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Wettability investigation of UV/oand acid functionalized MWCNT and MWCNT/PMMA nanocomposites by contact angle measurement

Kim, Seil, Kafi, Aabdullah A., Bafekpour, Ehsan, Lee, Young-In, Fox, Bronwyn, Hussain, Manwar and Choa, Yong-Ho 2015, Wettability investigation of UV/oand acid functionalized MWCNT and MWCNT/PMMA nanocomposites by contact angle measurement, Journal of nanomaterials, vol. 2015, 130270, pp. 1-13, doi: 10.1155/2015/130270.

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Title Wettability investigation of UV/oand acid functionalized MWCNT and MWCNT/PMMA nanocomposites by contact angle measurement
Author(s) Kim, Seil
Kafi, Aabdullah A.
Bafekpour, Ehsan
Lee, Young-In
Fox, Bronwyn
Hussain, Manwar
Choa, Yong-Ho
Journal name Journal of nanomaterials
Volume number 2015
Season 130270
Start page 1
End page 13
Total pages 13
Publisher Hindawi Publishing Corporation
Place of publication New York, N.Y.
Publication date 2015-01-06
ISSN 1687-4110
1687-4129
Keyword(s) Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
SITU BULK-POLYMERIZATION
WALLED CARBON NANOTUBES
INTERFACIAL TENSIONS
DISPERSION FORCES
COMPOSITES
SURFACE
PMMA
ADDITIVITY
BLACK
FILMS
Summary The dispersion state of individual MWCNT in the polymer matrix influences the mechanical, thermal, and electrical properties of the resulting composite. One method of obtaining a good dispersion state of MWCNT in a polymer matrix is to functionalize the surface of MWCNT using various treatments to enhance the surface energy and increase the dispersibility of MWCNT. In this study, wettability and surface energy of UV/Oand acid-treated multiwall carbon nanotubes (MWCNTs) and its polymethyl methacrylate (PMMA) polymer nanocomposites were measured using contact angle analysis in various solvent media. Contact angle analysis was based on ethylene glycol-water-glycerol probe liquid set and data was further fitted into geometric mean (Fowkes), van Oss-Chaudhury-Good (GvOC), and Chang-Qing-Chen (CQC) models to determine both nonpolar and acid base surface energy components. Analysis was conducted on MWCNT thin films subjected to different levels of UV/Oand acid treatments as well as their resulting MWCNT/PMMA nanocomposites. Contact angle analysis of thin films and nanocomposites revealed that the total surface energy of all samples was well fitted with each other. In addition, CQC model was able to determine the surface nature and polarity of MWCNT and its nanocomposites. Results indicated that the wettability changes in the thin film and its nanocomposites are due to the change in surface chemistry. Finally, electrical properties of nanocomposites were measured to investigate the effect of surface functionality (acid or basic) on the MWCNT surfaces.
Language eng
DOI 10.1155/2015/130270
Field of Research 030301 Chemical Characterisation of Materials
030302 Nanochemistry and Supramolecular Chemistry
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, Hindawi Publishing Corporation
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069881

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.