Mokhtar Awang and Wei-Vern Hor and Ehsan Mohammadpour and M Zaki Abdullah and Faiz Ahmad
Functionalization and Characterization of Carbon Nanotubes Polypropylene Nanocomposite
871 - 875
2011
5
10
International Journal of Materials and Metallurgical Engineering
https://publications.waset.org/pdf/8632
https://publications.waset.org/vol/58
World Academy of Science, Engineering and Technology
Chemical and physical functionalization of multiwalled
carbon nanotubes (MWCNT) has been commonly practiced to
achieve better dispersion of carbon nanotubes (CNTs) in polymer
matrix. This work describes various functionalization methods (acidtreatment,
nonionic surfactant treatment with TritonX100),
fabrication of MWCNTPP nanocomposites via melt blending and
characterization of mechanical properties. Microscopy analysis
(FESEM, TEM, XPS) showed effective purification of MWCNTs
under acid treatment, and better dispersion under both chemical and
physical functionalization techniques combined, in their respective
order. Tensile tests showed increase in tensile strength for the
nanocomposites that contain MWCNTs up to 2 wt. A decrease in
tensile strength was seen in samples that contain 4 wt of MWCNTs
for both raw and Triton X100 functionalized, signifying MWCNT
degradationrebundling at composition with higher content of
MWCNTs. For the acidtreated MWCNTs, however, the tensile
results showed slight improvement even at 4wt, indicating effective
dispersion of MWCNTs.
Open Science Index 58, 2011