Polypropylene/montmorillonite nanocomposites toughened with SEBS-g-MA: Structure-property relationship

Polypropylene (PP)/organo‐montmorillonite (Org‐MMT) nanocomposites toughened with maleated styrene‐ethylene‐butylene‐styrene (SEBS‐g‐MA) were prepared via melt compounding. The structure, mechanical properties, and dynamic mechanical properties of PP/SEBS‐g‐MA blends and their nanocomposites were in...

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Veröffentlicht in:Journal of polymer science. Part B, Polymer physics Polymer physics, 2005-11, Vol.43 (21), p.3112-3126
Hauptverfasser: Tjong, S. C., Bao, S. P., Liang, G. D.
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container_issue 21
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container_title Journal of polymer science. Part B, Polymer physics
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creator Tjong, S. C.
Bao, S. P.
Liang, G. D.
description Polypropylene (PP)/organo‐montmorillonite (Org‐MMT) nanocomposites toughened with maleated styrene‐ethylene‐butylene‐styrene (SEBS‐g‐MA) were prepared via melt compounding. The structure, mechanical properties, and dynamic mechanical properties of PP/SEBS‐g‐MA blends and their nanocomposites were investigated by X‐ray diffraction (XRD), polarizing optical microscopy (POM), tensile, and impact tests. XRD traces showed that Org‐MMT promoted the formation of β‐phase PP. The degree of crystallinity of PP/SEBS‐g‐MA blends and their nanocomposites were determined from the wide angle X‐ray diffraction via profile fitting method. POM experiments revealed that Org‐MMT particles served as nucleating sites, resulting in a decrease of the spherulite size. The essential work of fracture approach was used to evaluate the tensile fracture toughness of the nanocomposites toughened with elastomer. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 3112–3126, 2005
doi_str_mv 10.1002/polb.20596
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source Wiley Online Library Journals Frontfile Complete
subjects Applied sciences
Composites
crystallinity
essential work of fracture
Exact sciences and technology
Forms of application and semi-finished materials
montmorillonite
nanocomposites
Polymer industry, paints, wood
polypropylene
Technology of polymers
title Polypropylene/montmorillonite nanocomposites toughened with SEBS-g-MA: Structure-property relationship
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