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Multistimuli-Responsive Intrinsic Self-Healing Epoxy Resin Constructed by Host–Guest Interactions
Macromolecules ( IF 5.5 ) Pub Date : 2018-07-11 00:00:00 , DOI: 10.1021/acs.macromol.8b01124
Zhen Hu 1 , Dayu Zhang 1 , Fei Lu 1 , Weihao Yuan 1 , Xirong Xu 1 , Qian Zhang 1 , Hu Liu 2, 3 , Qian Shao 4 , Zhanhu Guo 3 , Yudong Huang 1
Affiliation  

The self-healing abilities inside polymeric materials are desirable functions in materials science. Host–guest chemistry, combined with excellent properties of graphene, was used for the construction of multistimuli-responsive intrinsic self-healing epoxy materials. By ultraviolet (UV) curing, the unsaturated epoxy resin was connected with β-cyclodextrin/graphene complex through free radical copolymerization. The introduced complex, acting as macro-cross-linker and photothermal agent, can reconnect the damage-induced broken bonds through dynamic host–guest interaction. In this work, the epoxy composites exhibited a high healing efficiency of up to 79.2% and tensile strength of up to 20.8 MPa under heating or near-infrared stimulation, which represent relatively excellent values among all the reported intrinsic self-healing epoxy resin and host–guest self-healing systems.

中文翻译:

主客体相互作用构建的多刺激响应性内在自修复环氧树脂

聚合材料内部的自我修复能力是材料科学中理想的功能。主体-客体化学与石墨烯的优异性能相结合,被用于构建多刺激响应的固有自修复环氧材料。通过紫外线(UV)固化,不饱和环氧树脂通过自由基共聚与β-环糊精/石墨烯络合物连接。引入的复合物可作为宏观交联剂和光热剂,可以通过动态的主客体相互作用重新连接损伤诱导的断裂键。在这项工作中,环氧复合材料在加热或近红外刺激下表现出高达79.2%的高愈合效率和高达20.8 MPa的拉伸强度,
更新日期:2018-07-11
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