Synthesis and characterization of polyurethane and samarium(III) oxide and holmium(III) oxide composites
| Autor: | Lucas Repecka Alves, Giovanni Miraveti Carriello, Guilherme Manassés Pegoraro, Henrique Solowej Medeiros Lopes, Thaís de Agrella Janolla, Airton Natanael Coelho Dias, Giovanni Pimenta Mambrini, Maira de Lourdes Rezende, Aparecido Junior de Menezes |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Polímeros, Vol 33, Iss 4 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1678-5169 0104-1428 |
| DOI: | 10.1590/0104-1428.20230023 |
| Popis: | Abstract Polyurethanes, versatile polymers extensively explored across industries, can be augmented by incorporating complementary materials like lanthanides. This research presents a novel approach, employing a one-shot synthesis to create polyurethane-lanthanide composites using polyol, isocyanate, samarium, and holmium oxides. FTIR and Raman spectroscopy affirmed successful polyurethane matrix formation, while XRD unveiled distinct phases in lanthanide-loaded matrices versus soft, low-crystallinity polyurethane in control foam. Optical microscopy displayed morphology alterations due to samarium and holmium. Thermogravimetric analysis revealed heightened composite thermal stability compared to control foam. Looking ahead, these outcomes prompt further exploration of polyurethane-lanthanide composites, particularly in harnessing property changes for diverse applications. |
| Databáze: | Directory of Open Access Journals |
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