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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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Hofstätter, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2018Thermal behaviour of additively manufactured injection moulding inserts
- 2018Flow Characteristics of a Thermoset Fiber Composite Photopolymer Resin in a Vat Polymerization Additive Manufacturing Processcitations
- 2018Evolution of Additively Manufactured Injection Molding Inserts Investigated by Thermal Simulationscitations
- 2018Internal Fiber Structure of a High-Performing, Additively Manufactured Injection Molding Insertcitations
- 2017Rheology of high melt strength polypropylene for additive manufacturingcitations
- 2017Performance Simulation and Verification of Vat Photopolymerization Based, Additively Manufactured Injection Molding Inserts with Micro-Featurescitations
- 2017Performance Simulation and Verification of Vat Photopolymerization Based, Additively Manufactured Injection Molding Inserts with Micro-Featurescitations
- 2017Integration of Fiber-Reinforced Polymers in a Life Cycle Assessment of Injection Molding Process Chains with Additive Manufacturingcitations
- 2017Life Cycle Assessment of Fiber-Reinforced Additive Manufacturing for Injection Molding Insert Production
- 2017Dimensional accuracy of Acrylonitrile Butadiene Styrene injection molded parts produced in a pilot produc
- 2017Applications of Fiber-Reinforced Polymers in Additive Manufacturingcitations
- 2016Rheology of High-Melt-Strength Polypropylene for Additive Manufacturing
- 2016Distribution and Orientation of Carbon Fibers in Polylactic Acid Parts Produced by Fused Deposition Modeling
- 2016Distribution and Orientation of Carbon Fibers in Polylactic Acid Parts Produced by Fused Deposition Modeling
- 2016Comparison of conventional Injection Mould Inserts to Additively Manufactured Inserts using Life Cycle Assessment
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article
Rheology of high melt strength polypropylene for additive manufacturing
Abstract
Rheological measurements of high melt strength polypropylene (HMS-PP) were used in order to generate master curves describing the shear-dependent viscosity in comparison to acrylonitrile butadiene styrene copolymer (ABS). The latter material showed specific disadvantages in terms of thermal stability, whereas HMS-PP showed a more stable behavior at the investigated temperatures. Hereafter, the material was used in a fused deposition modeling additive manufacturing process, focusing on the investigation of possible improvements of HMS-PP over ABS. Based on the extrusion parameters for ABS, adapted parameters for HMS-PP were determined using a fused deposition modeling test bench. The rheological survey clearly showed changes in the melt viscosity of both ABS and HMS-PP due to thermal degradation. However, the comparison of rheological data of the virgin materials with those of printed material showed negligible changes. This leads to the conclusion that the thermal degradation of HMS-PP and ABS during the fused deposition modeling process is negligible, due to the short exposure time to elevated temperatures. Copyright © 2017 VBRI Press.