Foaming of thermoplastics is an area of significant research interest. The substitution of any
solid polymer with its foamed counterparts not only results in the lowering of material and …

Rheological behavior of polymeric liquids has been considered to be universally determined
by a few time-independent molecular parameters (such as the Rouse relaxation time and …

We provide a Perspective on recent findings in extensional rheology for polymer melts and
solutions with different macromolecular architectures. For linear polymer systems, we focus …

Extensional viscosity of several polypropylene polymers and their blends was measured
and the foam processing of these blends using carbon dioxide blowing agent was studied …

The modelling of molecular entanglement in polymeric materials is an old problem, and has
evolved gradually over the last 60 years, with two key approaches: the network model of …

We review constitutive modeling of solutions and melts of linear polymers, focusing on
changes in rheological behavior in shear and extensional flow as the concentration …

In this work, a chain extender (CE) was added to polylactide (PLA) to improve its foamability.
The steady and transient rheological properties of neat PLA and CE-treated PLA revealed …

Strain hardening of polymer melts is able to improve the uniformity of items in processing
operations with elongational deformation. Of particular interest in this aspect is the …

As researchers seek replacements for banned, ozone-depleting foaming agents, the authors
of Thermoplastic Foam Processing: Principles and Development strive to develop a better …

The damping function has been a concept introduced in rheology since more than 30 years
ago, and although a similar concept was already earlier implemented in studying rubber …