Effect of clay contents on Morphology, Thermal and Mechanical properties of Polypropylene Nanocomposites.

  • Nithitanakul Manit (The Petroleum and Petrochemical College, Chulalongkorn University) ;
  • Grady Brain P. (School of Chemical Engineering and Material Science, University of Oklahoma) ;
  • Magaraphan Rathanawan (The Petroleum and Petrochemical College, Chulalongkorn University) ;
  • Muksing Nattaya (The Petroleum and Petrochemical College, Chulalongkorn University)
  • Published : 2006.10.13

Abstract

Two different sources of clay, Na-Bentonite (Thai local clay) and Na-Montmorillonite were modified with Hexadodeccyltrimethyl ammonium bromide. The nanocomposites of polypropylene were successfully prepared via melt blending in a co-rotating twin screw extruder by using PP-g-MA as a compatibilizer at various contents of organoclays. The morphology of nanocomposites was investigated by using XRD and SEM. The results showed that the intercalated and exfoliated structures were obtained. The thermal behavior was also studied by using DSC and TGA. The degradation temperature of filled PP was greater than that of unfilled PP by 20%. And, the tensile strength and modulus were improved when a small amount of organoclays were added.

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