Wearable Safeguarding Leather Composite with Excellent Sensing, Thermal Management, and Electromagnetic Interference Shielding

Ziyang Fan, Liang Lu, Min Sang*, Jianpeng Wu, Xinyi Wang, Feng Xu, Xinglong Gong*, Tianzhi Luo, Ken Cham-Fai Leung, Shouhu Xuan*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

17 Citations (Scopus)

Abstract

This work illustrates a “soft-toughness” coupling design method to integrate the shear stiffening gel (SSG), natural leather, and nonwoven fabrics (NWF) for preparing leather/MXene/SSG/NWF (LMSN) composite with high anti-impact protecting, piezoresistive sensing, electromagnetic interference (EMI) shielding, and human thermal management performance. Owing to the porous fiber structure of the leather, the MXene nanosheets can penetrate leather to construct a stable 3D conductive network; thus both the LM and LMSN composites exhibit superior conductivity, high Joule heating temperature, and an efficient EMI shielding effectiveness. Due to the excellent energy absorption of the SSG, the LMSN composites possess a huge force-buffering (about 65.5%), superior energy dissipation (above 50%), and a high limit penetration velocity of 91 m s−1, showing extraordinary anti-impact performance. Interestingly, LMSN composites possess an unconventional opposite sensing behavior to piezoresistive sensing (resistance reduction) and impact stimulation (resistance growing), thus they can distinguish the low and high energy stimulus. Ultimately, a soft protective vest with thermal management and impact monitoring performance is further fabricated, and it shows a typical wireless impact-sensing performance. This method is expected to have broad application potential in the next-generation wearable electronic devices for human safeguarding.
Original languageEnglish
Article number2302412
Number of pages14
JournalAdvanced Science
Volume10
Issue number26
Early online date9 Jul 2023
DOIs
Publication statusPublished - 15 Sept 2023

Scopus Subject Areas

  • Engineering(all)
  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Medicine (miscellaneous)

User-Defined Keywords

  • anti-impact
  • EMI shielding
  • piezoresistive sensing
  • shear stiffening
  • smart electronic devices
  • thermal management

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