Abstract
Various viscoelastic material functions of BAMO/AMMO based thermoplastic elastomer melt were characterized using small amplitude oscillatory shear, step strain and steady torsional flows. The relaxation spectrum and relaxation modulus data were used to fit the parameters of a K-BKZ type integral nonlinear viscoelastic constitutive equation. The predictions of the constitutive equation were compared with the results of other viscometric experiments, including shear stress growth and relaxation, and were found to agree. The use of the constitutive equation to predict especially the shear viscosity material function over a broad range of temperatures and shear rates, i.e., to enable calculations regarding the processability of the thermoplastic elastomer in various molding and extrusion processes to be made, was also demonstrated.
Original language | English |
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Pages | 3411-3417 |
Number of pages | 7 |
State | Published - 1997 |
Event | Proceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3) - Toronto, Can Duration: 27 Apr 1997 → 2 May 1997 |
Conference
Conference | Proceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3) |
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City | Toronto, Can |
Period | 27/04/97 → 2/05/97 |