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Solid State Rheological Properties of Ultra‐High Molecular Weight Polyethylene Foams
Author(s) -
Rodrigue Denis,
Zhang Zhijie,
AïtKadi Abdellatif
Publication year - 2002
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450800624
Subject(s) - rheometry , high density polyethylene , rheology , materials science , polyethylene , viscoelasticity , composite material , low density polyethylene , linear low density polyethylene , ultra high molecular weight polyethylene
The rheological properties of ultra‐high‐molecular‐weight polyethylene (UHMWPE) foams were studied using solid state rheometry. Frequency and temperature sweeps were performed in the linear viscoelastic regime. For comparison purposes, low‐density polyethylene (LDPE) and high density polyethylene (HDPE) foams were also studied. For the range of densities under consideration (200‐700 kg/m 3 ), several models for prediction of elastic moduli were compared. It was found that none of the models succeeded in representing completely the mechanical behavior of foams. Further refinements must be made in order to take into account parameters relating the morphology of the foam to its mechanical properties.