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Shear flow rheological properties of vinylon- and glass-fiber reinforced polyethylene melts

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Abstract

Shear viscosity, shear stress and first normal-stress difference have been investigated for glass- and vinylon-fiber filled polyethylene melts over a wide range of shear rate by means of three kinds of instruments. The influence of fiber content and fiber properties on the rheological properties is discussed. The viscosity increases with increasing aspect ratio and fiber content, and the influence of these parameters on the flow properties is evident at low shear rates. The first normalstress difference increases more rapidly with increasing glass fiber content, especially at low shear stresses. The influence of vinylon fibers on the first normal stress-difference vs. shear-stress relationship is different from that of glass fibers.

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Kitano, T., Kataoka, T. & Nagatsuka, Y. Shear flow rheological properties of vinylon- and glass-fiber reinforced polyethylene melts. Rheol Acta 23, 20–30 (1984). https://doi.org/10.1007/BF01333872

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  • DOI: https://doi.org/10.1007/BF01333872

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