聚吡咯
涂层
材料科学
纤维
导电聚合物
数码产品
纳米技术
复合材料
聚合物
电气工程
工程类
聚合
作者
Yimeng Li,Xiaoli Liu,Shasha Wang,Wenxin Li,Lu Wang,Linna Guo,Fujun Wang,Lu Wang,Jifu Mao
标识
DOI:10.1016/j.cej.2024.149888
摘要
Stretchable conductive fibers have shown considerable promise in the field of wearable healthcare electronics, but their widespread application has been impeded by the complexity of their manufacturing processes and their susceptibility to electrical failure under significant deformations. In response to this challenge, this study proposes an approach that harnesses dopamine to enhance the wettability of commercial polyurethane (PU) multifilaments. This enhancement facilitates the penetration of aqueous solutions into the core layer of the multifilaments, thereby enabling the polymerization of a striated polypyrrole (PPy) coating on the monofilament surface of the multifilament core layer. The resulting dopamine-induced composite fiber bundles (DCFBs), drawing inspiration from the structure of striated muscle fiber bundles, demonstrates insensitive conductivity at a high tensile strain of 600% and exceptional durability exceeding 40,000 cycles, as the bionic structure mitigates the effect of PPy coating cracks on overall conductivity. The bionic DCFBs holds potential for applications in stretchable electrical circuits, all-weather wearable thermal therapy devices, and pressure sensors for Moss Code communication and human state detection. This work presents a straightforward and versatile technique for producing highly stretchable fibers with multilayer conductive coatings featuring microstructures in the context of wearable healthcare electronics, utilizing commercial fibers as the primary material source.
科研通智能强力驱动
Strongly Powered by AbleSci AI