
- National Natural Science Foundation of China [61205095]
- Shanghai Young College Teacher Develop funding schemes [slg11006]
Featured Application This stimulus-driven, fast-response and large-scale deformation flexible actuator provides a new alternative for bionic application, artificial skin, and soft sensor development. Abstract The demand for multi-functional soft actuators with simple fabrication and fast response to multiple stimuli is increasing in the field of smart devices. However, for existing actuators that respond to a single stimulus, it is difficult to meet the requirements of application diversity. Herein, a type of multi-stimulus responsive soft actuator based on the Nafion-Polypropylene-polydimethylsiloxane (PDMS)/Graphite multilayer membranes is proposed. Such actuators have an excellent reversible response to optical/thermal and humidity stimulation, which can reach a 224.56 degrees bending angle in a relative humidity of 95% within 5 s and a maximum bending angle of 324.65 degrees in 31 s when the platform temperature is 80 degrees C, and has a faster response (<0.5 s) to optical stimuli, as an asymmetric structure allows it to bend in both directions. Based on such an actuator, some applications like flexible grippers and switches to carry items or control circuits, bionic flytraps to capture and release prey, have also been developed and studied. These provide potential applications in the fields of soft sensors, artificial skin and flexible robots.
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