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  • 1
    Electronic Resource
    Electronic Resource
    Shear flow rheological properties of vinylon- and glass-fiber reinforced polyethylene melts (1984)
    Springer
    Rheologica acta 23 (1984), S. 20-30 
    Details
    ISSN: 1435-1528
    Keywords: Viscosity ; first normal-stress difference ; fiber filled polymer melt ; glass fiber ; vinylon fiber
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01333872
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamic flow properties of vinylon fibre and glass fiber reinforced polyethylene melts (1984)
    Springer
    Rheologica acta 23 (1984), S. 408-416 
    Details
    ISSN: 1435-1528
    Keywords: Fiber-filled polyethylene melt ; glass fiber ; vinylon fiber ; dynamic flow properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract An experimental study of the dynamic shear flow properties of polyethylene melts filled with glass fibers and vinylon fibers was carried out and comparison with the steady shear flow properties was made. The effects of loading level and the characteristics of the fibers on the rheological properties of the fiber-filled systems is discussed. The rigidity and complex viscosity of the fiber-filled systems is sensitive not only to the quantity of fibers but also to their length, distribution and properties. The Cox-Merz empirical law for complex viscosity and steady shear viscosity, and Roscoe's empirical relation for estimating the normal-stress coefficients are both able to be applied to pure polymer melts but not to fiber-filled systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01329193
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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