Conclusions
The effect of the viscoelastic properties of the polyethylene on the rheological properties of a PET-PE melt has been determined.
For the investigated melts of PET-PE mixtures, there is a correlation between the degree of jet expansion and the melt index in the very same concentration range, and this is destroyed in the region of phase inversion.
Melts of PET-PE polymer mixtures, for which lower viscosity anomaly indices and degree of jet expansion are characteristics, are capable of fibre formation.
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Additional information
Translated from Khimicheskie Volokna, No. 2, pp. 21–23, March–April, 1986.
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Gerasimchuk, A.A., Romankevich, O.V. & Aizenshtein, É.M. Rheological and fibre-forming properties of melts polyethylene-polyethylene terephthalate mixtures. Fibre Chem 18, 90–93 (1986). https://doi.org/10.1007/BF00549618
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DOI: https://doi.org/10.1007/BF00549618