Simulation of Multifilament Semicrystalline （模拟复丝半晶质）.pdfVIP

Simulation of Multifilament Semicrystalline Polymer Fiber Melt-Spinning Young-Pyo Jeon, Christopher L. Cox Mathematical Sciences, Clemson University, Clemson, South Carolina, USA Correspondence to: Christopher L. Cox, email: clcox@ ABSTRACT clearer understanding of the fiber spinning process, The goal of this effort is to provide an accurate allowing both troubleshooting for existing systems simulation of multifilament fiber melt spinning, and improved process design. Examples along with a applicable for a wide range of material and process review of early fiber spinning models can be found in conditions. For ease of use, the model should run on [2]. Simulations of multifilament spinning of PET a standard laptop or desktop computer in reasonable fibers, based on a Newtonian constitutive model, are time (one hour or less). Most melt spinning models described in [3], [4], and [5]. simulate the formation of a single filament, with little or no attention given to multifilament effects. Available multifilament simulations are primarily limited to Newtonian constitutive models for the polymer flow. We present a multifilament simulation based on the flow-enhanced crystallization approach of Shrikhande et al. [J. Appl. Polym. Sci., 100, 2006, 3240-3254] combined with a variant on the multifilament quench model of Zhang, et al. [J. Macromol. Sci. Phys., 47, 2007, 793-806]. We de