| 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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Cardon, Ludwig
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2024Designing prepregnation and fused filament fabrication parameters for recycled PP- and PA-based continuous carbon fiber compositescitations
- 2024Bridging experimental data and flow modelling to maximize the lifetime of additive manufactured molds
- 2024Optimization of the 3D printing process of continuous carbon fiber prepreg filamentcitations
- 2024Impact of resin density and short-chain branching distribution on structural evolution and enhancement of tensile modulus of MDO-PE filmscitations
- 2024Playing with low amounts of expanded graphite for melt-processed polyamide and copolyester nanocomposites to achieve control of mechanical, tribological, thermal and dielectric propertiescitations
- 2024Advanced Composites Manufacturing and Plastics Processing
- 2024Upgrading analytical models to predict the onset of degradation in selective laser sinteringcitations
- 2023Comparing thermal degradation for fused filament fabrication (FFF) with chain or step-growth polymers
- 2023Molecular pathways for polymer degradation during conventional processing, additive manufacturing, and mechanical recyclingcitations
- 2023Carbon nitride grafting modification of poly(lactic acid) to maximize UV protection and mechanical properties for packaging applicationscitations
- 2023Impact of Multiple Reprocessing on Properties of Polyhydroxybutyrate and Polypropylenecitations
- 2022Setting the optimal laser power for sustainable powder bed fusion processing of elastomeric polyesters : a combined experimental and theoretical studycitations
- 2022Setting the optimal laser power for sustainable powder bed fusion processing of elastomeric polyesters : a combined experimental and theoretical studycitations
- 2022Thermal and thermal-oxidative molecular degradation of polystyrene and acrylonitrile butadiene styrene during 3D printing starting from filaments and pelletscitations
- 2022Exploiting mono‐ and hybrid nanocomposite materials for fused filament fabrication with acrylonitrile butadiene styrene as polymer matrixcitations
- 2022Upgrading theoretical models for understanding selective laser sintering parameters for polymeric materials
- 2022Exploiting mono‐ and hybrid nanocomposite materials for fused filament fabrication with <scp>acrylonitrile butadiene styrene</scp> as polymer matrixcitations
- 2022Fused filament fabrication of copolyesters by understanding the balance of inter- and intra-layer weldingcitations
- 2022The influence of the filament manufacturing technique on the degradation, mechanical properties, and dispersion state of ABS-graphene printed nanocomposites
- 2022Lifting the sustainability of modified pet-based multilayer packaging material with enhanced mechanical recycling potential and processingcitations
- 2022Continuous fiber-reinforced aramid/PETG 3D-printed composites with high fiber loading through fused filament fabricationcitations
- 2022Increasing the sustainability of the hybrid mold technique through combined insert polymeric material and additive manufacturing method designcitations
- 2021A combined experimental and modeling study for pellet-fed extrusion-based additive manufacturing to evaluate the impact of the melting efficiencycitations
- 2021Lifting the quality of fused filament fabrication of polylactic acid based compositescitations
- 2021Influence of machine type and consecutive closed-loop recycling on macroscopic properties for fused filament fabrication of acrylonitrile-butadiene-styrene partscitations
- 2020The transferability and design of commercial printer settings in PLA/PBAT fused filament fabricationcitations
- 2020MFC concept as a possible solution for closed-loop recycling of food packaging trayscitations
- 2020Influence of different stabilization systems and multiple ultraviolet A (UVA) aging/recycling steps on physicochemical, mechanical, colorimetric, and thermal-oxidative properties of ABScitations
- 2019A statistical analysis on the effect of antioxidants on the thermal-oxidative stability of commercial mass- and emulsion-polymerized ABScitations
- 2019Bio-material polylactic acid/poly(butylene adipate-co-terephthalate) blend developed for extrusion- based additive manufacturing
- 2019Bio-material polylactic acid/poly(butylene adipate-co-terephthalate) blend developed for extrusion- based additive manufacturing
- 2019Improving mechanical properties for extrusion-based additive manufacturing of poly(lactic acid) by annealing and blending with poly(3-hydroxybutyrate)citations
- 2019Bio-material polylactic acid/poly(butylene adipate-co-terephthalate) blend development for extrusion-based additive manufacturing
- 2019Bio-material polylactic acid/poly(butylene adipate-co-terephthalate) blend development for extrusion-based additive manufacturing
- 2018Polypropylene Filled With Glass Spheres in Extrusion‐Based Additive Manufacturingcitations
- 2016Shaping ceramics through indirect selective laser sinteringcitations
- 2015The upcycling of post-industrial PP/PET waste streams through in-situ microfibrillar preparationcitations
- 2014Indirect selective laser sintering of alumina
- 2014Comparison of different powder metallurgy processes to produce alumina parts through indirect Selective Laser Sintering
- 2013Polystyrene-coated alumina powder via dispersion polymerization for indirect selective laser sintering applicationscitations
- 2013Densification and Geometrical Assessments of Alumina Parts Produced Through Indirect Selective Laser Sintering of Alumina-Polystyrene Composite Powdercitations
- 2010The influence of the mould material on the rheology and mechanical characteristics of hybrid injection moulds
Places of action
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article
Thermal and thermal-oxidative molecular degradation of polystyrene and acrylonitrile butadiene styrene during 3D printing starting from filaments and pellets
Abstract
An important polymer processing technique is additive manufacturing (AM), which enables shape-free design of complex final parts with limited waste during the development change, at least if the impact of molecular degradation reactions is minimized. In the present work, polystyrene (PS) and acrylonitrile butadiene styrene (ABS) polymer have been processed via: (i) fused filament fabrication (FFF), separately accounting for the prior single screw extrusion (SSE) filament production; and (ii) pellet-based additive manufacturing (PBAM), which are two important AM techniques. The influence of printing temperature, layer thickness, printing velocity, and printing technique on the degradation of both polymeric materials is studied by means of thermogravimetric analysis (TGA), size exclusion chromatography (SEC), small amplitude oscillatory shearing tests (SAOS), Fourier-transform infrared spectroscopy (FTIR), and yellowness index (YI) measurements. For ABS, SSE-FF leads to more fission (higher mechanical loading) whereas PBAM results in more cross-linking (more thermal loading). For PS, fission is always dominant and this more evident under FFF conditions. ABS also exhibits yellowing upon processing, indicating thermo-oxidative degradation although below the FTIR sensitivity limit. The selected PBAM conditions with PS are already delivering printed specimens with good mechanical properties and lower degradation. For ABS, a further PBAM optimization is still desired compared to the FFF countercase, taking into account layer-by-layer adhesion.