| 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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Peters, Gwm Gerrit
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (39/39 displayed)
- 2022An experimentally validated model for quiescent multiphase primary and secondary crystallization phenomena in PP with low content of ethylene comonomercitations
- 2020Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites
- 2020A filament stretching rheometer for in situ X-ray experimentscitations
- 2019Influence of post-condensation on the crystallization kinetics of PA12:from virgin to reused powder
- 2019Modelling flow induced crystallization of IPPcitations
- 2019In Situ WAXD and SAXS during tensile deformation of moulded and sintered polyamide 12citations
- 2019Influence of post-condensation on the crystallization kinetics of PA12citations
- 2018Structure-properties relations for polyamide 6, part 2citations
- 2018Thin film mechanical characterization of UV-curing acrylate systemscitations
- 2018Thin film mechanical characterization of UV-curing acrylate systems
- 2018Structure-properties relations for polyamide 6, part 2:Influence of processing conditions during injection moulding on deformation and failure kineticscitations
- 2017Glass transition temperature versus structure of polyamide 6:A flash-DSC studycitations
- 2017Glass transition temperature versus structure of polyamide 6citations
- 2017Deformation and failure kinetics of iPP polymorphscitations
- 2016The prediction of mechanical performance of isotactic polypropylene on the basis of processing conditionscitations
- 2015Flow-induced solidification of high-impact polypropylene copolymer compositions : morphological and mechanical effectscitations
- 2015Flow-induced solidification of high-impact polypropylene copolymer compositions : morphological and mechanical effects
- 2013Anisotropic yielding of injection molded polyethylene: experiments and modelingcitations
- 2012Quantification of non-isothermal, multi-phase crystallization of isotactic polypropylene : the influence of shear and pressurecitations
- 2012Quantification of non-isothermal, multi-phase crystallization of isotactic polypropylene : the influence of shear and pressure
- 2012Rate-, temperature-, and structure-dependent yield kinetics of isotactic polypropylenecitations
- 2012Quantification of non-isothermal, multi-phase crystallization of isotactic polypropylene: the influence of cooling rate and pressure
- 2011Linear shear response of the upper skin layerscitations
- 2010Micromechanical modeling of the elastic properties of semicrystalline polymers: a three-phase approachcitations
- 2010Residual stresses in gas-assisted injection moldingcitations
- 2010Molar mass and molecular weight determination of UHMWPE synthesized using a living homogenous catalystcitations
- 2009A novel dilatometer for PVT measurements of polymers at high cooling - and shear ratescitations
- 2009Volumetric rheology of polymers: The influence of shear flow, cooling rate and pressure on the specific volume of iPP and P/E random copolymerscitations
- 2009Model development and validation of crystallization behavior in injection molding prototype flowscitations
- 2008Transient interfacial tension of partially miscible polymerscitations
- 2008Suspension-based rheological modeling of crystallizing polymer meltscitations
- 2008Flow induced crystallization in iPP-DMDBS blends: implications on morphology of shear and phase separationcitations
- 2008Thermoreversible DMDBS Phase Separation in iPP: The Effects of Flow on the Morphologycitations
- 2006Influence of interfacial tension on the morphology of polymer blends
- 2005The influence of cooling rate on the specific volume of isotactic poly(propylene) at elevated pressures
- 2004Structure, deformation, and failure of flow-oriented semicrystalline polymerscitations
- 2004Structure, deformation, and failure of flow-oriented semicrystalline polymers
- 2002The matching of experimental polymer processing flows to viscoelastic numerical simulation
- 2001A 3-D finite element model for gas-assisted injection molding - simulations and experiments
Places of action
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article
Thin film mechanical characterization of UV-curing acrylate systems
Abstract
This study presents the mechanical characterization of UV-curing acrylate systems. UV-curable polymers are commonly used in the stereolithography (SLA) technique to build multi-layered objects. Typically, the mechanical properties of the 3D-printed product are affected by the intrinsic material heterogeneity along the sample thickness. To understand what determines this heterogeneity, single layers of UV-curable polymer are characterized and the effect of process conditions on the mechanical properties is studied. Micro-compression experiments are carried out to determine the intrinsic mechanical properties which are representative of one single UV-cured layer. To determine the right conditions to generate maximally-cured micropillars, the evolution with irradiation time of monomer conversion, glass-transition temperature and yield stress has first been studied. Thereto, micrometer-sized pillars and dog-bone shaped samples have been prepared via UV-curing. Micro-compression measurements on maximally-cured micropillars are performed to study possible size effects. The results reveal that with decreasing pillar size, the yield stress decreases. Tensile measurements are performed on dog-bone shaped samples which have been processed in the same way as compared to the compression samples. These tensile tests show higher yield stress values when compared with compression tests. This size effect can be attributed to the rinsing with acetone during the sample preparation that leads to a removal of monomer from the crosslinked network. As a consequence, in the real 3D-printing process, the mechanical properties will depend on the feature size. In conclusion, a method is presented to determine the mechanical properties of one single layer of material used in the rapid-prototyping SLA process. The experimental procedure we adopted requires only a few millilitres of material and, therefore, is well suited for screening materials under real SLA process conditions.