ABSTRACT This work presents the effect of synthetic procedures (extrusion and casting) on the dispersion characteristics of nano layered silicate clay particles in the polypropylene (PP) polymer matrix. Three different molecular weights PP samples are taken and filled with nanoclay of 1 wt% and 3 wt%, and these nanocomposites were synthesized by using an extrusion or casting methods. The X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) is used to characterize the structure and morphology of nanocomposites. Rheological and mechanical results show that the extruded products are better than that of cast products. The outcome of this work is discussed in this paper.
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nullT. Mohan and K. Kanny, "Effects of Synthetic and Processing Methods on Dispersion Characteristics of Nanoclay in Polypropylene Polymer Matrix Composites," Materials Sciences and Applications, Vol. 2 No. 7, 2011, pp. 785-800. doi: 10.4236/msa.2011.27108.
 E. Chabert, M. Bornert, E. Bourgeat-Lami, J.-Y. Cavaille, R. Dendievel, C. Gauthier, J. L. Putaux and A. Zaoui, “Filler–Filler Interactions and Viscoelastic Behavior of Polymer Nanocomposites,” Materials Science and Engineering A, Vol. 381, No. 1-2, 15, September 2004, pp. 320-330.
 J. Jordan, I. Karl Jacob, R. Tannenbaum, M. A. Sharaf and I. Jasiuk, “Experimental Trends in Polymer Nanocomposites—A Review,” Materials Science and Engineering A, Vol. 393, No. 1-2, 25 February 2005, pp. 1-11.
 G. T. Wang, Hong-Yuan Liu, Nicolas Saintier and Yiu-Wing Mai, “Cyclic Fatigue of Polymer Nanocomposites,” Engineering Failure Analysis, Vol. 16, No. 8, December 2009, pp. 2635-2645.
 R. Qiao and L. C. Brinson, “Simulation of Interphase Percolation and Gradients in Polymer Nanocomposites,” Composites Science and Technology, Vol. 69, No. 3-4, March 2009, pp. 491-499.
 S. Pavlidou and C. D. Papaspyrides, “A Review on Polymer-Layered Silicate Nanocomposites,” Progress in Polymer Science, Vol. 33, No. 12, December 2008, pp. 1119-1198. doi:10.1016/j.polymdegradstab.2005.04.040
 J. G. Zhang, D. D. Jiang and C. A. Wilkie, “Fire Properties of Styrenic Polymer-Clay Nanocomposites Based on an Oligomerically-Modified Clay,” Polymer Degradation and Stability, Vol. 91, No. 2, February 2006, pp. 358-366.
 E. M. Araujo, R. Barbosa, A. W. B. Rodrigues, T. J. A. Melo and E. N. Ito, “Processing and Characterization of Polyethylene/Brazilian Clay Nanocomposites,” Materials Science and Engineering A, Vol. 445-446, 15 February 2007, pp. 141-147. doi:10.1016/j.msea.2006.09.012
 R. Sarathi, R. K. Sahu and P. Rajeshkumar, “Understanding the Thermal, Mechanical and Electrical Properties of Epoxy Nanocomposites,” Materials Science and Engineering A, Vol. 445-446, 15 February 2007, pp. 567-578. doi:10.1016/j.msea.2006.09.077
 S.-J. Park, B.-J. Kim, D.-I. Seo, K.-Y. Rhee and Y.-Y. Lyu, “Effects of a Silane Treatment on the Mechanical Interfacial Properties of Montmorillonite/Epoxy Nanocomposites”, Materials Science and Engineering A, Vol. 526, No. 1-2, 25 November 2009, pp. 74-78.
 Y. C. Hu, L. Shen, H. Yang, M. Wang, T. X. Liu, T. Liang and J. Zhang, “Nanoindentation Studies on Nylon 11/Clay Nanocomposites,” Polymer Testing, Vol. 25, No. 4, June 2006, pp. 492-497.
 Y. H. Lee, T. Kuboki, C. B. Park, M. Sain and M. Kontopoulou, “The Effects of Clay Dispersion on the Mechanical, Physical, and Flame-Retarding Properties of Wood Fiber/Polyethylene/Clay Nanocomposites,” Journal of Applied Polymer Science, Vol. 118, No. 1, 2010, pp. 452-461.
