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Knittable and Washable Multifunctional MXene‐Coated Cellulose Yarns
Author(s) -
Uzun Simge,
Seyedin Shayan,
Stoltzfus Amy L.,
Levitt Ariana S.,
Alhabeb Mohamed,
Anayee Mark,
Strobel Christina J.,
Razal Joselito M.,
Dion Genevieve,
Gogotsi Yury
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201905015
Subject(s) - materials science , textile , capacitive sensing , composite material , yarn , electrical conductor , electronics , electrode , coating , capacitance , gauge factor , fabrication , electrical engineering , chemistry , engineering , medicine , alternative medicine , pathology
Textile‐based electronics enable the next generation of wearable devices, which have the potential to transform the architecture of consumer electronics. Highly conductive yarns that can be manufactured using industrial‐scale processing and be washed like everyday yarns are needed to fulfill the promise and rapid growth of the smart textile industry. By coating cellulose yarns with Ti 3 C 2 T x MXene, highly conductive and electroactive yarns are produced, which can be knitted into textiles using an industrial knitting machine. It is shown that yarns with MXene loading of ≈77 wt% (≈2.2 mg cm −1 ) have conductivity of up to 440 S cm −1 . After washing for 45 cycles at temperatures ranging from 30 to 80 °C, MXene‐coated cotton yarns exhibit a minimal increase in resistance while maintaining constant MXene loading. The MXene‐coated cotton yarn electrode offers a specific capacitance of 759.5 mF cm −1 at 2 mV s −1 . A fully knitted textile‐based capacitive pressure sensor is also prepared, which offers high sensitivity (gauge factor of ≈6.02), wide sensing range of up to ≈20% compression, and excellent cycling stability (2000 cycles at ≈14% compression strain). This work provides new and practical insights toward the development of platform technology that can integrate MXene in cellulose‐based yarns for textile‐based devices.