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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Polymers and Polymer Composites

ISSN

0967-3911

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

433-447

Kód UT WoS článku

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EID výsledku v databázi Scopus

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