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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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Razzaq, Muhammad Yasar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 20234D Printing of Electroactive Triple-Shape Compositescitations
- 20224D Printing of Multicomponent Shape-Memory Polymer Formulationscitations
- 2020Polyetheresterurethane based porous scaffolds with tailorable architectures by supercritical CO2 foamingcitations
- 2019Hydrolytic stability of aliphatic poly(carbonate-urea-urethane)s: Influence of hydrocarbon chain length in soft segmentcitations
- 2019Matching magnetic heating and thermal actuation for sequential coupling in hybrid composites by designcitations
- 2018Reprogrammable, magnetically controlled polymeric nanocomposite actuatorscitations
- 2018Reprogrammable, magnetically controlled polymeric nanocomposite actuatorscitations
- 2018Thermally-induced actuation of magnetic nanocomposites based on Oligo(ω-pentadecalactone) and covalently integrated magnetic nanoparticlescitations
- 2015Thermally Controlled Shape-Memory Investigations of Nanocomposites Based on Oligo(<i>ω</i>-pentadecalactone) and Magnetic Nanoparticles Acting as Crosslinkscitations
- 2013Tailoring the recovery force in magnetic shape-memory nanocompositescitations
- 2012Shape-Memory Properties of Nanocomposites based on Poly(ω-pentadecalactone) and Magnetic Nanoparticlescitations
- 2012Oligo(omega-pentadecalactone) decorated magnetic nanoparticlescitations
Places of action
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article
4D Printing of Electroactive Triple-Shape Composites
Abstract
Triple-shape polymers can memorize two independent shapes during a controlled recovery process. This work reports the 4D printing of electro-active triple-shape composites based on thermoplastic blends. Composite blends comprising polyester urethane (PEU), polylactic acid (PLA), and multiwall carbon nanotubes (MWCNTs) as conductive fillers were prepared by conventional melt processing methods. Morphological analysis of the composites revealed a phase separated morphology with aggregates of MWCNTs uniformly dispersed in the blend. Thermal analysis showed two different transition temperatures based on the melting point of the crystallizable switching domain of the PEU (Tm~50 ± 1 °C) and the glass transition temperature of amorphous PLA (Tg~61 ± 1 °C). The composites were suitable for 3D printing by fused filament fabrication (FFF). 3D models based on single or multiple materials were printed to demonstrate and quantify the triple-shape effect. The resulting parts were subjected to resistive heating by passing electric current at different voltages. The printed demonstrators were programmed by a thermo-mechanical programming procedure and the triple-shape effect was realized by increasing the voltage in a stepwise fashion. The 3D printing of such electroactive composites paves the way for more complex shapes with defined geometries and novel methods for triggering shape memory, with potential applications in space, robotics, and actuation technologies.