基于液晶弹性体和液态金属的人造肌肉纤维的制备及分析  

Preparation and Analysis of Artificial Muscle Fibers Based on Liquid Crystal Elastomers and Liquid Metals

作　　者：逯海卿 吴兴丽 张鹏[1] 叶超超 魏文庆[1] LU Haiqing;WU Xingli;ZHANG Peng;YE Chaochao;WEI Wenqing(College of Mechanical-Electronic and Vehicle Engineering,Weifang University,Weifang 261061,Shandong,China;College of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]潍坊学院机电与车辆工程学院,山东潍坊261061 [2]沈阳工业大学机械工程学院,沈阳110870

出　　处：《材料导报》2022年第14期208-211,共4页Materials Reports

基　　金：山东省自然科学基金(ZR2018PEE012;ZR2020ME001)。

摘　　要：本工作提出一种高效、低成本的新型人造肌肉纤维的制备方法。该方法将液态金属加热器完全嵌入到人造肌肉纤维中,使新型肌肉纤维同时具备液晶弹性体优异的致动性能和液态金属的类液态可变形性能,该结构可以避免肌肉纤维在发生较大变形时,由于加热器损伤而导致的肌肉纤维失效现象。利用红外摄像机和拉力试验机对新型人造肌肉纤维材料的驱动性能进行实验分析,包括其表面温度、收缩率和拉力受电流大小、加热时间和材料尺寸的变化所产生的影响等。结果表明,新型人造肌肉纤维材料具有较好的柔韧性、驱动性和高可变形性能,对液晶弹性体驱动机构的柔性设计和开发具有一定的指导意义,此方法可广泛应用于软体机器人、假肢及生物医疗设备的设计开发中。This work presents an efficient low-cost method for the preparation of new artificial muscle fiber material.The liquid metal heater is completely embedded into the artificial muscle fiber,so that the material possesses both the excellent actuation performance of liquid crystal elastomer and the liquid-like deformability of liquid metal.This structure can avoid the muscle fiber failure phenomenon caused by the heater damage when the muscle fiber deforms greatly.Using infrared camera and tensile testing machine,the driving performance of the new artificial muscle fiber material was analyzed,including its surface temperature,shrinkage and tensile force affected by the change of current,heating time and material size.The results show that the new artificial muscle fiber material has good flexibility,drive ability and high deformation resistance,which has certain guiding significance for the design and development of the flexible system of the liquid crystal elastomer drive mechanism.This method can be widely used in the design and development of soft robots,artificial limbs and biomedical equipment.

关 键 词：人造肌肉 液晶弹性体 液态金属 电流 

分 类 号：TH145.4[一般工业技术—材料科学与工程]