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The effects of surface modifications of multiwalled carbon nanotubes on their dispersibility in different solvents and poly(ether ether ketone)

Published online by Cambridge University Press:  14 October 2014

Zongshuang Cao ,
Li Qiu ,
Yongzhen Yang ,
Yongkang Chen  and
Xuguang Liu
Zongshuang Cao
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Research Center of Advanced Material Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
Li Qiu
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yongzhen Yang*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Research Center of Advanced Material Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
Yongkang Chen*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China; and University of Hertfordshire, School of Engineering and Technology, Hatfield, Hertfordshire AL10 9AB, UK
Xuguang Liu
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
*
a) Address all correspondence to these authors. e-mail: yyztyut@126.com
b) e-mail: y.k.chen@herts.ac.uk
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Abstract

The effects of surface modifications of multiwalled carbon nanotubes (MWCNTs) on their dispersibility in different solvents and poly(ether ether ketone) (PEEK) have been studied. MWCNTs were treated by mixed acids to obtain acid-functionalized MWCNTs. The acid-functionalized MWCNTs were modified with five different chemical agents separately, 1,6-diaminohexane, hexadecyltrimethyl ammonium bromide, silane coupling agent 3-aminopropyltriethoxysilane, anhydrous sulfanilic acid, and ethanolamine. Multiwalled carbon nanotube and PEEK (MWCNT/PEEK) composite films were fabricated to explore systematically the dispersibility of differently modified MWCNTs in PEEK as well as in different solvents. The morphology and structures of MWCNTs and the compatibility between MWCNTs and PEEK have been investigated. It was observed that the MWCNTs modified with anhydrous sulfanilic acid have an excellent dispersion in the PEEK grafted by sulfonic acid groups and that the MWCNTs modified with ethanolamine are also dispersed well in pure PEEK. The results herein provide useful insights into the development of MWCNT/PEEK composites for a wide variety of applications.

Keywords

surface chemistrypolymercomposite

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Type
Articles
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Journal of Materials Research , Volume 29 , Issue 22 , 28 November 2014 , pp. 2625 - 2633
Copyright
Copyright © Materials Research Society 2014 

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