摘要
通过巯基修饰表面富含缺陷的花状MoS_(2)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-MoS_(2)-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 MoS_(2)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-MoS_(2)-PAM nanocomposite hydrogels without thiol modification.In addition, the hydrogel can achieve 96% of self-healing efficiency under near-infrared light induction.
作者
夏圆圆
刘维怡
秦海利
XIA Yuan-yuan;LIU Wei-yi;QIN Hai-li(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《现代化工》
CAS
CSCD
北大核心
2023年第3期140-145,共6页
Modern Chemical Industry
基金
安徽省自然科学基金面上项目(1708085MB30)。
