Zhang Shanshan, Li Zhen, Huang Pei, Lu Yamei, Wang Pengfei
Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China.
Membranes (Basel). 2020 Nov 19;10(11):354. doi: 10.3390/membranes10110354.
Ionogels combine the advantages of being conductive, stretchable, transparent and nonvolatile, which makes them suitable to be applied as conductors for flexible electronic devices. In this paper, a series of ionogels based on 1-ethyl-3-methylimidazolium ethyl-sulfate ([Cmim][EtSO]) and polyacrylic networks were prepared. Silica nanoparticles (SNPs) were dispersed into the ionogel matrix to enhance its mechanical properties. The thermal, mechanical and electrical properties of the ionogels with various contents of crosslinking agents and SNPs were studied. The results show that a small amount of SNP doping just increases the breaking strain/stress and the nonvolatility of ionogels, as well as maintaining adequate conductivity and a high degree of transparency. Furthermore, the experimental results demonstrate that SNP-reinforced ionogels can be applied as conductors for dielectric elastomer actuators and stretchable wires, as well as for signal transmission.
离子凝胶兼具导电、可拉伸、透明和不挥发的优点，这使其适合用作柔性电子设备的导体。本文制备了一系列基于1-乙基-3-甲基咪唑硫酸乙酯（[Cmim][EtSO]）和聚丙烯酸网络的离子凝胶。将二氧化硅纳米颗粒（SNP）分散到离子凝胶基质中以增强其机械性能。研究了具有不同交联剂和SNP含量的离子凝胶的热性能、机械性能和电性能。结果表明，少量的SNP掺杂仅增加了离子凝胶的断裂应变/应力和不挥发性，同时保持了足够的导电性和高透明度。此外，实验结果表明，SNP增强的离子凝胶可作为介电弹性体致动器和可拉伸导线的导体，以及用于信号传输。
