【今晚 20:00 - 21:30】IJSNM讲座 - 丹麦技术科学院院士Anne Ladegaard Skov教授

2023-12-12 15:55   黑龙江  

宣传海报


报告时间

2023年12月12日 北京时间 20:00 - 21:30


报告题目


Hair-thin dielectric elastomer fiber actuators


主办方

国际智能与纳米材料杂志

International Journal of Smart and Nano Materials


观看方式

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报告人介绍 

Prof. Anne Ladegaard Skov

Technical University of Denmark (DTU)


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Anne Ladegaard Skov is a professor specializing in silicone elastomers at the Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU). She held a Carlsberg research fellowship at Cambridge University, UK, before taking up a position as assistant professor at DTU. In 2015, she became the leader of the Danish Polymer Centre, and in 2017, she was promoted to full professor. In 2023, she has been appointed as member of the Danish Academy of Technical Sciences (ATV). She has received multiple prizes for her work on elastomers, such as Grundfosprisen, Elastyrenprisen and the Statoil Award. Functionalisation and formulation of silicone elastomers with focus on silicone elastomers used and optimised for dielectric elastomers and more recently for flexible electronics and drug delivery are the core of her research. She has published 177 publications and holds multiple patents on elastomers that are currently developed commercially by international and national companies. She has established 3 spinout companies based on her research. Currently, she is the principal investigator on a 7 mio EURO project funded by the Novo Nordisk Foundation to make soft wearables in collaboration with Professors Herbert Shea (EPFL) and Neel Joshi (Northeastern University), and the presented work in this lecture is a result of this.



报告摘要


Silicone dielectric elastomer fibers are highly flexible and can present linear actuation in response to external stimuli, thereby mimicking natural muscles. When integrated into soft robotic systems, these fibers can form muscle-like structures that can closely replicate the functions of biological muscles, thus making them one of the most promising materials for artificial muscles. In this work, we developed a wet spinning process and a photocurable thiol-ene-based silicone resin to fabricate silicone hollow fibers. The dimensions of the fibers are adjusted by modifying the flow rate of the silicone layer and internal removable solvent during the spinning process. The optimized silicone fiber has an external diameter of 463 µm and uniform wall thickness of 78 µm. The developed silicone fiber exhibits enhanced tensile properties, with a 596 % strain at break and 0.64 MPa tensile strength, compared to these of the planar film (86% strain at break and 0.14 MPa tensile strength). The fiber actuator with a transparency of 90 % is assembled by injecting ionic liquid as the core electrode and dip-coating ionogel as the electrical outer sheath. The fiber actuator demonstrates a large linear strain of 9 % and repeatable linear actuation strain over 1000 cyclic actuations. Furthermore, the fiber actuator can be assembled into bundles by winding a long fiber into a bunch for increased forces. Inspired by a human arm, a weight-lifting system with Lego models demonstrates the high potential of the fiber actuator as artificial muscles.



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期刊介绍

International Journal of Smart and Nano Materials


名誉主编:

杜善义 院士,哈尔滨工业大学

Ken P. Chong 教授,华盛顿大学

主编:

冷劲松 院士,哈尔滨工业大学


International Journal of Smart and Nano Materials是哈尔滨工业大学和Taylor & Francis集团合作出版的开放获取英文期刊,拥有由知名学者组成的国际化编委团队。IJSNM 被Science Citation Index数据库收录,2021年影响因子为4.0。


IJSNM主要发表国内外智能材料、智能结构力学与设计、多功能纳米材料等领域的最新研究成果和前沿进展,涵盖智能材料与结构、多功能纳米复合材料、4D打印技术、仿生结构、柔性机器人、传感器、结构健康监测等领域,主要刊登具有创新性的综述论文(Review Articles)、研究论文(Research Articles)和短篇报道(Short Communications)等。


IJSNM所有文章接收后即可在线发布并获得引用,欢迎广大学者将最新研究论文投稿至IJSNM。


期刊主页:https://www.tandfonline.com/toc/tsnm20/current

投稿地址:

https://rp.tandfonline.com/submission/create?journalCode=TSNM

编辑部联系方式:

Email:ijsnm@hit.edu.cn; ijsnm_journal@hit.edu.cn

Tel.: 0451-86413401; 0451-86413403


引用数据:

Web of Science (SCIE). EI、Scopus、Inspec等20多个数据库收录

  • 3.9 (2022) Impact Factor

  • 5.9 (2022) CiteScore


处理速度:

  • 12 days avg. from submission to first decision

  • 24 days avg. from submission to first post-review decision

  • 12 days avg. from acceptance to online publication

  • 25% acceptance rate


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