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US 10,246,333 B1Granted
Method for continuous manufacture of cntf having high strength and high conductivity
AssigneeKorea Institute of Science and Technology
InventorsSeung Min Kim, Hyeon Su Jeong, Jae Geun Lee, Dong Myeong Lee, Hun Su Lee, Young Kwan Kim, Jun Beom Park
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Abstract
Provided is a method for continuously manufacturing carbon nanotube fibers with high strength and high conductivity, which includes synthesizing carbon nanotube fibers by direct spinning; treating the carbon nanotube fibers with a strong acid while applying tension thereto; and washing the carbon nanotube fibers treated with the strong acid.
Claims7
A method for continuously manufacturing carbon nanotube fibers with high strength and high conductivity, comprising:
- synthesizing carbon nanotube fibers by direct spinning;
- treating the carbon nanotube fibers with a strong acid while applying tension thereto;
- and
- washing the carbon nanotube fibers thereafter,
- wherein the carbon nanotube fibers have an IG/ID ratio of 10 or greater and the tension is applied so as to stretch the carbon nanotube fibers by 4% to 15%.
2 more elements
Dependencies are inferred from the claim text.