Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen

Henrik Koblitz Rasmussen; Ole Hassager; Anders Bach; Jens Kromann Nielsen

Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen

Henrik Koblitz Rasmussen, Ole Hassager, Anders Bach, Jens Kromann Nielsen

Department of Chemical and Biochemical Engineering

Technical University of Denmark

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The transient (e.g. start up of) elongational viscosity of three low-density polyethylene (LDPE) melts (BASF Lupolen 1810H, 1840D and 3020D) was measured using a filament stretching rheometer (FSR) capable of measuring at elevated temperatures. The transient uni-axial elongational viscosity showed an overshoot in the transient elongational viscosity followed by a steady viscosity, in all three materials. This phenomenon was observed at high elongational rates. The steady uni-axial elongational viscosity was about 40-50% less than the maximum in the transient uni-axial elongational viscosity in both the 1840D and the 3020D LDPE melt.

Original language	English
Title of host publication	Proceedings of The XIVth International Congress on Rheology
Editors	Jae Wook Lee and Seung Jong Lee
Publication date	2004
Publication status	Published - 2004
Event	XIV International Congress on Rheology - Seoul, Korea, Republic of Duration: 22 Aug 2004 → 27 Aug 2004 Conference number: 14

Conference

Conference	XIV International Congress on Rheology
Number	14
Country/Territory	Korea, Republic of
City	Seoul
Period	22/08/2004 → 27/08/2004

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@inproceedings{983f2d0c592b432ba6ca626fcb199d67,

title = "Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen",

abstract = "The transient (e.g. start up of) elongational viscosity of three low-density polyethylene (LDPE) melts (BASF Lupolen 1810H, 1840D and 3020D) was measured using a filament stretching rheometer (FSR) capable of measuring at elevated temperatures. The transient uni-axial elongational viscosity showed an overshoot in the transient elongational viscosity followed by a steady viscosity, in all three materials. This phenomenon was observed at high elongational rates. The steady uni-axial elongational viscosity was about 40-50% less than the maximum in the transient uni-axial elongational viscosity in both the 1840D and the 3020D LDPE melt.",

author = "Rasmussen, {Henrik Koblitz} and Ole Hassager and Anders Bach and Nielsen, {Jens Kromann}",

year = "2004",

language = "English",

editor = "{Jae Wook Lee and Seung Jong Lee}",

booktitle = "Proceedings of The XIVth International Congress on Rheology",

note = "XIV International Congress on Rheology ; Conference date: 22-08-2004 Through 27-08-2004",

}

Rasmussen, HK, Hassager, O, Bach, A & Nielsen, JK 2004, Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen. in JWLASJL (ed.), Proceedings of The XIVth International Congress on Rheology. XIV International Congress on Rheology, Seoul, Korea, Republic of, 22/08/2004.

Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen. / Rasmussen, Henrik Koblitz; Hassager, Ole; Bach, Anders et al.
Proceedings of The XIVth International Congress on Rheology. ed. / Jae Wook Lee and Seung Jong Lee. 2004.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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T1 - Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen

AU - Rasmussen, Henrik Koblitz

AU - Hassager, Ole

AU - Bach, Anders

AU - Nielsen, Jens Kromann

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N2 - The transient (e.g. start up of) elongational viscosity of three low-density polyethylene (LDPE) melts (BASF Lupolen 1810H, 1840D and 3020D) was measured using a filament stretching rheometer (FSR) capable of measuring at elevated temperatures. The transient uni-axial elongational viscosity showed an overshoot in the transient elongational viscosity followed by a steady viscosity, in all three materials. This phenomenon was observed at high elongational rates. The steady uni-axial elongational viscosity was about 40-50% less than the maximum in the transient uni-axial elongational viscosity in both the 1840D and the 3020D LDPE melt.

AB - The transient (e.g. start up of) elongational viscosity of three low-density polyethylene (LDPE) melts (BASF Lupolen 1810H, 1840D and 3020D) was measured using a filament stretching rheometer (FSR) capable of measuring at elevated temperatures. The transient uni-axial elongational viscosity showed an overshoot in the transient elongational viscosity followed by a steady viscosity, in all three materials. This phenomenon was observed at high elongational rates. The steady uni-axial elongational viscosity was about 40-50% less than the maximum in the transient uni-axial elongational viscosity in both the 1840D and the 3020D LDPE melt.

M3 - Article in proceedings

BT - Proceedings of The XIVth International Congress on Rheology

A2 - null, Jae Wook Lee and Seung Jong Lee

T2 - XIV International Congress on Rheology

Y2 - 22 August 2004 through 27 August 2004

ER -

Viscosity overshoot followed by steady state measured in uni-axial elongation of LDPE. Ole Hassager, Henrik Koblitz Rasmussen, Anders Bach and Jens Kromann Nielsen

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