Measurement of elongational viscosity of polymer melts using SER Universal Testing Platform

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F12%3A00376037" target="_blank" >RIV/67985874:_____/12:00376037 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ar.ethz.ch/TMPPDF/23074299892.48/ApplRheol_22_14776.pdf" target="_blank" >http://www.ar.ethz.ch/TMPPDF/23074299892.48/ApplRheol_22_14776.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3933/ApplRheol-22-14776" target="_blank" >10.3933/ApplRheol-22-14776</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of elongational viscosity of polymer melts using SER Universal Testing Platform

Popis výsledku v původním jazyce

The measurement of elongational viscosity still evokes a series of problems in comparison with the relatively well-established measurement of shear viscosity. Recently new techniques have appeared enabling measurement of elongational viscosity with the samples for which the aspect ratios of their geometrical shapes (i.e. length vs. width (diameter)) can attain moderate values, i.e. not necessarily of a longitudinal character as in the case of earlier techniques. The aim of this contribution is to experimentally demonstrate the invariantness of transient uniaxial elongational viscosity measured with respect to a rectangular shape and thickness of LDPE samples using a SER Universal Testing Platform fixed in an Anton Paar MCR 501 host system. The width ofthe samples was varied within the range 2.1-12.7 mm and thickness altered within 0.1-1 mm. An advantage of fixing polymer samples directly to both drums (if possible) over the application of clamps is documented.

Název v anglickém jazyce

Measurement of elongational viscosity of polymer melts using SER Universal Testing Platform

Popis výsledku anglicky

The measurement of elongational viscosity still evokes a series of problems in comparison with the relatively well-established measurement of shear viscosity. Recently new techniques have appeared enabling measurement of elongational viscosity with the samples for which the aspect ratios of their geometrical shapes (i.e. length vs. width (diameter)) can attain moderate values, i.e. not necessarily of a longitudinal character as in the case of earlier techniques. The aim of this contribution is to experimentally demonstrate the invariantness of transient uniaxial elongational viscosity measured with respect to a rectangular shape and thickness of LDPE samples using a SER Universal Testing Platform fixed in an Anton Paar MCR 501 host system. The width ofthe samples was varied within the range 2.1-12.7 mm and thickness altered within 0.1-1 mm. An advantage of fixing polymer samples directly to both drums (if possible) over the application of clamps is documented.

Druh

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

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Applied Rheology

ISSN

1430-6395

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

14776

Kód UT WoS článku

000301871900008

EID výsledku v databázi Scopus

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