Ali Rizvi

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Questions related from Ali Rizvi

Why do linear and branched polymers of similar shear viscosity exhibit markedly different extensional viscosity?

In extensional flows of linear and long-chain-branched polyolefin melts with similar shear rheology, the branched polymers are found to exhibit significantly enhanced strain hardening in transient...

03 June 2019 2,005 2 View

What techniques are used to increase the Trouton ratio of polymer melts?

Are there any techniques to increase the extensional viscosity and/or decrease the shear viscosity (ideally simultaneously) thereby increasing the Trouton ratio?

21 February 2018 1,548 4 View