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Fabrication and Characterization of Polypropylene/Ethylene-Octene Copolymer Blend Nanocomposites

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Abstract:

PP/EOC thermoplastic blend nanocomposites were prepared by melt intercalation technique using an intermeshing co-rotating twin screw extruder. The organoclay (Na+ MMT, Cloisite 20A, Cloisite 30B) content was varied between 0-5wt. % whereas the blend composition was kept constant (70PP: 30EOC) as optimized in our previous work. The effects of clays on the mechanical and rheological properties have been studied. Mechanical studies of PP/EOC nanocomposites reveal a significant increase in the impact strength upto a clay content of 3%. X-ray diffraction (XRD) analysis showed a significant increase in the interlayer gallery space with increase in clay loading. The rheological characterization made employing parallel plate rheometer revealed a maximum increase in storage modulus (G’) and loss modulus (G”) in case of modified clay indicating higher stiffness of the nanocomposites as compared to unmodified nanocomposites. Time Temperature superposition (TTS) was employed to generate various viscoelastic mastercurves.

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Periodical:

Advanced Materials Research (Volumes 29-30)

Pages:

267-270

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.29-30.267

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Online since:

November 2007

Authors:

S.K. Samal, S. Mohanty, S.K. Nayak

Keywords:

DMA, Dye Sensitized Solar Cell (DSSC), PP/EOC Blend, TGA, TTS, WAXD

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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