Recent advances in tough and self-healing nanocomposite hydrogels for shape morphing and soft actuators

编号 020023404

推送时间 20200413

研究领域 林产化工 

年份 2020 

类型 期刊 

语种 英语

标题 Recent advances in tough and self-healing nanocomposite hydrogels for shape morphing and soft actuators

来源期刊 European Polymer Journal

期 第234期

发表时间 20191218

关键词 Nanocomposite hydrogels;  Stretchability;  Toughness;  Responsiveness;  Soft actuators; 

摘要 This review article accounts most recent progresses on tough, stretchable and self-healing nanocomposite hydrogels and potential applications. Nanoparticles including silica spheres, clay nanorods, nanotubes, nanosheets, and graphene and derivatives have been used to adsorb or chemically bond polymer chains into three-dimension networks. Reversible detachment of polymer chains from nanoparticles not only entitles stretchability and toughness, but also makes the hydrogels self-healable and recoverable. Moreover, soft and flexible micelles of surfactants and block copolymers are used as macro-crosslinkers and centers for energy dissipation. The hydrophobic association within the micelle cores is critical for the improved mechanical properties of the hydrogels. The nanocomposite structures are combined with other non-covalent interactions including supramolecular recognition, metal ion coordination and hydrogen bonding to further mediate the mechanical properties and functionalities of the hydrogels. Applications of multiresponsive nanocomposite hydrogels for shape morphing materials and soft actuators are discussed.

服务人员 尚玮姣

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