One-step and Continuous Fabrication of Coaxial Piezoelectric Fiber for Sensing Application  

作　　者：Shuai-Shuai Gui Bing-Xu Da Fei Peng Guo-Qiang Zheng Kun Dai Chun-Tai Liu Chang-Yu Shen 

机构地区：[1]College of Materials Science and Engineering,Key Laboratory of Material Processing and Mold(Ministry of Education),Henan Key Laboratory of Advanced Nylon Materials and Application,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Journal of Polymer Science》2023年第11期1778-1785,I0009,共9页高分子科学(英文版)

基　　金：the National Natural Science Foundation of China(No.51873199);Program for Innovative Research Team(in Science and Technology)in University(No.20IRTSTHN002)。

摘　　要：Although there has been rapid advancement in piezoelectric sensors,challenges still remain in developing wearable piezoelectric sensors by a one-step,continuous and environmentally friendly method.In this work,a 1D flexible coaxial piezoelectric fiber was directly fabricated by melt extrusion molding,whose core and sheath layer are respectively slender steel wire(i.e.,electrode)and PVDF(i.e.,piezoelectric layer).Moreover,such 1D flexible coaxial piezoelectric fiber possesses short response time and high sensitivity,which can be used as a selfpowered sensor for bending and vibration sensing.More interestingly,such 1D flexible coaxial piezoelectric fiber(1D-PFs)can be further endowed with 3D helical structure.Moreover,a wearable and washable motion monitoring system can be constructed via braiding such 3D helical piezoelectric fiber(3D-PF)into commercial textiles.This work paves a new way for developing 1D and 3D piezoelectric fibers through a one-step,continuous and environmentally friendly method,showing potential applications in the field of sensing and wearable electronics.

关 键 词：Coaxial piezoelectric fiber Melt extrusion molding Bending and vibration sensing Motion monitoring system 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN818[自动化与计算机技术—控制科学与工程]