Renqiao Wang , Liping Xie , Zelin Zhang , Hongbin Sun , Yiming Xiao
{"title":"Mussel-inspired wet-spun conductive fibers for stretchable electronics","authors":"Renqiao Wang , Liping Xie , Zelin Zhang , Hongbin Sun , Yiming Xiao","doi":"10.1016/j.coco.2024.102171","DOIUrl":null,"url":null,"abstract":"<div><div>Flexible conductive fibers have gained significant attention for their exciting potential in stretchable electronics, attributed to their thread-like structure, lightweight, and flexibility. However, it is still challenging to prepare adjustable conductive fibers that boast outstanding electronic characteristics using an eco-friendly and simple method. Inspired by mussel byssus threads, a new strategy for the preparation of conductive fiber was proposed by combining the wet-spun polyurethane (PU) fiber and liquid metal (LM) using tannic acid (TA) as a binder. The inherent adhesive property of TA with rich catechol/gallocatechol groups enables it as a binder to enhance the affinity of PU fiber to LM. The fiber (LM@TA-PU fiber, LTP) composed of TA-modified PU as a core and an EGaIn conductive layer exhibited a high electrical conductivity (3.522 × 10<sup>5</sup> S m<sup>−1</sup>) and a large tensile range (0–640 %). The fiber displayed a fast response time (63 ms), notable durability (over 5000 cycles), and very tiny detection of strain (0.1 %). Moreover, the LTP fibers were employed as flexible sensors and electrodes for the acquisition of signals. Based on the LTP fiber, wireless Bluetooth, and programming technology, intelligent applications displayed in a cell phone were implemented for gesture recognition and music playback control. This work offers a novel method to prepare flexible conductive fibers, opening up new possibilities for applications in motion monitoring, gesture recognition, and the Internet of Things.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102171"},"PeriodicalIF":6.5000,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452213924003620","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
Flexible conductive fibers have gained significant attention for their exciting potential in stretchable electronics, attributed to their thread-like structure, lightweight, and flexibility. However, it is still challenging to prepare adjustable conductive fibers that boast outstanding electronic characteristics using an eco-friendly and simple method. Inspired by mussel byssus threads, a new strategy for the preparation of conductive fiber was proposed by combining the wet-spun polyurethane (PU) fiber and liquid metal (LM) using tannic acid (TA) as a binder. The inherent adhesive property of TA with rich catechol/gallocatechol groups enables it as a binder to enhance the affinity of PU fiber to LM. The fiber (LM@TA-PU fiber, LTP) composed of TA-modified PU as a core and an EGaIn conductive layer exhibited a high electrical conductivity (3.522 × 105 S m−1) and a large tensile range (0–640 %). The fiber displayed a fast response time (63 ms), notable durability (over 5000 cycles), and very tiny detection of strain (0.1 %). Moreover, the LTP fibers were employed as flexible sensors and electrodes for the acquisition of signals. Based on the LTP fiber, wireless Bluetooth, and programming technology, intelligent applications displayed in a cell phone were implemented for gesture recognition and music playback control. This work offers a novel method to prepare flexible conductive fibers, opening up new possibilities for applications in motion monitoring, gesture recognition, and the Internet of Things.
期刊介绍:
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.