Viscoelastic behaviour of polymer melts in uniaxial extension flow

Viscoelastic behaviour of polymer melts in uniaxial extension flow

Autori: V.C. Barroso, J.M. Maia, A.J. Franck, D. Mead
Presentato al: Southern Europe Conference on Rheology
Anno: 1999
Volume: 1 - Issue: Unico
Casa Editrice: SIR-Cuen Napoli
Lingua: English

Abstract
An attempt to characterise the viscoelastic behaviour of polymer melts in extensional uniaxial flow is described, a modification made to a commercial rotational rheometer being used in order to investigate the behaviour of polyisobutylene (PIB) samples. Stress relaxation experiments were made in order to characterise the linear and non-linear viscoelastic regime in extension. The results show that it is possible to predict strain hardening observed in extension, as well as the relative importance of the viscous and elastic components on each of the viscoelastic regimes.

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XVIII Italian Society of Rheology Conference

Capri Island, Naples, Italy 12-14 septemper 2024

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The XVIII edition of the SIR conference will be held in Villa Rosa, a recently renovated ancient Neapolitan villa in Capri Island (Naples, Italy), in September 12th-14th 2024. The event will be organised with the support of the Department of Chemical, Materials and Industrial Production Engineering of the University of Naples Federico II.

All those with an interest in rheology, in all its aspects, are invited to submit contributions.

Selected papers will be eligible for a special issue in Rheologica Acta.

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