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Reologické chování PP/PET a modifikovaných PP/PET směsí. II. Dynamické viskoelastické vlastnosti.

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dc.title Reologické chování PP/PET a modifikovaných PP/PET směsí. II. Dynamické viskoelastické vlastnosti. cs
dc.title Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties. en
dc.contributor.author Zdražilová, Natálie
dc.contributor.author Hausnerová, Berenika
dc.contributor.author Kitano, Takeshi
dc.contributor.author Sáha, Petr
dc.relation.ispartof Polymers and Polymer Composites
dc.identifier.issn 0967-3911 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2004
utb.relation.volume 12
utb.relation.issue 5
dc.citation.spage 433
dc.citation.epage 447
dc.type article
dc.language.iso en
dc.publisher Rapra Technology Ltd. en
dc.subject polypropylen cs
dc.subject polyetylentereftalát cs
dc.subject směs cs
dc.subject modifikátor cs
dc.subject in situ kompatibilizace cs
dc.subject dynamické viskoelastické vlastnosti cs
dc.subject polypropylene en
dc.subject polyethylene terephthalate en
dc.subject blend en
dc.subject modifier en
dc.subject in situ compatibilisation en
dc.subject dynamic viscoelastic properties en
dc.description.abstract Článek se zabývá studiem dynamických viskoelastických vlastností směsí polypropylenu (PP) s polyetylentereftalátem (PET). Z faktorů ovlivňujících tokové chování byl studován efekt zvolené PP matrice, způsob kompatibilizace, vztah k fázové struktuře a porovnání reologických charakteristik stanovených při oscilačním a ustáleném smykovém režimu při měření na rotačním reometru. cs
dc.description.abstract The increasing amount of post-consumer waste leads to a search for effective recycling methods. Compatibilisation of immiscible blends of polypropylene (PP) and polyethylene terephthalate (PET) represents one such novel approach that allows recycling of significant scrap materials without any need for separation steps. The intention of this paper is to investigate dynamic viscoelastic properties of unmodified and modified PP/PET blends. To study the effect of matrix, three polypropylenes differing in flow properties were chosen. The compatibilisation was carried out by both one- or two-step reactive in situ techniques. In the former case, the addition of 1 wt.% of maleic anhydride (MA), and in the latter, polypropylene supplied as already modified by the producer were employed. The positive effect of compatibilisation can be concluded not only from the results of the morphological study (dispersed phase size reduction, strengthened interfacial adhesion), but also through increased values of viscous and elastic characteristics, which suggests enhanced interactions between the blend components. Comparing steady shear and dynamic viscoelastic properties, the various extent of deformation applied during both types of measurements leading to different material response should be considered. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1000397
utb.identifier.rivid RIV/70883521:28110/04:63502768
utb.identifier.obdid 12052508
utb.identifier.scopus 2-s2.0-4644231899
utb.identifier.wok 000224535600008
utb.source j-riv
utb.contributor.internalauthor Zdražilová, Natálie
utb.contributor.internalauthor Hausnerová, Berenika
utb.contributor.internalauthor Sáha, Petr
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