用于柔性可穿戴织物的高分子基多级螺旋纤维的仿生制备

Due to with unique physicochemical property and geometric configuration, one-dimension fibrous materials have broad applications in many fields. With the development of intelligent electronic devices and wearable equipment, the demand for new low-cost fiber with high performance is more and more prominent. In this background, we will design and prepare new hierarchically helical fiber by introducing spinning method combined with mechanical stress control. i.e., analyze multiscale structure by FEA, obtain wearable materials with integrated hierarchical structure and practical function, illuminate the relationship of material composition, multiscale geometric construction and mechanical behavior, further explore the application in green, flexible and intelligent wearable electronic fabrics. This project can not only present a simple and general method for polymer-based helical fiber controllable preparation, but also provide theoretical basis and technical support for the preparation of high performance fiber. This study provides scientific support for the technological innovation and lightweight development of flexible intelligent wearable devices.

由于具有独特的物理化学性质和几何结构优势，一维纤维材料在很多领域都具有重要的应用。随着智能电子器件和可穿戴设备的发展，新型低成本高性能纤维的需求越来越突出。在此背景下，本项目拟采用纺丝法结合机械控制技术，仿生设计并制备新型高分子基多级螺旋结构纤维；有限元分析各级结构，获得结构和功能集成的可编织材料，阐明材料组成-多级几何结构-力学性能的关系，探索其在绿色柔性智能可穿戴电子织物方面的进一步应用。该项目将为多尺度高分子基螺旋纤维的可控制备提供一个简单、通用的方法，为制备高性能纤维提供理论依据与技术支持，为柔性智能可穿戴织物核心基元的技术创新和轻量化发展提供科学支撑。

由于具有独特的物理化学性质和几何结构优势，多级纤维材料在很多领域都具有重要的应用。随着智能电子器件和可穿戴设备的发展，新型低成本高性能纤维的需求越来越突出。在此背景下，本项目主要采用静电纺丝法结合机械工程技术，仿生设计并制备了高分子基多级结构纤维，包括螺旋纤维和核壳纤维；通过物理前处理和化学后处理，对其外部形貌和内部微结构进行了调控优化；对纤维进行整体有限元分析，阐明了材料组成-多级几何结构-力学性能之间的构效关系；获得了结构和功能集成的可编织材料；探究了其在柔性智能可穿戴电子织物、液体输运、生物组织等方面的应用。该项目为多级高分子基纤维的可控制备提供一个简单、通用的方法，为柔性智能可穿戴织物核心基元的技术创新和轻量化发展提供了科学支撑。相关成果发表于PNAS、ACS Nano和纺织学报等，受到国家科技部和专业网站的报道和评价。

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