Abstract
The dynamics and stability of the high-speed fiber spinning process with spinline flow-induced crystallization and neck-like deformation have been studied using a simulation model equipped with governing equations of continuity, motion, energy, and crystallinity, along with the Phan-Thien–Tanner constitutive equation. Despite the fact that a simple one-phase model was incorporated into the governing equations to describe the spinline crystallinity, as opposed to the best-known two-phase model [Doufas et al. J Non-Newton Fluid Mech, 92:27–66, 2000a]; [Kohler et al. J Macromol Sci Phys, 44:185–202, 2005] that treats amorphous and crystalline phases separately in computing the spinline stress, the simulation has successfully portrayed the typical nonlinear characteristic of the high-speed spinning process called neck-like spinline deformation. It has been found that the criterion for the neck-like deformation to occur on the spinline is for the extensional viscosity to decrease on the spinline, so that the spinning is stabilized by the formation of the spinline neck-like deformation. The accompanying linear stability analysis explains this stabilizing effect of the spinline neck-like deformation, corroborating a recent experimental finding [Takarada et al. Int Polym Process, 19:380–387, 2004].
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References
Chen S, Yu W, Spruiell JE (1987) Structure and properties of high-speed melt-spun filaments of poly(butylene terephthalate). J Appl Polym Sci 34:1477–1492
Doufas AK, McHugh AJ, Miller C (2000a) Simulation of melt spinning including flow-induced crystallization — part I. Model development and predictions. J Non-Newton Fluid Mech 92:27–66
Doufas AK, McHugh AJ, Miller C, Immaneni A (2000b) Simulation of melt spinning including flow-induced crystallization — part II. Quantitative comparisons with industrial spinline data. J Non-Newton Fluid Mech 92:81–103
Fisher RJ, Denn MM (1976) Theory of isothermal melt spinning and draw resonance. AIChE J 22:236–241
Gelder D (1971) Stability of fiber drawing processes. Ind Eng Chem Fundam 10:534–535
Haberkorn H, Hahn K, Breuer H, Dorrer HD, Matthies P (1993) On the neck-like deformation in high-speed spun polyamides. J Appl Polym Sci 47:1555–1579
Joo YL, Sun J, Smith MD, Armstrong RC, Brown RA, Ross RA (2002) Two-dimensional numerical analysis of non-isothermal melt spinning with and without phase transition. J Non-Newton Fluid Mech 102:37–70
Jung HW, Song HS, Hyun JC (1999) Analysis of the stabilizing effect of spinline cooling in melt spinning. J Non-Newton Fluid Mech 87:165–174
Kikutani T, Morinaga H, Takaku A, Shimizu J (1990) Effect of spinline quenching on structure development in high-speed melt spinning of PET — diameter profiles in the spinline. Int Polym Process 5:20–24
Kohler WH, Shrikhande P, McHugh AJ (2005) Modeling melt spinning of PLA fibers. J Macromol Sci Phys 44:185–202
Kulkarni JA, Beris AN (1998) A model for the necking phenomenon in high-speed fiber spinning based on flow-induced crystallization. J Rheol 42:971–994
Lee JS, Shin DM, Jung HW, Hyun JC (2005) Transient solutions of the dynamics in low-speed fiber spinning process accompanied by flow-induced crystallization. J Non-Newton Fluid Mech 130:110–116
Muslet IA, Kamal MR (2004) Computer simulation of the film blowing process incorporating crystallization and viscoelasticity. J Rheol 48:525–550
Patel RM, Bheda JH, Spruiell JE (1991) Dynamics and structure development during high-speed melt spinning of nylon-6-2. Mathematical modeling. J Appl Polym Sci 42:1671–1682
Phan-Thien N (1978) A nonlinear network viscoelastic model. J Rheol 22:259–283
Raghavan JS, Cuculo JA (1999) Analysis of necking in high-speed spinning. J Polym Sci B Polym Phys 37:1565–1573
Shin DM, Lee JS, Jung HW, Hyun JC (2005) Analysis of the effect of flow-induced crystallization on the stability of low-speed spinning using the linear stability method. Kor Aust Rheol J 17:63–69
Takarada W, Kazama K, Ito H, Kikutani T (2004) High-speed melt spinning of polyethylene terephthalate with periodic oscillation of take-up velocity. Int Polym Process 19:380–387
Ziabicki A (1976) Fundamentals of fibre formation. Wiley-Interscience, New York
Ziabicki A (1988) The mechanisms of neck-like deformation in high-sped melt spinning — 1. Rheological and dynamics factors. J Non-Newton Fluid Mech 30:141–155
Ziabicki A, Kawai H (1985) High-speed fiber spinning. Wiley, New York
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This study was supported by research grants from the Korea Science and Engineering Foundation (KOSEF) through the Applied Rheology Center, an official KOSEF-created engineering research center at Korea University, Seoul, Korea.
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Shin, D.M., Lee, J.S., Jung, H.W. et al. High-speed fiber spinning process with spinline flow-induced crystallization and neck-like deformation. Rheol Acta 45, 575–582 (2006). https://doi.org/10.1007/s00397-006-0100-8
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DOI: https://doi.org/10.1007/s00397-006-0100-8