Effects of corona discharge on the surface structure, morphology and properties of multi-walled carbon nanotubes

Xu, Lihua and Fang, Zhengping and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X and Peng, Mao (2010) Effects of corona discharge on the surface structure, morphology and properties of multi-walled carbon nanotubes. Applied Surface Science, 256 (21). pp. 6447-6453. ISSN 0169-4332


Multi-walled carbon nanotubes (MWCNTs) were modified by corona discharge and then heat treated in the air. The influences of corona discharge parameters such as treatment time and processing power were investigated. The results of energy dispersive X-ray analysis (EDX) and thermogravimetric analysis (TGA) indicated the introduction of oxygen-containing functional groups onto the surface of the MWCNTs after heat treatment. The water contact angle tests showed that the hydrophobicity of the MWCNTs was decreased to some extent. The static water contact angle was reduced from 146° to 122° when the time of the corona discharge treatment reached 3 min at the processing power of 200 W. The enhanced thermomechanical and mechanical properties of epoxy nanocomposites filled with the corona discharge treated MWCNTs were observed. The modified MWCNTs conferred better properties on the composites than the pristine MWCNTs because of the improved dispersion of MWCNTs in matrix and the enhanced interfacial interaction between the treated MWCNTs and epoxy.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 08 Aug 2019 01:54
Last Modified: 24 Nov 2021 00:34
Uncontrolled Keywords: multi-walled carbon nanotubes, corona discharge, heat treatment, hydrophobicity, epoxy
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401699 Materials engineering not elsewhere classified
Socio-Economic Objectives (2008): B Economic Development > 86 Manufacturing > 8699 Other Manufacturing > 869999 Manufacturing not elsewhere classified
Identification Number or DOI: https://doi.org/10.1016/j.apsusc.2010.04.033
URI: http://eprints.usq.edu.au/id/eprint/35579

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