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Published in:
2020 | OriginalPaper | Chapter
4. Rheology in Processing of Polymeric Composites
Authors : Anup K. Ghosh, Mayank Dwivedi
Published in: Processability of Polymeric Composites
Publisher: Springer India
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Abstract
Processing polymer composites is quite ubiquitous in the domain of polymer engineers. The true aspects of polymer processing have a direct correlation with rheological properties of the material concerned. The fundamental concept behind the theory of rheology dates back to the basic definition of work being done, which is dependent on two important parameters, notably force and its corresponding displacement.
$$ W=F\cdot d $$
The force that is needed to displace a material from its coordinates and its centre of gravity to a new set of coordinates needs to overcome a resistance against the material to move from its position of inertia. Relating to Newton’s first law of motion, this resistance is the principal parameter that governs this entire theory. The work done corresponds to the energy that is needed to displace the body, which also goes hand in hand with the parameter known as resistance.