Effect of oxygen plasma treatment on the mechanical properties of carbon nanotube fibers

Title
Effect of oxygen plasma treatment on the mechanical properties of carbon nanotube fibers
Authors
박옥경김우영김승민유남호정영진이헌수구본철
Keywords
Carbon nanotube fibers; Mechanical properties; Plasma treatment; Hydrogenbonding
Issue Date
2015-10
Publisher
Materials letters
Citation
VOL 156, 17-20
Abstract
The effect of atmospheric-pressure plasma treatment on the mechanical properties of carbon nanotube (CNT) fibers was investigated. When the CNT fibers were irradiated with RF atmospheric-pressure plasma, it was confirmed that functional groups such as hydroxyl or carboxylic acid groups were generated on the surface of the CNT fibers. The mechanical properties of CNT fibers were improved as a result of the plasma treatment because the functional groups on individual CNTs were able to induce hydrogen bonds between them. After plasma treatment with gas flow of argon (10 lpm) and oxygen (100 sccm), the tensile strength of the pure CNT fiber increased by approximately 40%, from 0.62 N/tex to 0.86 N/tex, and the modulus increased by approximately 20%, from 27.9 N/tex to 32.9 N/tex.
URI
http://pubs.kist.re.kr/handle/201004/49707
ISSN
0167577X
Appears in Collections:
KIST Publication > Article
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