 L. B. de Paiva, A. R. Morales, R. Francisco and V. Díaz, “Organoclays: Properties, Preparation and Applications,” Applied Clay Science, Vol. 42, No. 1-2, December 2008, pp. 8-24. doi:10.1016/j.clay.2008.02.006
 L. B. de Paiva, A. R. Morales and T. R. Guimaraes, “Structural and Optical Properties of Polypropylene-Montmorillonite Nanocomposites,” Materials Science and Engineering A, Vol. 447, No. 1-2, 25, February 2007, pp. 261-265.
 L. Raka, G. Bogoeva-Gaceva, K. Lu and J. Loos, “Characterization Of Latex-Based Isotactic Polypropylene/Clay Nanocomposites”, Polymer, Vol. 50, No. 15, 17 July 2009, pp. 3739-3746. doi:10.1016/j.polymer.2009.05.044
 Y. Dong and D. Bhattacharyya, “Dual Role of Maleated Polypropylene in Processing and Material Characterisation of Polypropylene/Clay Nanocomposites,” Materials Science and Engineering A, Vol. 527, No. 6, 15 March 2010, pp. 1617-1622. doi:10.1016/j.msea.2009.10.043
 D. Garcia-Lopez, O. Picazo, J. C. Merino and J. M. Pastor, “Polypropylene-Clay Nanocomposites: Effect of Compatibilizing Agents on Clay Dispersion,” European Polymer Journal, Vol. 39, No. 5, May 2003, pp. 945-950.
 J. Ma, E. Bilotti, T. Peijs and J. A. Darr, “Preparation of Polypropylene/Sepiolite Nanocomposites Using Supercritical CO2 Assisted Mixing,” European Polymer Journal, Vol. 43, No. 12, December 2007, pp. 4931-4939.
 C. O. Rohlmann, M. F. Horst, L. M. Quinzani and M. D. Failla, “Comparative Analysis of Nanocomposites Based on Polypropylene and Different Montmorillonites,” European Polymer Journal, Vol. 44, No. 9, September 2008, pp. 2749-2760.
 S. G. Lei, S. V. Hoa and M. -T. Ton-That, “Effect of Clay Types on the Processing and Properties of Polypropylene Nanocomposites,” Composites Science and Technology, Vol. 66, No. 10, August 2006, pp. 1274-1279
 Y. X. Zhou, M. I. Jeelani and S. Jeelani, “Development of Photo Micro-Graph Method to Characterize Dispersion of Cnt in Epoxy,” Materials Science and Engineering A, Vol. 506, No. 1-2, 25, April 2009, pp. 39-44.
 L. Cauvin, D. Kondo, M. Brieu and N. Bhatnagar, “Mechanical Properties of Polypropylene Layered Silicate Nanocomposites: Characterization and Micro-Macro Modelling,” Polymer Testing, Vol. 29, No. 2, April 2010, pp. 245-250. doi:10.1016/j.polymertesting.2009.11.007
 L. Cauvin, D. Kondo, M. Brieu and N. Bhatnagar, “Mec-Hanical Behavior of a PP Platelet-Reinforced Nanocomposite: Experimental Characterization and Two Scale Modeling of Linear and Non-linear Response,” Materials Science and Engineering A, Vol. 527, No. 4-5, 15 February 2010, pp. 1102-1108.
 L. L. Cui and D. R. Paul, “Evaluation of Amine Functionalized Polypropylenes as Compatibilizers for Polypropylene Nanocomposites,” Polymer, Vol. 48, No. 6, 8 March 2007, pp. 1632-1640.
 M. Modesti, A. Lorenzetti, D. Bon and S. Besco, “Thermal Behaviour of Compatibilised Polypropylene Nanocomposite: Effect of Processing Conditions,” Polymer Degradation and Stability, Vol. 91, No. 4, April 2006, pp. 672-680. doi:10.1016/j.polymdegradstab.2005.05.018
 R. D. K. Misra, Q. Yuan, J. Chen and Y. Yang, “Hierarchical Structures and Phase Nucleation and Growth During Pressure-Induced Crystallization of Polypropylene Containing Dispersion of Nanoclay: The Impact on Physical and Mechanical Properties,” Materials Science and Engineering A, Vol. 527, No. 9, 15 April 2010, pp. 2163-2181.
 T. Labour, C. Gauthier, R. Seguela, G. Vigier, Y. Bomal and G. Orange, “Influence of the β Crystalline Phase on the Mechanical Properties of Unfilled and CACO3-Filled Polypropylene. i. Structural and Mechanical Characterisation,” Polymer, Vol. 42, No. 16, July 2001, pp. 7127-7135. doi:10.1016/S0032-3861(01)00089-1