Publications Scientifiques

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Author: search.filters.author.Serier, AichaSubject: search.filters.subject.Nanocomposites

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    The effect of thermoplastic starch on the properties of polypropylene/high density polyethylene blend reinforced by nano-clay
    (Institute of Physics Publishing, 2020) Hammache, Yassine; Serier, Aicha; Chaoui, Saliha
    Polypropylene (PP) and high density polyethylene (HDPE) was melt-blended in pairs at a constant of 80:20 (mm) compositions; this blend is prepared by one-step reactive extrusion in a single-screw extruder. The present study aims to investigate the effect of thermoplastic starch (TPS) on the properties of PP and HDPE blend. This later has been investigated in the absence and presence of maleic anhydride grafted polyethylene (PE-g-MA), and reinforced by nano-clay. All the blends/nano-bio-composites were prepared in an internal mixer. The results indicates changes in the blends in terms of morphological, Mechanical, Thermal, structural and rheological properties. However, the different blends and nano-bio-composites were studied by means of Thermogravimetry (TG), Differential scanning calorimeter (DSC), Melt flow index (MFI), Izod impact (unnotched) tests, Scanning Electron Microscopy (SEM) and x-ray diffraction (XRD).
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    Properties of polypropylene/polyamide nanocomposites prepared by melt processing with a PP-g-MAH compatibilizer
    (Elsevier, 2012) Kouini, Benalia; Serier, Aicha
    This article presents the mechanical properties, fire retardancy behavior and the morphology of polypro- pylene/polyamide66 blends compatibilizedwith PP-g-MAH and modified with nanoclays. AllPP/PA66 for- mulations modified with untreated and treated nanoclays were prepared by using internal mixer and single screw extruder followed by injection molding. Maleic anhydride polypropylene (MAH-g-PP) was used as the compatibilizer and the nanoclays content was varied between 0 and 8 wt.%. The mechanical and flammability properties of PP/PA66 nanocomposites were examined. Also the structure of PP/PA66 nanocomposites has been characterized by the Scanning electron microscopy (SEM) and the X-ray diffrac- tion (XRD). Theobtainedresultsindicatethattheincorporationofnanoclayhasasignificanteffectonthestrengthof PP/PA66 nanocomposites. Furthermore, it was found that SEM and XRD results revealed the intercalation, exfoliation of nanaclays of nanocomposites and the flame retardancy properties were improved signifi- cantly. In addition a good balance of impact strength and flame retardancy was obtained for PP/PA66 nanocomposites in the presence of PP-g-MA compatibilizer