| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tervoort, Theo A.
ETH Zurich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024No yield stress requiredcitations
- 2023Evaluating the molecular weight distribution of ultrahigh molecular weight polypropylene through rheologycitations
- 2022Additive Manufacturing of Polyolefinscitations
- 2022Influence of electron-beam irradiation on plasticity-controlled and crack-growth-controlled failure in high-density polyethylenecitations
- 2022Influence of electron-beam irradiation on plasticity-controlled and crack-growth-controlled failure in high-density polyethylenecitations
- 2019Surface viscoelasticity in model polymer multilayerscitations
- 2018Three-dimensional printing of hierarchical liquid-crystal-polymer structurescitations
- 2017Modeling energy storage and structural evolution during finite viscoplastic deformation of glassy polymerscitations
- 2016High-performance liquid-crystalline polymer films for monolithic "composites"citations
- 2016Rejuvenation of PLLA: effect of plastic deformation and orientation on physical ageing in poly(ʟ-lactic acid) filmscitations
- 2008Does the strain hardening modulus of glassy polymers scale with the flow stress?citations
- 2008Kinetics of re-embrittlement of (anti)plasticized glassy polymers after mechanical rejuvenationcitations
- 2002Microcutting materials on polymer substrates
- 2000Strain-hardening behavior of polycarbonate in the glassy statecitations
Places of action
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article
Influence of electron-beam irradiation on plasticity-controlled and crack-growth-controlled failure in high-density polyethylene
Abstract
<p>In the present study, the influence of electron-beam irradiation on plasticity-controlled and crack-growth-controlled failure in high-density polyethylene (HDPE) is investigated and the effect of both molecular weight distribution (MWD) and short chain branching (SCB) content are taken into account. Size exclusion chromatography (SEC) is used to study the evolution of the MWD of the sol fraction as a function of irradiation dose. Here, it is seen that chains shorter than the percolation threshold (5 kDa) are largely unaffected by electron beam radiation, while the fraction of longest chains (M > 300 kDa) is nearly entirely incorporated into the cross-linked network. Both yield stress and Young's modulus increased with irradiation dose, where the magnitude of the increase appears to be connected to the gel fraction. The (fatigue) crack growth kinetics of the grades changed relatively little with irradiation dose, which is unexpected. Furthermore, convergence of the crack growth kinetics parameter to a narrow range of values could be observed for the investigated grades at relatively high gel fractions. This would imply that the crack growth kinetics become increasingly independent of the MWD upon irradiation cross-linking, which could be attributed to a shift in the underlying crack growth mechanism from chain slip to chain scission.</p>