Low temperature processing of solution-derived ceria deposits on flat surfaces of 3D-printed polyamide
| Autor: | Jordi Farjas, Albert Calleja, Valentina Roxana Vlad, Sergio Morales-Planas, J. Oró-Solé, Joaquim Minguella-Canela |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica, Universitat Politècnica de Catalunya. TECNOFAB - Grup de Recerca en Tecnologies de Fabricació |
| Předmět: |
Thermogravimetric analysis
Materials science 3D-printing Evolved gas analysis Scanning electron microscope Polymers Polyamides 02 engineering and technology 01 natural sciences Crystallinity Differential scanning calorimetry Enginyeria mecànica [Àrees temàtiques de la UPC] Ceria X-ray photoelectron spectroscopy 0103 physical sciences Materials Chemistry Functionalization 010302 applied physics Three-dimensional printing Poliamides Metals and Alloys Surfaces and Interfaces 021001 nanoscience & nanotechnology Metalorganic decomposition Surfaces Coatings and Films Electronic Optical and Magnetic Materials Polímers Electron diffraction Chemical engineering Transmission electron microscopy Polyamide 0210 nano-technology Impressió 3D |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname Digital.CSIC. Repositorio Institucional del CSIC UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) © Thin Solid Films, 2019, vol. 685, p. 75-80 Articles publicats (D-F) Morales Planas, Sergio Calleja, Alberto Vlad, Roxana Oró-Solé, Judith Minguella Canela, Joaquim. Farjas Silva, Jordi 2019 Low temperature processing of solution-derived ceria deposits on flat surfaces of 3D-printed polyamide Thin Solid Films 685 75 80 DUGiDocs – Universitat de Girona |
| Popis: | Doped ceria deposits have been prepared on 3D-printed polyamide-12 components starting from inkjet-compatible solutions in an attempt to functionalize the surface of the plastic part, followed by a low temperature decomposition process at 160 °C in air. The non-continuous deposits were characterized by simultaneous thermogravimetric analysis, differential scanning calorimetry and evolved gas analysis, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy, transmission electron microscopy and electron diffraction. After thermal treatment, the deposits are still clearly visible at the surface of the polymer. However, no crystallinity of the ceria is observed, in contrast to identical low temperature processing on inert substrates such as glass where nanoparticle ceria aggregates were produced. This is tentatively explained by the chemically-reducing character of the polyamide, and in particular to CO and hydrocarbon gases released during the heating process, which would continuously induce the reduction of Ce4+ to Ce3+ at the low temperature of 160 °C, influencing the non-detection of crystalline ceria. |
| Databáze: | OpenAIRE |
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