Universiti Teknologi Malaysia Institutional Repository

Surfactant dispersed multi-walled carbon nanotube/ polyetherimide nanocomposite membrane

Goh, Pei Sean and Ng, Be Cheer and Ismail, Ahmad Fauzi and Aziz, Madzlan and Sanip, Suhaila (2010) Surfactant dispersed multi-walled carbon nanotube/ polyetherimide nanocomposite membrane. Solid State Sciences, 12 (12). 2155 -2162. ISSN 1293-2558

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Official URL: http://dx.doi.org/10.1016/j.solidstatesciences.201...


Carbon nanotube based nanocomposite membranes have been fabricated through solution casting by embedding multi-walled carbon nanotubes (MWCNTs) within polyetherimide (PEI) polymer host matrix. In order to achieve fine dispersion of nanotubes and facilitate strong interfacial adhesion with the polymer matrix, the nanotubes were first treated with surfactants of different charges, namely anionic sodium dodecyl chloride, cationic cetyl trimethyl ammonium chloride and non-ionic Triton X100, prior to the dispersion in the PEI dope solution. Dispersion of MWCNTs in N-methyl-2-pyrrolidone solvent showed that the agglomeration and entanglement of the nanotubes were greatly reduced upon the addition of Triton X100. Scanning electron microscopy and atomic force microscopy examination has evidenced the compatibility of Triton X100 dispersed MWCNTs with the polymer matrix in which a promising dispersion and adhesion has been observed at the MWCNT-PEI interface. The increase in both thermal stability and mechanical strength of the resulting Triton X100 dispersed MWCNT/PEI nanocomposite indicated the improved interaction between MWCNTs and PEI. This study demonstrated the role of Triton X100 in facilitating the synergetic effects of MWCNTs and PEI where the resulting composite membrane is anticipated to have potential application in membrane based gas separation.

Item Type:Article
Uncontrolled Keywords:Carbon nanotubes, Polymer matrix composite, Surface treatments
Subjects:Q Science > QD Chemistry
Divisions:Petroleum and Renewable Energy Engineering
ID Code:26622
Deposited By: Widya Wahid
Deposited On:18 Jul 2012 11:37
Last Modified:09 Nov 2018 16:09

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