Shear and extensional rheology of polypropylene melts: Experimental and modeling studies

@inproceedings{Doufas2011ShearAE,
  title={Shear and extensional rheology of polypropylene melts: Experimental and modeling studies},
  author={Antonios K. Doufas and Leon Rice and William C. Thurston},
  year={2011}
}
Non-linear correlations are found between the melt strength and fundamental shear flow properties such as low frequency loss tangent, crossover frequency, and zero-shear-rate viscosity for a series of polypropylene (PP) melts. The very good non-linear correlations suggest rheotens as a reliable rheological test to characterize extensional rheology relevant to fabrication, despite its non-homogeneous and non-isothermal flow kinematics. The rheotens model of Doufas [J. Rheol. 50, 749–769 (2006… CONTINUE READING