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Enhancement of Flame Retardancy of Rubber Matrix Using Nanofillers

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Natural rubber (NR) nanocomposites filled with carbon nanotubes (CNT) and organoclay (O-MMT) were prepared by melt mixing, and their vulcanization, mechanical, thermal and flammability properties were characterized. The obtained results were compared with those of carbon black (CB) and pure NR composites. The incorporation of OC reduced drastically the cure times, when compared with CNT and CB-reinforced compounds. The addition of CNT increased considerably the difference between minimum and maximum torques compared with OC and CB-reinforced composites. The mechanical properties were improved by adding nanofillers of CNT and OC. The nanocomposites filled with OC and CNT showed lower peak heat release rate (PHRR) obtained from a cone calorimeter and corresponding reduced surface cracks of formed chars after burning. A slight synergistic effect was found for NR nanocomposite having equal amount of OC and CNT.


Document Type: Research Article


Publication date: 2008-10-01

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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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