Premium
Relating blow moldability to large amplitude oscillatory shear behavior
Author(s) -
Giacomin A. J.,
Jeyaseelan R. S.,
Stanfill K. O.
Publication year - 1994
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760341104
Subject(s) - materials science , shear (geology) , amplitude , mechanics , composite material , optics , physics
The large amplitude oscillatory shear test has been used to discriminate subtle differences in nonlinear viscoelasticity between two high density polyethyene blow molding resins with different processability. Structural network theory was used to explain the subtle differences in terms of entanglement kinetics with remarkable accuracy. The resin with better shape retention characteristics in programmed parison blow molding was found to have a higher kinetic rate constant for molecular re‐entanglement.