離子凝膠因其良好的導電性、熱穩定性、電化學穩定性及不易揮發的性質成為近年興起的熱門材料。然而目前的離子凝膠具有成本高昂、毒性較強、製程麻煩等問題。本研究提出了一種物理性綠色導電凝膠的簡易製備方法，利用深共熔溶劑結合聚乙烯醇和卡波膠兩種聚合物開發一款製程簡易、低成本、具高機械強度及自修復能力且符合綠色化學精神的導電性凝膠，在這種深共熔凝膠中，藉由微凝膠阻塞系統使聚乙烯醇產生均勻分佈的結晶域充當穩定的物理交聯劑，由氫鍵鏈結的深共熔凝膠在擁有優秀機械性質的同時又具有很強的自我癒合能力和可回收性。具體來說，這種凝膠表現出1290% 的優異拉伸性，可承受 1.02 MPa 的高強度應力，且具有0.052 S/m 的優秀導電率。由於可達到97% 的回收效率，用物理反應法製造的深共熔凝膠具有很高的耐用型。此種凝膠在可穿戴電子設備、人機系統和軟機器人技術方面具有廣闊的應用前景。;Ionogels, which are formed by immobilization of large amounts of ionic liquids (ILs) in polymeric networks, have received a lot of attention for their diverse usages in biomedical applications. However, the usage of ILs in real-life and human-related applications is limited because ILs are toxic and expensive. In this study, a green physical eutectogel based on polyvinyl alcohol and carpobol is prepared by immobilizing deep eutectic solvents (DESs) inside the polymeric complex. The eutectogel features one-step simple fabrication process, good mechanical strength, sufficient conductivity, self-healing ability and recyclability. Specifically, this gel exhibits an excellent stretchability of 1290%, a superior tensile strength of 1.02 MPa, and an excellent electrical conductivity of 0.052 S/m. An outstanding recycling rate of 97% ensures its long-term usage in practical applications. This eutectogel can find widespread uses in a variety of applications such as wearable electronics, strain sensor and soft robotics.
