Multifunctional carbon nanotube yarns by downsizing an ancient technology

被引:1396
作者
Zhang, M
Atkinson, KR
Baughman, RH [1 ]
机构
[1] Univ Texas, NanoTech Inst, Richardson, TX 75083 USA
[2] Univ Texas, Dept Chem, Richardson, TX 75083 USA
[3] CSIRO Text & Fibre Technol, Belmont, Vic 3216, Australia
关键词
D O I
10.1126/science.1104276
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
By introducing twist during spinning of multiwalled carbon nanotubes from nanotube forests to make multi-ply, torque-stabilized yarns, we achieve yarn strengths greater than 460 megapascals. These yarns deform hysteretically over large strain ranges, reversibly providing up to 48% energy damping, and are nearly as tough as fibers used for bulletproof vests. Unlike ordinary fibers and yarns, these nanotube yarns are not degraded in strength by overhand knotting. They also retain their strength and flexibility after heating in air at 450degreesC for an hour or when immersed in liquid nitrogen. High creep resistance and high electrical conductivity are observed and are retained after polymer infiltration, which substantially increases yarn strength.
引用
收藏
页码:1358 / 1361
页数:4
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