通过巯基修饰表面富含缺陷的花状MoS₂纳米微球，设计出多功能纳米复合交联剂。在单体、多功能的纳米复合交联剂、引发剂和催化剂等条件下，通过自由基原位聚合制备出高强度、自修复纳米复合水凝胶。结果表明，该水凝胶断裂应变为2 297%，断裂强度达到2.87 MPa，是传统化学交联水凝胶的664.35%和1 001.16%，是不含巯基修饰的MBA-MoS₂-PAM纳米复合水凝胶的99.1%和212.64%；该材料可以在近红外光诱导下实现96%的自修复效率。

A multi-functional nano-composite crosslinking agent is designed through using thiol to modify the flower-like MoS₂ nanospheres which are rich in defects on their surfaces.Under the conditions of monomer,multifunctional nanocomposite crosslinking agent,initiator and catalyst,a high strength self-healing nanocomposite hydrogel is prepared by free radicals in-situ polymerization method.The results show that the fracture strain of the hydrogel is 2297% and the fracture strength is 2.87 MPa,which is 664.35% and 1001.16% respectively those of traditional chemical crosslinked hydrogel,and 99.1% and 212.64% respectively those of MBA-MoS₂-PAM nanocomposite hydrogels without thiol modification.In addition,the hydrogel can achieve 96% of self-healing efficiency under near-infrared light induction.

夏圆圆(1995-),女,硕士研究生,研究方向为柔性可拉伸材料,3405442298@qq.com