材料科学
压阻效应
自愈水凝胶
石墨烯
纳米技术
纳米材料
复合材料
纳米
千分尺
碳纳米管
机器人
极限抗拉强度
计算机科学
机械工程
人工智能
高分子化学
工程类
作者
Chaoyang Lyu,Bo Wen,Yang Bai,Da-Ning Luo,Xin Wang,Qingfeng Zhang,Chenyang Xing,Tiantian Kong,Dongfeng Diao,Xi Zhang
标识
DOI:10.1038/s41378-023-00571-7
摘要
Abstract A novel bone-inspired fatigue-resistant hydrogel with excellent mechanical and piezoresistive properties was developed, and it exhibited great potential as a load and strain sensor for underwater robotics and daily monitoring. The hydrogel was created by using the high edge density and aspect ratio of graphene nanosheet-embedded carbon (GNEC) nanomaterials to form a three-dimensional conductive network and prevent the expansion of microcracks in the hydrogel system. Multiscale progressive enhancement of the organic hydrogels (micrometer scale) was realized with inorganic graphene nanosheets (nanometer scale). The graphene nanocrystals inside the GNEC film exhibited good electron transport properties, and the increased distances between the graphene nanocrystals inside the GNEC film caused by external forces increased the resistance, so the hydrogel was highly sensitive and suitable for connection to a loop for sensing applications. The hydrogels obtained in this work exhibited excellent mechanical properties, such as tensile properties (strain up to 1685%) and strengths (stresses up to 171 kPa), that make them suitable for use as elastic retraction devices in robotics and provide high sensitivities (150 ms) for daily human monitoring.
科研通智能强力驱动
Strongly Powered by AbleSci AI