Fatigue‑Resistant and Hysteresis‑Free Composite Fibers with a Heterogeneous Hierarchical Structure

作     者：Siming Li Junwei Xu Yan Mu Peng Wang Heng Zhu Binhong Liu Zhe Chen Zilong Han Shaoxing Qu 

作者机构：Eye Center of the Second Affiliated HospitalState Key Laboratory of Fluid Power&Mechatronic SystemKey Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceCenter for X‑Mechanicsand Department of Engineering MechanicsZhejiang UniversityHangzhou 310027China 

出 版 物：《Advanced Fiber Materials》 (先进纤维材料（英文）)

年 卷 期：2023年第5卷第5期

页      面：1643-1656页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.12132014,U22A20255) the 111 Project(No.B21034) Key Research and Development Program of Zhejiang Province(2020C05010) the Fundamental Research Funds for the Central Universities(Zhejiang University NGICS Platform) We gratefully acknowledge Shufen Dai and Lingyi Lan for their help in the experiments and/or discussions.And we thank the site(https://smart.servi er.com/)for providing the human artery diagram 

主　　题：Heterogeneous hierarchical structure Composite fibers Fatigue resistance Hysteresis free Wearable electronic devices 

摘      要：Fatigue-resistant and hysteresis-free composite fibers hold great promise for the next generation of wearable electronic *** this study,a novel approach for the fabrication of composite fibers with outstanding elasticity and mechanical stability is *** design incorporates a heterogeneous hierarchical structure(HHS),which mimics the structure of arteries,to achieve enhanced fatigue resistance and hysteresis-free *** composite fibers,Ecoflex-polyacrylamide fibers(EPFs),are created through the combination of heterogeneous elastomers and strong interfacial *** results show that the EPFs exhibit exceptional fatigue resistance,being able to withstand up to 10,000 load–unload cycles at strains of 300%without any noticeable changes in their mechanical *** potential applications of these EPFs are demonstrated through their use as strain sensors for monitoring human motion in both air and water,as well as in energyharvesting e-textiles.