形状记忆合金复合纱线及其面料驱动性能  

Shape memory alloy composite yarn and its fabric actuation performance

作　　者：付驰宇 徐傲 齐硕 王凯 缪莹 尚路路 夏治刚[1,2,4] FU Chiyu;XU Ao;QI Shuo;WANG Kai;MIAO Ying;SHANG Lulu;XIA Zhigang(State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,Hubei 430200,China;College of Textile Science and Engineering,Wuhan Textile University,Wuhan,Hubei 430200,China;Institute for Frontier Materials,Deakin University,Geelong 3216,Australia;State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University,Qingdao,Shandong 226071,China)

机构地区：[1]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430200 [2]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [3]迪肯大学前沿材料研究所,澳大利亚吉朗3216 [4]省部共建生物多糖纤维成形与生态纺织国家重点实验室,山东青岛226071

出　　处：《纺织学报》2023年第6期91-97,共7页Journal of Textile Research

基　　金：湖北省重大科技专项(2020BA082);省部共建生物多糖纤维成形与生态纺织国家重点实验室(青岛大学)开放课题(KF2020215)。

摘　　要：为研究开发高性能纺织基人工肌肉,设计并制备了以镍钛合金为芯丝、聚酰亚胺纤维为外包纤维的热驱动复合纱线致动器。利用该复合包芯纱成功制备了一种形状可编程的机织物致动器,并初步探索了复合纱线及其织物的力学性能和热驱动特性。研究结果表明:复合纱线及其织物受热驱动后将恢复到初始线性状态,加载的温度越高,形状记忆复合纱线的模量越大,回复应力也越大;该纱线具有良好的电加热和热稳定性能,加载的电流和电压越大,纱线温度越高,达到稳定态的时间越短;纱线在5 V电压下能在6.2 s内完成驱动。该复合织物致动器具有耐高温、形状可编程的特性,可实现不同模式的驱动。Objective Artificial muscles have shown great importance in the development of wearable devices,exoskeletons,prosthetics and robotics in recent years.Although many artificial muscles based on the novel actuation technologies have been reported,challenges such as single actuation form,complex processing and limited flexibility remain to be addressed.Textile-based artificial muscles exhibit high flexible and light weight properties,but the actuation performance still needs to be enhanced.In order to investigate and develop textile-based artificial muscles with high-performance,it is highly desirable to combine the active materials with textiles.Method A thermally driven composite yarn actuator with Ni-Ti alloy as the core and polyimide(PI)fiber as the sheath was designed.Specifically,the Ni-Ti alloy filaments were covered by the PI fiber on a friction machine.Due to the good thermal stability of the PI fibers and excellent thermal actuate performance of Ni-Ti alloy filaments,the fabricated yarns can respond to the heat.In addition,thanks to the good conductivity of the alloy filaments the fabricated yarn and fabric are able to be actuated by the electrothermal.Results A shape-programmable woven fabric actuator was successfully prepared using the composite yarn,the mechanical properties and thermally driven characteristics of the composite yarn and its fabric were initially explored.The results showed that the composite yarns exhibit a hierarchical structure with PI fiber uniformly covering the shape memory alloy filament,which greatly enhanced the wearability of the fabrics.The phase transition temperature of the shape memory alloy was determined by differential scanning calorimetry(DSC)analysis.The mechanical performance test results showed that as the temperature increases,the shape memory alloy filament transformed from the martensitic phase to the austenitic phase,leading to an increase in the modulus of the filament.The obtained yarns showed excellent electrical and thermal properties with temperature up to 35

关 键 词：形状记忆合金长丝 复合包芯纱 软致动器 可编程人工肌肉 

分 类 号：TB333[一般工业技术—材料科学与工程]