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The Synthesis and Investigation of SiO2—MgO Coated Multiwalled Carbon Nanotube/Polymer Composites

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Multiwalled carbon nanotubes were coated with talc-like oxides via impregnation method to facilitate their incorporation into polymer matrix. Magnesium nitrate hexahydrate [Mg(NO3)2 × 6H2O], sodium silicate pentahydrate [Na2SiO3 × 5H2O] were applied as precursors. The as-prepared nanocomposites were characterized by transmission and scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and Raman spectroscopy methods. These techniques revealed that multiwalled carbon nanotubes were successfully coated with talc-like oxides. In order to investigate the changes in the properties of reinforced polymers, these multiwalled carbon nanotube containing nanocomposites were implicated into polyamide, polyethylene and polypropylene matrices, respectively. Mechanical properties and thermal behavior of polymer composites were investigated using tensile test, dynamic mechanical analysis and thermogravimetric methods. It has been found that depending on the nature of polymer matrix the surface treated multiwalled carbon nanotubes influenced their mechanical properties differently. According to the results, incorporation of coated MWCNT filler composite into various polymer matrices is a promising method to enhance their mechanical properties.
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Keywords: Carbon Nanotubes; Composites; Mechanical Properties Characterization; Nanotechnology

Document Type: Research Article

Affiliations: 1: Department of Applied and Environmental Chemistry, University of Szeged, Szeged H-6720, Hungary 2: Faculty of Mechanical Engineering and Automation, Kecskemét College, Kecskemét H-6000, Hungary

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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