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Strong, Twist‐Stable Carbon Nanotube Yarns and Muscles by Tension Annealing at Extreme Temperatures
Author(s) -
Di Jiangtao,
Fang Shaoli,
Moura Francisco A.,
Galvão Douglas S.,
Bykova Julia,
Aliev Ali,
de Andrade Mônica Jung,
Lepró Xavier,
Li Na,
Haines Carter,
OvalleRobles Raquel,
Qian Dong,
Baughman Ray H.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201600628
Subject(s) - materials science , carbon nanotube , weaving , composite material , annealing (glass) , twist , yarn , modulus , nanotube , torsion (gastropod) , tension (geology) , ultimate tensile strength , medicine , geometry , mathematics , surgery
A high‐speed incandescent tension annealing process (ITAP) is used to increase the modulus and strength of twist‐spun carbon nanotube yarns by up to 12‐fold and 2.6‐fold, respectively, provide remarkable resistance to oxidation and powerful protonating acids, and freeze yarn untwist. This twist stability enables torsional artificial‐muscle motors having improved performance and minimizes problematic untwist during weaving nanotube yarns.