Preparation and Characterization of Polypropylene/Organo-Muscovite Clay Nanocomposites by Melt Extrusion
DOI:
https://doi.org/10.22034/advjse22031023Keywords:
Polypropylene, Organo-muscovite clay, Nanocomposites, Compatibilizers, Mechanical propertiesAbstract
In this research work, polypropylene (PP)/organo-muscovite clay (OM) nanocomposites with different filler contents were manufactured using melt compounding technique in a twin-screw co-rotating extruder tracked by hot press method. Two compatibilizers such as maleated polypropylene and hexamethylenediamine modified maleated polypropylene copolymer were included in all nanocomposites containing 10 wt%. Mechanical properties have been observed to be influenced by OM nanoparticles as well as copolymer content. For tensile properties, the most observed were related to the sample with 5 wt% OM. The hexamethylenediamine modified maleated polypropylene copolymer system conferred superior tensile features than maleated polypropylene copolymer system and the PP/OM case. This outcome was confirmed from TEM and SEM micrographs. Evidently, the compatibilizers were operative to support the OM delamination. The hexamethylenediamine modified maleated polypropylene system had a partial exfoliation of PP/OM nanocomposites compared to the maleated polypropylene system. The inclusion of compatibilizers with OM has improved all tensile and thermal properties as well as the rheological behavior of nanocomposites, enhancing the strong interfacial interactions by compatibilizers.
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