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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Applied Mathematics Seminars: Modelling the rheology of long chain polymer melts

Presented by David Hoyle, Durham University

5 May 2017 14:00 in CM219

Rheology is the study of flowing complex materials that usually have a stress response governed by the presence of some microstructure within the material.

In my talk I will discuss the rheology of long chain polymers that entangle with themselves. I will show how coarse-grained models of these entangled polymer melts are necessary in order to characterise experimental measurements and hence deduce material microstructure. Furthermore, I will talk about a the work done on a recent impact funding award in collaboration with an adhesives company, Henkel. Henkel’s problem is one of formulation, whereby there are thousands of degrees of freedom to consider when making a particular adhesive. The company needs to be able to predict how a particular formulation of adhesive will flow in the process they use to stick two films together. We used the models of entangled polymers in combination with 2D finite element simulations to predict if a given material would successfully survive the industrial process, i.e., that flow instabilities would not be a significant feature of the flow.

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