Enhanced stretchability and robustness towards flexible ionotronics via double-network structure and ion-dipole interactions
CHEMICAL ENGINEERING JOURNAL(2022)
摘要
Ionic conductive gels enabled by ionic liquids (ionogels) are promising candidates for flexible electronics due to less concerns on liquid evaporation and leakage. However, it is still a challenge to simultaneously enhance the strength and stretchability for an ionogel. Here, we report a mechanically robust and stretchable ionogel, employing fluorinated acrylic monomers to construct double network (DN) structure and ion-dipole interactions between ionic liquid and the resulted polymer backbone. The highly transparent ionogels present excellent mechanical properties, with ultimate stretchability up to 784% and strength 5.6 MPa. Noticeably, the addition of ionic liquid up to 30% results in a substantial increase of stretchablity without sacrificing the ultimate stress, due to the strong ion-dipole interactions. With a good conductivity (10(-4 )to 10-5 S cm(-1)), the ionogels can be used as flexible conductors for electroluminescent devices and wearable strain sensors, both displaying excellent per-formance. This study provides a practical strategy on the fabrication of robust and stretchable ionogels for flexible ionotronics.
更多查看译文
关键词
Ionogel,Fluorinated polymer,Double network,Ion-dipole interaction,Flexible device
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要