Mechanical aspects of fibre spinning process in molten polymers

Ziabicki, Andrzej; Kedzierska, Krystyna

doi:10.1007/bf01520042

Cited by 50 publications

(20 citation statements)

References 3 publications

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“…where Fl is given by eq. (19). Equation (39) has the solution where the representation of is considered and f ( ) and g( ) are arbitrary functions.…”

Section: Newtonian Fluidmentioning

confidence: 99%

Instabilities and failure in elongational flow and melt spinning of fibers

White

Ide

1978

J of Applied Polymer Sci

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SynopsisA theoretical and experimental study of instability and failure behavior during melt spinning is presented. From an analysis of system dynamics, draw resonance is shown to be a continuous processing analogue of ductile failure. Using viscoelastic fluid mechanics and the White-Metzner constitutive model, it is shown that melts which exhibit ductile failure in elongational flow tend to show draw resonance in melt spinning. Deformation hardening melts exhibit cohesive fracture in elongational flow and melt-spinning processes.

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“…where Fl is given by eq. (19). Equation (39) has the solution where the representation of is considered and f ( ) and g( ) are arbitrary functions.…”

Section: Newtonian Fluidmentioning

confidence: 99%

Instabilities and failure in elongational flow and melt spinning of fibers

White

Ide

1978

J of Applied Polymer Sci

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“…Though melt spinning was developed commercially by Du Pont in the 193O's, only in the last 25 years have mathematical models been developed for melt spinning. Ziabicki andKedzierska (1960, 1961), Ziabicki (1961), Kase and Matsuo (l965), and Matovich and Pearson (1969) developed the basic momentum. continuity, and energy balances that apply to a spinning threadline.…”

Section: Introductionmentioning

confidence: 99%

Melt blowing: General equation development and experimental verification

Uyttendaele¹,

Shambaugh²

1990

AIChE Journal

138

197

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A model has been developed for steady polymer melt blowing. This model includes the dominant effect that the forwarding air has upon the process. Inertial, gravitational and heat transfer effects are also included. The model equations are solved numerically with both Newtonian and viscoelastic (Phan-Thien and Tanner) constitutive equations. The predicted results compare favorably with actual experimental data.

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“…If the abrupt elastic deformation of materials at the entrance to the capillary results in the Barus effect, a more preferable a parameter for representing the Barus effect is [5][6]:…”

Section: Die Swell Of Unfilled Polymersmentioning

confidence: 99%

Die swell of filled polymer melts

Nishimura

Kataoka

1984

Rheol Acta

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The Barus effect in polypropylene and polystyrene blended with a variety of fillers at various concentrations was investigated using a capillary extrusion rheometer. If the die swell c~ is defined as the square of the ratio of the extrudate diameter d to the die diameter D, it is found to depend on the apparent shear stress r'w. Below a certain value of V' w the relation ~ = B v~ applies. The die swell, c~ M, of a filled polymer depends on the type, size and volume fraction of the filler. In particular, A increases as the volume fraction increases and is largest for powders, smaller for flakes and smallest for fibres, whereas B shows the opposite trend but to a lesser extent.

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Mechanical aspects of fibre spinning process in molten polymers

Cited by 50 publications

References 3 publications

Instabilities and failure in elongational flow and melt spinning of fibers

Instabilities and failure in elongational flow and melt spinning of fibers

Melt blowing: General equation development and experimental verification

Die swell of filled polymer melts

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