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Flow properties of polyethylene melt
Author(s) -
Kataoka Tadao,
Ueda Shigeyuki
Publication year - 1968
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1968.070120426
Subject(s) - materials science , shear stress , shear (geology) , creep , polyethylene , shear flow , shear rate , composite material , capillary action , mechanics , viscosity , flow (mathematics) , high density polyethylene , thermodynamics , physics
Flow properties for low‐density and high‐density polyethylene over a broad range of shear stress are described. Flow equations presented in literatures are tested from the point of view of the extrapolating method for evaluating the zero shear viscosity. It is shown that the method based on the equation of Cross gives relatively good results. The recoverable shear strain calculated from the capillary end correction is practically equal to that determined from the creep experiment at the same shear stress. The effect of shear stress on the elastic property is examined.