Functionalization of carbon nanotubes by corona-discharge induced graft polymerization for the reinforcement of epoxy nanocomposites

Xu, Lihua and Fang, Zhengping and Song, Pingan and Peng, Mao (2010) Functionalization of carbon nanotubes by corona-discharge induced graft polymerization for the reinforcement of epoxy nanocomposites. Plasma Processes and Polymers, 7 (9). pp. 785-793. ISSN 1612-8850

Abstract

Corona discharge treatment at atmospheric pressure was applied to initiate the graft polymerization of 2-hydroxyethyl methacrylate onto the surface of multi-walled carbon nanotubes (MWCNTs). The results indicated that MWCNTs were encapsulated by poly(2-hydroxyethyl methacrylate) (PHEMA). The blue shift and the increased ID/IG value of the Raman spectra confirmed the covalent attachment of PHEMA onto the surface of the MWCNTs. The grafting degree depended on the processing time of corona discharge, as demonstrated by thermogravimetric analysis. The dispersibility of the PHEMA grafted MWCNTs (PHEMA-g-CNTs) in ethanol was dramatically improved. It was also found that PHEMA-g-CNTs can improve the dynamic mechanical and mechanical properties of the nanocomposites more effectively than the pristine MWCNTs. A novel method for grafting polymers onto multi-walled carbon nanotubes (MWCNTs) is reported. After being treated by corona discharge at atmospheric pressure, MWCNTs can initiate the surface grafting polymerization of 2-hydroxyethyl methacrylate. The grafted MWCNTs present more uniform dispersion in epoxy matrix and stronger effect on the dynamic mechanical and mechanical properties of MWCNTs/epoxy nanocomposites than the pristine MWCNTs.


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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
Date Deposited: 08 Aug 2019 03:13
Last Modified: 09 Aug 2019 05:14
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8699 Other Manufacturing > 869999 Manufacturing not elsewhere classified
Identification Number or DOI: 10.1002/ppap.201000019
URI: http://eprints.usq.edu.au/id/eprint/35577

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