Rheological and Thermophysical Properties of Polymers

The Polymer Processing Institute, New Jersey Institute of Technology Newark, NJ 

The thermophysical properties, such as glass transition, specific heat, melting point, and the crystallization temperature of virgin polymers are by-and-large available in the literature. However, the thermal conductivity or diffusivity, especially in the molten state, is not readily available, and values reported may differ due to experimental difficulties. The density of the polymer, or more generally, the pressure-volume-temperature (PVT) diagram, is also not readily available and the data are not easily convertible to simple analytical form. Thus, simplification or approximations have to be made to obtain a solution to the problem at hand. 

The typical CAD software for injection molding may need the following properties to carry out a simulation  

For the CAD software of the extrusion processes, in addition to these properties, the following are required  

Principles of Polymer Processing, Second Edition, by Zehev Tadmor and Costas G. Gogos. Copyright 2006 John Wiley Sons, Inc. 

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