【摘要】 为了制备性能优异的多功能导电非织造材料，提出一种简单高效的喷涂方法，依次将液态金属（LM）、碳纳米管(CNTs)喷涂在水刺纤维素非织造布表面，经高温碳化后所得织物(记为LM/CNTs/CC)可应用于柔性应变传感器及超级电容器。首先，通过扫描电镜和X射线衍射仪对样品进行微观形貌与结构表征分析，结果表明，LM和CNTs均匀负载在织物表面，并且CNTs将分散的LM颗粒包裹并相互连接，形成连续的导电路径，有效防止了LM在实际应用中的泄露问题。然后，对织物进行传感以及电化学性能测试，当LM/CNTs/CC作为应变传感器时，其可以监测人体各部位如手指、膝盖等发生的不同运动，并作出连续响应。当LM/CNTs/CC作为超级电容器对称电极时，在0.1 mA/cm~2的电流密度下，最高面积比容量可达64 mF/cm~2，并且经过10000次充放电循环后，容量保持率为70%，表现出良好的循环稳定性。更多还原

【Abstract】 In order to prepare multifunctional conductive nonwoven materials with excellent performance, a simple and efficient spraying method was proposed, in which liquid metal(LM)and carbon nanotubes(CNTs)were sprayed onto the surface of spunlace cellulose nonwoven fabrics sequentially, and the resulting fabrics(denoted as LM/CNTs/CC) could be applied to flexible strain sensors and supercapacitors after high-temperature carbonization. Firstly, the samples were analyzed by scanning electron microscopy and X-ray diffractometer for microscopic morphology and structural characterization. The results showed that the LM and CNTs were uniformly loaded on the surface of the fabrics, and the CNTs wrapped the dispersed LM particles and connected them with each other to form a continuous conductive pathway, which effectively prevented the leakage of the LM in the practical application. Then, the fabrics were tested for sensing and electrochemical properties. When LM/CNTs/CC was used as a strain sensor, it could monitor different movements occurring in various parts of the human body, such as finger, knee, etc., and make a continuous response. When LM/CNTs/CC was employed as the symmetric electrode of supercapacitor, a high area specific capacity of 64 mF/cm~2 was obtained at a current density of 0.1 mA/cm~2, and the capacity retention rate maintained at 70 % after 10,000 charge/discharge cycles, which showed good cycling stability.更多还原