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Title: | Extrusion of polyethylene/polypropylene blends with microfibrillar-phase morphology | ||||||||||
Author: | Polášková, Martina; Čermák, Roman; Sedláček, Tomáš; Kalus, Jakub; Obadal, Martin; Sáha, Petr | ||||||||||
Document type: | Peer-reviewed article (English) | ||||||||||
Source document: | Polymer Composites. 2010, vol. 31, issue 8, p. 1427-1433 | ||||||||||
ISSN: | 0272-8397 (Sherpa/RoMEO, JCR) | ||||||||||
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DOI: | https://doi.org/10.1002/pc.20928 | ||||||||||
Abstract: | Extrusion of immiscible polymers under special conditions can lead to creation of microfibrillar-phase morphology, ensuring significant increase of mechanical properties of polymer profiles. Polyethylene/polypropylene blend extrudates with microfibrillar-phase morphology (polypropylene microfibrils reinforcing polyethylene matrix phase) were prepared through continuous extrusion with semihyperbolic-converging die enabling elongation and orientation of microfibrils in flow direction. Structure of extruded profiles was examined using electron microscopy and wide-angle X-ray scattering. Tensile tests proved that extrudates with microfibrillar-phase morphology show significantly higher mechanical properties than the conventional extrudates. | ||||||||||
Full text: | http://onlinelibrary.wiley.com/doi/10.1002/pc.20928/abstract | ||||||||||
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