Dewetting of a thin polymer film under shear
| hal.structure.identifier | Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM] | |
| dc.contributor.author | KADRI, Kheireddin | |
| hal.structure.identifier | Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM] | |
| dc.contributor.author | PEIXINHO, Jorge | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | SALEZ, Thomas | |
| hal.structure.identifier | Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM] | |
| dc.contributor.author | MIQUELARD-GARNIER, Guillaume | |
| hal.structure.identifier | Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM] | |
| dc.contributor.author | SOLLOGOUB, Cyrille | |
| dc.date.issued | 2021-10-19 | |
| dc.identifier.issn | 0032-3861 | |
| dc.description.abstractEn | The objective of this work is to give new insight into the stability of thin polymer films under shear, in order to pave the way to a better control of the nanolayer coextrusion process. To do so, a finite-difference numerical scheme for the resolution of the thin film equation was set up taking into account capillary and van der Waals (vdW) forces. This method was validated by comparing the dynamics obtained from an initial harmonic perturbation to established theoretical predictions. With the addition of shear, three regimes have then been evidenced as a function of the shear rate. In the case of low shear rates the rupture is delayed when compared to the no-shear problem, while at higher shear rates it is even suppressed: the perturbed interface goes back to its unperturbed state over time. In between these two limiting regimes, a transient one in which shear and vdW forces balance each other, leading to a non-monotonic temporal evolution of the perturbed interface, has been identified. While a linear analysis is sufficient to describe the rupture time in the absence of shear, the nonlinearities appear to be essential otherwise. | |
| dc.description.sponsorship | Mouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Polymers and Plastics | |
| dc.subject.en | Materials Chemistry | |
| dc.subject.en | Organic Chemistry | |
| dc.title.en | Dewetting of a thin polymer film under shear | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.polymer.2021.124283 | |
| dc.subject.hal | Sciences de l'ingénieur [physics] | |
| bordeaux.journal | Polymer | |
| bordeaux.page | 124283 | |
| bordeaux.volume | 235 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03430865 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03430865v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polymer&rft.date=2021-10-19&rft.volume=235&rft.spage=124283&rft.epage=124283&rft.eissn=0032-3861&rft.issn=0032-3861&rft.au=KADRI,%20Kheireddin&PEIXINHO,%20Jorge&SALEZ,%20Thomas&MIQUELARD-GARNIER,%20Guillaume&SOLLOGOUB,%20Cyrille&rft.genre=article |
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