Abstract
The filament stretching device which is used increasingly as an apparatus for measuring extensional properties of polymeric liquids is analysed. A force balance that includes the effects of inertia and surface tension is derived. The force balance may be used to correct for the effects of inertia and surface tension, provided online measurements of the filament surface shape are available. In addition, the question of initial asymmetry due to gravity is addressed.
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References
Berg S, Kröger R, Rath HJ (1994) Measurement of extensional viscosity by stretching large liquid bridges in microgravity. J Non-Newtonian Fluid Mech 55:307–319
Bird RB, Armstrong RC, Hassager O (1987) Dynamics of polymeric liquids. Vol. 1. Fluid mechanics, 2 ed. John Wiley & Sons, New York
Boger DV (1977/1978) A highly elastic constant-viscosity fluid. J Non-Newtonian Fluid Mech 3:87–91
Chang H, Lodge AS (1972) Comparison of rubberlike-liquid theory with stress-growth data for elongation of a low-density branched polyethylene melt. Rheol Acta 11:127–129
Coleman BD, Noll W (1962) Steady extension of incompressible simple fluids. Phys Fluids 5:840–843
Kolte MI, Rasmussen HK, Hassager O (1997) Transient filament stretching theometer II: numerical simulation. Rheol Acta 36:285–302
Kröger R, Berg S, Delgado A, Rath FU (1992) Stretching behaviour of large polymeric and Newtonian liquid bridges in plateau simulation. J Non-Newtonian Fluid Mech 45:385–400
Landau LD, Lifshitz EM (1987) Fluid mechanics. Pergamon, Oxford
Matta JE, Tytus RP (1990) Liquid stretching using a falling cylinder. J Non-Newtonian Fluid Mech 35:215–229
Papanastasiou AC, Scriven LE, Macosko CW (1983) An integral constitutive equation for mixed flows: Viscoelastic characterization. J Rheol 27:387–410
Quinzani LM, McKinley GH, Brown RA, Armstrong RC (1990) Modeling the rheology of polyisobutylene solutions. J Rheol 34:705–748
Solomon MJ, Mullet SJ (1996) The transient extensional behavior of polystyrene-based Boger fluids of varying solvent quality and molecular weight. J Rheol 40:837–856
Spiegelberg SH, Ables DC, McKinley GH (1996) The role of end-effects on measurements of extensional viscosity in filament stretching rheometers. J Non-Newtonian Fluid Mech 64:229–267
Spiegelberg SH, McKinley GH (1996) Stress relaxation and elastic breakup of viscous polymer solutions in extensional flow. J Non-Newtonian Fluid Mech 67:49–76
Sridhar T, Tirtaatmadja V, Nguyen DA, Gupta RK (1991) Measurement of extensional viscosity of polymer solutions. J Non-Newtonian Fluid Mech 40:271–280
Tirtaatmadja V, Sridhar T (1993) A filament stretching device for measurement of extensional viscosity. J Rheol 37:1081–1102
Van Nieuwkoop J, Muller von Czernicki MMO (1996) Elongation and subsequent relaxation measurements on dilute polyisobutylene solutions. J Non-Newtonian Fluid Mech 67:105–123
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Dedicated to Prof. John D. Ferry on the occasion of his 85th birthday.
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Szabo, P. Transient filament stretching rheometer. Rheola Acta 36, 277–284 (1997). https://doi.org/10.1007/BF00366669
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DOI: https://doi.org/10.1007/BF00366669