文献类型：期刊文献

英文题名：Fabrication of pressure visual fiber based on liquid metal control thermochromic pigments

作者：Wang, Huabing[1];Yue, Xinyan[2];Shen, Xiuyu[3,4];Wang, Xianlin[1];Zheng, Riquan[1];Han, Qinghe[1];Li, Xiaoqiang[1];Jin, Yang[1]

机构：[1]Jiangnan Univ, Coll Text Sci & Engn, Wuxi 214122, Peoples R China;[2]Shaoxing Univ, Shaoxing, Zhejiang, Peoples R China;[3]Shaoxing Univ, Shaoxing Key Lab High Performance Fibers & Prod, Shaoxing, Peoples R China;[4]Shaoxing Univ, Natl Carbon Fiber Engn Technol Res Ctr, Zhejiang Sub Ctr, Shaoxing, Peoples R China

年份：2024

外文期刊名：POLYMER COMPOSITES

收录：SCI-EXPANDED(收录号：WOS:001244268600001)、、EI(收录号：20242416252661)、Scopus(收录号：2-s2.0-85195659304)、WOS

基金：National Natural Science Foundation of China (52103140); The Fundamental Research Funds for the Central Universities (JUSRP122001, JUSRP622036).

语种：英文

外文关键词：composite; core-shell structure; liquid metal; luminescent materials; thermochromic pigment

外文摘要：In this study, pressure visual fibers (PVF) with a core-shell structure were prepared using a coaxial wet spinning process. The fiber composite shell consists of a luminescent material (as a light source) and a thermochromic pigment (as a filter light source) mixed with a polyacrylonitrile (PAN) matrix. The fiber core layer, on the other hand, was made of gallium-indium alloy liquid metal. In operation, the filter light source is activated by joule heat drive (resulting in the fading of the thermochromic pigment), and the PVF releases phosphorescence upon exposure to ultraviolet light. When a certain pressure is applied to the fiber shell, the liquid metal in the core layer is squeezed, resulting in a local cross-sectional area reduction, an increase in local joule thermal power, and thus local discoloration. This localized compression, in combination with a small rated current and the presence of an ultraviolet light source, converts the mechanical force (strain and compression) into an optical response. The excellent electrical conductivity of the liquid metal, combined with its compatibility with the soft matrix, makes it a promising candidate for applications in smart textiles and flexible sensing. Highlights center dot The technology of visual fiber controlled by current is presented. center dot The bendability and controllability of visual composites are improved. center dot The composite fiber can be visualized when stressed.