| Title | Elastic carbon nanotube straight yarns embedded with helical loops |
| Authors | Shang, Yuanyuan Li, Yibin He, Xiaodong Zhang, Luhui Li, Zhen Li, Peixu Shi, Enzheng Wu, Shiting Cao, Anyuan |
| Affiliation | Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150080, Peoples R China. Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China. Tsinghua Univ, Dept Mech Engn, Key Lab Adv Mat Proc Technol, Beijing 100084, Peoples R China. |
| Keywords | FIBERS NETWORKS SENSORS FILMS TRANSPARENT SINGLE |
| Issue Date | 2013 |
| Publisher | nanoscale |
| Citation | NANOSCALE.2013,5,(6),2403-2410. |
| Abstract | Introducing stretchability and elasticity into carbon nanotube (CNT) yarns could extend their applications to areas such as stretchable and deformable fiber-based devices and strain sensors. Here, we convert a straight and inelastic yarn into a highly elastic structure by spinning a predefined number of helical loops along the yarn, resulting in a short helical segment with smooth structural transition to the straight portions. The loop-forming process is well controlled, and the obtained straight-helical-straight hybrid yarn is freestanding, stable, and based entirely on CNTs. The elastic and conductive yarns can be stretched to moderate tensile strains (up to 25%) repeatedly for 1000 cycles without producing residual deformation, with a simultaneous and linear change of electrical resistance depending on the strain. Our results indicate that conventional straight CNT yarns could be used as fiber-shaped strain sensors by simple structural modification. |
| URI | http://hdl.handle.net/20.500.11897/154543 |
| ISSN | 2040-3364 |
| DOI | 10.1039/c3nr33633f |
| Indexed | SCI(E) EI |
| Appears in Collections: | 工学院 |
