Effect of Hencky strain on extensional rheology determined from entrance pressure drop measurements
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F24%3A63580478" target="_blank" >RIV/70883521:28110/24:63580478 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of Hencky strain on extensional rheology determined from entrance pressure drop measurements
Popis výsledku v původním jazyce
In this work, new die [1] is proposed for the determination of the extensional viscosity at various Hencky strains from entrance pressure drop measurements using a high-pressure capillary rheometer. The new concept makes it possible to change the Hencky strain independently of the Hencky strain rate. The new die consists of an easily replaceable cylindrical chamber to which free-flow orifice die [2-5] is attached. The Hencky strain is controlled by changing the diameter of the cylindrical chamber while keeping the diameter of the free-flow orifice die the same. The new die was used to determine extensional rheology of various polyolefin melts and the results obtained were compared with corresponding data from the Sentmanat extensional rheometer.Acknowledgement: The authors wish to acknowledge the Grant Agency of the Czech Republic (Grant No. 24-11442S) for the financial support and NETZSCH Gerätebau GmbH for providing the Rosand RH10-2 capillary rheometer.References.1. M. Zatloukal, Czech patent 307664 (2018).2. M. Zatloukal, J. Musil, Czech patent 304382 (2014).3. M. Zatloukal, J. Musil, Polymer Testing 28, 843 (2009).4. M. Zatloukal, Polymer, 104, 258 (2016).5. M. Zatloukal, Czech patent 309071 (2021).
Název v anglickém jazyce
Effect of Hencky strain on extensional rheology determined from entrance pressure drop measurements
Popis výsledku anglicky
In this work, new die [1] is proposed for the determination of the extensional viscosity at various Hencky strains from entrance pressure drop measurements using a high-pressure capillary rheometer. The new concept makes it possible to change the Hencky strain independently of the Hencky strain rate. The new die consists of an easily replaceable cylindrical chamber to which free-flow orifice die [2-5] is attached. The Hencky strain is controlled by changing the diameter of the cylindrical chamber while keeping the diameter of the free-flow orifice die the same. The new die was used to determine extensional rheology of various polyolefin melts and the results obtained were compared with corresponding data from the Sentmanat extensional rheometer.Acknowledgement: The authors wish to acknowledge the Grant Agency of the Czech Republic (Grant No. 24-11442S) for the financial support and NETZSCH Gerätebau GmbH for providing the Rosand RH10-2 capillary rheometer.References.1. M. Zatloukal, Czech patent 307664 (2018).2. M. Zatloukal, J. Musil, Czech patent 304382 (2014).3. M. Zatloukal, J. Musil, Polymer Testing 28, 843 (2009).4. M. Zatloukal, Polymer, 104, 258 (2016).5. M. Zatloukal, Czech patent 309071 (2021).
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
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OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
<a href="/cs/project/GA24-11442S" target="_blank" >GA24-11442S: Reologie a modelování toků polymerních tavenin při velmi vysokých rychlostech deformace s ohledem na produkci meltblown nanovláken</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů