Highly Bendable Ionic Electro-responsive Artificial Muscles Using Microfibrillated Cellulose Fibers Combined with Polyvinyl Alcohol  

作　　者：Congqing Deng Shanqi Zheng Ke Zhong Fan Wang 

机构地区：[1]School of Mechanical Engineering,Zhejiang Sci-Tech University,Hangzhou,310018,China

出　　处：《Journal of Bionic Engineering》2024年第5期2313-2323,共11页仿生工程学报(英文版)

基　　金：supported by National Natural Science Foundation of China(51525504,51905487,12102393);Bellwethers Research and Development Plan of Zhejiang Province of China(Grant No.2023C01045);Fundamental Research Funds of Zhejiang Sci-Tech University(24242115-Y);Natural Science Foundation of Zhejiang Province(LY21E050023);Zhejiang Provincial General Scientific Research Projects Fund of China under Grant Y202353093.

摘　　要：For promising applications such as soft robotics,flexible haptic monitors,and active biomedical devices,it is important to develop ultralow voltage,highly-performant artificial muscles with high bending strains,rapid response times,and superior actuation endurance.We report a novel highly performant and low-cost artificial muscle based on microfibrillated cellulose(MFC),ionic liquid(IL),and polyvinyl alcohol(PVA),The proposed MFC-IL-PVA actuator exhibits excellent electro-chemical performance and actuations characteristics with a high specific capacitance of 225 mF/cm2,a large bending strain of 0.51%,peak displacement up to 7.02 mm at 0.25 V ultra-low voltage,outstanding actuation flexural endurance(99.1%holding rate for 3 h),and a wide frequency band(0.1-5 Hz).These attributes stem mainly from its high specific surface area and porosity,tunable mechanical properties,and the strong ionic interactions of cations and anions with MFC and PVA in ionic liquids.Furthermore,bionic applications such as bionic flytraps,bionic butterflies with vibrating wings,and smart circuit switches have been successfully realized using this technology.These specific bionic applications demonstrate the versatility and potential of the MFC-IL-PVA actuator,highlighting its important role in the fields of bionic engineering,robotics,and smart materials.They open up new possibilities for innovative scientific research and technological applications.

关 键 词：Artificial muscles Ionic actuators Microfibrillated cellulose Bionic applications 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TB383[自动化与计算机技术—控制科学与工程]