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


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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.



Advanced Materials Research (Volumes 29-30)

Edited by:

Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek




S.K. Samal et al., "Fabrication and Characterization of Polypropylene/Ethylene-Octene Copolymer Blend Nanocomposites", Advanced Materials Research, Vols. 29-30, pp. 267-270, 2007

Online since:

November 2007




[1] Polymer-clay nanocomposites. In: Pinnavaia TG, Beall GW, ED, Editors,. New York: Wiley; (2000).

[2] M. Alexandre and P. Dubois: Mater. Sci. Eng. Vol. 28 (2000), p.1.

[3] H. Fischer: Mater. Sci. Eng. C. Vol. 23 (2003), p.763.

[4] S. Suprakas and R. Okamoto: Prog. Polym. Sci. Vol. 28 (2003), p.1539.

[5] E. P. Giannelies: Polymer layered silicate nanocomposites, Adv. Mater. Vol. 8(1996), p.29.

[6] E.P. Giannelies, R. Krishnamoorti and E. Manias Polymer-silicate nanocomposites: model systems for confined polymers and polymer brushes: Adv. Polymer. Sci. Vol. 138 (1999), p.107.

DOI: https://doi.org/10.1007/3-540-69711-x_3

[7] N. Furuichi, Y. Kurokawa, K. Fujita, A. Oyo, H. Yasuda and M. Kiso: J. Mater. Sci. Vol. 31 (1996), p.4307.

[8] Y. Kurokawa, H. Yasuda, M. Kashiwagi and A. Oyo: J. Mater. Sci. Lett. Vol. 16 (1997), p.1670.

[9] P. Adanda and E. Ruiz-Hitzky: Chem. Mater. Vol. 4 (1992), p.1395.

[11] R. Krishnamoorthi, R. A. Vaia and E. P. Giannelies: Chem. Mater. Vol. 8 (1996), p.1728.

[11] J. Ren, A.S. Silva and R. Krishnamoorti: Macromol. Vol. 39 (2000), p.3739.

[12] B. Hoffmann, C. Dietrich, R. Thomann, C. Friedrich and R. Mulhaupt: Macro Rapid Commun. Vol. 21 (2000), p.57.