Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F04%3A63502768" target="_blank" >RIV/70883521:28110/04:63502768 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Rheological Behaviour of PP/PET and Modified PP/PET Blends. II. Dynamic Viscoelastic Properties.

Original language description

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 byboth 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 compatibilisationcan 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.

Czech name

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

Czech 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.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CD - Macromolecular chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Polymers and Polymer Composites

ISSN

0967-3911

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

433-447

UT code for WoS article

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EID of the result in the Scopus database

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