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An evaluation of the pressure-dependent melt viscosity of polyphenylsulfone

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Název: An evaluation of the pressure-dependent melt viscosity of polyphenylsulfone
Autor: Sedláček, Tomáš; Hausnerová, Berenika; Filip, Petr
Typ dokumentu: Recenzovaný odborný článek (English)
Zdrojový dok.: Polymer Engineering and Science. 2014, vol. 54, issue 3, p. 711-715
ISSN: 0032-3888 (Sherpa/RoMEO, JCR)
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DOI: https://doi.org/10.1002/pen.23604
Abstrakt: A method for the determination of pressure-affected viscosity from capillary rheometry and pressure-volume-temperature (PVT) data was tested on polyphenylsulfone melt. Shear viscosity data evaluated at selected temperatures (345-375°C) were interlinked to the PVT data at pressures ranging from 1 to 200 MPa. According to the recently proposed correlation approach, a pressure-dependent shear viscosity is derived from the relationship (verified on several commodity polymers) between temperature-dependent viscosity and a free volume parameter computed using the Simha-Somcynsky equation of state. Finally, the predicted pressure-viscosity coefficient was compared with the value obtained experimentally on a modified single piston rheometer. POLYM. ENG. SCI., 54:711-715, 2014. © 2013 Society of Plastics Engineers.
Plný text: http://onlinelibrary.wiley.com/doi/10.1002/pen.23604/abstract
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Citace článku v časopise:
SEDLÁČEK, Tomáš, Berenika HAUSNEROVÁ a Petr FILIP. An evaluation of the pressure-dependent melt viscosity of polyphenylsulfone. Polymer Engineering and Science [online]. 2014, vol. 54, iss. 3, s. 711-715. [cit. 2024-11-24]. ISSN 0032-3888. Dostupné z: http://onlinelibrary.wiley.com/doi/10.1002/pen.23604/abstract.

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