Manifestations of non-linear viscoelasticity
Non-linear Viscoelasticity of Polymer Melts

Article REF: AM3630 V2

Manifestations of non-linear viscoelasticity
Non-linear Viscoelasticity of Polymer Melts

Author : Christian CARROT

Publication date: October 10, 2020 | Lire en français

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1. Manifestations of non-linear viscoelasticity

The viscoelastic behaviour of polymers combined with large deformations can induce, in the case of fluids made of molten polymers, a set of specific phenomena of which the best known are swelling at the die exit, the presence of recirculations at the entrance to contractions, the Weissenberg effect and high elongational viscosity.

1.1 Swelling

Figure

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Bibliography

(1) - BOGER (D.-V.), WALTERS (K.) - Rheological phenomena in focus (Les phénomènes rhéologiques). - Rheology Series, Elsevier Science Publishers, 4, 156 p. (1993).
(2) - COUARRAZE (G.), GROSSIORD (J.-L.), HUANG (N.) - Initiation à la rhéologie....

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