Nihon Reoroji Gakkaishi
Online ISSN : 2186-4586
Print ISSN : 0387-1533
ISSN-L : 0387-1533
ORIGINAL ARTICLES
Damping Behavior of Highly Entangled High Density Polyethylene after Uniaxial Step Strains
Takumi KabeyaKatsuyuki YoshikawaJun-ichi HorinakaToshikazu Takigawa
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2015 Volume 43 Issue 1 Pages 11-15

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Abstract

Stress relaxation after a large step strain is conducted for melts of highly entangled high density polyethylene in the uniaxial deformation by a conventional tensile tester. Prior to the stress relaxation tensile tests are made to confirm the uniformity of the elongation. The damping function for the melts in uniaxial deformation is almost identical or close to the prediction by the Doi-Edwards (DE) theory: Stronger damping than the DE prediction, which is often observed for highly entangled polymer melts in shear, is not observed in the uniaxial deformation.

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© 2015 The Society of Rheology, Japan
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