Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder
Polypropylene/polycarbonate (PP/PC) nanocomposites containing various proportions of the organically modified montmorillonite were prepared by extrusion and injection molding process. The morphology of PP/PC nanocomposites was characterized by transmission electron microscopy (TEM), scanning electro...
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doaj-74143637cb144e09b66d5b1d770bc7272021-09-05T14:00:31ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592018-01-01251313910.1515/secm-2015-0406Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruderEsmizadeh Elnaz0Naderi Ghasem1Arezoomand Sahar2Mazinani Saeedeh3Department of Polymer Science and Technology, University of Bonab, PO Box 5551761167, Bonab, IranFaculty of Processing, Iran Polymer and Petrochemical Institute (IPPI), PO Box 14965-115, Tehran, IranDepartment of Polymer Engineering, South Tehran Branch, Islamic Azad University, Tehran 1777613651, IranDepartment of Polymer Engineering, South Tehran Branch, Islamic Azad University, Tehran 1777613651, IranPolypropylene/polycarbonate (PP/PC) nanocomposites containing various proportions of the organically modified montmorillonite were prepared by extrusion and injection molding process. The morphology of PP/PC nanocomposites was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The nanocomposites with 3 or 5 wt% of nanoclay (NC) show a uniform dispersion of the NC as pointed out by two different methods, TEM and XRD. It was shown that the morphology of dispersed phase (PC) is highly dependent on the content of minor phase, which was correlated with the balance of drop breakup and coalescence. The mechanical properties have been investigated by tensile test and Izod impact test. The virgin PP/PC samples showed a reduction in impact strength and elongation at break and up to 50% increase in Young’s modulus by increase in PP content comparing with the pure PP. Investigating the effect of NC and PC content on the mechanical behavior of PP/PC nanocomposites showed increased Young’s modulus and decreased impact strength with increasing PC and NC loading. An obvious ductile to brittle behavior transition at a high content of PC or NC was supported by notched Izod impact strength experiments and SEM results.https://doi.org/10.1515/secm-2015-0406extrusionnanocompositepolypropyleneorganoclaypolycarbonate |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Esmizadeh Elnaz Naderi Ghasem Arezoomand Sahar Mazinani Saeedeh |
spellingShingle |
Esmizadeh Elnaz Naderi Ghasem Arezoomand Sahar Mazinani Saeedeh Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder Science and Engineering of Composite Materials extrusion nanocomposite polypropylene organoclay polycarbonate |
author_facet |
Esmizadeh Elnaz Naderi Ghasem Arezoomand Sahar Mazinani Saeedeh |
author_sort |
Esmizadeh Elnaz |
title |
Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
title_short |
Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
title_full |
Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
title_fullStr |
Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
title_full_unstemmed |
Fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
title_sort |
fabrication and characterization properties of polypropylene/polycarbonate/clay nanocomposites prepared with twin-screw extruder |
publisher |
De Gruyter |
series |
Science and Engineering of Composite Materials |
issn |
0792-1233 2191-0359 |
publishDate |
2018-01-01 |
description |
Polypropylene/polycarbonate (PP/PC) nanocomposites containing various proportions of the organically modified montmorillonite were prepared by extrusion and injection molding process. The morphology of PP/PC nanocomposites was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The nanocomposites with 3 or 5 wt% of nanoclay (NC) show a uniform dispersion of the NC as pointed out by two different methods, TEM and XRD. It was shown that the morphology of dispersed phase (PC) is highly dependent on the content of minor phase, which was correlated with the balance of drop breakup and coalescence. The mechanical properties have been investigated by tensile test and Izod impact test. The virgin PP/PC samples showed a reduction in impact strength and elongation at break and up to 50% increase in Young’s modulus by increase in PP content comparing with the pure PP. Investigating the effect of NC and PC content on the mechanical behavior of PP/PC nanocomposites showed increased Young’s modulus and decreased impact strength with increasing PC and NC loading. An obvious ductile to brittle behavior transition at a high content of PC or NC was supported by notched Izod impact strength experiments and SEM results. |
topic |
extrusion nanocomposite polypropylene organoclay polycarbonate |
url |
https://doi.org/10.1515/secm-2015-0406 |
work_keys_str_mv |
AT esmizadehelnaz fabricationandcharacterizationpropertiesofpolypropylenepolycarbonateclaynanocompositespreparedwithtwinscrewextruder AT naderighasem fabricationandcharacterizationpropertiesofpolypropylenepolycarbonateclaynanocompositespreparedwithtwinscrewextruder AT arezoomandsahar fabricationandcharacterizationpropertiesofpolypropylenepolycarbonateclaynanocompositespreparedwithtwinscrewextruder AT mazinanisaeedeh fabricationandcharacterizationpropertiesofpolypropylenepolycarbonateclaynanocompositespreparedwithtwinscrewextruder |
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1717811785989357568 |