6533b7dafe1ef96bd126e965
RESEARCH PRODUCT
Transient birefringence of polymer melts in intermittent shear flow: Model analysis of the non-linear viscoelastic behaviour
H. Janeschitz-krieglB. De CindioF. H. GortemakerD. Aciernosubject
chemistry.chemical_classificationShearing (physics)Materials scienceBirefringenceThermodynamicsPolymerCondensed Matter PhysicsViscoelasticityCondensed Matter::Soft Condensed MatterPhysics::Fluid DynamicsTransient flowShear rateNonlinear systemchemistryGeneral Materials ScienceShear flowdescription
A non-linear viscoelastic model has been used to interpret transient flow birefringence in changing shear flow for a polymer melt. It is shown how the new model is consistent with the basic hypothesis of the linear stress-optical law. Stress growth in shear flow and relaxation after different amounts of shearing are compared with the predictions of the non-linear model. A good agreement between experimental data and theoretical predictions is found.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1977-09-01 | Rheologica Acta |