Journal
COMPOSITE STRUCTURES
Volume 125, Issue -, Pages 170-175Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2015.02.023
Keywords
Carbon nanotubes; Rheology; Nanocomposite; Viscoelastic property; PMMA
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Funding
- National Research Foundation, Korea [NRF-2011-0006592]
- National Research Foundation of Korea [22A20130012832] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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To enhance the dispersion and load transfer of multi-walled carbon nanotube (MWNT) in a poly(methyl methacrylate) (PMMA) matrix, amino-functionalized-MWNT (MWNT-NH2) was applied to the fabrication of MWNT-NH2/PMMA nanocomposites. Functionalization through a series of chemical modifications using thionyl chloride and hexamethylene diamine was adopted. The MWNT-NH2 was then reacted with PMMA through the aid of amino groups to form MWNT-NH2/PMMA nanocomposites. The MWNT-NH2 attached covalently to PMMA was confirmed by both scanning electron microscope and transmission electron microscope. The effects of the MWNT-NH2 content on the rheological properties were examined using both steady shear and oscillatory rheological measurements. The viscoelastic properties became more solid-like as the MWNT-NH2 content was increased. The Cole Cole plot of the dynamic moduli indicated a good dispersion of MWNT in the polymer matrix using the functionalized MWNT. (C) 2015 Elsevier Ltd. All rights reserved.
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