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具有可调非线性角变形的柔性离子电活性聚合物致动器

Soft Ionic Electroactive Polymer Actuators with Tunable Non-Linear Angular Deformation.

作者信息

Hong Wangyujue, Almomani Abdallah, Chen Yuanfen, Jamshidi Reihaneh, Montazami Reza

机构信息

Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA.

Department of Aerospace Engineering, Iowa State University, Ames, IA 50011, USA.

出版信息

Materials (Basel). 2017 Jun 21;10(6):664. doi: 10.3390/ma10060664.

DOI:10.3390/ma10060664
PMID:28773036
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5554045/
Abstract

The most rational approach to fabricate soft robotics is the implementation of soft actuators. Conventional soft electromechanical actuators exhibit linear or circular deformation, based on their design. This study presents the use of conjugated polymers, Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) to locally vary ion permeability of the ionic electroactive polymer actuators and manipulate ion motion through means of structural design to realize intrinsic angular deformation. Such angular deformations are closer to biomimetic systems and have potential applications in bio-robotics. Electrochemical studies reveal that the mechanism of actuation is mainly associated with the charging of electric double layer (EDL) capacitors by ion accumulation and the PEDOT:PSS layer's expansion by ion interchange and penetration. Dependence of actuator deformation on structural design is studied experimentally and conclusions are verified by analytical and finite element method modeling. The results suggest that the ion-material interactions are considerably dominated by the design of the drop-cast PEDOT:PSS on Nafion.

摘要

制造软机器人最合理的方法是采用软致动器。传统的软机电致动器根据其设计呈现线性或圆形变形。本研究提出使用共轭聚合物聚（3,4 - 乙撑二氧噻吩）- 聚（苯乙烯磺酸盐）（PEDOT:PSS）来局部改变离子电活性聚合物致动器的离子渗透性，并通过结构设计手段操纵离子运动，以实现固有角变形。这种角变形更接近仿生系统，在生物机器人领域具有潜在应用。电化学研究表明，致动机制主要与离子积累使双电层（EDL）电容器充电以及离子交换和渗透导致PEDOT:PSS层膨胀有关。通过实验研究了致动器变形对结构设计的依赖性，并通过解析和有限元方法建模验证了结论。结果表明，离子与材料的相互作用在很大程度上受Nafion上滴铸PEDOT:PSS的设计主导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/1db6ec229f2d/materials-10-00664-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/428940dc0302/materials-10-00664-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f72f5afec6a7/materials-10-00664-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/69b85219f0ae/materials-10-00664-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/ce1a094323c0/materials-10-00664-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f58c4aee3ada/materials-10-00664-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/7b807b463785/materials-10-00664-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f5ffc0cd8548/materials-10-00664-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/9822d037e608/materials-10-00664-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/1db6ec229f2d/materials-10-00664-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/428940dc0302/materials-10-00664-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f72f5afec6a7/materials-10-00664-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/69b85219f0ae/materials-10-00664-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/ce1a094323c0/materials-10-00664-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f58c4aee3ada/materials-10-00664-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/7b807b463785/materials-10-00664-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/f5ffc0cd8548/materials-10-00664-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/9822d037e608/materials-10-00664-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3659/5554045/1db6ec229f2d/materials-10-00664-g009.jpg

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