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Coaxial Thermoplastic Elastomer‐Wrapped Carbon Nanotube Fibers for Deformable and Wearable Strain Sensors
Author(s) -
Zhou Jian,
Xu Xuezhu,
Xin Yangyang,
Lubineau Gilles
Publication year - 2018
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.201705591
Subject(s) - materials science , coaxial , gauge factor , composite material , elastomer , carbon nanotube , spinning , wearable technology , thermoplastic , electrical conductor , strain gauge , thermoplastic polyurethane , linearity , wearable computer , mechanical engineering , fabrication , electrical engineering , computer science , medicine , engineering , embedded system , alternative medicine , pathology
Highly conductive and stretchable fibers are crucial components of wearable electronics systems. Excellent electrical conductivity, stretchability, and wearability are required from such fibers. Existing technologies still display limited performances in these design requirements. Here, achieving highly stretchable and sensitive strain sensors by using a coaxial structure, prepared via coaxial wet spinning of thermoplastic elastomer‐wrapped carbon nanotube fibers, is proposed. The sensors attain high sensitivity (with a gauge factor of 425 at 100% strain), high stretchability, and high linearity. They are also reproducible and durable. Their use as safe sensing components on deformable cable, expandable surfaces, and wearable textiles is demonstrated.