Effect of added ionomer on morphology and properties of PP/clay nanocomposites

  • Liu, Hongzhi (School of Chemical and Biological Engineering, Seoul National University) ;
  • Lim, Hyoung-Taek (School of Chemical and Biological Engineering, Seoul National University) ;
  • Kim, Yong-Kyoung (School of Chemical and Biological Engineering, Seoul National University) ;
  • Han, Nam-Kun (School of Chemical and Biological Engineering, Seoul National University) ;
  • Ahn, Kyung-Hyun (School of Chemical and Biological Engineering, Seoul National University) ;
  • Lee, Seoung-Jong (School of Chemical and Biological Engineering, Seoul National University)
  • Published : 2006.10.13

Abstract

With poly (ethylene-co-methacrylic acid) ionomer (i.e. Surlyn) as a compatibilizer, PP/organoclay (Cloisite(R)20A) nanocomposites were prepared via melt compounding in a co-rotating twin-screw extruder. For comparison, the widely used PP-g-MA was also used as a reference. The content of organoclay was fixed at 5phr based on the total weight of polymer resins. The structures of nanocomposites were characterized by XRD, rheometry in small amplitude oscillatory shear, SEM, and TEM, respectively. It was found that PP/Surlyn/OMMT nanocomposites displayed higher intercalation degree and better dispersion effect than the corresponding PP/PP-g-MA/OMMT counterpart. Additionally, their mechanical properties and wettability were measured.

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