Pressure Regulated Printing of Semiliquid Metal on Electrospinning Film Enables Breathable and Waterproof Wearable Electronics  

作　　者：Rui Guo Tianyu Li Chengjie Jiang Hui Zong Xueting Li Chunxue Wan Haixia Yu Xian Huang 

机构地区：[1]Department of Biomedical Engineering,Tianjin University,92 Weijin Road,Tianjin 300072,China [2]Flexible Wearable Technology Research Center,Institute of Flexible Electronics Technology of Tsinghua,906 Yatai Road,Jiaxing 314033,China [3]Qiantang Science and Technology Innovation Center,Institute of Wearable Technology and Bioelectronics,100223Rd Street,Hangzhou 310018,China

出　　处：《Advanced Fiber Materials》2024年第2期354-366,共13页先进纤维材料（英文）

基　　金：supported by the Key Research and Development Program of Zhejiang Province under Grant nos.2021C05005 and 2021C05007-2;the National Natural Science Foundation of China under Grant no.52121002.

摘　　要：Application of liquid metals and electrospun nanofibers offer a promising solution to insufficient resilience and human com-fort of wearable electronics.However,a sustainable manufacturing process is hindered by the low surface tension of liquid metal,and it's poor attachment to the surface of the fabric.This research reveals that tuning the pressure can control the adhesion of semiliquid metal(SLM)on substrates with varying roughness to achieve selective adhesion.Furthermore,a simple and rapid(30 s)fabrication method based on selective adhesion and low mobility of SLM is presented for preparing a multilayered monitoring device capable of measuring human body temperature and ECG signals for 24 h.This device exhibits excellent air permeability of 311.1 g·m^(-2)·h^(-1),water resistance(washing for 120 min).Our novel approach can inspire the development of methods for printing liquid metal circuits on roughness substrates and enable the practical use of waterproof and breathable wearable electronic devices in the future.

关 键 词：Wearable electronics Liquid metal Air permeability Water resistance Multilayer circuits 

分 类 号：TB383[一般工业技术—材料科学与工程]