Onset of draw resonance during isothermal melt spinning: A comparison between measurements and predictions

Authors

  • C. B. Weinberger,

    1. Department of Chemical Engineering, Drexel University, Philadelphia, Pennsylvania 19104
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  • G. F. Cruz-saenz,

    1. Department of Chemical Engineering, Drexel University, Philadelphia, Pennsylvania 19104
    Current affiliation:
    1. E. I. du Pont de Nemours, Inc., Wilmington, Delaware
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  • G. J. Donnelly

    1. Department of Chemical Engineering, Drexel University, Philadelphia, Pennsylvania 19104
    Current affiliation:
    1. E. I. du Pont de Nemours, Inc., Wilmington, Delaware
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Abstract

Various polymer melts were spun isothermally to determine the critical extensional strain at which draw resonance occurs. Simultaneously, the variation of apparent spinning viscosity with extensional strain was measured. Experimental results failed to confirm the theoretical prediction that strain thickening behavior leads to enhanced stability.

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