Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 17, Pages 15122-15128Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b00396
Keywords
soft actuators; polyethylene; anisotropy; multiresponse; dual-mechanism
Funding
- Natural Science Foundation of China [51672043, 61674028]
- Shanghai Natural Science Foundation [15ZR1401200, 16ZR1401500]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Program of Shanghai Academic Research Leader [16XD1400100]
- Science and Technology Commission of Shanghai Municipality [16JC1400700]
- Shanghai Municipal Education Commission [2017-01-07-00-03-E00055]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
- Shanghai ChenGuang Program [15CG33]
- Shanghai Sailing Program [16YF1400400]
- Young Elite Scientists Sponsorship Program by CAST [2017QNRC001]
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Soft actuators have attracted a lot of attention owing to their biomimetic performance. However, the development of soft actuators that are easily prepared from readily available raw materials, conveniently utilized, and cost-efficient is still a challenge. Here, we present a simple method to fabricate a polyethylene-based soft actuator. It has controllable anisotropic structure and can realize multiple motions, including bidirectional bending and twisting based on dual mechanisms, which is a rare phenomenon. Especially, the soft actuators can response at a very small temperature difference (Delta T > 2.3 degrees C); therefore, even skin touch can quickly drive the actuator, which greatly broadens its applications in daily life. The soft actuator could demonstrate a curvature up to 7.8 cm(-1) accompanied by powerful actuation. We have shown that it can lift an object 27 times its own weight. We also demonstrate the application of this actuator as intelligent mechanical devices.
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