Energy harvesting textiles(EHTs)have attracted much attention in wearable electronics and the internet-of-things for real-time mechanical energy harvesting associated with human activities.However,to satisfy practical...Energy harvesting textiles(EHTs)have attracted much attention in wearable electronics and the internet-of-things for real-time mechanical energy harvesting associated with human activities.However,to satisfy practical application requirements,especially the demand for long-term use,it is challenging to construct an energy harvesting textile with elegant trade-off between mechanical and triboelectric performance.In this study,an energy harvesting textile was constructed using natural silk inspired hierarchical structural designs combined with rational material screening;this design strategy provides multiscale opportunities to optimize the mechanical and triboelectric performance of the final textile system.The resulting EHTs with traditional advantages of textiles showed good mechanical properties(tensile strength of 237±13 MPa and toughness of 4.5±0.4 MJ m−3 for single yarns),high power output(3.5 mW m−2),and excellent structural stability(99%conductivity maintained after 2.3 million multi-type cyclic deformations without severe change in appearance),exhibiting broad application prospects in integrated intelligent clothing,energy harvesting,and human-interactive interfaces.展开更多
为探讨加捻程度及氨纶预牵伸倍数对Tencel弹力包芯纱性能的影响,简介了在改装后的环锭细纱机上纺制14.8 tex+40 D Tencel/氨纶包芯纱的技术措施,并对成纱的外观结构和力学性能进行了分析和测试。结果表明:捻系数、氨纶的预牵伸倍数对成...为探讨加捻程度及氨纶预牵伸倍数对Tencel弹力包芯纱性能的影响,简介了在改装后的环锭细纱机上纺制14.8 tex+40 D Tencel/氨纶包芯纱的技术措施,并对成纱的外观结构和力学性能进行了分析和测试。结果表明:捻系数、氨纶的预牵伸倍数对成纱的断裂强力和伸长率等指标均有不同程度的影响,因此,对纺制Tencel/氨纶弹力包芯纱时,应选择适宜的捻系数和氨纶的预牵伸倍数。展开更多
基金supported by the National Natural Science Foundation of China (No. 51973116, U1832109, 21935002)Shanghai Pujiang Program (18PJ1408600)the starting grant of ShanghaiTech University and Shanghai Sailing Program (17YF1411500)
文摘Energy harvesting textiles(EHTs)have attracted much attention in wearable electronics and the internet-of-things for real-time mechanical energy harvesting associated with human activities.However,to satisfy practical application requirements,especially the demand for long-term use,it is challenging to construct an energy harvesting textile with elegant trade-off between mechanical and triboelectric performance.In this study,an energy harvesting textile was constructed using natural silk inspired hierarchical structural designs combined with rational material screening;this design strategy provides multiscale opportunities to optimize the mechanical and triboelectric performance of the final textile system.The resulting EHTs with traditional advantages of textiles showed good mechanical properties(tensile strength of 237±13 MPa and toughness of 4.5±0.4 MJ m−3 for single yarns),high power output(3.5 mW m−2),and excellent structural stability(99%conductivity maintained after 2.3 million multi-type cyclic deformations without severe change in appearance),exhibiting broad application prospects in integrated intelligent clothing,energy harvesting,and human-interactive interfaces.
文摘为探讨加捻程度及氨纶预牵伸倍数对Tencel弹力包芯纱性能的影响,简介了在改装后的环锭细纱机上纺制14.8 tex+40 D Tencel/氨纶包芯纱的技术措施,并对成纱的外观结构和力学性能进行了分析和测试。结果表明:捻系数、氨纶的预牵伸倍数对成纱的断裂强力和伸长率等指标均有不同程度的影响,因此,对纺制Tencel/氨纶弹力包芯纱时,应选择适宜的捻系数和氨纶的预牵伸倍数。
