TY - JOUR
T1 - Design of a wearable and shape-memory fibriform sensor for the detection of multimodal deformation
AU - Li, Li
AU - Shi, Peipei
AU - Hua, Li
AU - An, Jianing
AU - Gong, Yujiao
AU - Chen, Ruyi
AU - Yu, Chenyang
AU - Hua, Weiwei
AU - Xiu, Fei
AU - Zhou, Jinyuan
AU - Gao, Guangfa
AU - Jin, Zhong
AU - Sun, Gengzhi
AU - Huang, Wei
N1 - Publisher Copyright:
© 2017 The Royal Society of Chemistry.
PY - 2018/1/7
Y1 - 2018/1/7
N2 - A wearable and shape-memory strain sensor with a coaxial configuration is designed, comprising a thermoplastic polyurethane fiber as the core support, well-aligned and interconnected carbon nanotubes (CNTs) as conductive filaments, and polypyrrole (PPy) coating as the cladding layer. In this design, the stress relaxation between CNTs is well confined by the outer PPy cladding layer, which endows the fibriform sensor with good reliability and repeatability. The microcracks generated when the coaxial fiber is under strain guarantee the superior sensitivity of this fibriform sensor with a gauge factor of 12 at 0.1% strain, a wide detectable range (from 0.1% to 50% tensile strain), and the ability to detect multimodal deformation (tension, bending, and torsion) and human motions (finger bending, breathing, and phonation). In addition, due to its shape-memory characteristic, the sensing performance of the fibriform sensor is well retained after its shape recovers from 50% deformation and the fabric woven from the shape-memory coaxial fibers can be worn on the elbow joints in a reversible manner (original-enlarged-recovered) and fitted tightly. Thus, this sensor shows promising applications in wearable electronics.
AB - A wearable and shape-memory strain sensor with a coaxial configuration is designed, comprising a thermoplastic polyurethane fiber as the core support, well-aligned and interconnected carbon nanotubes (CNTs) as conductive filaments, and polypyrrole (PPy) coating as the cladding layer. In this design, the stress relaxation between CNTs is well confined by the outer PPy cladding layer, which endows the fibriform sensor with good reliability and repeatability. The microcracks generated when the coaxial fiber is under strain guarantee the superior sensitivity of this fibriform sensor with a gauge factor of 12 at 0.1% strain, a wide detectable range (from 0.1% to 50% tensile strain), and the ability to detect multimodal deformation (tension, bending, and torsion) and human motions (finger bending, breathing, and phonation). In addition, due to its shape-memory characteristic, the sensing performance of the fibriform sensor is well retained after its shape recovers from 50% deformation and the fabric woven from the shape-memory coaxial fibers can be worn on the elbow joints in a reversible manner (original-enlarged-recovered) and fitted tightly. Thus, this sensor shows promising applications in wearable electronics.
UR - http://www.scopus.com/inward/record.url?scp=85039154200&partnerID=8YFLogxK
U2 - 10.1039/c7nr06219b
DO - 10.1039/c7nr06219b
M3 - 文章
C2 - 29211073
AN - SCOPUS:85039154200
SN - 2040-3364
VL - 10
SP - 118
EP - 123
JO - Nanoscale
JF - Nanoscale
IS - 1
ER -