Composition and mechanical properties of polypropylene montmorillonite nanocomposites

Pannirselvam, M, Ivanov, I, Bhattacharya, S and Shanks, R 2007, 'Composition and mechanical properties of polypropylene montmorillonite nanocomposites', in RM Scott (ed.) 2007 CHEMECA Conference Proceedings, Melbourne, Australia, 23-26 September 2007.


Document type: Conference Paper
Collection: Conference Papers

Title Composition and mechanical properties of polypropylene montmorillonite nanocomposites
Author(s) Pannirselvam, M
Ivanov, I
Bhattacharya, S
Shanks, R
Year 2007
Conference name CHEMECA 2007
Conference location Melbourne, Australia
Conference dates 23-26 September 2007
Proceedings title 2007 CHEMECA Conference Proceedings
Editor(s) RM Scott
Publisher Engineers Australia
Place of publication Melbourne, Australia
Abstract Montmorillonite layered clay has been treated with poly (ethylene) glycol (PEG) based surfactants with long alkyl chains. PEG600 possesses both intercalating property between clay layers and compatibilizing property with polypropylene. The treated clay was used to prepare polypropylene clay nanocomposites. Maleic anhydride grafted polypropylene (MA-PP) was added to the mixture of the treated clay and the polypropylene to prevent aggregation. We successfully prepared polypropylene nanocomposite, using solution blending technique. The effect of treated clay on the thermal, structural, and dynamic mechanical properties of polypropylene were analysed with thermogravimetry (TGA), wide angle x-ray scattering (WAXS), transmission electron microscopy, and dynamic mechanical analysis. X-ray diffraction showed that the clay is well dispersed and preferentially embedded in the polymer matrix. The thermal stability enhancement of PP after adding treated clay was determined with thermogravimetry (TGA). The exfoliation degree of the clay decreased with increasing organoclay content. The transmission electron microscopy studies showed a better dispersion of clay in the PP matrix. Furthermore, the dynamic mechanical analysis studies showed an increase in the storage modulus and glass transition temperature for PP nanocomposite with respect to pure polypropylene.
Subjects Composite and Hybrid Materials
Keyword(s) PP
nanocomposites
mechanical properties
Copyright notice © Engineers Australia 2007
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