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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F04%3A63502768%21RIV%2F2005%2FMSM%2F281105%2FN
rdf:type
n15:Vysledek skos:Concept
dcterms:description
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. 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. 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.
dcterms:title
Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties. Reologické chování PP/PET a modifikovaných PP/PET směsí. II. Dynamické viskoelastické vlastnosti. Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties.
skos:prefLabel
Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties. Reologické chování PP/PET a modifikovaných PP/PET směsí. II. Dynamické viskoelastické vlastnosti. Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties.
skos:notation
RIV/70883521:28110/04:63502768!RIV/2005/MSM/281105/N
n4:strany
433-447
n4:aktivita
n10:Z
n4:aktivity
Z(MSM 265200015)
n4:cisloPeriodika
5
n4:dodaniDat
n6:2005
n4:domaciTvurceVysledku
n11:5141443 n11:5474353 n11:3173402
n4:druhVysledku
n18:J
n4:duvernostUdaju
n7:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
584659
n4:idVysledku
RIV/70883521:28110/04:63502768
n4:jazykVysledku
n12:eng
n4:klicovaSlova
polypropylene; polyethylene terephthalate; blend; modifier; in situ compatibilisation; dynamic viscoelastic properties
n4:klicoveSlovo
n8:in%20situ%20compatibilisation n8:dynamic%20viscoelastic%20properties n8:modifier n8:polypropylene n8:blend n8:polyethylene%20terephthalate
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[84BC2DD317F9]
n4:nazevZdroje
Polymers and Polymer Composites
n4:obor
n13:CD
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
4
n4:rokUplatneniVysledku
n6:2004
n4:svazekPeriodika
12
n4:tvurceVysledku
Hausnerová, Berenika Kitano, Takeshi Zdražilová, Natálie Sáha, Petr
n4:zamer
n14:MSM%20265200015
s:issn
0967-3911
s:numberOfPages
15
n16:organizacniJednotka
28110