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Understanding wettability changes from practical plasma functionalization of carbon nanotubes

Kafi, Abdullah A., Chen, Zhiqiang, Dai, Xiujuan J., Fox, Bronwyn L., Lamb, Peter R. and Wang, Xungai 2012, Understanding wettability changes from practical plasma functionalization of carbon nanotubes, Nanoscience and nanotechnology letters, vol. 4, no. 3, pp. 344-347.

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Title Understanding wettability changes from practical plasma functionalization of carbon nanotubes
Author(s) Kafi, Abdullah A.
Chen, Zhiqiang
Dai, Xiujuan J.
Fox, Bronwyn L.
Lamb, Peter R.
Wang, Xungai
Journal name Nanoscience and nanotechnology letters
Volume number 4
Issue number 3
Start page 344
End page 347
Total pages 4
Publisher American Scientific Publishers
Place of publication Stevenson Ranch, Calif.
Publication date 2012
ISSN 1941-4900
1941-4919
Keyword(s) carbon nanotube
plasma functionalization
primary amine
wettability
Summary Combining continuous wave and pulsed plasma modes enables strong interfacial bonding of high levels of desired surface functional groups. The method has been applied to a thin film of multiwalled carbon nanotubes, a nanostructured and relatively inert material, using N2 + H2 plasma. A high density of primary amine groups (~2.6%) was achieved without damaging the tube surface. Contact angle measurements, using different probe liquids, plus model calculations of surface energy agree well with the spectroscopy and electron microscope results, i.e., the polar part shows significant changes while the non-polar part was unchanged. These results indicate that the wettability changes in the thin film of carbon nanotubes by the plasma treatment are due to the changes in surface chemistry. This confirms the effectiveness and practicality of the improved plasma method that should greatly help the use of nanotubes in applications from biomaterials to nanocomposites.
Language eng
Field of Research 030301 Chemical Characterisation of Materials
030302 Nanochemistry and Supramolecular Chemistry
100708 Nanomaterials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, American Scientific Publishers
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047097

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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