Homogeneous wet-spinning construction of skin-core structured PANI/cellulose conductive fibers for gas sensing and e-textile applications

Chuang Wang; Yiqi Liao; Hou-Yong Yu; Yanjuan Dong; Juming Yao

doi:10.1016/j.carbpol.2023.121175

Homogeneous wet-spinning construction of skin-core structured PANI/cellulose conductive fibers for gas sensing and e-textile applications

Carbohydr Polym. 2023 Nov 1:319:121175. doi: 10.1016/j.carbpol.2023.121175. Epub 2023 Jul 6.

Authors

Chuang Wang¹, Yiqi Liao¹, Hou-Yong Yu², Yanjuan Dong¹, Juming Yao³

Affiliations

¹ Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
² Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China. Electronic address: phdyu@zstu.edu.cn.
³ School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China. Electronic address: yaoj@zstu.edu.cn.

PMID: 37567715
DOI: 10.1016/j.carbpol.2023.121175

Abstract

Fiber-based wearable electronic textiles have broad applications, but non-degradable substrates may contribute to electronic waste. The application of cellulose-based composite fibers as e-textiles is hindered by the lack of fast and effective preparation methods. Here, we fabricated polyaniline (PANI)/cellulose fibers (PC) with a unique skin-core structure through a wet-spinning homogeneous blended system. The conductive network formation was enabled at a mere 1 wt% PANI. Notably, PC15 (15 wt% PANI) shows higher electrical conductivity of 21.50 mS cm^-1. Further, PC15 exhibits excellent ammonia sensing performance with a sensitivity of 2.49 %/ppm and a low limit of detection (LOD) of 0.6 ppm. Cellulose-based composite fibers in this work demonstrate good gas sensing and anti-static properties as potential devices for smart e-textiles.

Keywords: Composite fibers; E-textiles; Gas sensing; Polyaniline; Regenerated cellulose fiber.