Rheology Of Plastics

Rheology describes the flow and deformation of materials. Plastics in particular are characterized by their special flow behavior. The viscosity of plastics is not only dependent on temperature and pressure, but also on the flow velocity. This flow behavior, known as structural viscosity, is clearly described in this textbook. In addition, due to their molecular chain structure, plastics have visco-elastic properties that affect the flow processes. Understanding of all of these aspects is highly important for developing and maintaining effective, reliable, efficient, and economical plastics processing procedures to produce high-quality products. In this book, firstly different measurement methods that are suitable for measuring these properties are presented and their measurement results are also discussed. The laws that describe the special flow behavior of plastics are then explained. After deriving the flow equations, these are then used to calculate flow processes for the...