Superpozice smykových toků plněných polymerních tavenin

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Superposed steady shear and oscillatory flows of fiber filled polymer melts

Popis výsledku v původním jazyce

Superposed steady and oscillatory shear flow measurements provide non-conventional view on characterization of fibre filled systems. The purpose of this study was to investigate the flow properties of polymer melt compounded with carbon fibre (CF) underthe parallel superposed steady and oscillatory shear flows. The effect of the steady shear on the viscoelastic properties as well as the effect of fibre content on the superposed flow properties were discussed. Overall, superposed flow conditions enhanced viscoelastic response (dynamic viscosity, storage modulus) of the filled systems. The critical angular frequency, where phase angle becomes 90° and storage modulus decreases sharply to zero, was found to be largely dependent on the volume fraction of fibre, regardless of the superposed shear rate. Whereas superposed flow properties of the pure melt changed monotonously, those of the composites showed peaks in corresponding dependencies, even if under simple shear flows they behaved in

Název v anglickém jazyce

Superposed steady shear and oscillatory flows of fiber filled polymer melts

Popis výsledku anglicky

Superposed steady and oscillatory shear flow measurements provide non-conventional view on characterization of fibre filled systems. The purpose of this study was to investigate the flow properties of polymer melt compounded with carbon fibre (CF) underthe parallel superposed steady and oscillatory shear flows. The effect of the steady shear on the viscoelastic properties as well as the effect of fibre content on the superposed flow properties were discussed. Overall, superposed flow conditions enhanced viscoelastic response (dynamic viscosity, storage modulus) of the filled systems. The critical angular frequency, where phase angle becomes 90° and storage modulus decreases sharply to zero, was found to be largely dependent on the volume fraction of fibre, regardless of the superposed shear rate. Whereas superposed flow properties of the pure melt changed monotonously, those of the composites showed peaks in corresponding dependencies, even if under simple shear flows they behaved in

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Trends in the Development of Machinery and Associated Technology

ISBN

9958-617-30-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1259-1262

Název nakladatele

Faculty of Mechanical Engineering in Zenica

Místo vydání

Zenica

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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