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| Volume 3, Issue 04 - 2007 |
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| 4 |
Behavior of Polypropylene Nanocomposites Containing
Alumina Nanoparticles
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| Pages 35-42 |
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| E. Zelikman1, R. Tchoudakov1, M. Narkis1*, A. Siegmann2 |
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1 Department of Chemical Engineering
* E-mail: narkis@tx.technion.ac.il
2 Department of Materials Engineering
Technion – IIT
Haifa 32000, Israel
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| Received 14 October 2007; accepted 23 October 2007 |
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This paper presents characterization of polypropylene (PP)/alumina nanocomposites. The nanocomposites were pre¬pared via melt processing using a twin-screw extruder. Two types of alumina, 13 nm and 50 nm mean particle size, were incorporated into a PP matrix. The effect of processing temperature on the nanocomposite properties was also studied. The nanocomposites were characterized using SEM, TGA, DSC and capillary rheometry. Lower processing temperature (210oC vs. 260oC) caused a better dispersion of alumina in the PP matrix. The effect was more pronounced in the nanocomposites which contained alumina particles of the smaller size. Alumina nanoparticles have increased the thermal stability of PP. The crystallization temperature of PP increased in the alumina presence. Improvement of mechanical properties of PP/alumina nanocomposites was found in some nanocomposites.
Keywords: N/A |
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