TY - JOUR
T1 - Polyurethane/Cotton/Carbon Nanotubes Core-Spun Yarn as High Reliability Stretchable Strain Sensor for Human Motion Detection
AU - Wang, Zifeng
AU - Huang, Yan
AU - Sun, Jinfeng
AU - Huang, Yang
AU - Hu, Hong
AU - Jiang, Ruijuan
AU - Gai, Weiming
AU - Li, Guangming
AU - Zhi, Chunyi
PY - 2016/9/21
Y1 - 2016/9/21
N2 - Smart yarns and textiles are an active field of researches nowadays due to their potential applications in flexible and stretchable electronics, wearable devices, and electronic sensors. Integration of ordinary yarns with conductive fillers renders the composite yarns with new intriguing functions, such as sensation and monitoring of strain and stress. Here we report a low cost scalable fabrication for highly reliable, stretchable, and conductive composite yarn as effective strain sensing material for human motion monitoring. By incorporating highly conductive single-wall carbon nanotubes (SWCNTs) into the elastic cotton/polyurethane (PU) core-spun yarn through a self-designed coating approach, we demonstrated that the yarn is able to detect and monitor the movement of human limbs, such as finger and elbow, and even the wink of eyes. By virtue of the covered structure of the cotton/PU yarn and the reinforcement effect of SWCNTs, the composite yarn can bear up to 300% strain and could be cycled nearly 300,000 times under 40% strain without noticeable breakage. It is promising that this kind of conductive yarn can be integrated into various fabrics and used in future wearable devices and electronic skins.
AB - Smart yarns and textiles are an active field of researches nowadays due to their potential applications in flexible and stretchable electronics, wearable devices, and electronic sensors. Integration of ordinary yarns with conductive fillers renders the composite yarns with new intriguing functions, such as sensation and monitoring of strain and stress. Here we report a low cost scalable fabrication for highly reliable, stretchable, and conductive composite yarn as effective strain sensing material for human motion monitoring. By incorporating highly conductive single-wall carbon nanotubes (SWCNTs) into the elastic cotton/polyurethane (PU) core-spun yarn through a self-designed coating approach, we demonstrated that the yarn is able to detect and monitor the movement of human limbs, such as finger and elbow, and even the wink of eyes. By virtue of the covered structure of the cotton/PU yarn and the reinforcement effect of SWCNTs, the composite yarn can bear up to 300% strain and could be cycled nearly 300,000 times under 40% strain without noticeable breakage. It is promising that this kind of conductive yarn can be integrated into various fabrics and used in future wearable devices and electronic skins.
KW - conductive yarn
KW - core-spun yarn
KW - single-wall carbon nanotube
KW - stretchable strain sensor
KW - wearable devices
UR - http://www.scopus.com/inward/record.url?scp=84988672850&partnerID=8YFLogxK
U2 - 10.1021/acsami.6b08207
DO - 10.1021/acsami.6b08207
M3 - Journal article
SN - 1944-8244
VL - 8
SP - 24837
EP - 24843
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
IS - 37
ER -